Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (368 commits)
  Staging: winbond: fix up wireless api errors
  Staging: dream: camera: sk5k3e2fx: fix code style issues
  Staging: dream: camera: msm_camera: fix code style issues
  Staging: wlan-ng: More checkpatch.pl error cleanups
  Staging: wlan-ng - checkpatch.pl fixups
  Staging: comedi: comedi_fops.c: Checkpatch cleanup
  Staging: comedi: fix suspect code indent in ni_labpc.c
  Staging: comedi: fix yet another brace coding style issue in ni_labpc.c
  Staging: comedi: fix another brace coding style issues in ni_labpc.c
  Staging: comedi: fix brace coding style issue in ni_labpc.c
  Staging: comedi: poc: Adding some KERN_ facility level
  Staging: dream: camera: msm_camera: fix some code style issues
  Staging: wlan-ng: fix most of the style issues in hfa384x.h
  Staging: dream: camera: msm_camera: fix coding style issues
  Staging: comedi: fix bracing coding style and 80 character issues in ni_660x.c
  Staging: comedi: fix bracing coding style issue in ni_65xx.c
  Staging: comedi: pcmad: Checkpatch cleanups
  Staging: comedi: poc: fix coding style issues
  staging: dt3155: revert u_long to u64 usage
  Staging: comedi: drivers.c: Checkpatch cleanup
  ...

drivers/staging/Kconfig

@@ -71,8 +71,6 @@ source "drivers/staging/asus_oled/Kconfig"
 
 source "drivers/staging/panel/Kconfig"
 
-source "drivers/staging/altpciechdma/Kconfig"
-
 source "drivers/staging/rtl8187se/Kconfig"
 
 source "drivers/staging/rtl8192su/Kconfig"
@@ -81,20 +79,14 @@ source "drivers/staging/rtl8192u/Kconfig"
 
 source "drivers/staging/rtl8192e/Kconfig"
 
-source "drivers/staging/mimio/Kconfig"
-
 source "drivers/staging/frontier/Kconfig"
 
 source "drivers/staging/dream/Kconfig"
 
 source "drivers/staging/pohmelfs/Kconfig"
 
-source "drivers/staging/b3dfg/Kconfig"
-
 source "drivers/staging/phison/Kconfig"
 
-source "drivers/staging/p9auth/Kconfig"
-
 source "drivers/staging/line6/Kconfig"
 
 source "drivers/gpu/drm/vmwgfx/Kconfig"
@@ -117,7 +109,7 @@ source "drivers/staging/hv/Kconfig"
 
 source "drivers/staging/vme/Kconfig"
 
-source "drivers/staging/rar/Kconfig"
+source "drivers/staging/rar_register/Kconfig"
 
 source "drivers/staging/sep/Kconfig"
 
@@ -143,5 +135,9 @@ source "drivers/staging/netwave/Kconfig"
 
 source "drivers/staging/sm7xx/Kconfig"
 
+source "drivers/staging/dt3155/Kconfig"
+
+source "drivers/staging/crystalhd/Kconfig"
+
 endif # !STAGING_EXCLUDE_BUILD
 endif # STAGING

drivers/staging/Makefile

@@ -18,18 +18,14 @@ obj-$(CONFIG_RT2870)		+= rt2870/
 obj-$(CONFIG_COMEDI)		+= comedi/
 obj-$(CONFIG_ASUS_OLED)		+= asus_oled/
 obj-$(CONFIG_PANEL)		+= panel/
-obj-$(CONFIG_ALTERA_PCIE_CHDMA)	+= altpciechdma/
 obj-$(CONFIG_R8187SE)		+= rtl8187se/
 obj-$(CONFIG_RTL8192SU)		+= rtl8192su/
 obj-$(CONFIG_RTL8192U)		+= rtl8192u/
 obj-$(CONFIG_RTL8192E)		+= rtl8192e/
-obj-$(CONFIG_INPUT_MIMIO)	+= mimio/
 obj-$(CONFIG_TRANZPORT)		+= frontier/
 obj-$(CONFIG_DREAM)		+= dream/
 obj-$(CONFIG_POHMELFS)		+= pohmelfs/
-obj-$(CONFIG_B3DFG)		+= b3dfg/
 obj-$(CONFIG_IDE_PHISON)	+= phison/
-obj-$(CONFIG_PLAN9AUTH)		+= p9auth/
 obj-$(CONFIG_LINE6_USB)		+= line6/
 obj-$(CONFIG_USB_SERIAL_QUATECH2)	+= serqt_usb2/
 obj-$(CONFIG_USB_SERIAL_QUATECH_USB2)	+= quatech_usb2/
@@ -39,7 +35,7 @@ obj-$(CONFIG_VT6656)		+= vt6656/
 obj-$(CONFIG_FB_UDL)		+= udlfb/
 obj-$(CONFIG_HYPERV)		+= hv/
 obj-$(CONFIG_VME_BUS)		+= vme/
-obj-$(CONFIG_RAR_REGISTER)	+= rar/
+obj-$(CONFIG_RAR_REGISTER)	+= rar_register/
 obj-$(CONFIG_DX_SEP)		+= sep/
 obj-$(CONFIG_IIO)		+= iio/
 obj-$(CONFIG_RAMZSWAP)		+= ramzswap/
@@ -53,3 +49,5 @@ obj-$(CONFIG_WAVELAN)		+= wavelan/
 obj-$(CONFIG_PCMCIA_WAVELAN)	+= wavelan/
 obj-$(CONFIG_PCMCIA_NETWAVE)	+= netwave/
 obj-$(CONFIG_FB_SM7XX)		+= sm7xx/
+obj-$(CONFIG_DT3155)		+= dt3155/
+obj-$(CONFIG_CRYSTALHD)		+= crystalhd/

drivers/staging/altpciechdma/Kconfig

@@ -1,10 +0,0 @@
-config ALTERA_PCIE_CHDMA
-	tristate "Altera PCI Express Chaining DMA driver"
-	depends on PCI
-	default N
-	---help---
-	  A reference driver that exercises the Chaining DMA logic reference
-	  design generated along the Altera FPGA PCI Express soft or hard core,
-	  only if instantiated using the MegaWizard, not the SOPC builder, of
-	  Quartus 8.1.
-

drivers/staging/altpciechdma/Makefile

@@ -1,2 +0,0 @@
-obj-$(CONFIG_ALTERA_PCIE_CHDMA)	+= altpciechdma.o
-

drivers/staging/altpciechdma/TODO

@@ -1,15 +0,0 @@
-DONE:
-    - functionality similar to logic testbench
-
-TODO:
-	- checkpatch.pl cleanups.
-	- keep state of DMA engines.
-	- keep data structure that keeps state of each transfer.
-	- interrupt handler should iterate over outstanding descriptor tables.
-	- complete userspace cdev to read/write using the DMA engines.
-	- split off the DMA support functions in a module, re-usable by custom
-	  drivers.
-
-Please coordinate work with, and send patches to
-Leon Woestenberg <leon@sidebranch.com>
-

drivers/staging/altpciechdma/altpciechdma.c

@@ -1,1182 +0,0 @@
-/**
- * Driver for Altera PCIe core chaining DMA reference design.
- *
- * Copyright (C) 2008 Leon Woestenberg  <leon.woestenberg@axon.tv>
- * Copyright (C) 2008 Nickolas Heppermann  <heppermannwdt@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- *
- * Rationale: This driver exercises the chaining DMA read and write engine
- * in the reference design. It is meant as a complementary reference
- * driver that can be used for testing early designs as well as a basis to
- * write your custom driver.
- *
- * Status: Test results from Leon Woestenberg  <leon.woestenberg@axon.tv>:
- *
- * Sendero Board w/ Cyclone II EP2C35F672C6N, PX1011A PCIe x1 PHY on a
- * Dell Precision 370 PC, x86, kernel 2.6.20 from Ubuntu 7.04.
- *
- * Sendero Board w/ Cyclone II EP2C35F672C6N, PX1011A PCIe x1 PHY on a
- * Freescale MPC8313E-RDB board, PowerPC, 2.6.24 w/ Freescale patches.
- *
- * Driver tests passed with PCIe Compiler 8.1. With PCIe 8.0 the DMA
- * loopback test had reproducable compare errors. I assume a change
- * in the compiler or reference design, but could not find evidence nor
- * documentation on a change or fix in that direction.
- *
- * The reference design does not have readable locations and thus a
- * dummy read, used to flush PCI posted writes, cannot be performed.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/cdev.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/jiffies.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-
-
-/* by default do not build the character device interface */
-/* XXX It is non-functional yet */
-#ifndef ALTPCIECHDMA_CDEV
-#  define ALTPCIECHDMA_CDEV 0
-#endif
-
-/* build the character device interface? */
-#if ALTPCIECHDMA_CDEV
-#  define MAX_CHDMA_SIZE (8 * 1024 * 1024)
-#  include "mapper_user_to_sg.h"
-#endif
-
-/** driver name, mimicks Altera naming of the reference design */
-#define DRV_NAME "altpciechdma"
-/** number of BARs on the device */
-#define APE_BAR_NUM (6)
-/** BAR number where the RCSLAVE memory sits */
-#define APE_BAR_RCSLAVE (0)
-/** BAR number where the Descriptor Header sits */
-#define APE_BAR_HEADER (2)
-
-/** maximum size in bytes of the descriptor table, chdma logic limit */
-#define APE_CHDMA_TABLE_SIZE (4096)
-/* single transfer must not exceed 255 table entries. worst case this can be
- * achieved by 255 scattered pages, with only a single byte in the head and
- * tail pages. 253 * PAGE_SIZE is a safe upper bound for the transfer size.
- */
-#define APE_CHDMA_MAX_TRANSFER_LEN (253 * PAGE_SIZE)
-
-/**
- * Specifies those BARs to be mapped and the length of each mapping.
- *
- * Zero (0) means do not map, otherwise specifies the BAR lengths to be mapped.
- * If the actual BAR length is less, this is considered an error; then
- * reconfigure your PCIe core.
- *
- * @see ug_pci_express 8.0, table 7-2 at page 7-13.
- */
-static const unsigned long bar_min_len[APE_BAR_NUM] =
-	{ 32768, 0, 256, 0, 32768, 0 };
-
-/**
- * Descriptor Header, controls the DMA read engine or write engine.
- *
- * The descriptor header is the main data structure for starting DMA transfers.
- *
- * It sits in End Point (FPGA) memory BAR[2] for 32-bit or BAR[3:2] for 64-bit.
- * It references a descriptor table which exists in Root Complex (PC) memory.
- * Writing the rclast field starts the DMA operation, thus all other structures
- * and fields must be setup before doing so.
- *
- * @see ug_pci_express 8.0, tables 7-3, 7-4 and 7-5 at page 7-14.
- * @note This header must be written in four 32-bit (PCI DWORD) writes.
- */
-struct ape_chdma_header {
-	/**
-	 * w0 consists of two 16-bit fields:
-	 * lsb u16 number; number of descriptors in ape_chdma_table
-	 * msb u16 control; global control flags
-	 */
-	u32 w0;
-	/* bus address to ape_chdma_table in Root Complex memory */
-	u32 bdt_addr_h;
-	u32 bdt_addr_l;
-	/**
-	 * w3 consists of two 16-bit fields:
-	 * - lsb u16 rclast; last descriptor number available in Root Complex
-	 *    - zero (0) means the first descriptor is ready,
-	 *    - one (1) means two descriptors are ready, etc.
-	 * - msb u16 reserved;
-	 *
-	 * @note writing to this memory location starts the DMA operation!
-	 */
-	u32 w3;
-} __attribute__ ((packed));
-
-/**
- * Descriptor Entry, describing a (non-scattered) single memory block transfer.
- *
- * There is one descriptor for each memory block involved in the transfer, a
- * block being a contiguous address range on the bus.
- *
- * Multiple descriptors are chained by means of the ape_chdma_table data
- * structure.
- *
- * @see ug_pci_express 8.0, tables 7-6, 7-7 and 7-8 at page 7-14 and page 7-15.
- */
-struct ape_chdma_desc {
-	/**
-	 * w0 consists of two 16-bit fields:
-	 * number of DWORDS to transfer
-	 * - lsb u16 length;
-	 * global control
-	 * - msb u16 control;
-	 */
-	u32 w0;
-	/* address of memory in the End Point */
-	u32 ep_addr;
-	/* bus address of source or destination memory in the Root Complex */
-	u32 rc_addr_h;
-	u32 rc_addr_l;
-} __attribute__ ((packed));
-
-/**
- * Descriptor Table, an array of descriptors describing a chained transfer.
- *
- * An array of descriptors, preceded by workspace for the End Point.
- * It exists in Root Complex memory.
- *
- * The End Point can update its last completed descriptor number in the
- * eplast field if requested by setting the EPLAST_ENA bit either
- * globally in the header's or locally in any descriptor's control field.
- *
- * @note this structure may not exceed 4096 bytes. This results in a
- * maximum of 4096 / (4 * 4) - 1 = 255 descriptors per chained transfer.
- *
- * @see ug_pci_express 8.0, tables 7-9, 7-10 and 7-11 at page 7-17 and page 7-18.
- */
-struct ape_chdma_table {
-	/* workspace 0x00-0x0b, reserved */
-	u32 reserved1[3];
-	/* workspace 0x0c-0x0f, last descriptor handled by End Point */
-	u32 w3;
-	/* the actual array of descriptors
-    * 0x10-0x1f, 0x20-0x2f, ... 0xff0-0xfff (255 entries)
-    */
-	struct ape_chdma_desc desc[255];
-} __attribute__ ((packed));
-
-/**
- * Altera PCI Express ('ape') board specific book keeping data
- *
- * Keeps state of the PCIe core and the Chaining DMA controller
- * application.
- */
-struct ape_dev {
-	/** the kernel pci device data structure provided by probe() */
-	struct pci_dev *pci_dev;
-	/**
-	 * kernel virtual address of the mapped BAR memory and IO regions of
-	 * the End Point. Used by map_bars()/unmap_bars().
-	 */
-	void * __iomem bar[APE_BAR_NUM];
-	/** kernel virtual address for Descriptor Table in Root Complex memory */
-	struct ape_chdma_table *table_virt;
-	/**
-	 * bus address for the Descriptor Table in Root Complex memory, in
-	 * CPU-native endianess
-	 */
-	dma_addr_t table_bus;
-	/* if the device regions could not be allocated, assume and remember it
-	 * is in use by another driver; this driver must not disable the device.
-	 */
-	int in_use;
-	/* whether this driver enabled msi for the device */
-	int msi_enabled;
-	/* whether this driver could obtain the regions */
-	int got_regions;
-	/* irq line successfully requested by this driver, -1 otherwise */
-	int irq_line;
-	/* board revision */
-	u8 revision;
-	/* interrupt count, incremented by the interrupt handler */
-	int irq_count;
-#if ALTPCIECHDMA_CDEV
-	/* character device */
-	dev_t cdevno;
-	struct cdev cdev;
-	/* user space scatter gather mapper */
-	struct sg_mapping_t *sgm;
-#endif
-};
-
-/**
- * Using the subsystem vendor id and subsystem id, it is possible to
- * distinguish between different cards bases around the same
- * (third-party) logic core.
- *
- * Default Altera vendor and device ID's, and some (non-reserved)
- * ID's are now used here that are used amongst the testers/developers.
- */
-static const struct pci_device_id ids[] = {
-	{ PCI_DEVICE(0x1172, 0xE001), },
-	{ PCI_DEVICE(0x2071, 0x2071), },
-	{ 0, }
-};
-MODULE_DEVICE_TABLE(pci, ids);
-
-#if ALTPCIECHDMA_CDEV
-/* prototypes for character device */
-static int sg_init(struct ape_dev *ape);
-static void sg_exit(struct ape_dev *ape);
-#endif
-
-/**
- * altpciechdma_isr() - Interrupt handler
- *
- */
-static irqreturn_t altpciechdma_isr(int irq, void *dev_id)
-{
-	struct ape_dev *ape = (struct ape_dev *)dev_id;
-	if (!ape)
-		return IRQ_NONE;
-	ape->irq_count++;
-	return IRQ_HANDLED;
-}
-
-static int __devinit scan_bars(struct ape_dev *ape, struct pci_dev *dev)
-{
-	int i;
-	for (i = 0; i < APE_BAR_NUM; i++) {
-		unsigned long bar_start = pci_resource_start(dev, i);
-		if (bar_start) {
-			unsigned long bar_end = pci_resource_end(dev, i);
-			unsigned long bar_flags = pci_resource_flags(dev, i);
-			printk(KERN_DEBUG "BAR%d 0x%08lx-0x%08lx flags 0x%08lx\n",
-			  i, bar_start, bar_end, bar_flags);
-		}
-	}
-	return 0;
-}
-
-/**
- * Unmap the BAR regions that had been mapped earlier using map_bars()
- */
-static void unmap_bars(struct ape_dev *ape, struct pci_dev *dev)
-{
-	int i;
-	for (i = 0; i < APE_BAR_NUM; i++) {
-	  /* is this BAR mapped? */
-		if (ape->bar[i]) {
-			/* unmap BAR */
-			pci_iounmap(dev, ape->bar[i]);
-			ape->bar[i] = NULL;
-		}
-	}
-}
-
-/**
- * Map the device memory regions into kernel virtual address space after
- * verifying their sizes respect the minimum sizes needed, given by the
- * bar_min_len[] array.
- */
-static int __devinit map_bars(struct ape_dev *ape, struct pci_dev *dev)
-{
-	int rc;
-	int i;
-	/* iterate through all the BARs */
-	for (i = 0; i < APE_BAR_NUM; i++) {
-		unsigned long bar_start = pci_resource_start(dev, i);
-		unsigned long bar_end = pci_resource_end(dev, i);
-		unsigned long bar_length = bar_end - bar_start + 1;
-		ape->bar[i] = NULL;
-		/* do not map, and skip, BARs with length 0 */
-		if (!bar_min_len[i])
-			continue;
-		/* do not map BARs with address 0 */
-		if (!bar_start || !bar_end) {
-			printk(KERN_DEBUG "BAR #%d is not present?!\n", i);
-			rc = -1;
-			goto fail;
-		}
-		bar_length = bar_end - bar_start + 1;
-		/* BAR length is less than driver requires? */
-		if (bar_length < bar_min_len[i]) {
-			printk(KERN_DEBUG "BAR #%d length = %lu bytes but driver "
-			"requires at least %lu bytes\n",
-			i, bar_length, bar_min_len[i]);
-			rc = -1;
-			goto fail;
-		}
-		/* map the device memory or IO region into kernel virtual
-		 * address space */
-		ape->bar[i] = pci_iomap(dev, i, bar_min_len[i]);
-		if (!ape->bar[i]) {
-			printk(KERN_DEBUG "Could not map BAR #%d.\n", i);
-			rc = -1;
-			goto fail;
-		}
-		printk(KERN_DEBUG "BAR[%d] mapped at 0x%p with length %lu(/%lu).\n", i,
-		ape->bar[i], bar_min_len[i], bar_length);
-	}
-	/* successfully mapped all required BAR regions */
-	rc = 0;
-	goto success;
-fail:
-	/* unmap any BARs that we did map */
-	unmap_bars(ape, dev);
-success:
-	return rc;
-}
-
-#if 0 /* not yet implemented fully FIXME add opcode */
-static void __devinit rcslave_test(struct ape_dev *ape, struct pci_dev *dev)
-{
-	u32 *rcslave_mem = (u32 *)ape->bar[APE_BAR_RCSLAVE];
-	u32 result = 0;
-	/** this number is assumed to be different each time this test runs */
-	u32 seed = (u32)jiffies;
-	u32 value = seed;
-	int i;
-
-	/* write loop */
-	value = seed;
-	for (i = 1024; i < 32768 / 4 ; i++) {
-		printk(KERN_DEBUG "Writing 0x%08x to 0x%p.\n",
-			(u32)value, (void *)rcslave_mem + i);
-		iowrite32(value, rcslave_mem + i);
-		value++;
-	}
-	/* read-back loop */
-	value = seed;
-	for (i = 1024; i < 32768 / 4; i++) {
-		result = ioread32(rcslave_mem + i);
-		if (result != value) {
-			printk(KERN_DEBUG "Wrote 0x%08x to 0x%p, but read back 0x%08x.\n",
-				(u32)value, (void *)rcslave_mem + i, (u32)result);
-			break;
-		}
-		value++;
-	}
-}
-#endif
-
-/* obtain the 32 most significant (high) bits of a 32-bit or 64-bit address */
-#define pci_dma_h(addr) ((addr >> 16) >> 16)
-/* obtain the 32 least significant (low) bits of a 32-bit or 64-bit address */
-#define pci_dma_l(addr) (addr & 0xffffffffUL)
-
-/* ape_fill_chdma_desc() - Fill a Altera PCI Express Chaining DMA descriptor
- *
- * @desc pointer to descriptor to be filled
- * @addr root complex address
- * @ep_addr end point address
- * @len number of bytes, must be a multiple of 4.
- */
-static inline void ape_chdma_desc_set(struct ape_chdma_desc *desc, dma_addr_t addr, u32 ep_addr, int len)
-{
-  BUG_ON(len & 3);
-	desc->w0 = cpu_to_le32(len / 4);
-	desc->ep_addr = cpu_to_le32(ep_addr);
-	desc->rc_addr_h = cpu_to_le32(pci_dma_h(addr));
-	desc->rc_addr_l = cpu_to_le32(pci_dma_l(addr));
-}
-
-#if ALTPCIECHDMA_CDEV
-/*
- * ape_sg_to_chdma_table() - Create a device descriptor table from a scatterlist.
- *
- * The scatterlist must have been mapped by pci_map_sg(sgm->sgl).
- *
- * @sgl scatterlist.
- * @nents Number of entries in the scatterlist.
- * @first Start index in the scatterlist sgm->sgl.
- * @ep_addr End Point address for the scatter/gather transfer.
- * @desc pointer to first descriptor
- *
- * Returns Number of entries in the table on success, -1 on error.
- */
-static int ape_sg_to_chdma_table(struct scatterlist *sgl, int nents, int first, struct ape_chdma_desc *desc, u32 ep_addr)
-{
-	int i = first, j = 0;
-	/* inspect first entry */
-	dma_addr_t addr = sg_dma_address(&sgl[i]);
-	unsigned int len = sg_dma_len(&sgl[i]);
-	/* contiguous block */
-	dma_addr_t cont_addr = addr;
-	unsigned int cont_len = len;
-	/* iterate over remaining entries */
-	for (; j < 25 && i < nents - 1; i++) {
-		/* bus address of next entry i + 1 */
-		dma_addr_t next = sg_dma_address(&sgl[i + 1]);
-		/* length of this entry i */
-		len = sg_dma_len(&sgl[i]);
-		printk(KERN_DEBUG "%04d: addr=0x%Lx length=0x%08x\n", i,
-			(unsigned long long)addr, len);
-		/* entry i + 1 is non-contiguous with entry i? */
-		if (next != addr + len) {
-			/* TODO create entry here (we could overwrite i) */
-			printk(KERN_DEBUG "%4d: cont_addr=0x%Lx cont_len=0x%08x\n", j,
-				(unsigned long long)cont_addr, cont_len);
-			/* set descriptor for contiguous transfer */
-			ape_chdma_desc_set(&desc[j], cont_addr, ep_addr, cont_len);
-			/* next end point memory address */
-			ep_addr += cont_len;
-			/* start new contiguous block */
-			cont_addr = next;
-			cont_len = 0;
-			j++;
-		}
-		/* add entry i + 1 to current contiguous block */
-		cont_len += len;
-		/* goto entry i + 1 */
-		addr = next;
-	}
-	/* TODO create entry here  (we could overwrite i) */
-	printk(KERN_DEBUG "%04d: addr=0x%Lx length=0x%08x\n", i,
-		(unsigned long long)addr, len);
-	printk(KERN_DEBUG "%4d: cont_addr=0x%Lx length=0x%08x\n", j,
-		(unsigned long long)cont_addr, cont_len);
-	j++;
-	return j;
-}
-#endif
-
-/* compare buffers */
-static inline int compare(u32 *p, u32 *q, int len)
-{
-	int result = -1;
-	int fail = 0;
-	int i;
-	for (i = 0; i < len / 4; i++) {
-		if (*p == *q) {
-			/* every so many u32 words, show equals */
-			if ((i & 255) == 0)
-				printk(KERN_DEBUG "[%p] = 0x%08x    [%p] = 0x%08x\n", p, *p, q, *q);
-		} else {
-			fail++;
-			/* show the first few miscompares */
-			if (fail < 10)
-				printk(KERN_DEBUG "[%p] = 0x%08x != [%p] = 0x%08x ?!\n", p, *p, q, *q);
-				/* but stop after a while */
-			else if (fail == 10)
-				printk(KERN_DEBUG "---more errors follow! not printed---\n");
-			else
-				/* stop compare after this many errors */
-			break;
-		}
-		p++;
-		q++;
-	}
-	if (!fail)
-		result = 0;
-	return result;
-}
-
-/* dma_test() - Perform DMA loop back test to end point and back to root complex.
- *
- * Allocate a cache-coherent buffer in host memory, consisting of four pages.
- *
- * Fill the four memory pages such that each 32-bit word contains its own address.
- *
- * Now perform a loop back test, have the end point device copy the first buffer
- * half to end point memory, then have it copy back into the second half.
- *
- *   Create a descriptor table to copy the first buffer half into End Point
- *   memory. Instruct the End Point to do a DMA read using that table.
- *
- *   Create a descriptor table to copy End Point memory to the second buffer
- *   half. Instruct the End Point to do a DMA write using that table.
- *
- * Compare results, fail or pass.
- *
- */
-static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
-{
-	/* test result; guilty until proven innocent */
-	int result = -1;
-	/* the DMA read header sits at address 0x00 of the DMA engine BAR */
-	struct ape_chdma_header *write_header = (struct ape_chdma_header *)ape->bar[APE_BAR_HEADER];
-	/* the write DMA header sits after the read header at address 0x10 */
-	struct ape_chdma_header *read_header = write_header + 1;
-	/* virtual address of the allocated buffer */
-	u8 *buffer_virt = 0;
-	/* bus address of the allocated buffer */
-	dma_addr_t buffer_bus = 0;
-	int i, n = 0, irq_count;
-
-	/* temporary value used to construct 32-bit data words */
-	u32 w;
-
-	printk(KERN_DEBUG "bar_tests(), PAGE_SIZE = 0x%0x\n", (int)PAGE_SIZE);
-	printk(KERN_DEBUG "write_header = 0x%p.\n", write_header);
-	printk(KERN_DEBUG "read_header = 0x%p.\n", read_header);
-	printk(KERN_DEBUG "&write_header->w3 = 0x%p\n", &write_header->w3);
-	printk(KERN_DEBUG "&read_header->w3 = 0x%p\n", &read_header->w3);
-	printk(KERN_DEBUG "ape->table_virt = 0x%p.\n", ape->table_virt);
-
-	if (!write_header || !read_header || !ape->table_virt)
-		goto fail;
-
-	/* allocate and map coherently-cached memory for a DMA-able buffer */
-	/* @see Documentation/PCI/PCI-DMA-mapping.txt, near line 318 */
-	buffer_virt = (u8 *)pci_alloc_consistent(dev, PAGE_SIZE * 4, &buffer_bus);
-	if (!buffer_virt) {
-		printk(KERN_DEBUG "Could not allocate coherent DMA buffer.\n");
-		goto fail;
-	}
-	printk(KERN_DEBUG "Allocated cache-coherent DMA buffer (virtual address = %p, bus address = 0x%016llx).\n",
-	       buffer_virt, (u64)buffer_bus);
-
-	/* fill first half of buffer with its virtual address as data */
-	for (i = 0; i < 4 * PAGE_SIZE; i += 4)
-#if 0
-		*(u32 *)(buffer_virt + i) = i / PAGE_SIZE + 1;
-#else
-		*(u32 *)(buffer_virt + i) = (u32)(unsigned long)(buffer_virt + i);
-#endif
-#if 0
-  compare((u32 *)buffer_virt, (u32 *)(buffer_virt + 2 * PAGE_SIZE), 8192);
-#endif
-
-#if 0
-	/* fill second half of buffer with zeroes */
-	for (i = 2 * PAGE_SIZE; i < 4 * PAGE_SIZE; i += 4)
-		*(u32 *)(buffer_virt + i) = 0;
-#endif
-
-	/* invalidate EPLAST, outside 0-255, 0xFADE is from the testbench */
-	ape->table_virt->w3 = cpu_to_le32(0x0000FADE);
-
-	/* fill in first descriptor */
-	n = 0;
-	/* read 8192 bytes from RC buffer to EP address 4096 */
-	ape_chdma_desc_set(&ape->table_virt->desc[n], buffer_bus, 4096, 2 * PAGE_SIZE);
-#if 1
-	for (i = 0; i < 255; i++)
-		ape_chdma_desc_set(&ape->table_virt->desc[i], buffer_bus, 4096, 2 * PAGE_SIZE);
-	/* index of last descriptor */
-	n = i - 1;
-#endif
-#if 0
-	/* fill in next descriptor */
-	n++;
-	/* read 1024 bytes from RC buffer to EP address 4096 + 1024 */
-	ape_chdma_desc_set(&ape->table_virt->desc[n], buffer_bus + 1024, 4096 + 1024, 1024);
-#endif
-
-#if 1
-	/* enable MSI after the last descriptor is completed */
-	if (ape->msi_enabled)
-		ape->table_virt->desc[n].w0 |= cpu_to_le32(1UL << 16)/*local MSI*/;
-#endif
-#if 0
-	/* dump descriptor table for debugging */
-	printk(KERN_DEBUG "Descriptor Table (Read, in Root Complex Memory, # = %d)\n", n + 1);
-	for (i = 0; i < 4 + (n + 1) * 4; i += 4) {
-		u32 *p = (u32 *)ape->table_virt;
-		p += i;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (LEN=0x%x)\n", (u32)p, (u32)p & 15, *p, 4 * le32_to_cpu(*p));
-		p++;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (EPA=0x%x)\n", (u32)p, (u32)p & 15, *p, le32_to_cpu(*p));
-		p++;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (RCH=0x%x)\n", (u32)p, (u32)p & 15, *p, le32_to_cpu(*p));
-		p++;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (RCL=0x%x)\n", (u32)p, (u32)p & 15, *p, le32_to_cpu(*p));
-	}
-#endif
-	/* set available number of descriptors in table */
-	w = (u32)(n + 1);
-	w |= (1UL << 18)/*global EPLAST_EN*/;
-#if 0
-	if (ape->msi_enabled)
-		w |= (1UL << 17)/*global MSI*/;
-#endif
-	printk(KERN_DEBUG "writing 0x%08x to 0x%p\n", w, (void *)&read_header->w0);
-	iowrite32(w, &read_header->w0);
-
-	/* write table address (higher 32-bits) */
-	printk(KERN_DEBUG "writing 0x%08x to 0x%p\n", (u32)((ape->table_bus >> 16) >> 16), (void *)&read_header->bdt_addr_h);
-	iowrite32(pci_dma_h(ape->table_bus), &read_header->bdt_addr_h);
-
-	/* write table address (lower 32-bits) */
-	printk(KERN_DEBUG "writing 0x%08x to 0x%p\n", (u32)(ape->table_bus & 0xffffffffUL), (void *)&read_header->bdt_addr_l);
-	iowrite32(pci_dma_l(ape->table_bus), &read_header->bdt_addr_l);
-
-	/* memory write barrier */
-	wmb();
-	printk(KERN_DEBUG "Flush posted writes\n");
-	/** FIXME Add dummy read to flush posted writes but need a readable location! */
-#if 0
-	(void)ioread32();
-#endif
-
-	/* remember IRQ count before the transfer */
-	irq_count = ape->irq_count;
-	/* write number of descriptors - this starts the DMA */
-	printk(KERN_DEBUG "\nStart DMA read\n");
-	printk(KERN_DEBUG "writing 0x%08x to 0x%p\n", (u32)n, (void *)&read_header->w3);
-	iowrite32(n, &read_header->w3);
-	printk(KERN_DEBUG "EPLAST = %lu\n", le32_to_cpu(*(u32 *)&ape->table_virt->w3) & 0xffffUL);
-
-	/** memory write barrier */
-	wmb();
-	/* dummy read to flush posted writes */
-	/* FIXME Need a readable location! */
-#if 0
-	(void)ioread32();
-#endif
-	printk(KERN_DEBUG "POLL FOR READ:\n");
-	/* poll for chain completion, 1000 times 1 millisecond */
-	for (i = 0; i < 100; i++) {
-		volatile u32 *p = &ape->table_virt->w3;
-		u32 eplast = le32_to_cpu(*p) & 0xffffUL;
-		printk(KERN_DEBUG "EPLAST = %u, n = %d\n", eplast, n);
-		if (eplast == n) {
-			printk(KERN_DEBUG "DONE\n");
-			/* print IRQ count before the transfer */
-			printk(KERN_DEBUG "#IRQs during transfer: %d\n", ape->irq_count - irq_count);
-			break;
-		}
-		udelay(100);
-	}
-
-	/* invalidate EPLAST, outside 0-255, 0xFADE is from the testbench */
-	ape->table_virt->w3 = cpu_to_le32(0x0000FADE);
-
-	/* setup first descriptor */
-	n = 0;
-	ape_chdma_desc_set(&ape->table_virt->desc[n], buffer_bus + 8192, 4096, 2 * PAGE_SIZE);
-#if 1
-	for (i = 0; i < 255; i++)
-		ape_chdma_desc_set(&ape->table_virt->desc[i], buffer_bus + 8192, 4096, 2 * PAGE_SIZE);
-
-	/* index of last descriptor */
-	n = i - 1;
-#endif
-#if 1 /* test variable, make a module option later */
-	if (ape->msi_enabled)
-		ape->table_virt->desc[n].w0 |= cpu_to_le32(1UL << 16)/*local MSI*/;
-#endif
-#if 0
-	/* dump descriptor table for debugging */
-	printk(KERN_DEBUG "Descriptor Table (Write, in Root Complex Memory, # = %d)\n", n + 1);
-	for (i = 0; i < 4 + (n + 1) * 4; i += 4) {
-		u32 *p = (u32 *)ape->table_virt;
-		p += i;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (LEN=0x%x)\n", (u32)p, (u32)p & 15, *p, 4 * le32_to_cpu(*p));
-		p++;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (EPA=0x%x)\n", (u32)p, (u32)p & 15, *p, le32_to_cpu(*p));
-		p++;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (RCH=0x%x)\n", (u32)p, (u32)p & 15, *p, le32_to_cpu(*p));
-		p++;
-		printk(KERN_DEBUG "0x%08x/0x%02x: 0x%08x (RCL=0x%x)\n", (u32)p, (u32)p & 15, *p, le32_to_cpu(*p));
-	}
-#endif
-
-	/* set number of available descriptors in the table */
-	w = (u32)(n + 1);
-	/* enable updates of eplast for each descriptor completion */
-	w |= (u32)(1UL << 18)/*global EPLAST_EN*/;
-#if 0   /* test variable, make a module option later */
-	/* enable MSI for each descriptor completion */
-	if (ape->msi_enabled)
-		w |= (1UL << 17)/*global MSI*/;
-#endif
-	iowrite32(w, &write_header->w0);
-	iowrite32(pci_dma_h(ape->table_bus), &write_header->bdt_addr_h);
-	iowrite32(pci_dma_l(ape->table_bus), &write_header->bdt_addr_l);
-
-	/** memory write barrier and flush posted writes */
-	wmb();
-	/* dummy read to flush posted writes */
-	/* FIXME Need a readable location! */
-#if 0
-	(void)ioread32();
-#endif
-	irq_count = ape->irq_count;
-
-	printk(KERN_DEBUG "\nStart DMA write\n");
-	iowrite32(n, &write_header->w3);
-
-	/** memory write barrier */
-	wmb();
-	/** dummy read to flush posted writes */
-	/* (void) ioread32(); */
-
-	printk(KERN_DEBUG "POLL FOR WRITE:\n");
-	/* poll for completion, 1000 times 1 millisecond */
-	for (i = 0; i < 100; i++) {
-		volatile u32 *p = &ape->table_virt->w3;
-		u32 eplast = le32_to_cpu(*p) & 0xffffUL;
-		printk(KERN_DEBUG "EPLAST = %u, n = %d\n", eplast, n);
-		if (eplast == n) {
-			printk(KERN_DEBUG "DONE\n");
-			/* print IRQ count before the transfer */
-			printk(KERN_DEBUG "#IRQs during transfer: %d\n", ape->irq_count - irq_count);
-			break;
-		}
-		udelay(100);
-	}
-	/* soft-reset DMA write engine */
-	iowrite32(0x0000ffffUL, &write_header->w0);
-	/* soft-reset DMA read engine */
-	iowrite32(0x0000ffffUL, &read_header->w0);
-
-	/** memory write barrier */
-	wmb();
-	/* dummy read to flush posted writes */
-	/* FIXME Need a readable location! */
-#if 0
-	(void)ioread32();
-#endif
-	/* compare first half of buffer with second half, should be identical */
-	result = compare((u32 *)buffer_virt, (u32 *)(buffer_virt + 2 * PAGE_SIZE), 8192);
-	printk(KERN_DEBUG "DMA loop back test %s.\n", result ? "FAILED" : "PASSED");
-
-	pci_free_consistent(dev, 4 * PAGE_SIZE, buffer_virt, buffer_bus);
-fail:
-	printk(KERN_DEBUG "bar_tests() end, result %d\n", result);
-	return result;
-}
-
-/* Called when the PCI sub system thinks we can control the given device.
- * Inspect if we can support the device and if so take control of it.
- *
- * Return 0 when we have taken control of the given device.
- *
- * - allocate board specific bookkeeping
- * - allocate coherently-mapped memory for the descriptor table
- * - enable the board
- * - verify board revision
- * - request regions
- * - query DMA mask
- * - obtain and request irq
- * - map regions into kernel address space
- */
-static int __devinit probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	int rc = 0;
-	struct ape_dev *ape = NULL;
-	u8 irq_pin, irq_line;
-	printk(KERN_DEBUG "probe(dev = 0x%p, pciid = 0x%p)\n", dev, id);
-
-	/* allocate memory for per-board book keeping */
-	ape = kzalloc(sizeof(struct ape_dev), GFP_KERNEL);
-	if (!ape) {
-		printk(KERN_DEBUG "Could not kzalloc()ate memory.\n");
-		goto err_ape;
-	}
-	ape->pci_dev = dev;
-	dev_set_drvdata(&dev->dev, ape);
-	printk(KERN_DEBUG "probe() ape = 0x%p\n", ape);
-
-	printk(KERN_DEBUG "sizeof(struct ape_chdma_table) = %d.\n",
-		(int)sizeof(struct ape_chdma_table));
-	/* the reference design has a size restriction on the table size */
-	BUG_ON(sizeof(struct ape_chdma_table) > APE_CHDMA_TABLE_SIZE);
-
-	/* allocate and map coherently-cached memory for a descriptor table */
-	/* @see LDD3 page 446 */
-	ape->table_virt = (struct ape_chdma_table *)pci_alloc_consistent(dev,
-		APE_CHDMA_TABLE_SIZE, &ape->table_bus);
-	/* could not allocate table? */
-	if (!ape->table_virt) {
-		printk(KERN_DEBUG "Could not dma_alloc()ate_coherent memory.\n");
-		goto err_table;
-	}
-
-	printk(KERN_DEBUG "table_virt = %p, table_bus = 0x%16llx.\n",
-		ape->table_virt, (u64)ape->table_bus);
-
-	/* enable device */
-	rc = pci_enable_device(dev);
-	if (rc) {
-		printk(KERN_DEBUG "pci_enable_device() failed\n");
-		goto err_enable;
-	}
-
-	/* enable bus master capability on device */
-	pci_set_master(dev);
-	/* enable message signaled interrupts */
-	rc = pci_enable_msi(dev);
-	/* could not use MSI? */
-	if (rc) {
-		/* resort to legacy interrupts */
-		printk(KERN_DEBUG "Could not enable MSI interrupting.\n");
-		ape->msi_enabled = 0;
-	/* MSI enabled, remember for cleanup */
-	} else {
-		printk(KERN_DEBUG "Enabled MSI interrupting.\n");
-		ape->msi_enabled = 1;
-	}
-
-	pci_read_config_byte(dev, PCI_REVISION_ID, &ape->revision);
-#if 0 /* example */
-	/* (for example) this driver does not support revision 0x42 */
-    if (ape->revision == 0x42) {
-		printk(KERN_DEBUG "Revision 0x42 is not supported by this driver.\n");
-		rc = -ENODEV;
-		goto err_rev;
-	}
-#endif
-	/** XXX check for native or legacy PCIe endpoint? */
-
-	rc = pci_request_regions(dev, DRV_NAME);
-	/* could not request all regions? */
-	if (rc) {
-		/* assume device is in use (and do not disable it later!) */
-		ape->in_use = 1;
-		goto err_regions;
-	}
-	ape->got_regions = 1;
-
-#if 1   /* @todo For now, disable 64-bit, because I do not understand the implications (DAC!) */
-	/* query for DMA transfer */
-	/* @see Documentation/PCI/PCI-DMA-mapping.txt */
-	if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))) {
-		pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64));
-		/* use 64-bit DMA */
-		printk(KERN_DEBUG "Using a 64-bit DMA mask.\n");
-	} else
-#endif
-	if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
-		printk(KERN_DEBUG "Could not set 64-bit DMA mask.\n");
-		pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32));
-		/* use 32-bit DMA */
-		printk(KERN_DEBUG "Using a 32-bit DMA mask.\n");
-	} else {
-		printk(KERN_DEBUG "No suitable DMA possible.\n");
-		/** @todo Choose proper error return code */
-		rc = -1;
-		goto err_mask;
-	}
-
-	rc = pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq_pin);
-	/* could not read? */
-	if (rc)
-		goto err_irq;
-	printk(KERN_DEBUG "IRQ pin #%d (0=none, 1=INTA#...4=INTD#).\n", irq_pin);
-
-	/* @see LDD3, page 318 */
-	rc = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq_line);
-	/* could not read? */
-	if (rc) {
-		printk(KERN_DEBUG "Could not query PCI_INTERRUPT_LINE, error %d\n", rc);
-		goto err_irq;
-	}
-	printk(KERN_DEBUG "IRQ line #%d.\n", irq_line);
-#if 1
-	irq_line = dev->irq;
-	/* @see LDD3, page 259 */
-	rc = request_irq(irq_line, altpciechdma_isr, IRQF_SHARED, DRV_NAME, (void *)ape);
-	if (rc) {
-		printk(KERN_DEBUG "Could not request IRQ #%d, error %d\n", irq_line, rc);
-		ape->irq_line = -1;
-		goto err_irq;
-	}
-	/* remember which irq we allocated */
-	ape->irq_line = (int)irq_line;
-	printk(KERN_DEBUG "Succesfully requested IRQ #%d with dev_id 0x%p\n", irq_line, ape);
-#endif
-	/* show BARs */
-	scan_bars(ape, dev);
-	/* map BARs */
-	rc = map_bars(ape, dev);
-	if (rc)
-		goto err_map;
-#if ALTPCIECHDMA_CDEV
-	/* initialize character device */
-	rc = sg_init(ape);
-	if (rc)
-		goto err_cdev;
-#endif
-	/* perform DMA engines loop back test */
-	rc = dma_test(ape, dev);
-	(void)rc;
-	/* successfully took the device */
-	rc = 0;
-	printk(KERN_DEBUG "probe() successful.\n");
-	goto end;
-#if ALTPCIECHDMA_CDEV
-err_cdev:
-	/* unmap the BARs */
-	unmap_bars(ape, dev);
-#endif
-err_map:
-	/* free allocated irq */
-	if (ape->irq_line >= 0)
-		free_irq(ape->irq_line, (void *)ape);
-err_irq:
-	if (ape->msi_enabled)
-		pci_disable_msi(dev);
-	/* disable the device iff it is not in use */
-	if (!ape->in_use)
-		pci_disable_device(dev);
-	if (ape->got_regions)
-		pci_release_regions(dev);
-err_mask:
-err_regions:
-/*err_rev:*/
-/* clean up everything before device enable() */
-err_enable:
-	if (ape->table_virt)
-		pci_free_consistent(dev, APE_CHDMA_TABLE_SIZE, ape->table_virt, ape->table_bus);
-/* clean up everything before allocating descriptor table */
-err_table:
-	if (ape)
-		kfree(ape);
-err_ape:
-end:
-	return rc;
-}
-
-static void __devexit remove(struct pci_dev *dev)
-{
-	struct ape_dev *ape = dev_get_drvdata(&dev->dev);
-
-	printk(KERN_DEBUG "remove(0x%p)\n", dev);
-	printk(KERN_DEBUG "remove(dev = 0x%p) where ape = 0x%p\n", dev, ape);
-
-	/* remove character device */
-#if ALTPCIECHDMA_CDEV
-	sg_exit(ape);
-#endif
-
-	if (ape->table_virt)
-		pci_free_consistent(dev, APE_CHDMA_TABLE_SIZE, ape->table_virt, ape->table_bus);
-
-	/* free IRQ
-	 * @see LDD3 page 279
-	 */
-	if (ape->irq_line >= 0) {
-		printk(KERN_DEBUG "Freeing IRQ #%d for dev_id 0x%08lx.\n",
-		ape->irq_line, (unsigned long)ape);
-		free_irq(ape->irq_line, (void *)ape);
-	}
-	/* MSI was enabled? */
-	if (ape->msi_enabled) {
-		/* Disable MSI @see Documentation/MSI-HOWTO.txt */
-		pci_disable_msi(dev);
-		ape->msi_enabled = 0;
-	}
-	/* unmap the BARs */
-	unmap_bars(ape, dev);
-	if (!ape->in_use)
-		pci_disable_device(dev);
-	if (ape->got_regions)
-		/* to be called after device disable */
-		pci_release_regions(dev);
-}
-
-#if ALTPCIECHDMA_CDEV
-
-/*
- * Called when the device goes from unused to used.
- */
-static int sg_open(struct inode *inode, struct file *file)
-{
-	struct ape_dev *ape;
-	printk(KERN_DEBUG DRV_NAME "_open()\n");
-	/* pointer to containing data structure of the character device inode */
-	ape = container_of(inode->i_cdev, struct ape_dev, cdev);
-	/* create a reference to our device state in the opened file */
-	file->private_data = ape;
-	/* create virtual memory mapper */
-	ape->sgm = sg_create_mapper(MAX_CHDMA_SIZE);
-	return 0;
-}
-
-/*
- * Called when the device goes from used to unused.
- */
-static int sg_close(struct inode *inode, struct file *file)
-{
-	/* fetch device specific data stored earlier during open */
-	struct ape_dev *ape = (struct ape_dev *)file->private_data;
-	printk(KERN_DEBUG DRV_NAME "_close()\n");
-	/* destroy virtual memory mapper */
-	sg_destroy_mapper(ape->sgm);
-	return 0;
-}
-
-static ssize_t sg_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
-{
-	/* fetch device specific data stored earlier during open */
-	struct ape_dev *ape = (struct ape_dev *)file->private_data;
-	(void)ape;
-	printk(KERN_DEBUG DRV_NAME "_read(buf=0x%p, count=%lld, pos=%llu)\n", buf, (s64)count, (u64)*pos);
-	return count;
-}
-
-/* sg_write() - Write to the device
- *
- * @buf userspace buffer
- * @count number of bytes in the userspace buffer
- *
- * Iterate over the userspace buffer, taking at most 255 * PAGE_SIZE bytes for
- * each DMA transfer.
- *   For each transfer, get the user pages, build a sglist, map, build a
- *   descriptor table. submit the transfer. wait for the interrupt handler
- *   to wake us on completion.
- */
-static ssize_t sg_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
-{
-	int hwnents, tents;
-	size_t transfer_len, remaining = count, done = 0;
-	u64 transfer_addr = (u64)buf;
-	/* fetch device specific data stored earlier during open */
-	struct ape_dev *ape = (struct ape_dev *)file->private_data;
-	printk(KERN_DEBUG DRV_NAME "_write(buf=0x%p, count=%lld, pos=%llu)\n",
-		buf, (s64)count, (u64)*pos);
-	/* TODO transfer boundaries at PAGE_SIZE granularity */
-	while (remaining > 0) {
-		/* limit DMA transfer size */
-		transfer_len = (remaining < APE_CHDMA_MAX_TRANSFER_LEN) ? remaining :
-			APE_CHDMA_MAX_TRANSFER_LEN;
-		/* get all user space buffer pages and create a scattergather list */
-		sgm_map_user_pages(ape->sgm, transfer_addr, transfer_len, 0/*read from userspace*/);
-		printk(KERN_DEBUG DRV_NAME "mapped_pages=%d\n", ape->sgm->mapped_pages);
-		/* map all entries in the scattergather list */
-		hwnents = pci_map_sg(ape->pci_dev, ape->sgm->sgl, ape->sgm->mapped_pages, DMA_TO_DEVICE);
-		printk(KERN_DEBUG DRV_NAME "hwnents=%d\n", hwnents);
-		/* build device descriptor tables and submit them to the DMA engine */
-		tents = ape_sg_to_chdma_table(ape->sgm->sgl, hwnents, 0, &ape->table_virt->desc[0], 4096);
-		printk(KERN_DEBUG DRV_NAME "tents=%d\n", hwnents);
-#if 0
-		while (tables) {
-			/* TODO build table */
-			/* TODO submit table to the device */
-			/* if engine stopped and unfinished work then start engine */
-		}
-		put ourselves on wait queue
-#endif
-
-		dma_unmap_sg(NULL, ape->sgm->sgl, ape->sgm->mapped_pages, DMA_TO_DEVICE);
-		/* dirty and free the pages */
-		sgm_unmap_user_pages(ape->sgm, 1/*dirtied*/);
-		/* book keeping */
-		transfer_addr += transfer_len;
-		remaining -= transfer_len;
-		done += transfer_len;
-	}
-	return done;
-}
-
-/*
- * character device file operations
- */
-static const struct file_operations sg_fops = {
-	.owner = THIS_MODULE,
-	.open = sg_open,
-	.release = sg_close,
-	.read = sg_read,
-	.write = sg_write,
-};
-
-/* sg_init() - Initialize character device
- *
- * XXX Should ideally be tied to the device, on device probe, not module init.
- */
-static int sg_init(struct ape_dev *ape)
-{
-	int rc;
-	printk(KERN_DEBUG DRV_NAME " sg_init()\n");
-	/* allocate a dynamically allocated character device node */
-	rc = alloc_chrdev_region(&ape->cdevno, 0/*requested minor*/, 1/*count*/, DRV_NAME);
-	/* allocation failed? */
-	if (rc < 0) {
-		printk("alloc_chrdev_region() = %d\n", rc);
-		goto fail_alloc;
-	}
-	/* couple the device file operations to the character device */
-	cdev_init(&ape->cdev, &sg_fops);
-	ape->cdev.owner = THIS_MODULE;
-	/* bring character device live */
-	rc = cdev_add(&ape->cdev, ape->cdevno, 1/*count*/);
-	if (rc < 0) {
-		printk("cdev_add() = %d\n", rc);
-		goto fail_add;
-	}
-	printk(KERN_DEBUG "altpciechdma = %d:%d\n", MAJOR(ape->cdevno), MINOR(ape->cdevno));
-	return 0;
-fail_add:
-	/* free the dynamically allocated character device node */
-    unregister_chrdev_region(ape->cdevno, 1/*count*/);
-fail_alloc:
-	return -1;
-}
-
-/* sg_exit() - Cleanup character device
- *
- * XXX Should ideally be tied to the device, on device remove, not module exit.
- */
-
-static void sg_exit(struct ape_dev *ape)
-{
-	printk(KERN_DEBUG DRV_NAME " sg_exit()\n");
-	/* remove the character device */
-	cdev_del(&ape->cdev);
-	/* free the dynamically allocated character device node */
-	unregister_chrdev_region(ape->cdevno, 1/*count*/);
-}
-
-#endif /* ALTPCIECHDMA_CDEV */
-
-/* used to register the driver with the PCI kernel sub system
- * @see LDD3 page 311
- */
-static struct pci_driver pci_driver = {
-	.name = DRV_NAME,
-	.id_table = ids,
-	.probe = probe,
-	.remove = __devexit_p(remove),
-	/* resume, suspend are optional */
-};
-
-/**
- * alterapciechdma_init() - Module initialization, registers devices.
- */
-static int __init alterapciechdma_init(void)
-{
-	int rc = 0;
-	printk(KERN_DEBUG DRV_NAME " init(), built at " __DATE__ " " __TIME__ "\n");
-	/* register this driver with the PCI bus driver */
-	rc = pci_register_driver(&pci_driver);
-	if (rc < 0)
-		return rc;
-	return 0;
-}
-
-/**
- * alterapciechdma_init() - Module cleanup, unregisters devices.
- */
-static void __exit alterapciechdma_exit(void)
-{
-	printk(KERN_DEBUG DRV_NAME " exit(), built at " __DATE__ " " __TIME__ "\n");
-	/* unregister this driver from the PCI bus driver */
-	pci_unregister_driver(&pci_driver);
-}
-
-MODULE_LICENSE("GPL");
-
-module_init(alterapciechdma_init);
-module_exit(alterapciechdma_exit);
-

drivers/staging/arlan/Makefile

@@ -1,3 +1,3 @@
-obj-$(CONFIG_ARLAN) += arlan.o 
+obj-$(CONFIG_ARLAN) += arlan.o
 
 arlan-objs := arlan-main.o arlan-proc.o

drivers/staging/arlan/arlan.h

@@ -1,6 +1,6 @@
 /*
  *  Copyright (C) 1997 Cullen Jennings
- *  Copyright (C) 1998 Elmer.Joandi@ut.ee, +37-255-13500	
+ *  Copyright (C) 1998 Elmer.Joandi@ut.ee, +37-255-13500
  *  GNU General Public License applies
  */
 
@@ -20,14 +20,14 @@
 #include <linux/init.h>
 #include <linux/bitops.h>
 #include <asm/system.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <linux/errno.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 
 
-//#define ARLAN_DEBUGGING 1
+/* #define ARLAN_DEBUGGING 1 */
 
 #define ARLAN_PROC_INTERFACE
 #define MAX_ARLANS 4 /* not more than 4 ! */
@@ -51,8 +51,8 @@ extern int	arlan_debug;
 extern int	arlan_entry_debug;
 extern int	arlan_exit_debug;
 extern int	testMemory;
-extern int     arlan_command(struct net_device * dev, int command);
- 
+extern int     arlan_command(struct net_device *dev, int command);
+
 #define SIDUNKNOWN -1
 #define radioNodeIdUNKNOWN -1
 #define irqUNKNOWN 0
@@ -65,22 +65,21 @@ extern int     arlan_command(struct net_device * dev, int command);
 #define registrationModeUNKNOWN -1
 
 
-#define IFDEBUG( L ) if ( (L) & arlan_debug ) 
-#define ARLAN_FAKE_HDR_LEN 12 
+#define IFDEBUG(L) if ((L) & arlan_debug)
+#define ARLAN_FAKE_HDR_LEN 12
 
 #ifdef ARLAN_DEBUGGING
 	#define DEBUG 1
 	#define ARLAN_ENTRY_EXIT_DEBUGGING 1
-	#define ARLAN_DEBUG(a,b) printk(KERN_DEBUG a, b)
+	#define ARLAN_DEBUG(a, b) printk(KERN_DEBUG a, b)
 #else
-	#define ARLAN_DEBUG(a,b) 
+	#define ARLAN_DEBUG(a, b)
 #endif
 
 #define ARLAN_SHMEM_SIZE	0x2000
 
-struct arlan_shmem
-{
-      /* Header Signature */ 
+struct arlan_shmem {
+      /* Header Signature */
       volatile	char textRegion[48];
       volatile	u_char resetFlag;
       volatile	u_char  diagnosticInfo;
@@ -91,10 +90,10 @@ struct arlan_shmem
       volatile	u_char hardwareType;
       volatile	u_char majorHardwareVersion;
       volatile	u_char minorHardwareVersion;
-      volatile	u_char radioModule;// shows EEPROM, can be overridden at 0x111
-      volatile	u_char defaultChannelSet; // shows EEProm, can be overriiden at 0x10A
+      volatile	u_char radioModule;/* shows EEPROM, can be overridden at 0x111 */
+      volatile	u_char defaultChannelSet; /* shows EEProm, can be overriiden at 0x10A */
       volatile	u_char _2[47];
-      
+
       /* Control/Status Block - 0x0080 */
       volatile	u_char interruptInProgress; /* not used by lancpu */
       volatile	u_char cntrlRegImage; /* not used by lancpu */
@@ -113,7 +112,7 @@ struct arlan_shmem
       volatile	u_char rxQuality;
       volatile	u_char scrambled;
       volatile	u_char _4[1];
-      
+
       /* Transmit Status - 0x00b0 */
       volatile	u_char txStatus;
       volatile	u_char txAckQuality;
@@ -151,7 +150,7 @@ struct arlan_shmem
       volatile	u_short routerId;
       volatile	u_char _10[9];
       volatile	u_char txAttenuation;
-      volatile	u_char systemId[4]; 
+      volatile	u_char systemId[4];
       volatile	u_short globalChecksum;
       volatile	u_char _11[4];
       volatile	u_short maxDatagramSize;
@@ -207,19 +206,19 @@ struct arlan_shmem
       volatile	u_char hostcpuLock;
       volatile	u_char lancpuLock;
       volatile	u_char resetTime[18];
-      
+
       volatile	u_char numDatagramsTransmitted[4];
       volatile	u_char numReTransmissions[4];
       volatile	u_char numFramesDiscarded[4];
       volatile	u_char numDatagramsReceived[4];
       volatile	u_char numDuplicateReceivedFrames[4];
       volatile	u_char numDatagramsDiscarded[4];
-      
+
       volatile	u_short maxNumReTransmitDatagram;
       volatile	u_short maxNumReTransmitFrames;
       volatile	u_short maxNumConsecutiveDuplicateFrames;
       /* misaligned here so we have to go to characters */
-     
+
       volatile	u_char numBytesTransmitted[4];
       volatile	u_char numBytesReceived[4];
       volatile	u_char numCRCErrors[4];
@@ -259,7 +258,7 @@ struct arlan_conf_stru {
       int channelNumber;
       int scramblingDisable;
       int txAttenuation;
-      int systemId; 
+      int systemId;
       int maxDatagramSize;
       int maxFrameSize;
       int maxRetries;
@@ -316,8 +315,7 @@ struct arlan_conf_stru {
 
 extern struct arlan_conf_stru arlan_conf[MAX_ARLANS];
 
-struct TxParam
-{
+struct TxParam {
       volatile	short 		offset;
       volatile 	short 		length;
       volatile	u_char 		dest[6];
@@ -330,12 +328,12 @@ struct TxParam
 #define TX_RING_SIZE 2
 /* Information that need to be kept for each board. */
 struct arlan_private {
-      struct arlan_shmem __iomem * card;
-      struct arlan_shmem * conf;
+      struct arlan_shmem __iomem *card;
+      struct arlan_shmem *conf;
 
-      struct arlan_conf_stru * Conf;	     
+      struct arlan_conf_stru *Conf;
       int	bad;
-      int 	reset;
+      int	reset;
       unsigned long lastReset;
       struct timer_list timer;
       struct timer_list tx_delay_timer;
@@ -407,38 +405,38 @@ struct arlan_private {
 
 #define TXBuffStart(dev) offsetof(struct arlan_shmem, txBuffer)
 #define TXBuffEnd(dev) offsetof(struct arlan_shmem, xxBuffer)
- 
-#define READSHM(to,from,atype) {\
+
+#define READSHM(to, from, atype) {\
 	atype tmp;\
-	memcpy_fromio(&(tmp),&(from),sizeof(atype));\
+	memcpy_fromio(&(tmp), &(from), sizeof(atype));\
 	to = tmp;\
 	}
 
-#define READSHMEM(from,atype)\
+#define READSHMEM(from, atype)\
 	atype from; \
 	READSHM(from, arlan->from, atype);
 
-#define WRITESHM(to,from,atype) \
+#define WRITESHM(to, from, atype) \
 	{ atype tmpSHM = from;\
-	memcpy_toio(&(to),&tmpSHM,sizeof(atype));\
+	memcpy_toio(&(to), &tmpSHM, sizeof(atype));\
 	}
 
-#define DEBUGSHM(levelSHM,stringSHM,stuff,atype) \
+#define DEBUGSHM(levelSHM, stringSHM, stuff, atype) \
 	{	atype tmpSHM; \
-		memcpy_fromio(&tmpSHM,&(stuff),sizeof(atype));\
-		IFDEBUG(levelSHM) printk(stringSHM,tmpSHM);\
+		memcpy_fromio(&tmpSHM, &(stuff), sizeof(atype));\
+		IFDEBUG(levelSHM) printk(stringSHM, tmpSHM);\
 	}
 
 #define WRITESHMB(to, val) \
-	writeb(val,&(to))
+	writeb(val, &(to))
 #define READSHMB(to) \
 	readb(&(to))
 #define WRITESHMS(to, val) \
-	writew(val,&(to))
+	writew(val, &(to))
 #define READSHMS(to) \
 	readw(&(to))
 #define WRITESHMI(to, val) \
-	writel(val,&(to))
+	writel(val, &(to))
 #define READSHMI(to) \
 	readl(&(to))
 
@@ -447,51 +445,51 @@ struct arlan_private {
 
 
 #define registrationBad(dev)\
-   ( (   READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationMode)    > 0) && \
-     (   READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationStatus) == 0)    )
+    ((   READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationMode)    > 0) && \
+     (   READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationStatus) == 0))
 
 
 #define readControlRegister(dev)\
- 	READSHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage)
+	READSHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage)
 
-#define writeControlRegister(dev, v){\
-   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage	,((v) &0xF) );\
-   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->controlRegister	,(v) 	);}
+#define writeControlRegister(dev, v) {\
+   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage, ((v) & 0xF));\
+   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->controlRegister, (v)); }
 
 
 #define arlan_interrupt_lancpu(dev) {\
    int cr;   \
    \
    cr = readControlRegister(dev);\
-   if (cr & ARLAN_CHANNEL_ATTENTION){ \
+   if (cr & ARLAN_CHANNEL_ATTENTION) { \
       writeControlRegister(dev, (cr & ~ARLAN_CHANNEL_ATTENTION));\
-   }else  \
+   } else  \
       writeControlRegister(dev, (cr | ARLAN_CHANNEL_ATTENTION));\
 }
 
-#define clearChannelAttention(dev){ \
-   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CHANNEL_ATTENTION);}
+#define clearChannelAttention(dev) { \
+   writeControlRegister(dev, readControlRegister(dev) & ~ARLAN_CHANNEL_ATTENTION); }
 #define setHardwareReset(dev) {\
-   writeControlRegister(dev,readControlRegister(dev) | ARLAN_RESET);}
+   writeControlRegister(dev, readControlRegister(dev) | ARLAN_RESET); }
 #define clearHardwareReset(dev) {\
-   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_RESET);}
-#define setInterruptEnable(dev){\
-   writeControlRegister(dev,readControlRegister(dev) | ARLAN_INTERRUPT_ENABLE)  ;}
-#define clearInterruptEnable(dev){\
-   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_INTERRUPT_ENABLE)  ;}
-#define setClearInterrupt(dev){\
-   writeControlRegister(dev,readControlRegister(dev) | ARLAN_CLEAR_INTERRUPT)   ;}
-#define clearClearInterrupt(dev){\
-   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CLEAR_INTERRUPT);}
-#define setPowerOff(dev){\
-   writeControlRegister(dev,readControlRegister(dev) | (ARLAN_POWER && ARLAN_ACCESS));\
-   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
-#define setPowerOn(dev){\
-   writeControlRegister(dev,readControlRegister(dev) & ~(ARLAN_POWER));   }
-#define arlan_lock_card_access(dev){\
-   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
-#define arlan_unlock_card_access(dev){\
-   writeControlRegister(dev,readControlRegister(dev) | ARLAN_ACCESS ); }  
+   writeControlRegister(dev, readControlRegister(dev) & ~ARLAN_RESET); }
+#define setInterruptEnable(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) | ARLAN_INTERRUPT_ENABLE)  ; }
+#define clearInterruptEnable(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) & ~ARLAN_INTERRUPT_ENABLE)  ; }
+#define setClearInterrupt(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) | ARLAN_CLEAR_INTERRUPT)   ; }
+#define clearClearInterrupt(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) & ~ARLAN_CLEAR_INTERRUPT); }
+#define setPowerOff(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) | (ARLAN_POWER && ARLAN_ACCESS));\
+   writeControlRegister(dev, readControlRegister(dev) & ~ARLAN_ACCESS); }
+#define setPowerOn(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) & ~(ARLAN_POWER)); }
+#define arlan_lock_card_access(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) & ~ARLAN_ACCESS); }
+#define arlan_unlock_card_access(dev) {\
+   writeControlRegister(dev, readControlRegister(dev) | ARLAN_ACCESS); }
 
 
 
@@ -525,7 +523,6 @@ struct arlan_private {
 					| ARLAN_COMMAND_RESET)
 
 
- 
 #define ARLAN_DEBUG_CHAIN_LOCKS		0x00001
 #define ARLAN_DEBUG_RESET		0x00002
 #define ARLAN_DEBUG_TIMING		0x00004
@@ -536,4 +533,3 @@ struct arlan_private {
 #define ARLAN_DEBUG_INTERRUPT		0x00080
 #define ARLAN_DEBUG_STARTUP		0x00100
 #define ARLAN_DEBUG_SHUTDOWN		0x00200
- 

drivers/staging/asus_oled/asus_oled.c

@@ -52,6 +52,10 @@
 #define ASUS_OLED_DISP_HEIGHT		32
 #define ASUS_OLED_PACKET_BUF_SIZE	256
 
+#define USB_VENDOR_ID_ASUS      0x0b05
+#define USB_DEVICE_ID_ASUS_LCM      0x1726
+#define USB_DEVICE_ID_ASUS_LCM2     0x175b
+
 MODULE_AUTHOR("Jakub Schmidtke, sjakub@gmail.com");
 MODULE_DESCRIPTION("Asus OLED Driver v" ASUS_OLED_VERSION);
 MODULE_LICENSE("GPL");
@@ -83,18 +87,20 @@ struct oled_dev_desc_str {
 };
 
 /* table of devices that work with this driver */
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
 	/* Asus G1/G2 (and variants)*/
-	{ USB_DEVICE(0x0b05, 0x1726) },
+	{ USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM) },
 	/* Asus G50V (and possibly others - G70? G71?)*/
-	{ USB_DEVICE(0x0b05, 0x175b) },
+	{ USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM2) },
 	{ },
 };
 
 /* parameters of specific devices */
 static struct oled_dev_desc_str oled_dev_desc_table[] = {
-	{ 0x0b05, 0x1726, 128, PACK_MODE_G1, "G1/G2" },
-	{ 0x0b05, 0x175b, 256, PACK_MODE_G50, "G50" },
+	{ USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM, 128, PACK_MODE_G1,
+		"G1/G2" },
+	{ USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM2, 256, PACK_MODE_G50,
+		"G50" },
 	{ },
 };
 
@@ -424,6 +430,11 @@ static ssize_t odev_set_picture(struct asus_oled_dev *odev,
 
 		kfree(odev->buf);
 		odev->buf = kmalloc(odev->buf_size, GFP_KERNEL);
+		if (odev->buf == NULL) {
+			odev->buf_size = 0;
+			printk(ASUS_OLED_ERROR "Out of memory!\n");
+			return -ENOMEM;
+		}
 
 		memset(odev->buf, 0xff, odev->buf_size);
 

drivers/staging/b3dfg/Kconfig

@@ -1,10 +0,0 @@
-config B3DFG
-       tristate "Brontes 3d Frame Framegrabber"
-       depends on PCI
-       default n
-       ---help---
-         This driver provides support for the Brontes 3d Framegrabber
-         PCI card.
-
-         To compile this driver as a module, choose M here. The module
-         will be called b3dfg.

drivers/staging/b3dfg/Makefile

@@ -1 +0,0 @@
-obj-$(CONFIG_B3DFG) += b3dfg.o

drivers/staging/b3dfg/TODO

@@ -1,4 +0,0 @@
-
- - queue/wait buffer presents filltime results for each frame?
- - counting of dropped frames
- - review endianness

drivers/staging/b3dfg/b3dfg.c

@@ -1,1100 +0,0 @@
- /*
- * Brontes PCI frame grabber driver
- *
- * Copyright (C) 2008 3M Company
- * Contact: Justin Bronder <jsbronder@brontes3d.com>
- * Original Authors: Daniel Drake <ddrake@brontes3d.com>
- *                   Duane Griffin <duaneg@dghda.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/device.h>
-#include <linux/fs.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/ioctl.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/types.h>
-#include <linux/cdev.h>
-#include <linux/list.h>
-#include <linux/poll.h>
-#include <linux/wait.h>
-#include <linux/mm.h>
-#include <linux/uaccess.h>
-#include <linux/sched.h>
-
-static unsigned int b3dfg_nbuf = 2;
-
-module_param_named(buffer_count, b3dfg_nbuf, uint, 0444);
-
-MODULE_PARM_DESC(buffer_count, "Number of buffers (min 2, default 2)");
-
-MODULE_AUTHOR("Daniel Drake <ddrake@brontes3d.com>");
-MODULE_DESCRIPTION("Brontes frame grabber driver");
-MODULE_LICENSE("GPL");
-
-#define DRIVER_NAME "b3dfg"
-#define B3DFG_MAX_DEVS 4
-#define B3DFG_FRAMES_PER_BUFFER 3
-
-#define B3DFG_BAR_REGS	0
-#define B3DFG_REGS_LENGTH 0x10000
-
-#define B3DFG_IOC_MAGIC		0xb3 /* dfg :-) */
-#define B3DFG_IOCGFRMSZ		_IOR(B3DFG_IOC_MAGIC, 1, int)
-#define B3DFG_IOCTNUMBUFS	_IO(B3DFG_IOC_MAGIC, 2)
-#define B3DFG_IOCTTRANS		_IO(B3DFG_IOC_MAGIC, 3)
-#define B3DFG_IOCTQUEUEBUF	_IO(B3DFG_IOC_MAGIC, 4)
-#define B3DFG_IOCTPOLLBUF	_IOWR(B3DFG_IOC_MAGIC, 5, struct b3dfg_poll)
-#define B3DFG_IOCTWAITBUF	_IOWR(B3DFG_IOC_MAGIC, 6, struct b3dfg_wait)
-#define B3DFG_IOCGWANDSTAT	_IOR(B3DFG_IOC_MAGIC, 7, int)
-
-enum {
-	/* number of 4kb pages per frame */
-	B3D_REG_FRM_SIZE = 0x0,
-
-	/* bit 0: set to enable interrupts
-	 * bit 1: set to enable cable status change interrupts */
-	B3D_REG_HW_CTRL = 0x4,
-
-	/* bit 0-1 - 1-based ID of next pending frame transfer (0 = none)
-	 * bit 2 indicates the previous DMA transfer has completed
-	 * bit 3 indicates wand cable status change
-	 * bit 8:15 - counter of number of discarded triplets */
-	B3D_REG_DMA_STS = 0x8,
-
-	/* bit 0: wand status (1 = present, 0 = disconnected) */
-	B3D_REG_WAND_STS = 0xc,
-
-	/* bus address for DMA transfers. lower 2 bits must be zero because DMA
-	 * works with 32 bit word size. */
-	B3D_REG_EC220_DMA_ADDR = 0x8000,
-
-	/* bit 20:0 - number of 32 bit words to be transferred
-	 * bit 21:31 - reserved */
-	B3D_REG_EC220_TRF_SIZE = 0x8004,
-
-	/* bit 0 - error bit
-	 * bit 1 - interrupt bit (set to generate interrupt at end of transfer)
-	 * bit 2 - start bit (set to start transfer)
-	 * bit 3 - direction (0 = DMA_TO_DEVICE, 1 = DMA_FROM_DEVICE
-	 * bit 4:31 - reserved */
-	B3D_REG_EC220_DMA_STS = 0x8008,
-};
-
-enum b3dfg_buffer_state {
-	B3DFG_BUFFER_POLLED = 0,
-	B3DFG_BUFFER_PENDING,
-	B3DFG_BUFFER_POPULATED,
-};
-
-struct b3dfg_buffer {
-	unsigned char *frame[B3DFG_FRAMES_PER_BUFFER];
-	struct list_head list;
-	u8 state;
-};
-
-struct b3dfg_dev {
-
-	/* no protection needed: all finalized at initialization time */
-	struct pci_dev *pdev;
-	struct cdev chardev;
-	struct device *dev;
-	void __iomem *regs;
-	unsigned int frame_size;
-
-	/*
-	 * Protects buffer state, including buffer_queue, triplet_ready,
-	 * cur_dma_frame_idx & cur_dma_frame_addr.
-	 */
-	spinlock_t buffer_lock;
-	struct b3dfg_buffer *buffers;
-	struct list_head buffer_queue;
-
-	/* Last frame in triplet transferred (-1 if none). */
-	int cur_dma_frame_idx;
-
-	/* Current frame's address for DMA. */
-	dma_addr_t cur_dma_frame_addr;
-
-	/*
-	 * Protects cstate_tstamp.
-	 * Nests inside buffer_lock.
-	 */
-	spinlock_t cstate_lock;
-	unsigned long cstate_tstamp;
-
-	/*
-	 * Protects triplets_dropped.
-	 * Nests inside buffers_lock.
-	 */
-	spinlock_t triplets_dropped_lock;
-	unsigned int triplets_dropped;
-
-	wait_queue_head_t buffer_waitqueue;
-
-	unsigned int transmission_enabled:1;
-	unsigned int triplet_ready:1;
-};
-
-static u8 b3dfg_devices[B3DFG_MAX_DEVS];
-
-static struct class *b3dfg_class;
-static dev_t b3dfg_devt;
-
-static const struct pci_device_id b3dfg_ids[] __devinitdata = {
-	{ PCI_DEVICE(0x0b3d, 0x0001) },
-	{ },
-};
-
-MODULE_DEVICE_TABLE(pci, b3dfg_ids);
-
-/***** user-visible types *****/
-
-struct b3dfg_poll {
-	int buffer_idx;
-	unsigned int triplets_dropped;
-};
-
-struct b3dfg_wait {
-	int buffer_idx;
-	unsigned int timeout;
-	unsigned int triplets_dropped;
-};
-
-/**** register I/O ****/
-
-static u32 b3dfg_read32(struct b3dfg_dev *fgdev, u16 reg)
-{
-	return ioread32(fgdev->regs + reg);
-}
-
-static void b3dfg_write32(struct b3dfg_dev *fgdev, u16 reg, u32 value)
-{
-	iowrite32(value, fgdev->regs + reg);
-}
-
-/**** buffer management ****/
-
-/*
- * Program EC220 for transfer of a specific frame.
- * Called with buffer_lock held.
- */
-static int setup_frame_transfer(struct b3dfg_dev *fgdev,
-	struct b3dfg_buffer *buf, int frame)
-{
-	unsigned char *frm_addr;
-	dma_addr_t frm_addr_dma;
-	unsigned int frm_size = fgdev->frame_size;
-
-	frm_addr = buf->frame[frame];
-	frm_addr_dma = pci_map_single(fgdev->pdev, frm_addr,
-					  frm_size, PCI_DMA_FROMDEVICE);
-	if (pci_dma_mapping_error(fgdev->pdev, frm_addr_dma))
-		return -ENOMEM;
-
-	fgdev->cur_dma_frame_addr = frm_addr_dma;
-	fgdev->cur_dma_frame_idx = frame;
-
-	b3dfg_write32(fgdev, B3D_REG_EC220_DMA_ADDR,
-					cpu_to_le32(frm_addr_dma));
-	b3dfg_write32(fgdev, B3D_REG_EC220_TRF_SIZE,
-					cpu_to_le32(frm_size >> 2));
-	b3dfg_write32(fgdev, B3D_REG_EC220_DMA_STS, 0xf);
-
-	return 0;
-}
-
-/* Caller should hold buffer lock */
-static void dequeue_all_buffers(struct b3dfg_dev *fgdev)
-{
-	int i;
-	for (i = 0; i < b3dfg_nbuf; i++) {
-		struct b3dfg_buffer *buf = &fgdev->buffers[i];
-		buf->state = B3DFG_BUFFER_POLLED;
-		list_del_init(&buf->list);
-	}
-}
-
-/* queue a buffer to receive data */
-static int queue_buffer(struct b3dfg_dev *fgdev, int bufidx)
-{
-	struct device *dev = &fgdev->pdev->dev;
-	struct b3dfg_buffer *buf;
-	unsigned long flags;
-	int r = 0;
-
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-	if (bufidx < 0 || bufidx >= b3dfg_nbuf) {
-		dev_dbg(dev, "Invalid buffer index, %d\n", bufidx);
-		r = -ENOENT;
-		goto out;
-	}
-	buf = &fgdev->buffers[bufidx];
-
-	if (unlikely(buf->state == B3DFG_BUFFER_PENDING)) {
-		dev_dbg(dev, "buffer %d is already queued\n", bufidx);
-		r = -EINVAL;
-		goto out;
-	}
-
-	buf->state = B3DFG_BUFFER_PENDING;
-	list_add_tail(&buf->list, &fgdev->buffer_queue);
-
-	if (fgdev->transmission_enabled && fgdev->triplet_ready) {
-		dev_dbg(dev, "triplet is ready, pushing immediately\n");
-		fgdev->triplet_ready = 0;
-		r = setup_frame_transfer(fgdev, buf, 0);
-		if (r)
-			dev_err(dev, "unable to map DMA buffer\n");
-	}
-
-out:
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-	return r;
-}
-
-/* non-blocking buffer poll. returns 1 if data is present in the buffer,
- * 0 otherwise */
-static int poll_buffer(struct b3dfg_dev *fgdev, void __user *arg)
-{
-	struct device *dev = &fgdev->pdev->dev;
-	struct b3dfg_poll p;
-	struct b3dfg_buffer *buf;
-	unsigned long flags;
-	int r = 1;
-	int arg_out = 0;
-
-	if (copy_from_user(&p, arg, sizeof(p)))
-		return -EFAULT;
-
-	if (unlikely(!fgdev->transmission_enabled)) {
-		dev_dbg(dev, "cannot poll, transmission disabled\n");
-		return -EINVAL;
-	}
-
-	if (p.buffer_idx < 0 || p.buffer_idx >= b3dfg_nbuf)
-		return -ENOENT;
-
-	buf = &fgdev->buffers[p.buffer_idx];
-
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-
-	if (likely(buf->state == B3DFG_BUFFER_POPULATED)) {
-		arg_out = 1;
-		buf->state = B3DFG_BUFFER_POLLED;
-
-		/* IRQs already disabled by spin_lock_irqsave above. */
-		spin_lock(&fgdev->triplets_dropped_lock);
-		p.triplets_dropped = fgdev->triplets_dropped;
-		fgdev->triplets_dropped = 0;
-		spin_unlock(&fgdev->triplets_dropped_lock);
-	} else {
-		r = 0;
-	}
-
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-
-	if (arg_out && copy_to_user(arg, &p, sizeof(p)))
-		r = -EFAULT;
-
-	return r;
-}
-
-static unsigned long get_cstate_change(struct b3dfg_dev *fgdev)
-{
-	unsigned long flags, when;
-
-	spin_lock_irqsave(&fgdev->cstate_lock, flags);
-	when = fgdev->cstate_tstamp;
-	spin_unlock_irqrestore(&fgdev->cstate_lock, flags);
-	return when;
-}
-
-static int is_event_ready(struct b3dfg_dev *fgdev, struct b3dfg_buffer *buf,
-			  unsigned long when)
-{
-	int result;
-	unsigned long flags;
-
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-	spin_lock(&fgdev->cstate_lock);
-	result = (!fgdev->transmission_enabled ||
-		  buf->state == B3DFG_BUFFER_POPULATED ||
-		  when != fgdev->cstate_tstamp);
-	spin_unlock(&fgdev->cstate_lock);
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-
-	return result;
-}
-
-/* sleep until a specific buffer becomes populated */
-static int wait_buffer(struct b3dfg_dev *fgdev, void __user *arg)
-{
-	struct device *dev = &fgdev->pdev->dev;
-	struct b3dfg_wait w;
-	struct b3dfg_buffer *buf;
-	unsigned long flags, when;
-	int r;
-
-	if (copy_from_user(&w, arg, sizeof(w)))
-		return -EFAULT;
-
-	if (!fgdev->transmission_enabled) {
-		dev_dbg(dev, "cannot wait, transmission disabled\n");
-		return -EINVAL;
-	}
-
-	if (w.buffer_idx < 0 || w.buffer_idx >= b3dfg_nbuf)
-		return -ENOENT;
-
-	buf = &fgdev->buffers[w.buffer_idx];
-
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-
-	if (buf->state == B3DFG_BUFFER_POPULATED) {
-		r = w.timeout;
-		goto out_triplets_dropped;
-	}
-
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-
-	when = get_cstate_change(fgdev);
-	if (w.timeout > 0) {
-		r = wait_event_interruptible_timeout(fgdev->buffer_waitqueue,
-			is_event_ready(fgdev, buf, when),
-			(w.timeout * HZ) / 1000);
-
-		if (unlikely(r < 0))
-			goto out;
-
-		w.timeout = r * 1000 / HZ;
-	} else {
-		r = wait_event_interruptible(fgdev->buffer_waitqueue,
-			is_event_ready(fgdev, buf, when));
-
-		if (unlikely(r)) {
-			r = -ERESTARTSYS;
-			goto out;
-		}
-	}
-
-	/* TODO: Inform the user via field(s) in w? */
-	if (!fgdev->transmission_enabled || when != get_cstate_change(fgdev)) {
-		r = -EINVAL;
-		goto out;
-	}
-
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-
-	if (buf->state != B3DFG_BUFFER_POPULATED) {
-		r = -ETIMEDOUT;
-		goto out_unlock;
-	}
-
-	buf->state = B3DFG_BUFFER_POLLED;
-
-out_triplets_dropped:
-
-	/* IRQs already disabled by spin_lock_irqsave above. */
-	spin_lock(&fgdev->triplets_dropped_lock);
-	w.triplets_dropped = fgdev->triplets_dropped;
-	fgdev->triplets_dropped = 0;
-	spin_unlock(&fgdev->triplets_dropped_lock);
-
-out_unlock:
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-	if (copy_to_user(arg, &w, sizeof(w)))
-		r = -EFAULT;
-out:
-	return r;
-}
-
-/* mmap page fault handler */
-static int b3dfg_vma_fault(struct vm_area_struct *vma,
-	struct vm_fault *vmf)
-{
-	struct b3dfg_dev *fgdev = vma->vm_file->private_data;
-	unsigned long off = vmf->pgoff << PAGE_SHIFT;
-	unsigned int frame_size = fgdev->frame_size;
-	unsigned int buf_size = frame_size * B3DFG_FRAMES_PER_BUFFER;
-	unsigned char *addr;
-
-	/* determine which buffer the offset lies within */
-	unsigned int buf_idx = off / buf_size;
-	/* and the offset into the buffer */
-	unsigned int buf_off = off % buf_size;
-
-	/* determine which frame inside the buffer the offset lies in */
-	unsigned int frm_idx = buf_off / frame_size;
-	/* and the offset into the frame */
-	unsigned int frm_off = buf_off % frame_size;
-
-	if (unlikely(buf_idx >= b3dfg_nbuf))
-		return VM_FAULT_SIGBUS;
-
-	addr = fgdev->buffers[buf_idx].frame[frm_idx] + frm_off;
-	vm_insert_pfn(vma, (unsigned long)vmf->virtual_address,
-			  virt_to_phys(addr) >> PAGE_SHIFT);
-
-	return VM_FAULT_NOPAGE;
-}
-
-static struct vm_operations_struct b3dfg_vm_ops = {
-	.fault = b3dfg_vma_fault,
-};
-
-static int get_wand_status(struct b3dfg_dev *fgdev, int __user *arg)
-{
-	u32 wndstat = b3dfg_read32(fgdev, B3D_REG_WAND_STS);
-	dev_dbg(&fgdev->pdev->dev, "wand status %x\n", wndstat);
-	return __put_user(wndstat & 0x1, arg);
-}
-
-static int enable_transmission(struct b3dfg_dev *fgdev)
-{
-	unsigned long flags;
-	struct device *dev = &fgdev->pdev->dev;
-
-	dev_dbg(dev, "enable transmission\n");
-
-	/* check the cable is plugged in. */
-	if (!b3dfg_read32(fgdev, B3D_REG_WAND_STS)) {
-		dev_dbg(dev, "cannot start transmission without wand\n");
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-
-	/* Handle racing enable_transmission calls. */
-	if (fgdev->transmission_enabled) {
-		spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-		goto out;
-	}
-
-	spin_lock(&fgdev->triplets_dropped_lock);
-	fgdev->triplets_dropped = 0;
-	spin_unlock(&fgdev->triplets_dropped_lock);
-
-	fgdev->triplet_ready = 0;
-	fgdev->cur_dma_frame_idx = -1;
-	fgdev->transmission_enabled = 1;
-
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-
-	/* Enable DMA and cable status interrupts. */
-	b3dfg_write32(fgdev, B3D_REG_HW_CTRL, 0x03);
-
-out:
-	return 0;
-}
-
-static void disable_transmission(struct b3dfg_dev *fgdev)
-{
-	struct device *dev = &fgdev->pdev->dev;
-	unsigned long flags;
-	u32 tmp;
-
-	dev_dbg(dev, "disable transmission\n");
-
-	/* guarantee that no more interrupts will be serviced */
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-	fgdev->transmission_enabled = 0;
-
-	b3dfg_write32(fgdev, B3D_REG_HW_CTRL, 0);
-
-	/* FIXME: temporary debugging only. if the board stops transmitting,
-	 * hitting ctrl+c and seeing this message is useful for determining
-	 * the state of the board. */
-	tmp = b3dfg_read32(fgdev, B3D_REG_DMA_STS);
-	dev_dbg(dev, "DMA_STS reads %x after TX stopped\n", tmp);
-
-	dequeue_all_buffers(fgdev);
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-
-	wake_up_interruptible(&fgdev->buffer_waitqueue);
-}
-
-static int set_transmission(struct b3dfg_dev *fgdev, int enabled)
-{
-	int res = 0;
-
-	if (enabled && !fgdev->transmission_enabled)
-		res = enable_transmission(fgdev);
-	else if (!enabled && fgdev->transmission_enabled)
-		disable_transmission(fgdev);
-
-	return res;
-}
-
-/* Called in interrupt context. */
-static void handle_cstate_unplug(struct b3dfg_dev *fgdev)
-{
-	/* Disable all interrupts. */
-	b3dfg_write32(fgdev, B3D_REG_HW_CTRL, 0);
-
-	/* Stop transmission. */
-	spin_lock(&fgdev->buffer_lock);
-	fgdev->transmission_enabled = 0;
-
-	fgdev->cur_dma_frame_idx = -1;
-	fgdev->triplet_ready = 0;
-	if (fgdev->cur_dma_frame_addr) {
-		pci_unmap_single(fgdev->pdev, fgdev->cur_dma_frame_addr,
-				 fgdev->frame_size, PCI_DMA_FROMDEVICE);
-		fgdev->cur_dma_frame_addr = 0;
-	}
-	dequeue_all_buffers(fgdev);
-	spin_unlock(&fgdev->buffer_lock);
-}
-
-/* Called in interrupt context. */
-static void handle_cstate_change(struct b3dfg_dev *fgdev)
-{
-	u32 cstate = b3dfg_read32(fgdev, B3D_REG_WAND_STS);
-	unsigned long when;
-	struct device *dev = &fgdev->pdev->dev;
-
-	dev_dbg(dev, "cable state change: %u\n", cstate);
-
-	/*
-	 * When the wand is unplugged we reset our state. The hardware will
-	 * have done the same internally.
-	 *
-	 * Note we should never see a cable *plugged* event, as interrupts
-	 * should only be enabled when transmitting, which requires the cable
-	 * to be plugged. If we do see one it probably means the cable has been
-	 * unplugged and re-plugged very rapidly. Possibly because it has a
-	 * broken wire and is momentarily losing contact.
-	 *
-	 * TODO: At the moment if you plug in the cable then enable transmission
-	 * the hardware will raise a couple of spurious interrupts, so
-	 * just ignore them for now.
-	 *
-	 * Once the hardware is fixed we should complain and treat it as an
-	 * unplug. Or at least track how frequently it is happening and do
-	 * so if too many come in.
-	 */
-	if (cstate) {
-		dev_warn(dev, "ignoring unexpected plug event\n");
-		return;
-	}
-	handle_cstate_unplug(fgdev);
-
-	/*
-	 * Record cable state change timestamp & wake anyone waiting
-	 * on a cable state change. Be paranoid about ensuring events
-	 * are not missed if we somehow get two interrupts in a jiffy.
-	 */
-	spin_lock(&fgdev->cstate_lock);
-	when = jiffies_64;
-	if (when <= fgdev->cstate_tstamp)
-		when = fgdev->cstate_tstamp + 1;
-	fgdev->cstate_tstamp = when;
-	wake_up_interruptible(&fgdev->buffer_waitqueue);
-	spin_unlock(&fgdev->cstate_lock);
-}
-
-/* Called with buffer_lock held. */
-static void transfer_complete(struct b3dfg_dev *fgdev)
-{
-	struct b3dfg_buffer *buf;
-	struct device *dev = &fgdev->pdev->dev;
-
-	pci_unmap_single(fgdev->pdev, fgdev->cur_dma_frame_addr,
-			 fgdev->frame_size, PCI_DMA_FROMDEVICE);
-	fgdev->cur_dma_frame_addr = 0;
-
-	buf = list_entry(fgdev->buffer_queue.next, struct b3dfg_buffer, list);
-
-	dev_dbg(dev, "handle frame completion\n");
-	if (fgdev->cur_dma_frame_idx == B3DFG_FRAMES_PER_BUFFER - 1) {
-
-		/* last frame of that triplet completed */
-		dev_dbg(dev, "triplet completed\n");
-		buf->state = B3DFG_BUFFER_POPULATED;
-		list_del_init(&buf->list);
-		wake_up_interruptible(&fgdev->buffer_waitqueue);
-	}
-}
-
-/*
- * Called with buffer_lock held.
- *
- * Note that idx is the (1-based) *next* frame to be transferred, while
- * cur_dma_frame_idx is the (0-based) *last* frame to have been transferred (or
- * -1 if none). Thus there should be a difference of 2 between them.
- */
-static bool setup_next_frame_transfer(struct b3dfg_dev *fgdev, int idx)
-{
-	struct b3dfg_buffer *buf;
-	struct device *dev = &fgdev->pdev->dev;
-	bool need_ack = 1;
-
-	dev_dbg(dev, "program DMA transfer for next frame: %d\n", idx);
-
-	buf = list_entry(fgdev->buffer_queue.next, struct b3dfg_buffer, list);
-	if (idx == fgdev->cur_dma_frame_idx + 2) {
-		if (setup_frame_transfer(fgdev, buf, idx - 1))
-			dev_err(dev, "unable to map DMA buffer\n");
-		need_ack = 0;
-	} else {
-		dev_err(dev, "frame mismatch, got %d, expected %d\n",
-			idx, fgdev->cur_dma_frame_idx + 2);
-
-		/* FIXME: handle dropped triplets here */
-	}
-
-	return need_ack;
-}
-
-static irqreturn_t b3dfg_intr(int irq, void *dev_id)
-{
-	struct b3dfg_dev *fgdev = dev_id;
-	struct device *dev = &fgdev->pdev->dev;
-	u32 sts;
-	u8 dropped;
-	bool need_ack = 1;
-	irqreturn_t res = IRQ_HANDLED;
-
-	sts = b3dfg_read32(fgdev, B3D_REG_DMA_STS);
-	if (unlikely(sts == 0)) {
-		dev_warn(dev, "ignore interrupt, DMA status is 0\n");
-		res = IRQ_NONE;
-		goto out;
-	}
-
-	if (unlikely(!fgdev->transmission_enabled)) {
-		dev_warn(dev, "ignore interrupt, TX disabled\n");
-		res = IRQ_HANDLED;
-		goto out;
-	}
-
-	/* Handle dropped frames, as reported by the hardware. */
-	dropped = (sts >> 8) & 0xff;
-	dev_dbg(dev, "intr: DMA_STS=%08x (drop=%d comp=%d next=%d)\n",
-		sts, dropped, !!(sts & 0x4), sts & 0x3);
-	if (unlikely(dropped > 0)) {
-		spin_lock(&fgdev->triplets_dropped_lock);
-		fgdev->triplets_dropped += dropped;
-		spin_unlock(&fgdev->triplets_dropped_lock);
-	}
-
-	/* Handle a cable state change (i.e. the wand being unplugged). */
-	if (sts & 0x08) {
-		handle_cstate_change(fgdev);
-		goto out;
-	}
-
-	spin_lock(&fgdev->buffer_lock);
-	if (unlikely(list_empty(&fgdev->buffer_queue))) {
-
-		/* FIXME need more sanity checking here */
-		dev_info(dev, "buffer not ready for next transfer\n");
-		fgdev->triplet_ready = 1;
-		goto out_unlock;
-	}
-
-	/* Has a frame transfer been completed? */
-	if (sts & 0x4) {
-		u32 dma_status = b3dfg_read32(fgdev, B3D_REG_EC220_DMA_STS);
-
-		/* Check for DMA errors reported by the hardware. */
-		if (unlikely(dma_status & 0x1)) {
-			dev_err(dev, "EC220 error: %08x\n", dma_status);
-
-			/* FIXME flesh out error handling */
-			goto out_unlock;
-		}
-
-		/* Sanity check, we should have a frame index at this point. */
-		if (unlikely(fgdev->cur_dma_frame_idx == -1)) {
-			dev_err(dev, "completed but no last idx?\n");
-
-			/* FIXME flesh out error handling */
-			goto out_unlock;
-		}
-
-		transfer_complete(fgdev);
-	}
-
-	/* Is there another frame transfer pending? */
-	if (sts & 0x3)
-		need_ack = setup_next_frame_transfer(fgdev, sts & 0x3);
-	else
-		fgdev->cur_dma_frame_idx = -1;
-
-out_unlock:
-	spin_unlock(&fgdev->buffer_lock);
-out:
-	if (need_ack) {
-		dev_dbg(dev, "acknowledging interrupt\n");
-		b3dfg_write32(fgdev, B3D_REG_EC220_DMA_STS, 0x0b);
-	}
-	return res;
-}
-
-static int b3dfg_open(struct inode *inode, struct file *filp)
-{
-	struct b3dfg_dev *fgdev =
-		container_of(inode->i_cdev, struct b3dfg_dev, chardev);
-
-	dev_dbg(&fgdev->pdev->dev, "open\n");
-	filp->private_data = fgdev;
-	return 0;
-}
-
-static int b3dfg_release(struct inode *inode, struct file *filp)
-{
-	struct b3dfg_dev *fgdev = filp->private_data;
-	dev_dbg(&fgdev->pdev->dev, "release\n");
-	disable_transmission(fgdev);
-	return 0;
-}
-
-static long b3dfg_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	struct b3dfg_dev *fgdev = filp->private_data;
-
-	switch (cmd) {
-	case B3DFG_IOCGFRMSZ:
-		return __put_user(fgdev->frame_size, (int __user *) arg);
-	case B3DFG_IOCGWANDSTAT:
-		return get_wand_status(fgdev, (int __user *) arg);
-	case B3DFG_IOCTTRANS:
-		return set_transmission(fgdev, (int) arg);
-	case B3DFG_IOCTQUEUEBUF:
-		return queue_buffer(fgdev, (int) arg);
-	case B3DFG_IOCTPOLLBUF:
-		return poll_buffer(fgdev, (void __user *) arg);
-	case B3DFG_IOCTWAITBUF:
-		return wait_buffer(fgdev, (void __user *) arg);
-	default:
-		dev_dbg(&fgdev->pdev->dev, "unrecognised ioctl %x\n", cmd);
-		return -EINVAL;
-	}
-}
-
-static unsigned int b3dfg_poll(struct file *filp, poll_table *poll_table)
-{
-	struct b3dfg_dev *fgdev = filp->private_data;
-	unsigned long flags, when;
-	int i;
-	int r = 0;
-
-	when = get_cstate_change(fgdev);
-	poll_wait(filp, &fgdev->buffer_waitqueue, poll_table);
-
-	spin_lock_irqsave(&fgdev->buffer_lock, flags);
-	for (i = 0; i < b3dfg_nbuf; i++) {
-		if (fgdev->buffers[i].state == B3DFG_BUFFER_POPULATED) {
-			r = POLLIN | POLLRDNORM;
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&fgdev->buffer_lock, flags);
-
-	/* TODO: Confirm this is how we want to communicate the change. */
-	if (!fgdev->transmission_enabled || when != get_cstate_change(fgdev))
-		r = POLLERR;
-
-	return r;
-}
-
-static int b3dfg_mmap(struct file *filp, struct vm_area_struct *vma)
-{
-	struct b3dfg_dev *fgdev = filp->private_data;
-	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-	unsigned long vsize = vma->vm_end - vma->vm_start;
-	unsigned long bufdatalen = b3dfg_nbuf * fgdev->frame_size * 3;
-	unsigned long psize = bufdatalen - offset;
-	int r = 0;
-
-	if (vsize <= psize) {
-		vma->vm_flags |= VM_IO | VM_RESERVED | VM_CAN_NONLINEAR |
-				 VM_PFNMAP;
-		vma->vm_ops = &b3dfg_vm_ops;
-	} else {
-		r = -EINVAL;
-	}
-
-	return r;
-}
-
-static struct file_operations b3dfg_fops = {
-	.owner = THIS_MODULE,
-	.open = b3dfg_open,
-	.release = b3dfg_release,
-	.unlocked_ioctl = b3dfg_ioctl,
-	.poll = b3dfg_poll,
-	.mmap = b3dfg_mmap,
-};
-
-static void free_all_frame_buffers(struct b3dfg_dev *fgdev)
-{
-	int i, j;
-	for (i = 0; i < b3dfg_nbuf; i++)
-		for (j = 0; j < B3DFG_FRAMES_PER_BUFFER; j++)
-			kfree(fgdev->buffers[i].frame[j]);
-	kfree(fgdev->buffers);
-}
-
-/* initialize device and any data structures. called before any interrupts
- * are enabled. */
-static int b3dfg_init_dev(struct b3dfg_dev *fgdev)
-{
-	int i, j;
-	u32 frm_size = b3dfg_read32(fgdev, B3D_REG_FRM_SIZE);
-
-	/* Disable interrupts. In abnormal circumstances (e.g. after a crash)
-	 * the board may still be transmitting from the previous session. If we
-	 * ensure that interrupts are disabled before we later enable them, we
-	 * are sure to capture a triplet from the start, rather than starting
-	 * from frame 2 or 3. Disabling interrupts causes the FG to throw away
-	 * all buffered data and stop buffering more until interrupts are
-	 * enabled again.
-	 */
-	b3dfg_write32(fgdev, B3D_REG_HW_CTRL, 0);
-
-	fgdev->frame_size = frm_size * 4096;
-	fgdev->buffers = kzalloc(sizeof(struct b3dfg_buffer) * b3dfg_nbuf,
-				 GFP_KERNEL);
-	if (!fgdev->buffers)
-		goto err_no_buf;
-	for (i = 0; i < b3dfg_nbuf; i++) {
-		struct b3dfg_buffer *buf = &fgdev->buffers[i];
-		for (j = 0; j < B3DFG_FRAMES_PER_BUFFER; j++) {
-			buf->frame[j] = kmalloc(fgdev->frame_size, GFP_KERNEL);
-			if (!buf->frame[j])
-				goto err_no_mem;
-		}
-		INIT_LIST_HEAD(&buf->list);
-	}
-
-	INIT_LIST_HEAD(&fgdev->buffer_queue);
-	init_waitqueue_head(&fgdev->buffer_waitqueue);
-	spin_lock_init(&fgdev->buffer_lock);
-	spin_lock_init(&fgdev->cstate_lock);
-	spin_lock_init(&fgdev->triplets_dropped_lock);
-	return 0;
-
-err_no_mem:
-	free_all_frame_buffers(fgdev);
-err_no_buf:
-	return -ENOMEM;
-}
-
-/* find next free minor number, returns -1 if none are availabile */
-static int get_free_minor(void)
-{
-	int i;
-	for (i = 0; i < B3DFG_MAX_DEVS; i++) {
-		if (b3dfg_devices[i] == 0)
-			return i;
-	}
-	return -1;
-}
-
-static int __devinit b3dfg_probe(struct pci_dev *pdev,
-	const struct pci_device_id *id)
-{
-	struct b3dfg_dev *fgdev = kzalloc(sizeof(*fgdev), GFP_KERNEL);
-	int r = 0;
-	int minor = get_free_minor();
-	dev_t devno = MKDEV(MAJOR(b3dfg_devt), minor);
-	unsigned long res_len;
-	resource_size_t res_base;
-
-	if (fgdev == NULL)
-		return -ENOMEM;
-
-	if (minor < 0) {
-		dev_err(&pdev->dev, "too many devices found!\n");
-		r = -EIO;
-		goto err_free;
-	}
-
-	b3dfg_devices[minor] = 1;
-	dev_info(&pdev->dev, "probe device with IRQ %d\n", pdev->irq);
-
-	cdev_init(&fgdev->chardev, &b3dfg_fops);
-	fgdev->chardev.owner = THIS_MODULE;
-
-	r = cdev_add(&fgdev->chardev, devno, 1);
-	if (r) {
-		dev_err(&pdev->dev, "cannot add char device\n");
-		goto err_release_minor;
-	}
-
-	fgdev->dev = device_create(
-		b3dfg_class,
-		&pdev->dev,
-		devno,
-		dev_get_drvdata(&pdev->dev),
-		DRIVER_NAME "%d", minor);
-
-	if (IS_ERR(fgdev->dev)) {
-		dev_err(&pdev->dev, "cannot create device\n");
-		r = PTR_ERR(fgdev->dev);
-		goto err_del_cdev;
-	}
-
-	r = pci_enable_device(pdev);
-	if (r) {
-		dev_err(&pdev->dev, "cannot enable PCI device\n");
-		goto err_dev_unreg;
-	}
-
-	res_len = pci_resource_len(pdev, B3DFG_BAR_REGS);
-	if (res_len != B3DFG_REGS_LENGTH) {
-		dev_err(&pdev->dev, "invalid register resource size\n");
-		r = -EIO;
-		goto err_disable;
-	}
-
-	if (pci_resource_flags(pdev, B3DFG_BAR_REGS)
-				!= (IORESOURCE_MEM | IORESOURCE_SIZEALIGN)) {
-		dev_err(&pdev->dev, "invalid resource flags\n");
-		r = -EIO;
-		goto err_disable;
-	}
-	r = pci_request_regions(pdev, DRIVER_NAME);
-	if (r) {
-		dev_err(&pdev->dev, "cannot obtain PCI resources\n");
-		goto err_disable;
-	}
-
-	pci_set_master(pdev);
-
-	r = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-	if (r) {
-		dev_err(&pdev->dev, "no usable DMA configuration\n");
-		goto err_free_res;
-	}
-
-	res_base = pci_resource_start(pdev, B3DFG_BAR_REGS);
-	fgdev->regs = ioremap_nocache(res_base, res_len);
-	if (!fgdev->regs) {
-		dev_err(&pdev->dev, "regs ioremap failed\n");
-		r = -EIO;
-		goto err_free_res;
-	}
-
-	fgdev->pdev = pdev;
-	pci_set_drvdata(pdev, fgdev);
-	r = b3dfg_init_dev(fgdev);
-	if (r < 0) {
-		dev_err(&pdev->dev, "failed to initalize device\n");
-		goto err_unmap;
-	}
-
-	r = request_irq(pdev->irq, b3dfg_intr, IRQF_SHARED, DRIVER_NAME, fgdev);
-	if (r) {
-		dev_err(&pdev->dev, "couldn't request irq %d\n", pdev->irq);
-		goto err_free_bufs;
-	}
-
-	return 0;
-
-err_free_bufs:
-	free_all_frame_buffers(fgdev);
-err_unmap:
-	iounmap(fgdev->regs);
-err_free_res:
-	pci_release_regions(pdev);
-err_disable:
-	pci_disable_device(pdev);
-err_dev_unreg:
-	device_destroy(b3dfg_class, devno);
-err_del_cdev:
-	cdev_del(&fgdev->chardev);
-err_release_minor:
-	b3dfg_devices[minor] = 0;
-err_free:
-	kfree(fgdev);
-	return r;
-}
-
-static void __devexit b3dfg_remove(struct pci_dev *pdev)
-{
-	struct b3dfg_dev *fgdev = pci_get_drvdata(pdev);
-	unsigned int minor = MINOR(fgdev->chardev.dev);
-
-	dev_dbg(&pdev->dev, "remove\n");
-
-	free_irq(pdev->irq, fgdev);
-	iounmap(fgdev->regs);
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-	device_destroy(b3dfg_class, MKDEV(MAJOR(b3dfg_devt), minor));
-	cdev_del(&fgdev->chardev);
-	free_all_frame_buffers(fgdev);
-	kfree(fgdev);
-	b3dfg_devices[minor] = 0;
-}
-
-static struct pci_driver b3dfg_driver = {
-	.name = DRIVER_NAME,
-	.id_table = b3dfg_ids,
-	.probe = b3dfg_probe,
-	.remove = __devexit_p(b3dfg_remove),
-};
-
-static int __init b3dfg_module_init(void)
-{
-	int r;
-
-	if (b3dfg_nbuf < 2) {
-		printk(KERN_ERR DRIVER_NAME
-			   ": buffer_count is out of range (must be >= 2)");
-		return -EINVAL;
-	}
-
-	printk(KERN_INFO DRIVER_NAME ": loaded\n");
-
-	b3dfg_class = class_create(THIS_MODULE, DRIVER_NAME);
-	if (IS_ERR(b3dfg_class))
-		return PTR_ERR(b3dfg_class);
-
-	r = alloc_chrdev_region(&b3dfg_devt, 0, B3DFG_MAX_DEVS, DRIVER_NAME);
-	if (r)
-		goto err1;
-
-	r = pci_register_driver(&b3dfg_driver);
-	if (r)
-		goto err2;
-
-	return r;
-
-err2:
-	unregister_chrdev_region(b3dfg_devt, B3DFG_MAX_DEVS);
-err1:
-	class_destroy(b3dfg_class);
-	return r;
-}
-
-static void __exit b3dfg_module_exit(void)
-{
-	printk(KERN_INFO DRIVER_NAME ": unloaded\n");
-	pci_unregister_driver(&b3dfg_driver);
-	unregister_chrdev_region(b3dfg_devt, B3DFG_MAX_DEVS);
-	class_destroy(b3dfg_class);
-}
-
-module_init(b3dfg_module_init);
-module_exit(b3dfg_module_exit);

drivers/staging/batman-adv/Kconfig

@@ -4,7 +4,7 @@
 
 config BATMAN_ADV
 	tristate "B.A.T.M.A.N. Advanced Meshing Protocol"
-	depends on PROC_FS && PACKET
+	depends on PROC_FS && NET
         default n
 	---help---
 
@@ -14,10 +14,10 @@ config BATMAN_ADV
         http://www.open-mesh.org/ for more information and user space
         tools.
 
-config BATMAN_DEBUG
+config BATMAN_ADV_DEBUG
 	bool "B.A.T.M.A.N. debugging"
 	depends on BATMAN_ADV != n
-	help
+	---help---
 
 	  This is an option for use by developers; most people should
 	  say N here. This enables compilation of support for

drivers/staging/batman-adv/Makefile

@@ -19,4 +19,4 @@
 #
 
 obj-m += batman-adv.o
-batman-adv-objs := main.o proc.o send.o routing.o soft-interface.o device.o translation-table.o bitarray.o hash.o ring_buffer.o vis.o hard-interface.o aggregation.o log.o
+batman-adv-objs := main.o proc.o send.o routing.o soft-interface.o device.o translation-table.o bitarray.o hash.o ring_buffer.o vis.o hard-interface.o aggregation.o originator.o

drivers/staging/batman-adv/README

@@ -1,4 +1,4 @@
-[state: 07-11-2009]
+[state: 06-01-2010]
 
 BATMAN-ADV
 ----------
@@ -15,19 +15,6 @@ above B.A.T.M.A.N. Advanced, prominent examples are: IPv4, IPv6, DHCP, IPX.
 This is batman-advanced implemented as Linux kernel driver. It does not depend
 on any network (other) driver, and can be used on wifi as well as ethernet,
 vpn, etc ... (anything with ethernet-style layer 2).
-It compiles against and should work with Linux 2.6.20 - 2.6.31. Supporting older
-versions is not planned, but it's probably easy to backport it. If you work on a
-backport, feel free to contact us.  :-)
-
-COMPILE
--------
-To compile against your currently installed kernel, just type:
-
-# make
-
-if you want to compile against some other kernel, use:
-
-# make KERNELPATH=/path/to/kernel
 
 USAGE
 -----
@@ -73,16 +60,9 @@ When configured as server, you can get a topology snapshot of your mesh:
 
 # cat /proc/net/batman-adv/vis
 
-This output format is a graphviz formatted text file which can be
-processed with graphviz-tools like dot.
-The labels are similar/compatible to the ETX metric, 1.0 means perfect
-connection (100%), 2.0 means 50%, 3.0 means 33% and so on.
-
-Alternatively, a JSON output format is available. The format can be set
-using by writing either "dot_draw" or "json" into the vis_format file.
-"dot_draw" is selected by default.
-
-echo "json" > /proc/net/batman-adv/vis_format
+The output is in a generic raw format. Use the batctl tool (See below)
+to convert this to other formats more suitable for graphing, eg
+graphviz dot, or JSON data-interchange format.
 
 In very mobile scenarios, you might want to adjust the originator
 interval to a lower value. This will make the mesh more responsive to
@@ -96,15 +76,59 @@ To deactivate batman, do:
 
 # echo "" > /proc/net/batman-adv/interfaces
 
+LOGGING/DEBUGGING
+-----------------
+
+All error messages, warnings and information messages are sent to the
+kernel log. Depending on your operating system distribution this can be
+read in one of a number of ways. Try using the commands: dmesg,
+logread, or looking in the files /var/log/kern.log or
+/var/log/syslog. All batman-adv messages are prefixed with
+"batman-adv:" So to see just these messages try
+
+dmesg | grep batman-adv
+
+When investigating problems with your mesh network it is sometimes
+necessary to see more detail debug messages. This must be enabled when
+compiling the batman-adv module. Use "make menuconfig" and enable the
+option "B.A.T.M.A.N. debugging".
+
+The additional debug output is by default disabled. It can be enabled
+either at kernel module load time or during run time. To enable debug
+output at module load time, add the module parameter debug=<value>.
+<value> can take one of four values.
+
+0 - All debug output disabled
+1 - Enable messages related to routing / flooding / broadcasting
+2 - Enable route or hna added / changed / deleted
+3 - Enable all messages
+
+e.g.
+
+modprobe batman-adv debug=2
+
+will load the module and enable debug messages for when routes or HNAs
+change.
+
+The debug output can also be changed at runtime using the file
+/sys/module/batman-adv/parameters/debug. e.g.
+
+echo 2 > /sys/module/batman-adv/parameters/debug
+
+enables debug messages for when routes or HNAs
+
+The debug output is sent to the kernel logs. So try dmesg, logread etc
+to see the debug messages.
+
 BATCTL
 ------
 
-B.A.T.M.A.N.  advanced  operates on layer 2 and thus all hosts partici-
-pating in the virtual switch are completely transparent for all  proto-
-cols above layer 2. Therefore the common diagnosis tools do not work as
-expected. To overcome these problems batctl was created. At the  moment
-the  batctl contains ping, traceroute, tcpdump and interfaces to the
-kernel module settings.
+B.A.T.M.A.N.  advanced operates on layer 2 and thus all hosts
+participating in the virtual switch are completely transparent for all
+protocols above layer 2. Therefore the common diagnosis tools do not
+work as expected. To overcome these problems batctl was created. At
+the moment the batctl contains ping, traceroute, tcpdump and
+interfaces to the kernel module settings.
 
 For more information, please see the manpage (man batctl).
 

drivers/staging/batman-adv/TODO

@@ -17,30 +17,6 @@
 -> transtable_global (read-only) [outputs the global translation table]
 -> transtable_local (read-only) [outputs the local translation table]
 
-=> vis "raw" data output
-* the raw format shall replace dot draw / json to offer a neutral that can
-* be converted
-* the format (comma seperated entries):
--> "mac" -> mac address of an originator (each line begins with it)
--> "TQ mac value" -> src mac's link quality towards mac address
--> "HNA mac" -> HNA announced by source mac
--> "PRIMARY" -> this is a primary interface
--> "SEC mac" -> secondary mac address of source (requires preceeding
--> PRIMARY)
-
-=> logging
-* the log level LOG_TYPE_CRIT, LOG_TYPE_WARN & LOG_TYPE_NOTICE will be
-* unified to use printk
-* LOG_TYPE_BATMAN & LOG_TYPE_ROUTES will also use printk but only after the
-* internal debug level has been raised
-* the internal debug level can be modified using a module parameter (debug)
-* or at run time via /sys/module/batman-adv/parameters/debug
-* make use of printk %pM support instead of converting mac addresses
-* manually
-
-=> strip out all backward compatibility support to older kernels
-   (only found in compat.h)
-
 => fix checkpatch.pl errors
 
 Please send all patches to:

drivers/staging/batman-adv/aggregation.c

@@ -96,6 +96,7 @@ static void new_aggregated_packet(unsigned char *packet_buff,
 			   int own_packet)
 {
 	struct forw_packet *forw_packet_aggr;
+	unsigned long flags;
 
 	forw_packet_aggr = kmalloc(sizeof(struct forw_packet), GFP_ATOMIC);
 	if (!forw_packet_aggr)
@@ -115,6 +116,7 @@ static void new_aggregated_packet(unsigned char *packet_buff,
 	       packet_buff,
 	       forw_packet_aggr->packet_len);
 
+	forw_packet_aggr->skb = NULL;
 	forw_packet_aggr->own = own_packet;
 	forw_packet_aggr->if_incoming = if_incoming;
 	forw_packet_aggr->num_packets = 0;
@@ -126,9 +128,9 @@ static void new_aggregated_packet(unsigned char *packet_buff,
 		forw_packet_aggr->direct_link_flags |= 1;
 
 	/* add new packet to packet list */
-	spin_lock(&forw_bat_list_lock);
+	spin_lock_irqsave(&forw_bat_list_lock, flags);
 	hlist_add_head(&forw_packet_aggr->list, &forw_bat_list);
-	spin_unlock(&forw_bat_list_lock);
+	spin_unlock_irqrestore(&forw_bat_list_lock, flags);
 
 	/* start timer for this packet */
 	INIT_DELAYED_WORK(&forw_packet_aggr->delayed_work,
@@ -168,9 +170,10 @@ void add_bat_packet_to_list(unsigned char *packet_buff, int packet_len,
 	struct batman_packet *batman_packet =
 		(struct batman_packet *)packet_buff;
 	bool direct_link = batman_packet->flags & DIRECTLINK ? 1 : 0;
+	unsigned long flags;
 
 	/* find position for the packet in the forward queue */
-	spin_lock(&forw_bat_list_lock);
+	spin_lock_irqsave(&forw_bat_list_lock, flags);
 	/* own packets are not to be aggregated */
 	if ((atomic_read(&aggregation_enabled)) && (!own_packet)) {
 		hlist_for_each_entry(forw_packet_pos, tmp_node, &forw_bat_list,
@@ -191,7 +194,7 @@ void add_bat_packet_to_list(unsigned char *packet_buff, int packet_len,
 	 * suitable aggregation packet found */
 	if (forw_packet_aggr == NULL) {
 		/* the following section can run without the lock */
-		spin_unlock(&forw_bat_list_lock);
+		spin_unlock_irqrestore(&forw_bat_list_lock, flags);
 		new_aggregated_packet(packet_buff, packet_len,
 				      send_time, direct_link,
 				      if_incoming, own_packet);
@@ -199,7 +202,7 @@ void add_bat_packet_to_list(unsigned char *packet_buff, int packet_len,
 		aggregate(forw_packet_aggr,
 			  packet_buff, packet_len,
 			  direct_link);
-		spin_unlock(&forw_bat_list_lock);
+		spin_unlock_irqrestore(&forw_bat_list_lock, flags);
 	}
 }
 

drivers/staging/batman-adv/bitarray.c

@@ -21,7 +21,6 @@
 
 #include "main.h"
 #include "bitarray.h"
-#include "log.h"
 
 /* returns true if the corresponding bit in the given seq_bits indicates true
  * and curr_seqno is within range of last_seqno */
@@ -80,8 +79,8 @@ void bit_shift(TYPE_OF_WORD *seq_bits, int32_t n)
 		 * from.
 		 *
 		 * left is high, right is low: FEDC BA98 7654 3210
-		 *	                                  ^^ ^^
-		 *                             vvvv
+		 *					  ^^ ^^
+		 *			       vvvv
 		 * ^^^^ = from, vvvvv =to, we'd have word_num==1 and
 		 * word_offset==WORD_BIT_SIZE/2 ????? in this example.
 		 * (=24 bits)
@@ -133,13 +132,13 @@ char bit_get_packet(TYPE_OF_WORD *seq_bits, int16_t seq_num_diff,
 	    (seq_num_diff < -TQ_LOCAL_WINDOW_SIZE)) {
 
 		if (seq_num_diff > TQ_LOCAL_WINDOW_SIZE)
-			debug_log(LOG_TYPE_BATMAN,
-				  "We missed a lot of packets (%i) !\n",
-				  seq_num_diff-1);
+			bat_dbg(DBG_BATMAN,
+				"We missed a lot of packets (%i) !\n",
+				seq_num_diff-1);
 
 		if (-seq_num_diff > TQ_LOCAL_WINDOW_SIZE)
-			debug_log(LOG_TYPE_BATMAN,
-				  "Other host probably restarted !\n");
+			bat_dbg(DBG_BATMAN,
+				"Other host probably restarted !\n");
 
 		for (i = 0; i < NUM_WORDS; i++)
 			seq_bits[i] = 0;

drivers/staging/batman-adv/compat.h

@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2007-2009 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner, Simon Wunderlich
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- *
- * This file contains macros for maintaining compatibility with older versions
- * of the Linux kernel.
- */
-
-#include <linux/version.h>	/* LINUX_VERSION_CODE */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 22)
-
-#define skb_set_network_header(_skb, _offset) \
-	do { (_skb)->nh.raw = (_skb)->data + (_offset); } while (0)
-
-#define skb_reset_mac_header(_skb) \
-	do { (_skb)->mac.raw = (_skb)->data; } while (0)
-
-#define list_first_entry(ptr, type, member) \
-	list_entry((ptr)->next, type, member)
-
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 22) */
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)
-
-#define device_create(_cls, _parent, _devt, _device, _fmt) \
-	class_device_create(_cls, _parent, _devt, _device, _fmt)
-
-#define device_destroy(_cls, _device) \
-	class_device_destroy(_cls, _device)
-
-#else
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27)
-
-#define device_create(_cls, _parent, _devt, _device, _fmt) \
-	device_create_drvdata(_cls, _parent, _devt, _device, _fmt)
-
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27) */
-
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 23)
-
-#define cancel_delayed_work_sync(wq) cancel_rearming_delayed_work(wq)
-
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 23) */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)
-#define strict_strtoul(cp, base, res) \
-	({ \
-	int ret = 0; \
-	char *endp; \
-	*res = simple_strtoul(cp, &endp, base); \
-	if (cp == endp) \
-		ret = -EINVAL; \
-	ret; \
-})
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25) */

drivers/staging/batman-adv/device.c

@@ -19,14 +19,13 @@
  *
  */
 
+#include <linux/device.h>
 #include "main.h"
 #include "device.h"
-#include "log.h"
 #include "send.h"
 #include "types.h"
 #include "hash.h"
-
-#include "compat.h"
+#include "hard-interface.h"
 
 static struct class *batman_class;
 
@@ -60,7 +59,7 @@ int bat_device_setup(void)
 	/* register our device - kernel assigns a free major number */
 	tmp_major = register_chrdev(0, DRIVER_DEVICE, &fops);
 	if (tmp_major < 0) {
-		debug_log(LOG_TYPE_WARN, "Registering the character device failed with %d\n",
+		printk(KERN_ERR "batman-adv:Registering the character device failed with %d\n",
 			  tmp_major);
 		return 0;
 	}
@@ -68,7 +67,7 @@ int bat_device_setup(void)
 	batman_class = class_create(THIS_MODULE, "batman-adv");
 
 	if (IS_ERR(batman_class)) {
-		debug_log(LOG_TYPE_WARN, "Could not register class 'batman-adv' \n");
+		printk(KERN_ERR "batman-adv:Could not register class 'batman-adv' \n");
 		return 0;
 	}
 
@@ -111,7 +110,7 @@ int bat_device_open(struct inode *inode, struct file *file)
 	}
 
 	if (device_client_hash[i] != device_client) {
-		debug_log(LOG_TYPE_WARN, "Error - can't add another packet client: maximum number of clients reached \n");
+		printk(KERN_ERR "batman-adv:Error - can't add another packet client: maximum number of clients reached \n");
 		kfree(device_client);
 		return -EXFULL;
 	}
@@ -119,7 +118,7 @@ int bat_device_open(struct inode *inode, struct file *file)
 	INIT_LIST_HEAD(&device_client->queue_list);
 	device_client->queue_len = 0;
 	device_client->index = i;
-	device_client->lock = __SPIN_LOCK_UNLOCKED(device_client->lock);
+	spin_lock_init(&device_client->lock);
 	init_waitqueue_head(&device_client->queue_wait);
 
 	file->private_data = device_client;
@@ -134,8 +133,9 @@ int bat_device_release(struct inode *inode, struct file *file)
 		(struct device_client *)file->private_data;
 	struct device_packet *device_packet;
 	struct list_head *list_pos, *list_pos_tmp;
+	unsigned long flags;
 
-	spin_lock(&device_client->lock);
+	spin_lock_irqsave(&device_client->lock, flags);
 
 	/* for all packets in the queue ... */
 	list_for_each_safe(list_pos, list_pos_tmp, &device_client->queue_list) {
@@ -147,7 +147,7 @@ int bat_device_release(struct inode *inode, struct file *file)
 	}
 
 	device_client_hash[device_client->index] = NULL;
-	spin_unlock(&device_client->lock);
+	spin_unlock_irqrestore(&device_client->lock, flags);
 
 	kfree(device_client);
 	dec_module_count();
@@ -162,6 +162,7 @@ ssize_t bat_device_read(struct file *file, char __user *buf, size_t count,
 		(struct device_client *)file->private_data;
 	struct device_packet *device_packet;
 	int error;
+	unsigned long flags;
 
 	if ((file->f_flags & O_NONBLOCK) && (device_client->queue_len == 0))
 		return -EAGAIN;
@@ -178,14 +179,14 @@ ssize_t bat_device_read(struct file *file, char __user *buf, size_t count,
 	if (error)
 		return error;
 
-	spin_lock(&device_client->lock);
+	spin_lock_irqsave(&device_client->lock, flags);
 
 	device_packet = list_first_entry(&device_client->queue_list,
 					 struct device_packet, list);
 	list_del(&device_packet->list);
 	device_client->queue_len--;
 
-	spin_unlock(&device_client->lock);
+	spin_unlock_irqrestore(&device_client->lock, flags);
 
 	error = __copy_to_user(buf, &device_packet->icmp_packet,
 			       sizeof(struct icmp_packet));
@@ -206,9 +207,11 @@ ssize_t bat_device_write(struct file *file, const char __user *buff,
 	struct icmp_packet icmp_packet;
 	struct orig_node *orig_node;
 	struct batman_if *batman_if;
+	uint8_t dstaddr[ETH_ALEN];
+	unsigned long flags;
 
 	if (len < sizeof(struct icmp_packet)) {
-		debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from char device: invalid packet size\n");
+		bat_dbg(DBG_BATMAN, "batman-adv:Error - can't send packet from char device: invalid packet size\n");
 		return -EINVAL;
 	}
 
@@ -219,12 +222,12 @@ ssize_t bat_device_write(struct file *file, const char __user *buff,
 		return -EFAULT;
 
 	if (icmp_packet.packet_type != BAT_ICMP) {
-		debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from char device: got bogus packet type (expected: BAT_ICMP)\n");
+		bat_dbg(DBG_BATMAN, "batman-adv:Error - can't send packet from char device: got bogus packet type (expected: BAT_ICMP)\n");
 		return -EINVAL;
 	}
 
 	if (icmp_packet.msg_type != ECHO_REQUEST) {
-		debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from char device: got bogus message type (expected: ECHO_REQUEST)\n");
+		bat_dbg(DBG_BATMAN, "batman-adv:Error - can't send packet from char device: got bogus message type (expected: ECHO_REQUEST)\n");
 		return -EINVAL;
 	}
 
@@ -240,7 +243,7 @@ ssize_t bat_device_write(struct file *file, const char __user *buff,
 	if (atomic_read(&module_state) != MODULE_ACTIVE)
 		goto dst_unreach;
 
-	spin_lock(&orig_hash_lock);
+	spin_lock_irqsave(&orig_hash_lock, flags);
 	orig_node = ((struct orig_node *)hash_find(orig_hash, icmp_packet.dst));
 
 	if (!orig_node)
@@ -250,9 +253,15 @@ ssize_t bat_device_write(struct file *file, const char __user *buff,
 		goto unlock;
 
 	batman_if = orig_node->batman_if;
+	memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
+
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 
 	if (!batman_if)
-		goto unlock;
+		goto dst_unreach;
+
+	if (batman_if->if_active != IF_ACTIVE)
+		goto dst_unreach;
 
 	memcpy(icmp_packet.orig,
 	       batman_if->net_dev->dev_addr,
@@ -260,13 +269,12 @@ ssize_t bat_device_write(struct file *file, const char __user *buff,
 
 	send_raw_packet((unsigned char *)&icmp_packet,
 			sizeof(struct icmp_packet),
-			batman_if, orig_node->router->addr);
+			batman_if, dstaddr);
 
-	spin_unlock(&orig_hash_lock);
 	goto out;
 
 unlock:
-	spin_unlock(&orig_hash_lock);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 dst_unreach:
 	icmp_packet.msg_type = DESTINATION_UNREACHABLE;
 	bat_device_add_packet(device_client, &icmp_packet);
@@ -291,6 +299,7 @@ void bat_device_add_packet(struct device_client *device_client,
 			   struct icmp_packet *icmp_packet)
 {
 	struct device_packet *device_packet;
+	unsigned long flags;
 
 	device_packet = kmalloc(sizeof(struct device_packet), GFP_KERNEL);
 
@@ -301,12 +310,12 @@ void bat_device_add_packet(struct device_client *device_client,
 	memcpy(&device_packet->icmp_packet, icmp_packet,
 	       sizeof(struct icmp_packet));
 
-	spin_lock(&device_client->lock);
+	spin_lock_irqsave(&device_client->lock, flags);
 
 	/* while waiting for the lock the device_client could have been
 	 * deleted */
 	if (!device_client_hash[icmp_packet->uid]) {
-		spin_unlock(&device_client->lock);
+		spin_unlock_irqrestore(&device_client->lock, flags);
 		kfree(device_packet);
 		return;
 	}
@@ -323,7 +332,7 @@ void bat_device_add_packet(struct device_client *device_client,
 		device_client->queue_len--;
 	}
 
-	spin_unlock(&device_client->lock);
+	spin_unlock_irqrestore(&device_client->lock, flags);
 
 	wake_up(&device_client->queue_wait);
 }

drivers/staging/batman-adv/hard-interface.c

@@ -21,13 +21,11 @@
 
 #include "main.h"
 #include "hard-interface.h"
-#include "log.h"
 #include "soft-interface.h"
 #include "send.h"
 #include "translation-table.h"
 #include "routing.h"
 #include "hash.h"
-#include "compat.h"
 
 #define MIN(x, y) ((x) < (y) ? (x) : (y))
 
@@ -75,7 +73,6 @@ int hardif_min_mtu(void)
 static void check_known_mac_addr(uint8_t *addr)
 {
 	struct batman_if *batman_if;
-	char mac_string[ETH_STR_LEN];
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(batman_if, &if_list, list) {
@@ -86,10 +83,9 @@ static void check_known_mac_addr(uint8_t *addr)
 		if (!compare_orig(batman_if->net_dev->dev_addr, addr))
 			continue;
 
-		addr_to_string(mac_string, addr);
-		debug_log(LOG_TYPE_WARN, "The newly added mac address (%s) already exists on: %s\n",
-		          mac_string, batman_if->dev);
-		debug_log(LOG_TYPE_WARN, "It is strongly recommended to keep mac addresses unique to avoid problems!\n");
+		printk(KERN_WARNING "batman-adv:The newly added mac address (%pM) already exists on: %s\n",
+		       addr, batman_if->dev);
+		printk(KERN_WARNING "batman-adv:It is strongly recommended to keep mac addresses unique to avoid problems!\n");
 	}
 	rcu_read_unlock();
 }
@@ -154,9 +150,6 @@ void hardif_deactivate_interface(struct batman_if *batman_if)
 	if (batman_if->if_active != IF_ACTIVE)
 		return;
 
-	if (batman_if->raw_sock)
-		sock_release(batman_if->raw_sock);
-
 	/**
 	 * batman_if->net_dev has been acquired by dev_get_by_name() in
 	 * proc_interfaces_write() and has to be unreferenced.
@@ -165,22 +158,16 @@ void hardif_deactivate_interface(struct batman_if *batman_if)
 	if (batman_if->net_dev)
 		dev_put(batman_if->net_dev);
 
-	batman_if->raw_sock = NULL;
-	batman_if->net_dev = NULL;
-
 	batman_if->if_active = IF_INACTIVE;
 	active_ifs--;
 
-	debug_log(LOG_TYPE_NOTICE, "Interface deactivated: %s\n",
-	          batman_if->dev);
+	printk(KERN_INFO "batman-adv:Interface deactivated: %s\n",
+		  batman_if->dev);
 }
 
 /* (re)activate given interface. */
 static void hardif_activate_interface(struct batman_if *batman_if)
 {
-	struct sockaddr_ll bind_addr;
-	int retval;
-
 	if (batman_if->if_active != IF_INACTIVE)
 		return;
 
@@ -192,35 +179,8 @@ static void hardif_activate_interface(struct batman_if *batman_if)
 	if (!batman_if->net_dev)
 		goto dev_err;
 
-	retval = sock_create_kern(PF_PACKET, SOCK_RAW,
-				  __constant_htons(ETH_P_BATMAN),
-				  &batman_if->raw_sock);
-
-	if (retval < 0) {
-		debug_log(LOG_TYPE_WARN, "Can't create raw socket: %i\n",
-			  retval);
-		goto sock_err;
-	}
-
-	bind_addr.sll_family = AF_PACKET;
-	bind_addr.sll_ifindex = batman_if->net_dev->ifindex;
-	bind_addr.sll_protocol = 0;	/* is set by the kernel */
-
-	retval = kernel_bind(batman_if->raw_sock,
-			     (struct sockaddr *)&bind_addr, sizeof(bind_addr));
-
-	if (retval < 0) {
-		debug_log(LOG_TYPE_WARN, "Can't create bind raw socket: %i\n",
-			  retval);
-		goto bind_err;
-	}
-
 	check_known_mac_addr(batman_if->net_dev->dev_addr);
 
-	batman_if->raw_sock->sk->sk_user_data =
-		batman_if->raw_sock->sk->sk_data_ready;
-	batman_if->raw_sock->sk->sk_data_ready = batman_data_ready;
-
 	addr_to_string(batman_if->addr_str, batman_if->net_dev->dev_addr);
 
 	memcpy(((struct batman_packet *)(batman_if->packet_buff))->orig,
@@ -235,17 +195,12 @@ static void hardif_activate_interface(struct batman_if *batman_if)
 	if (batman_if->if_num == 0)
 		set_main_if_addr(batman_if->net_dev->dev_addr);
 
-	debug_log(LOG_TYPE_NOTICE, "Interface activated: %s\n",
-	          batman_if->dev);
+	printk(KERN_INFO "batman-adv:Interface activated: %s\n",
+		  batman_if->dev);
 
 	return;
 
-bind_err:
-	sock_release(batman_if->raw_sock);
-sock_err:
-	dev_put(batman_if->net_dev);
 dev_err:
-	batman_if->raw_sock = NULL;
 	batman_if->net_dev = NULL;
 }
 
@@ -290,7 +245,7 @@ static int resize_orig(struct orig_node *orig_node, int if_num)
 	data_ptr = kmalloc((if_num + 1) * sizeof(TYPE_OF_WORD) * NUM_WORDS,
 			   GFP_ATOMIC);
 	if (!data_ptr) {
-		debug_log(LOG_TYPE_WARN, "Can't resize orig: out of memory\n");
+		printk(KERN_ERR "batman-adv:Can't resize orig: out of memory\n");
 		return -1;
 	}
 
@@ -301,7 +256,7 @@ static int resize_orig(struct orig_node *orig_node, int if_num)
 
 	data_ptr = kmalloc((if_num + 1) * sizeof(uint8_t), GFP_ATOMIC);
 	if (!data_ptr) {
-		debug_log(LOG_TYPE_WARN, "Can't resize orig: out of memory\n");
+		printk(KERN_ERR "batman-adv:Can't resize orig: out of memory\n");
 		return -1;
 	}
 
@@ -319,16 +274,16 @@ int hardif_add_interface(char *dev, int if_num)
 	struct batman_if *batman_if;
 	struct batman_packet *batman_packet;
 	struct orig_node *orig_node;
-	struct hash_it_t *hashit = NULL;
+	unsigned long flags;
+	HASHIT(hashit);
 
 	batman_if = kmalloc(sizeof(struct batman_if), GFP_KERNEL);
 
 	if (!batman_if) {
-		debug_log(LOG_TYPE_WARN, "Can't add interface (%s): out of memory\n", dev);
+		printk(KERN_ERR "batman-adv:Can't add interface (%s): out of memory\n", dev);
 		return -1;
 	}
 
-	batman_if->raw_sock = NULL;
 	batman_if->net_dev = NULL;
 
 	if ((if_num == 0) && (num_hna > 0))
@@ -339,7 +294,7 @@ int hardif_add_interface(char *dev, int if_num)
 	batman_if->packet_buff = kmalloc(batman_if->packet_len, GFP_KERNEL);
 
 	if (!batman_if->packet_buff) {
-		debug_log(LOG_TYPE_WARN, "Can't add interface packet (%s): out of memory\n", dev);
+		printk(KERN_ERR "batman-adv:Can't add interface packet (%s): out of memory\n", dev);
 		goto out;
 	}
 
@@ -348,7 +303,7 @@ int hardif_add_interface(char *dev, int if_num)
 	batman_if->if_active = IF_INACTIVE;
 	INIT_RCU_HEAD(&batman_if->rcu);
 
-	debug_log(LOG_TYPE_NOTICE, "Adding interface: %s\n", dev);
+	printk(KERN_INFO "batman-adv:Adding interface: %s\n", dev);
 	avail_ifs++;
 
 	INIT_LIST_HEAD(&batman_if->list);
@@ -376,20 +331,20 @@ int hardif_add_interface(char *dev, int if_num)
 
 	/* resize all orig nodes because orig_node->bcast_own(_sum) depend on
 	 * if_num */
-	spin_lock(&orig_hash_lock);
+	spin_lock_irqsave(&orig_hash_lock, flags);
 
-	while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
-		orig_node = hashit->bucket->data;
+	while (hash_iterate(orig_hash, &hashit)) {
+		orig_node = hashit.bucket->data;
 		if (resize_orig(orig_node, if_num) == -1) {
-			spin_unlock(&orig_hash_lock);
+			spin_unlock_irqrestore(&orig_hash_lock, flags);
 			goto out;
 		}
 	}
 
-	spin_unlock(&orig_hash_lock);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 
 	if (!hardif_is_interface_up(batman_if->dev))
-		debug_log(LOG_TYPE_WARN, "Not using interface %s (retrying later): interface not active\n", batman_if->dev);
+		printk(KERN_ERR "batman-adv:Not using interface %s (retrying later): interface not active\n", batman_if->dev);
 	else
 		hardif_activate_interface(batman_if);
 
@@ -400,8 +355,7 @@ int hardif_add_interface(char *dev, int if_num)
 	return 1;
 
 out:
-	if (batman_if->packet_buff)
-		kfree(batman_if->packet_buff);
+	kfree(batman_if->packet_buff);
 	kfree(batman_if);
 	kfree(dev);
 	return -1;
@@ -413,7 +367,7 @@ char hardif_get_active_if_num(void)
 }
 
 static int hard_if_event(struct notifier_block *this,
-                            unsigned long event, void *ptr)
+			    unsigned long event, void *ptr)
 {
 	struct net_device *dev = (struct net_device *)ptr;
 	struct batman_if *batman_if = get_batman_if_by_name(dev->name);
@@ -436,7 +390,6 @@ static int hard_if_event(struct notifier_block *this,
 		break;
 	/* NETDEV_CHANGEADDR - mac address change - what are we doing here ? */
 	default:
-		/* debug_log(LOG_TYPE_CRIT, "hard_if_event: %s %i\n", dev->name, event); */
 		break;
 	};
 
@@ -446,6 +399,122 @@ out:
 	return NOTIFY_DONE;
 }
 
+/* find batman interface by netdev. assumes rcu_read_lock on */
+static struct batman_if *find_batman_if(struct net_device *dev)
+{
+	struct batman_if *batman_if;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(batman_if, &if_list, list) {
+		if (batman_if->net_dev == dev) {
+			rcu_read_unlock();
+			return batman_if;
+		}
+	}
+	rcu_read_unlock();
+	return NULL;
+}
+
+
+/* receive a packet with the batman ethertype coming on a hard
+ * interface */
+int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
+	struct packet_type *ptype, struct net_device *orig_dev)
+{
+	struct batman_packet *batman_packet;
+	struct batman_if *batman_if;
+	struct net_device_stats *stats;
+	int ret;
+
+	skb = skb_share_check(skb, GFP_ATOMIC);
+
+	/* skb was released by skb_share_check() */
+	if (!skb)
+		goto err_out;
+
+	if (atomic_read(&module_state) != MODULE_ACTIVE)
+		goto err_free;
+
+	/* packet should hold at least type and version */
+	if (unlikely(skb_headlen(skb) < 2))
+		goto err_free;
+
+	/* expect a valid ethernet header here. */
+	if (unlikely(skb->mac_len != sizeof(struct ethhdr)
+				|| !skb_mac_header(skb)))
+		goto err_free;
+
+	batman_if = find_batman_if(skb->dev);
+	if (!batman_if)
+		goto err_free;
+
+	/* discard frames on not active interfaces */
+	if (batman_if->if_active != IF_ACTIVE)
+		goto err_free;
+
+	stats = (struct net_device_stats *)dev_get_stats(skb->dev);
+	if (stats) {
+		stats->rx_packets++;
+		stats->rx_bytes += skb->len;
+	}
+
+	batman_packet = (struct batman_packet *)skb->data;
+
+	if (batman_packet->version != COMPAT_VERSION) {
+		bat_dbg(DBG_BATMAN,
+			"Drop packet: incompatible batman version (%i)\n",
+			batman_packet->version);
+		goto err_free;
+	}
+
+	/* all receive handlers return whether they received or reused
+	 * the supplied skb. if not, we have to free the skb. */
+
+	switch (batman_packet->packet_type) {
+		/* batman originator packet */
+	case BAT_PACKET:
+		ret = recv_bat_packet(skb, batman_if);
+		break;
+
+		/* batman icmp packet */
+	case BAT_ICMP:
+		ret = recv_icmp_packet(skb);
+		break;
+
+		/* unicast packet */
+	case BAT_UNICAST:
+		ret = recv_unicast_packet(skb);
+		break;
+
+		/* broadcast packet */
+	case BAT_BCAST:
+		ret = recv_bcast_packet(skb);
+		break;
+
+		/* vis packet */
+	case BAT_VIS:
+		ret = recv_vis_packet(skb);
+		break;
+	default:
+		ret = NET_RX_DROP;
+	}
+
+	if (ret == NET_RX_DROP)
+		kfree_skb(skb);
+
+	/* return NET_RX_SUCCESS in any case as we
+	 * most probably dropped the packet for
+	 * routing-logical reasons. */
+
+	return NET_RX_SUCCESS;
+
+err_free:
+	kfree_skb(skb);
+err_out:
+	return NET_RX_DROP;
+}
+
+
 struct notifier_block hard_if_notifier = {
-        .notifier_call = hard_if_event,
+	.notifier_call = hard_if_event,
 };

drivers/staging/batman-adv/hard-interface.h

@@ -32,5 +32,9 @@ void hardif_deactivate_interface(struct batman_if *batman_if);
 char hardif_get_active_if_num(void);
 void hardif_check_interfaces_status(void);
 void hardif_check_interfaces_status_wq(struct work_struct *work);
+int batman_skb_recv(struct sk_buff *skb,
+				struct net_device *dev,
+				struct packet_type *ptype,
+				struct net_device *orig_dev);
 int hardif_min_mtu(void);
 void update_min_mtu(void);

drivers/staging/batman-adv/hash.c

@@ -64,24 +64,18 @@ void hash_destroy(struct hashtable_t *hash)
 	kfree(hash);
 }
 
-/* iterate though the hash. first element is selected with iter_in NULL.  use
- * the returned iterator to access the elements until hash_it_t returns NULL. */
+/* iterate though the hash. First element is selected if an iterator
+ * initialized with HASHIT() is supplied as iter. Use the returned
+ * (or supplied) iterator to access the elements until hash_iterate returns
+ * NULL. */
+
 struct hash_it_t *hash_iterate(struct hashtable_t *hash,
-			       struct hash_it_t *iter_in)
+			       struct hash_it_t *iter)
 {
-	struct hash_it_t *iter;
-
 	if (!hash)
 		return NULL;
-
-	if (iter_in == NULL) {
-		iter = kmalloc(sizeof(struct hash_it_t), GFP_ATOMIC);
-		iter->index = -1;
-		iter->bucket = NULL;
-		iter->prev_bucket = NULL;
-	} else {
-		iter = iter_in;
-	}
+	if (!iter)
+		return NULL;
 
 	/* sanity checks first (if our bucket got deleted in the last
 	 * iteration): */
@@ -139,7 +133,6 @@ struct hash_it_t *hash_iterate(struct hashtable_t *hash,
 	}
 
 	/* nothing to iterate over anymore */
-	kfree(iter);
 	return NULL;
 }
 

drivers/staging/batman-adv/hash.h

@@ -21,6 +21,11 @@
 
 #ifndef _BATMAN_HASH_H
 #define _BATMAN_HASH_H
+#define HASHIT(name) struct hash_it_t name = { \
+		.index = -1, .bucket = NULL, \
+		.prev_bucket = NULL, \
+		.first_bucket = NULL }
+
 
 typedef int (*hashdata_compare_cb)(void *, void *);
 typedef int (*hashdata_choose_cb)(void *, int);

drivers/staging/batman-adv/log.c

@@ -1,179 +0,0 @@
-/*
- * Copyright (C) 2007-2009 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner, Simon Wunderlich
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-
-#include "main.h"
-#include "log.h"
-
-#define LOG_BUF_MASK (log_buf_len-1)
-#define LOG_BUF(idx) (log_buf[(idx) & LOG_BUF_MASK])
-
-static char log_buf[LOG_BUF_LEN];
-static int log_buf_len = LOG_BUF_LEN;
-static unsigned long log_start;
-static unsigned long log_end;
-uint8_t log_level;
-
-static DEFINE_SPINLOCK(logbuf_lock);
-
-const struct file_operations proc_log_operations = {
-	.open           = log_open,
-	.release        = log_release,
-	.read           = log_read,
-	.write          = log_write,
-	.poll           = log_poll,
-};
-
-static DECLARE_WAIT_QUEUE_HEAD(log_wait);
-
-static void emit_log_char(char c)
-{
-	LOG_BUF(log_end) = c;
-	log_end++;
-
-	if (log_end - log_start > log_buf_len)
-		log_start = log_end - log_buf_len;
-}
-
-static int fdebug_log(char *fmt, ...)
-{
-	int printed_len;
-	char *p;
-	va_list args;
-	static char debug_log_buf[256];
-	unsigned long flags;
-
-	spin_lock_irqsave(&logbuf_lock, flags);
-	va_start(args, fmt);
-	printed_len = vscnprintf(debug_log_buf, sizeof(debug_log_buf), fmt,
-				 args);
-	va_end(args);
-
-	for (p = debug_log_buf; *p != 0; p++)
-		emit_log_char(*p);
-
-	spin_unlock_irqrestore(&logbuf_lock, flags);
-
-	wake_up(&log_wait);
-
-	return 0;
-}
-
-int debug_log(int type, char *fmt, ...)
-{
-	va_list args;
-	int retval = 0;
-	char tmp_log_buf[256];
-
-	/* only critical information get into the official kernel log */
-	if (type == LOG_TYPE_CRIT) {
-		va_start(args, fmt);
-		vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args);
-		printk(KERN_ERR "batman-adv: %s", tmp_log_buf);
-		va_end(args);
-	}
-
-	if ((type == LOG_TYPE_CRIT) || (log_level & type)) {
-		va_start(args, fmt);
-		vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args);
-		fdebug_log("[%10u] %s", (jiffies / HZ), tmp_log_buf);
-		va_end(args);
-	}
-
-	return retval;
-}
-
-int log_open(struct inode *inode, struct file *file)
-{
-	inc_module_count();
-	return 0;
-}
-
-int log_release(struct inode *inode, struct file *file)
-{
-	dec_module_count();
-	return 0;
-}
-
-ssize_t log_read(struct file *file, char __user *buf, size_t count,
-		 loff_t *ppos)
-{
-	int error, i = 0;
-	char c;
-	unsigned long flags;
-
-	if ((file->f_flags & O_NONBLOCK) && !(log_end - log_start))
-		return -EAGAIN;
-
-	if ((!buf) || (count < 0))
-		return -EINVAL;
-
-	if (count == 0)
-		return 0;
-
-	if (!access_ok(VERIFY_WRITE, buf, count))
-		return -EFAULT;
-
-	error = wait_event_interruptible(log_wait, (log_start - log_end));
-
-	if (error)
-		return error;
-
-	spin_lock_irqsave(&logbuf_lock, flags);
-
-	while ((!error) && (log_start != log_end) && (i < count)) {
-		c = LOG_BUF(log_start);
-
-		log_start++;
-
-		spin_unlock_irqrestore(&logbuf_lock, flags);
-
-		error = __put_user(c, buf);
-
-		spin_lock_irqsave(&logbuf_lock, flags);
-
-		buf++;
-		i++;
-
-	}
-
-	spin_unlock_irqrestore(&logbuf_lock, flags);
-
-	if (!error)
-		return i;
-
-	return error;
-}
-
-ssize_t log_write(struct file *file, const char __user *buf, size_t count,
-		  loff_t *ppos)
-{
-	return count;
-}
-
-unsigned int log_poll(struct file *file, poll_table *wait)
-{
-	poll_wait(file, &log_wait, wait);
-
-	if (log_end - log_start)
-		return POLLIN | POLLRDNORM;
-
-	return 0;
-}

drivers/staging/batman-adv/main.c

@@ -21,9 +21,9 @@
 
 #include "main.h"
 #include "proc.h"
-#include "log.h"
 #include "routing.h"
 #include "send.h"
+#include "originator.h"
 #include "soft-interface.h"
 #include "device.h"
 #include "translation-table.h"
@@ -31,7 +31,6 @@
 #include "types.h"
 #include "vis.h"
 #include "hash.h"
-#include "compat.h"
 
 struct list_head if_list;
 struct hlist_head forw_bat_list;
@@ -44,19 +43,34 @@ DEFINE_SPINLOCK(forw_bcast_list_lock);
 
 atomic_t originator_interval;
 atomic_t vis_interval;
+atomic_t vis_mode;
 atomic_t aggregation_enabled;
 int16_t num_hna;
 int16_t num_ifs;
 
 struct net_device *soft_device;
 
-static struct task_struct *kthread_task;
-
 unsigned char broadcastAddr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 atomic_t module_state;
 
+static struct packet_type batman_adv_packet_type __read_mostly = {
+	.type = __constant_htons(ETH_P_BATMAN),
+	.func = batman_skb_recv,
+};
+
 struct workqueue_struct *bat_event_workqueue;
 
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+int debug;
+
+module_param(debug, int, 0644);
+
+int bat_debug_type(int type)
+{
+	return debug & type;
+}
+#endif
+
 int init_module(void)
 {
 	int retval;
@@ -70,6 +84,7 @@ int init_module(void)
 	atomic_set(&originator_interval, 1000);
 	atomic_set(&vis_interval, 1000);/* TODO: raise this later, this is only
 					 * for debugging now. */
+	atomic_set(&vis_mode, VIS_TYPE_CLIENT_UPDATE);
 	atomic_set(&aggregation_enabled, 1);
 
 	/* the name should not be longer than 10 chars - see
@@ -90,21 +105,22 @@ int init_module(void)
 				   interface_setup);
 
 	if (!soft_device) {
-		debug_log(LOG_TYPE_CRIT, "Unable to allocate the batman interface\n");
+		printk(KERN_ERR "batman-adv:Unable to allocate the batman interface\n");
 		goto end;
 	}
 
 	retval = register_netdev(soft_device);
 
 	if (retval < 0) {
-		debug_log(LOG_TYPE_CRIT, "Unable to register the batman interface: %i\n", retval);
+		printk(KERN_ERR "batman-adv:Unable to register the batman interface: %i\n", retval);
 		goto free_soft_device;
 	}
 
 	register_netdevice_notifier(&hard_if_notifier);
+	dev_add_pack(&batman_adv_packet_type);
 
-	debug_log(LOG_TYPE_CRIT, "B.A.T.M.A.N. advanced %s%s (compatibility version %i) loaded \n",
-	          SOURCE_VERSION, REVISION_VERSION_STR, COMPAT_VERSION);
+	printk(KERN_INFO "batman-adv:B.A.T.M.A.N. advanced %s%s (compatibility version %i) loaded \n",
+		  SOURCE_VERSION, REVISION_VERSION_STR, COMPAT_VERSION);
 
 	return 0;
 
@@ -124,6 +140,8 @@ void cleanup_module(void)
 		soft_device = NULL;
 	}
 
+	dev_remove_pack(&batman_adv_packet_type);
+
 	unregister_netdevice_notifier(&hard_if_notifier);
 	cleanup_procfs();
 
@@ -151,22 +169,12 @@ void activate_module(void)
 	if (vis_init() < 1)
 		goto err;
 
-	/* (re)start kernel thread for packet processing */
-	if (!kthread_task) {
-		kthread_task = kthread_run(packet_recv_thread, NULL, "batman-adv");
-
-		if (IS_ERR(kthread_task)) {
-			debug_log(LOG_TYPE_CRIT, "Unable to start packet receive thread\n");
-			kthread_task = NULL;
-		}
-	}
-
 	update_min_mtu();
 	atomic_set(&module_state, MODULE_ACTIVE);
 	goto end;
 
 err:
-	debug_log(LOG_TYPE_CRIT, "Unable to allocate memory for mesh information structures: out of mem ?\n");
+	printk(KERN_ERR "batman-adv:Unable to allocate memory for mesh information structures: out of mem ?\n");
 	shutdown_module();
 end:
 	return;
@@ -182,14 +190,7 @@ void shutdown_module(void)
 
 	vis_quit();
 
-	/* deactivate kernel thread for packet processing (if running) */
-	if (kthread_task) {
-		atomic_set(&exit_cond, 1);
-		wake_up_interruptible(&thread_wait);
-		kthread_stop(kthread_task);
-
-		kthread_task = NULL;
-	}
+	/* TODO: unregister BATMAN pack */
 
 	originator_free();
 

drivers/staging/batman-adv/main.h

@@ -33,16 +33,16 @@
 
 #define TQ_MAX_VALUE 255
 #define JITTER 20
-#define TTL 50		          /* Time To Live of broadcast messages */
-#define MAX_ADDR 16	          /* number of interfaces which can be added to
+#define TTL 50			  /* Time To Live of broadcast messages */
+#define MAX_ADDR 16		  /* number of interfaces which can be added to
 				   * batman. */
 
-#define PURGE_TIMEOUT 200000      /* purge originators after time in ms if no
+#define PURGE_TIMEOUT 200000	  /* purge originators after time in ms if no
 				   * valid packet comes in -> TODO: check
 				   * influence on TQ_LOCAL_WINDOW_SIZE */
 #define LOCAL_HNA_TIMEOUT 3600000
 
-#define TQ_LOCAL_WINDOW_SIZE 64   /* sliding packet range of received originator
+#define TQ_LOCAL_WINDOW_SIZE 64	  /* sliding packet range of received originator
 				   * messages in squence numbers (should be a
 				   * multiple of our word size) */
 #define TQ_GLOBAL_WINDOW_SIZE 5
@@ -69,24 +69,27 @@
 
 
 /*
- * Logging
+ * Debug Messages
  */
 
-#define LOG_TYPE_CRIT 0		/* highest priority for fatal errors such as
-				 * blocked sockets / failed packet delivery /
-				 * programming errors */
-#define LOG_TYPE_WARN 1		/* warnings for small errors like wrong user
-				 * input / damaged packets / etc */
-#define LOG_TYPE_NOTICE 2	/* notice information for new interfaces /
-				 * changed settings / new originators / etc */
-#define LOG_TYPE_BATMAN 4	/* all messages related to routing / flooding /
-				 * broadcasting / etc */
-#define LOG_TYPE_ROUTES 8	/* route or hna added / changed / deleted */
-#define LOG_TYPE_CRIT_NAME	"critical"
-#define LOG_TYPE_WARN_NAME	"warnings"
-#define LOG_TYPE_NOTICE_NAME	"notices"
-#define LOG_TYPE_BATMAN_NAME	"batman"
-#define LOG_TYPE_ROUTES_NAME	"routes"
+#define DBG_BATMAN 1	/* all messages related to routing / flooding /
+			 * broadcasting / etc */
+#define DBG_ROUTES 2	/* route or hna added / changed / deleted */
+
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+extern int debug;
+
+extern int bat_debug_type(int type);
+#define bat_dbg(type, fmt, arg...) do {					\
+		if (bat_debug_type(type))				\
+			printk(KERN_DEBUG "batman-adv:" fmt, ## arg);	\
+	}								\
+	while (0)
+#else /* !CONFIG_BATMAN_ADV_DEBUG */
+#define bat_dbg(type, fmt, arg...) do {		\
+	}					\
+	while (0)
+#endif
 
 /*
  *  Vis
@@ -127,6 +130,7 @@ extern spinlock_t forw_bcast_list_lock;
 
 extern atomic_t originator_interval;
 extern atomic_t vis_interval;
+extern atomic_t vis_mode;
 extern atomic_t aggregation_enabled;
 extern int16_t num_hna;
 extern int16_t num_ifs;
@@ -147,5 +151,3 @@ int choose_orig(void *data, int32_t size);
 int is_my_mac(uint8_t *addr);
 int is_bcast(uint8_t *addr);
 int is_mcast(uint8_t *addr);
-
-

drivers/staging/batman-adv/originator.c

@@ -0,0 +1,252 @@
+/*
+ * Copyright (C) 2009 B.A.T.M.A.N. contributors:
+ *
+ * Marek Lindner, Simon Wunderlich
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+/* increase the reference counter for this originator */
+
+#include "main.h"
+#include "originator.h"
+#include "hash.h"
+#include "translation-table.h"
+#include "routing.h"
+
+static DECLARE_DELAYED_WORK(purge_orig_wq, purge_orig);
+
+static void start_purge_timer(void)
+{
+	queue_delayed_work(bat_event_workqueue, &purge_orig_wq, 1 * HZ);
+}
+
+int originator_init(void)
+{
+	unsigned long flags;
+	if (orig_hash)
+		return 1;
+
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	orig_hash = hash_new(128, compare_orig, choose_orig);
+
+	if (!orig_hash)
+		goto err;
+
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
+	start_purge_timer();
+	return 1;
+
+err:
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
+	return 0;
+}
+
+void originator_free(void)
+{
+	unsigned long flags;
+
+	if (!orig_hash)
+		return;
+
+	cancel_delayed_work_sync(&purge_orig_wq);
+
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	hash_delete(orig_hash, free_orig_node);
+	orig_hash = NULL;
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
+}
+
+struct neigh_node *
+create_neighbor(struct orig_node *orig_node, struct orig_node *orig_neigh_node,
+		uint8_t *neigh, struct batman_if *if_incoming)
+{
+	struct neigh_node *neigh_node;
+
+	bat_dbg(DBG_BATMAN, "Creating new last-hop neighbor of originator\n");
+
+	neigh_node = kzalloc(sizeof(struct neigh_node), GFP_ATOMIC);
+	if (!neigh_node)
+		return NULL;
+
+	INIT_LIST_HEAD(&neigh_node->list);
+
+	memcpy(neigh_node->addr, neigh, ETH_ALEN);
+	neigh_node->orig_node = orig_neigh_node;
+	neigh_node->if_incoming = if_incoming;
+
+	list_add_tail(&neigh_node->list, &orig_node->neigh_list);
+	return neigh_node;
+}
+
+void free_orig_node(void *data)
+{
+	struct list_head *list_pos, *list_pos_tmp;
+	struct neigh_node *neigh_node;
+	struct orig_node *orig_node = (struct orig_node *)data;
+
+	/* for all neighbors towards this originator ... */
+	list_for_each_safe(list_pos, list_pos_tmp, &orig_node->neigh_list) {
+		neigh_node = list_entry(list_pos, struct neigh_node, list);
+
+		list_del(list_pos);
+		kfree(neigh_node);
+	}
+
+	hna_global_del_orig(orig_node, "originator timed out");
+
+	kfree(orig_node->bcast_own);
+	kfree(orig_node->bcast_own_sum);
+	kfree(orig_node);
+}
+
+/* this function finds or creates an originator entry for the given
+ * address if it does not exits */
+struct orig_node *get_orig_node(uint8_t *addr)
+{
+	struct orig_node *orig_node;
+	struct hashtable_t *swaphash;
+	int size;
+
+	orig_node = ((struct orig_node *)hash_find(orig_hash, addr));
+
+	if (orig_node != NULL)
+		return orig_node;
+
+	bat_dbg(DBG_BATMAN, "Creating new originator: %pM \n", addr);
+
+	orig_node = kzalloc(sizeof(struct orig_node), GFP_ATOMIC);
+	if (!orig_node)
+		return NULL;
+
+	INIT_LIST_HEAD(&orig_node->neigh_list);
+
+	memcpy(orig_node->orig, addr, ETH_ALEN);
+	orig_node->router = NULL;
+	orig_node->batman_if = NULL;
+	orig_node->hna_buff = NULL;
+
+	size = num_ifs * sizeof(TYPE_OF_WORD) * NUM_WORDS;
+
+	orig_node->bcast_own = kzalloc(size, GFP_ATOMIC);
+	if (!orig_node->bcast_own)
+		goto free_orig_node;
+
+	size = num_ifs * sizeof(uint8_t);
+	orig_node->bcast_own_sum = kzalloc(size, GFP_ATOMIC);
+	if (!orig_node->bcast_own_sum)
+		goto free_bcast_own;
+
+	if (hash_add(orig_hash, orig_node) < 0)
+		goto free_bcast_own_sum;
+
+	if (orig_hash->elements * 4 > orig_hash->size) {
+		swaphash = hash_resize(orig_hash, orig_hash->size * 2);
+
+		if (swaphash == NULL)
+			printk(KERN_ERR
+			       "batman-adv:Couldn't resize orig hash table \n");
+		else
+			orig_hash = swaphash;
+	}
+
+	return orig_node;
+free_bcast_own_sum:
+	kfree(orig_node->bcast_own_sum);
+free_bcast_own:
+	kfree(orig_node->bcast_own);
+free_orig_node:
+	kfree(orig_node);
+	return NULL;
+}
+
+static bool purge_orig_neighbors(struct orig_node *orig_node,
+				 struct neigh_node **best_neigh_node)
+{
+	struct list_head *list_pos, *list_pos_tmp;
+	struct neigh_node *neigh_node;
+	bool neigh_purged = false;
+
+	*best_neigh_node = NULL;
+
+
+	/* for all neighbors towards this originator ... */
+	list_for_each_safe(list_pos, list_pos_tmp, &orig_node->neigh_list) {
+		neigh_node = list_entry(list_pos, struct neigh_node, list);
+
+		if (time_after(jiffies,
+			       (neigh_node->last_valid +
+				((PURGE_TIMEOUT * HZ) / 1000)))) {
+
+			bat_dbg(DBG_BATMAN, "neighbor timeout: originator %pM, neighbor: %pM, last_valid %lu\n", orig_node->orig, neigh_node->addr, (neigh_node->last_valid / HZ));
+
+			neigh_purged = true;
+			list_del(list_pos);
+			kfree(neigh_node);
+		} else {
+			if ((*best_neigh_node == NULL) ||
+			    (neigh_node->tq_avg > (*best_neigh_node)->tq_avg))
+				*best_neigh_node = neigh_node;
+		}
+	}
+	return neigh_purged;
+}
+
+
+static bool purge_orig_node(struct orig_node *orig_node)
+{
+	struct neigh_node *best_neigh_node;
+
+	if (time_after(jiffies,
+		       (orig_node->last_valid +
+			((2 * PURGE_TIMEOUT * HZ) / 1000)))) {
+
+		bat_dbg(DBG_BATMAN,
+			"Originator timeout: originator %pM, last_valid %lu\n",
+			orig_node->orig, (orig_node->last_valid / HZ));
+		return true;
+	} else {
+		if (purge_orig_neighbors(orig_node, &best_neigh_node))
+			update_routes(orig_node, best_neigh_node,
+				      orig_node->hna_buff,
+				      orig_node->hna_buff_len);
+	}
+	return false;
+}
+
+void purge_orig(struct work_struct *work)
+{
+	HASHIT(hashit);
+	struct orig_node *orig_node;
+	unsigned long flags;
+
+	spin_lock_irqsave(&orig_hash_lock, flags);
+
+	/* for all origins... */
+	while (hash_iterate(orig_hash, &hashit)) {
+		orig_node = hashit.bucket->data;
+		if (purge_orig_node(orig_node)) {
+			hash_remove_bucket(orig_hash, &hashit);
+			free_orig_node(orig_node);
+		}
+	}
+
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+	start_purge_timer();
+}
+
+

drivers/staging/batman-adv/log.h → drivers/staging/batman-adv/originator.h

@@ -19,14 +19,13 @@
  *
  */
 
-extern const struct file_operations proc_log_operations;
-extern uint8_t log_level;
+int originator_init(void);
+void free_orig_node(void *data);
+void originator_free(void);
+void purge_orig(struct work_struct *work);
+struct orig_node *orig_find(char *mac);
+struct orig_node *get_orig_node(uint8_t *addr);
+struct neigh_node *
+create_neighbor(struct orig_node *orig_node, struct orig_node *orig_neigh_node,
+		uint8_t *neigh, struct batman_if *if_incoming);
 
-int debug_log(int type, char *fmt, ...);
-int log_open(struct inode *inode, struct file *file);
-int log_release(struct inode *inode, struct file *file);
-ssize_t log_read(struct file *file, char __user *buf, size_t count,
-		 loff_t *ppos);
-ssize_t log_write(struct file *file, const char __user *buf, size_t count,
-		  loff_t *ppos);
-unsigned int log_poll(struct file *file, poll_table *wait);

drivers/staging/batman-adv/packet.h

@@ -90,7 +90,7 @@ struct vis_packet {
 	uint8_t  entries;	 /* number of entries behind this struct */
 	uint8_t  ttl;		 /* TTL */
 	uint8_t  vis_orig[6];	 /* originator that informs about its
-				  * neighbours */
+				  * neighbors */
 	uint8_t  target_orig[6]; /* who should receive this packet */
 	uint8_t  sender_orig[6]; /* who sent or rebroadcasted this packet */
 } __attribute__((packed));

drivers/staging/batman-adv/proc.c

@@ -21,23 +21,18 @@
 
 #include "main.h"
 #include "proc.h"
-#include "log.h"
 #include "routing.h"
 #include "translation-table.h"
 #include "hard-interface.h"
 #include "types.h"
 #include "hash.h"
 #include "vis.h"
-#include "compat.h"
-
-static uint8_t vis_format = DOT_DRAW;
 
 static struct proc_dir_entry *proc_batman_dir, *proc_interface_file;
 static struct proc_dir_entry *proc_orig_interval_file, *proc_originators_file;
-static struct proc_dir_entry *proc_log_file, *proc_log_level_file;
 static struct proc_dir_entry *proc_transt_local_file;
 static struct proc_dir_entry *proc_transt_global_file;
-static struct proc_dir_entry *proc_vis_file, *proc_vis_format_file;
+static struct proc_dir_entry *proc_vis_srv_file, *proc_vis_data_file;
 static struct proc_dir_entry *proc_aggr_file;
 
 static int proc_interfaces_read(struct seq_file *seq, void *offset)
@@ -68,7 +63,7 @@ static ssize_t proc_interfaces_write(struct file *instance,
 				     size_t count, loff_t *data)
 {
 	char *if_string, *colon_ptr = NULL, *cr_ptr = NULL;
-	int not_copied = 0, if_num = 0;
+	int not_copied = 0, if_num = 0, add_success;
 	struct batman_if *batman_if = NULL;
 
 	if_string = kmalloc(count, GFP_KERNEL);
@@ -77,8 +72,7 @@ static ssize_t proc_interfaces_write(struct file *instance,
 		return -ENOMEM;
 
 	if (count > IFNAMSIZ - 1) {
-		debug_log(LOG_TYPE_WARN,
-			  "Can't add interface: device name is too long\n");
+		printk(KERN_WARNING "batman-adv:Can't add interface: device name is too long\n");
 		goto end;
 	}
 
@@ -105,7 +99,7 @@ static ssize_t proc_interfaces_write(struct file *instance,
 	rcu_read_lock();
 	list_for_each_entry_rcu(batman_if, &if_list, list) {
 		if (strncmp(batman_if->dev, if_string, count) == 0) {
-			debug_log(LOG_TYPE_WARN, "Given interface is already active: %s\n", if_string);
+			printk(KERN_ERR "batman-adv:Given interface is already active: %s\n", if_string);
 			rcu_read_unlock();
 			goto end;
 
@@ -115,22 +109,17 @@ static ssize_t proc_interfaces_write(struct file *instance,
 	}
 	rcu_read_unlock();
 
-	hardif_add_interface(if_string, if_num);
+	add_success = hardif_add_interface(if_string, if_num);
+	if (add_success < 0)
+		goto end;
+
+	num_ifs = if_num + 1;
 
 	if ((atomic_read(&module_state) == MODULE_INACTIVE) &&
 	    (hardif_get_active_if_num() > 0))
 		activate_module();
 
-	rcu_read_lock();
-	if (list_empty(&if_list)) {
-		rcu_read_unlock();
-		goto end;
-	}
-	rcu_read_unlock();
-
-	num_ifs = if_num + 1;
 	return count;
-
 end:
 	kfree(if_string);
 	return count;
@@ -162,20 +151,18 @@ static ssize_t proc_orig_interval_write(struct file *file,
 
 	retval = strict_strtoul(interval_string, 10, &originator_interval_tmp);
 	if (retval) {
-		debug_log(LOG_TYPE_WARN, "New originator interval invalid\n");
+		printk(KERN_ERR "batman-adv:New originator interval invalid\n");
 		goto end;
 	}
 
 	if (originator_interval_tmp <= JITTER * 2) {
-		debug_log(LOG_TYPE_WARN,
-			  "New originator interval too small: %i (min: %i)\n",
-			  originator_interval_tmp, JITTER * 2);
+		printk(KERN_WARNING "batman-adv:New originator interval too small: %li (min: %i)\n",
+		       originator_interval_tmp, JITTER * 2);
 		goto end;
 	}
 
-	debug_log(LOG_TYPE_NOTICE,
-		  "Changing originator interval from: %i to: %i\n",
-		  atomic_read(&originator_interval), originator_interval_tmp);
+	printk(KERN_INFO "batman-adv:Changing originator interval from: %i to: %li\n",
+	       atomic_read(&originator_interval), originator_interval_tmp);
 
 	atomic_set(&originator_interval, originator_interval_tmp);
 
@@ -191,11 +178,12 @@ static int proc_orig_interval_open(struct inode *inode, struct file *file)
 
 static int proc_originators_read(struct seq_file *seq, void *offset)
 {
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	struct orig_node *orig_node;
 	struct neigh_node *neigh_node;
 	int batman_count = 0;
 	char orig_str[ETH_STR_LEN], router_str[ETH_STR_LEN];
+	unsigned long flags;
 
 	rcu_read_lock();
 	if (list_empty(&if_list)) {
@@ -218,11 +206,11 @@ static int proc_originators_read(struct seq_file *seq, void *offset)
 		   ((struct batman_if *)if_list.next)->addr_str);
 
 	rcu_read_unlock();
-	spin_lock(&orig_hash_lock);
+	spin_lock_irqsave(&orig_hash_lock, flags);
 
-	while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
+	while (hash_iterate(orig_hash, &hashit)) {
 
-		orig_node = hashit->bucket->data;
+		orig_node = hashit.bucket->data;
 
 		if (!orig_node->router)
 			continue;
@@ -249,7 +237,7 @@ static int proc_originators_read(struct seq_file *seq, void *offset)
 
 	}
 
-	spin_unlock(&orig_hash_lock);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 
 	if (batman_count == 0)
 		seq_printf(seq, "No batman nodes in range ... \n");
@@ -263,84 +251,6 @@ static int proc_originators_open(struct inode *inode, struct file *file)
 	return single_open(file, proc_originators_read, NULL);
 }
 
-static int proc_log_level_read(struct seq_file *seq, void *offset)
-{
-
-	seq_printf(seq, "[x] %s (%d)\n", LOG_TYPE_CRIT_NAME, LOG_TYPE_CRIT);
-	seq_printf(seq, "[%c] %s (%d)\n",
-		   (LOG_TYPE_WARN & log_level) ? 'x' : ' ',
-		   LOG_TYPE_WARN_NAME, LOG_TYPE_WARN);
-	seq_printf(seq, "[%c] %s (%d)\n",
-		   (LOG_TYPE_NOTICE & log_level) ? 'x' : ' ',
-		   LOG_TYPE_NOTICE_NAME, LOG_TYPE_NOTICE);
-	seq_printf(seq, "[%c] %s (%d)\n",
-		   (LOG_TYPE_BATMAN & log_level) ? 'x' : ' ',
-		   LOG_TYPE_BATMAN_NAME, LOG_TYPE_BATMAN);
-	seq_printf(seq, "[%c] %s (%d)\n",
-		   (LOG_TYPE_ROUTES & log_level) ? 'x' : ' ',
-		   LOG_TYPE_ROUTES_NAME, LOG_TYPE_ROUTES);
-	return 0;
-}
-
-static int proc_log_level_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, proc_log_level_read, NULL);
-}
-
-static ssize_t proc_log_level_write(struct file *instance,
-				    const char __user *userbuffer,
-				    size_t count, loff_t *data)
-{
-	char *log_level_string, *tokptr, *cp;
-	int finished, not_copied = 0;
-	unsigned long log_level_tmp = 0;
-
-	log_level_string = kmalloc(count, GFP_KERNEL);
-
-	if (!log_level_string)
-		return -ENOMEM;
-
-	not_copied = copy_from_user(log_level_string, userbuffer, count);
-	log_level_string[count - not_copied - 1] = 0;
-
-	if (strict_strtoul(log_level_string, 10, &log_level_tmp) < 0) {
-		/* was not a number, doing textual parsing */
-		log_level_tmp = 0;
-		tokptr = log_level_string;
-
-		for (cp = log_level_string, finished = 0; !finished; cp++) {
-			switch (*cp) {
-			case 0:
-				finished = 1;
-			case ' ':
-			case '\n':
-			case '\t':
-				*cp = 0;
-				/* compare */
-				if (strcmp(tokptr, LOG_TYPE_WARN_NAME) == 0)
-					log_level_tmp |= LOG_TYPE_WARN;
-				if (strcmp(tokptr, LOG_TYPE_NOTICE_NAME) == 0)
-					log_level_tmp |= LOG_TYPE_NOTICE;
-				if (strcmp(tokptr, LOG_TYPE_BATMAN_NAME) == 0)
-					log_level_tmp |= LOG_TYPE_BATMAN;
-				if (strcmp(tokptr, LOG_TYPE_ROUTES_NAME) == 0)
-					log_level_tmp |= LOG_TYPE_ROUTES;
-				tokptr = cp + 1;
-				break;
-			default:
-				;
-			}
-		}
-	}
-
-	debug_log(LOG_TYPE_CRIT, "Changing log_level from: %i to: %i\n",
-		  log_level, log_level_tmp);
-	log_level = log_level_tmp;
-
-	kfree(log_level_string);
-	return count;
-}
-
 static int proc_transt_local_read(struct seq_file *seq, void *offset)
 {
 	char *buf;
@@ -405,172 +315,8 @@ static int proc_transt_global_open(struct inode *inode, struct file *file)
 	return single_open(file, proc_transt_global_read, NULL);
 }
 
-/* insert interface to the list of interfaces of one originator */
-
-static void proc_vis_insert_interface(const uint8_t *interface,
-				      struct vis_if_list **if_entry,
-				      bool primary)
-{
-	/* Did we get an empty list? (then insert imediately) */
-	if(*if_entry == NULL) {
-		*if_entry = kmalloc(sizeof(struct vis_if_list), GFP_KERNEL);
-		if (*if_entry == NULL)
-			return;
-
-		(*if_entry)->primary = primary;
-		(*if_entry)->next = NULL;
-		memcpy((*if_entry)->addr, interface, ETH_ALEN);
-	} else {
-		struct vis_if_list *head_if_entry = *if_entry;
-		/* Do we already have this interface in our list? */
-		while (!compare_orig((*if_entry)->addr, (void *)interface)) {
-
-			/* Or did we reach the end (then append the interface) */
-			if ((*if_entry)->next == NULL) {
-				(*if_entry)->next = kmalloc(sizeof(struct vis_if_list), GFP_KERNEL);
-				if ((*if_entry)->next == NULL)
-					return;
-
-				memcpy((*if_entry)->next->addr, interface, ETH_ALEN);
-				(*if_entry)->next->primary = primary;
-				(*if_entry)->next->next = NULL;
-				break;
-			}
-			*if_entry = (*if_entry)->next;
-		}
-		/* Rewind the list to its head */
-		*if_entry = head_if_entry;
-	}
-}
-/* read an entry  */
-
-static void proc_vis_read_entry(struct seq_file *seq,
-				struct vis_info_entry *entry,
-				struct vis_if_list **if_entry,
-				uint8_t *vis_orig,
-				uint8_t current_format,
-				uint8_t first_line)
-{
-	char from[40];
-	char to[40];
-	int int_part, frac_part;
-
-	addr_to_string(to, entry->dest);
-	if (entry->quality == 0) {
-#ifndef VIS_SUBCLUSTERS_DISABLED
-		proc_vis_insert_interface(vis_orig, if_entry, true);
-#endif /* VIS_SUBCLUSTERS_DISABLED */
-		addr_to_string(from, vis_orig);
-		if (current_format == DOT_DRAW) {
-			seq_printf(seq, "\t\"%s\" -> \"%s\" [label=\"HNA\"]\n",
-				   from, to);
-		} else {
-			seq_printf(seq,
-				   "%s\t{ router : \"%s\", gateway   : \"%s\", label : \"HNA\" }",
-				   (first_line ? "" : ",\n"), from, to);
-		}
-	} else {
-#ifndef VIS_SUBCLUSTERS_DISABLED
-		proc_vis_insert_interface(entry->src, if_entry, compare_orig(entry->src, vis_orig));
-#endif /* VIS_SUBCLUSTERS_DISABLED */
-		addr_to_string(from, entry->src);
-
-		/* kernel has no printf-support for %f? it'd be better to return
-		 * this in float. */
-
-		int_part = TQ_MAX_VALUE / entry->quality;
-		frac_part = 1000 * TQ_MAX_VALUE / entry->quality - int_part * 1000;
-
-		if (current_format == DOT_DRAW) {
-			seq_printf(seq,
-				   "\t\"%s\" -> \"%s\" [label=\"%d.%d\"]\n",
-				   from, to, int_part, frac_part);
-		} else {
-			seq_printf(seq,
-				   "%s\t{ router : \"%s\", neighbour : \"%s\", label : %d.%d }",
-				   (first_line ? "" : ",\n"), from, to, int_part, frac_part);
-		}
-	}
-}
-
-
-static int proc_vis_read(struct seq_file *seq, void *offset)
-{
-	struct hash_it_t *hashit = NULL;
-	struct vis_info *info;
-	struct vis_info_entry *entries;
-	struct vis_if_list *if_entries = NULL;
-	int i;
-	uint8_t current_format, first_line = 1;
-#ifndef VIS_SUBCLUSTERS_DISABLED
-	char tmp_addr_str[ETH_STR_LEN];
-	struct vis_if_list *tmp_if_next;
-#endif /* VIS_SUBCLUSTERS_DISABLED */
-
-	current_format = vis_format;
-
-	rcu_read_lock();
-	if (list_empty(&if_list) || (!is_vis_server())) {
-		rcu_read_unlock();
-		if (current_format == DOT_DRAW)
-			seq_printf(seq, "digraph {\n}\n");
-		goto end;
-	}
-
-	rcu_read_unlock();
-
-	if (current_format == DOT_DRAW)
-		seq_printf(seq, "digraph {\n");
-
-	spin_lock(&vis_hash_lock);
-	while (NULL != (hashit = hash_iterate(vis_hash, hashit))) {
-		info = hashit->bucket->data;
-		entries = (struct vis_info_entry *)
-			((char *)info + sizeof(struct vis_info));
-
-		for (i = 0; i < info->packet.entries; i++) {
-			proc_vis_read_entry(seq, &entries[i], &if_entries,
-					    info->packet.vis_orig,
-					    current_format, first_line);
-			if (first_line)
-				first_line = 0;
-		}
-
-#ifndef VIS_SUBCLUSTERS_DISABLED
-		/* Generate subgraphs from the collected items */
-		if (current_format == DOT_DRAW) {
-
-			addr_to_string(tmp_addr_str, info->packet.vis_orig);
-			seq_printf(seq, "\tsubgraph \"cluster_%s\" {\n", tmp_addr_str);
-			while (if_entries != NULL) {
-
-				addr_to_string(tmp_addr_str, if_entries->addr);
-				if (if_entries->primary)
-					seq_printf(seq, "\t\t\"%s\" [peripheries=2]\n", tmp_addr_str);
-				else
-					seq_printf(seq, "\t\t\"%s\"\n", tmp_addr_str);
-
-				/* ... and empty the list while doing this */
-				tmp_if_next = if_entries->next;
-				kfree(if_entries);
-				if_entries = tmp_if_next;
-			}
-			seq_printf(seq, "\t}\n");
-		}
-#endif /* VIS_SUBCLUSTERS_DISABLED */
-	}
-	spin_unlock(&vis_hash_lock);
-
-	if (current_format == DOT_DRAW)
-		seq_printf(seq, "}\n");
-	else
-		seq_printf(seq, "\n");
-end:
-	return 0;
-}
-
 /* setting the mode of the vis server by the user */
-static ssize_t proc_vis_write(struct file *file, const char __user * buffer,
+static ssize_t proc_vis_srv_write(struct file *file, const char __user * buffer,
 			      size_t count, loff_t *ppos)
 {
 	char *vis_mode_string;
@@ -584,72 +330,84 @@ static ssize_t proc_vis_write(struct file *file, const char __user * buffer,
 	not_copied = copy_from_user(vis_mode_string, buffer, count);
 	vis_mode_string[count - not_copied - 1] = 0;
 
-	if (strcmp(vis_mode_string, "client") == 0) {
-		debug_log(LOG_TYPE_NOTICE, "Setting VIS mode to client\n");
-		vis_set_mode(VIS_TYPE_CLIENT_UPDATE);
-	} else if (strcmp(vis_mode_string, "server") == 0) {
-		debug_log(LOG_TYPE_NOTICE, "Setting VIS mode to server\n");
-		vis_set_mode(VIS_TYPE_SERVER_SYNC);
+	if ((strcmp(vis_mode_string, "client") == 0) ||
+			(strcmp(vis_mode_string, "disabled") == 0)) {
+		printk(KERN_INFO "batman-adv:Setting VIS mode to client (disabling vis server)\n");
+		atomic_set(&vis_mode, VIS_TYPE_CLIENT_UPDATE);
+	} else if ((strcmp(vis_mode_string, "server") == 0) ||
+			(strcmp(vis_mode_string, "enabled") == 0)) {
+		printk(KERN_INFO "batman-adv:Setting VIS mode to server (enabling vis server)\n");
+		atomic_set(&vis_mode, VIS_TYPE_SERVER_SYNC);
 	} else
-		debug_log(LOG_TYPE_WARN, "Unknown VIS mode: %s\n",
-			  vis_mode_string);
+		printk(KERN_ERR "batman-adv:Unknown VIS mode: %s\n",
+		       vis_mode_string);
 
 	kfree(vis_mode_string);
 	return count;
 }
 
-static int proc_vis_open(struct inode *inode, struct file *file)
+static int proc_vis_srv_read(struct seq_file *seq, void *offset)
 {
-	return single_open(file, proc_vis_read, NULL);
-}
+	int vis_server = atomic_read(&vis_mode);
+
+	seq_printf(seq, "[%c] client mode (server disabled) \n",
+			(vis_server == VIS_TYPE_CLIENT_UPDATE) ? 'x' : ' ');
+	seq_printf(seq, "[%c] server mode (server enabled) \n",
+			(vis_server == VIS_TYPE_SERVER_SYNC) ? 'x' : ' ');
 
-static int proc_vis_format_read(struct seq_file *seq, void *offset)
-{
-	uint8_t current_format = vis_format;
-
-	seq_printf(seq, "[%c] %s\n",
-		   (current_format == DOT_DRAW) ? 'x' : ' ',
-		   VIS_FORMAT_DD_NAME);
-	seq_printf(seq, "[%c] %s\n",
-		   (current_format == JSON) ? 'x' : ' ',
-		   VIS_FORMAT_JSON_NAME);
 	return 0;
 }
 
-static int proc_vis_format_open(struct inode *inode, struct file *file)
+static int proc_vis_srv_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, proc_vis_format_read, NULL);
+	return single_open(file, proc_vis_srv_read, NULL);
 }
 
-static ssize_t proc_vis_format_write(struct file *file,
-				     const char __user *buffer,
-				     size_t count, loff_t *ppos)
+static int proc_vis_data_read(struct seq_file *seq, void *offset)
 {
-	char *vis_format_string;
-	int not_copied = 0;
+	HASHIT(hashit);
+	struct vis_info *info;
+	struct vis_info_entry *entries;
+	HLIST_HEAD(vis_if_list);
+	int i;
+	char tmp_addr_str[ETH_STR_LEN];
+	unsigned long flags;
+	int vis_server = atomic_read(&vis_mode);
+
+	rcu_read_lock();
+	if (list_empty(&if_list) || (vis_server == VIS_TYPE_CLIENT_UPDATE)) {
+		rcu_read_unlock();
+		goto end;
+	}
 
-	vis_format_string = kmalloc(count, GFP_KERNEL);
+	rcu_read_unlock();
 
-	if (!vis_format_string)
-		return -ENOMEM;
+	spin_lock_irqsave(&vis_hash_lock, flags);
+	while (hash_iterate(vis_hash, &hashit)) {
+		info = hashit.bucket->data;
+		entries = (struct vis_info_entry *)
+			((char *)info + sizeof(struct vis_info));
+		addr_to_string(tmp_addr_str, info->packet.vis_orig);
+		seq_printf(seq, "%s,", tmp_addr_str);
 
-	not_copied = copy_from_user(vis_format_string, buffer, count);
-	vis_format_string[count - not_copied - 1] = 0;
-
-	if (strcmp(vis_format_string, VIS_FORMAT_DD_NAME) == 0) {
-		debug_log(LOG_TYPE_NOTICE, "Setting VIS output format to: %s\n",
-			  VIS_FORMAT_DD_NAME);
-		vis_format = DOT_DRAW;
-	} else if (strcmp(vis_format_string, VIS_FORMAT_JSON_NAME) == 0) {
-		debug_log(LOG_TYPE_NOTICE, "Setting VIS output format to: %s\n",
-			  VIS_FORMAT_JSON_NAME);
-		vis_format = JSON;
-	} else
-		debug_log(LOG_TYPE_WARN, "Unknown VIS output format: %s\n",
-			  vis_format_string);
+		for (i = 0; i < info->packet.entries; i++) {
+			proc_vis_read_entry(seq, &entries[i], &vis_if_list,
+					    info->packet.vis_orig);
+		}
 
-	kfree(vis_format_string);
-	return count;
+		/* add primary/secondary records */
+		proc_vis_read_prim_sec(seq, &vis_if_list);
+		seq_printf(seq, "\n");
+	}
+	spin_unlock_irqrestore(&vis_hash_lock, flags);
+
+end:
+	return 0;
+}
+
+static int proc_vis_data_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_vis_data_read, NULL);
 }
 
 static int proc_aggr_read(struct seq_file *seq, void *offset)
@@ -665,6 +423,7 @@ static ssize_t proc_aggr_write(struct file *file, const char __user *buffer,
 	char *aggr_string;
 	int not_copied = 0;
 	unsigned long aggregation_enabled_tmp;
+	int retval;
 
 	aggr_string = kmalloc(count, GFP_KERNEL);
 
@@ -674,22 +433,21 @@ static ssize_t proc_aggr_write(struct file *file, const char __user *buffer,
 	not_copied = copy_from_user(aggr_string, buffer, count);
 	aggr_string[count - not_copied - 1] = 0;
 
-	strict_strtoul(aggr_string, 10, &aggregation_enabled_tmp);
+	retval = strict_strtoul(aggr_string, 10, &aggregation_enabled_tmp);
 
-	if ((aggregation_enabled_tmp != 0) && (aggregation_enabled_tmp != 1)) {
-		debug_log(LOG_TYPE_WARN, "Aggregation can only be enabled (1) or disabled (0), given value: %li\n", aggregation_enabled_tmp);
-		goto end;
+	if (retval || aggregation_enabled_tmp > 1) {
+		printk(KERN_ERR "batman-adv:Aggregation can only be enabled (1) or disabled (0), given value: %li\n", aggregation_enabled_tmp);
+	} else {
+		printk(KERN_INFO "batman-adv:Changing aggregation from: %s (%i) to: %s (%li)\n",
+		       (atomic_read(&aggregation_enabled) == 1 ?
+			"enabled" : "disabled"),
+		       atomic_read(&aggregation_enabled),
+		       (aggregation_enabled_tmp == 1 ? "enabled" : "disabled"),
+		       aggregation_enabled_tmp);
+		atomic_set(&aggregation_enabled,
+			   (unsigned)aggregation_enabled_tmp);
 	}
 
-	debug_log(LOG_TYPE_NOTICE, "Changing aggregation from: %s (%i) to: %s (%li)\n",
-		  (atomic_read(&aggregation_enabled) == 1 ?
-		   "enabled" : "disabled"),
-		  atomic_read(&aggregation_enabled),
-		  (aggregation_enabled_tmp == 1 ? "enabled" : "disabled"),
-		  aggregation_enabled_tmp);
-
-	atomic_set(&aggregation_enabled, (unsigned)aggregation_enabled_tmp);
-end:
 	kfree(aggr_string);
 	return count;
 }
@@ -715,20 +473,20 @@ static const struct file_operations proc_aggr_fops = {
 	.release	= single_release,
 };
 
-static const struct file_operations proc_vis_format_fops = {
+static const struct file_operations proc_vis_srv_fops = {
 	.owner		= THIS_MODULE,
-	.open		= proc_vis_format_open,
+	.open		= proc_vis_srv_open,
 	.read		= seq_read,
-	.write		= proc_vis_format_write,
+	.write		= proc_vis_srv_write,
 	.llseek		= seq_lseek,
 	.release	= single_release,
 };
 
-static const struct file_operations proc_vis_fops = {
+static const struct file_operations proc_vis_data_fops = {
 	.owner		= THIS_MODULE,
-	.open		= proc_vis_open,
+	.open		= proc_vis_data_open,
 	.read		= seq_read,
-	.write		= proc_vis_write,
+	.write		= proc_dummy_write,
 	.llseek		= seq_lseek,
 	.release	= single_release,
 };
@@ -760,15 +518,6 @@ static const struct file_operations proc_transt_global_fops = {
 	.release	= single_release,
 };
 
-static const struct file_operations proc_log_level_fops = {
-	.owner		= THIS_MODULE,
-	.open		= proc_log_level_open,
-	.read		= seq_read,
-	.write		= proc_log_level_write,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static const struct file_operations proc_interfaces_fops = {
 	.owner		= THIS_MODULE,
 	.open		= proc_interfaces_open,
@@ -795,12 +544,6 @@ void cleanup_procfs(void)
 	if (proc_transt_local_file)
 		remove_proc_entry(PROC_FILE_TRANST_LOCAL, proc_batman_dir);
 
-	if (proc_log_file)
-		remove_proc_entry(PROC_FILE_LOG, proc_batman_dir);
-
-	if (proc_log_level_file)
-		remove_proc_entry(PROC_FILE_LOG_LEVEL, proc_batman_dir);
-
 	if (proc_originators_file)
 		remove_proc_entry(PROC_FILE_ORIGINATORS, proc_batman_dir);
 
@@ -810,11 +553,11 @@ void cleanup_procfs(void)
 	if (proc_interface_file)
 		remove_proc_entry(PROC_FILE_INTERFACES, proc_batman_dir);
 
-	if (proc_vis_file)
-		remove_proc_entry(PROC_FILE_VIS, proc_batman_dir);
+	if (proc_vis_data_file)
+		remove_proc_entry(PROC_FILE_VIS_DATA, proc_batman_dir);
 
-	if (proc_vis_format_file)
-		remove_proc_entry(PROC_FILE_VIS_FORMAT, proc_batman_dir);
+	if (proc_vis_srv_file)
+		remove_proc_entry(PROC_FILE_VIS_SRV, proc_batman_dir);
 
 	if (proc_aggr_file)
 		remove_proc_entry(PROC_FILE_AGGR, proc_batman_dir);
@@ -862,17 +605,6 @@ int setup_procfs(void)
 		return -EFAULT;
 	}
 
-	proc_log_level_file = create_proc_entry(PROC_FILE_LOG_LEVEL,
-						S_IWUSR | S_IRUGO,
-						proc_batman_dir);
-	if (proc_log_level_file) {
-		proc_log_level_file->proc_fops = &proc_log_level_fops;
-	} else {
-		printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_LOG_LEVEL);
-		cleanup_procfs();
-		return -EFAULT;
-	}
-
 	proc_originators_file = create_proc_entry(PROC_FILE_ORIGINATORS,
 						  S_IRUGO, proc_batman_dir);
 	if (proc_originators_file) {
@@ -883,16 +615,6 @@ int setup_procfs(void)
 		return -EFAULT;
 	}
 
-	proc_log_file = create_proc_entry(PROC_FILE_LOG,
-					  S_IRUGO, proc_batman_dir);
-	if (proc_log_file) {
-		proc_log_file->proc_fops = &proc_log_operations;
-	} else {
-		printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_FILE_LOG, PROC_FILE_GATEWAYS);
-		cleanup_procfs();
-		return -EFAULT;
-	}
-
 	proc_transt_local_file = create_proc_entry(PROC_FILE_TRANST_LOCAL,
 						   S_IRUGO, proc_batman_dir);
 	if (proc_transt_local_file) {
@@ -913,23 +635,23 @@ int setup_procfs(void)
 		return -EFAULT;
 	}
 
-	proc_vis_file = create_proc_entry(PROC_FILE_VIS, S_IWUSR | S_IRUGO,
-					  proc_batman_dir);
-	if (proc_vis_file) {
-		proc_vis_file->proc_fops = &proc_vis_fops;
+	proc_vis_srv_file = create_proc_entry(PROC_FILE_VIS_SRV,
+						S_IWUSR | S_IRUGO,
+						proc_batman_dir);
+	if (proc_vis_srv_file) {
+		proc_vis_srv_file->proc_fops = &proc_vis_srv_fops;
 	} else {
-		printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS);
+		printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS_SRV);
 		cleanup_procfs();
 		return -EFAULT;
 	}
 
-	proc_vis_format_file = create_proc_entry(PROC_FILE_VIS_FORMAT,
-						 S_IWUSR | S_IRUGO,
-						 proc_batman_dir);
-	if (proc_vis_format_file) {
-		proc_vis_format_file->proc_fops = &proc_vis_format_fops;
+	proc_vis_data_file = create_proc_entry(PROC_FILE_VIS_DATA, S_IRUGO,
+					  proc_batman_dir);
+	if (proc_vis_data_file) {
+		proc_vis_data_file->proc_fops = &proc_vis_data_fops;
 	} else {
-		printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS_FORMAT);
+		printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS_DATA);
 		cleanup_procfs();
 		return -EFAULT;
 	}
@@ -946,5 +668,3 @@ int setup_procfs(void)
 
 	return 0;
 }
-
-

drivers/staging/batman-adv/proc.h

@@ -31,19 +31,10 @@
 #define PROC_FILE_LOG_LEVEL "log_level"
 #define PROC_FILE_TRANST_LOCAL "transtable_local"
 #define PROC_FILE_TRANST_GLOBAL "transtable_global"
-#define PROC_FILE_VIS "vis"
-#define PROC_FILE_VIS_FORMAT "vis_format"
+#define PROC_FILE_VIS_SRV "vis_server"
+#define PROC_FILE_VIS_DATA "vis_data"
 #define PROC_FILE_AGGR "aggregate_ogm"
 
 void cleanup_procfs(void);
 int setup_procfs(void);
 
-/* While scanning for vis-entries of a particular vis-originator
- * this list collects its interfaces to create a subgraph/cluster
- * out of them later
- */
-struct vis_if_list {
-	uint8_t addr[ETH_ALEN];
-	bool primary;
-	struct vis_if_list *next;
-};

drivers/staging/batman-adv/routing.c

@@ -19,304 +19,226 @@
  *
  */
 
-
-
-
-
 #include "main.h"
 #include "routing.h"
-#include "log.h"
 #include "send.h"
+#include "hash.h"
 #include "soft-interface.h"
 #include "hard-interface.h"
 #include "device.h"
 #include "translation-table.h"
+#include "originator.h"
 #include "types.h"
-#include "hash.h"
 #include "ring_buffer.h"
 #include "vis.h"
 #include "aggregation.h"
-#include "compat.h"
-
-
 
 DECLARE_WAIT_QUEUE_HEAD(thread_wait);
-static DECLARE_DELAYED_WORK(purge_orig_wq, purge_orig);
-
-static atomic_t data_ready_cond;
-atomic_t exit_cond;
-
-static void start_purge_timer(void)
-{
-	queue_delayed_work(bat_event_workqueue, &purge_orig_wq, 1 * HZ);
-}
-
-int originator_init(void)
-{
-	if (orig_hash)
-		return 1;
-
-	spin_lock(&orig_hash_lock);
-	orig_hash = hash_new(128, compare_orig, choose_orig);
-
-	if (!orig_hash)
-		goto err;
-
-	spin_unlock(&orig_hash_lock);
-	start_purge_timer();
-	return 1;
-
-err:
-	spin_unlock(&orig_hash_lock);
-	return 0;
-}
-
-void originator_free(void)
-{
-	if (!orig_hash)
-		return;
-
-	cancel_delayed_work_sync(&purge_orig_wq);
-
-	spin_lock(&orig_hash_lock);
-	hash_delete(orig_hash, free_orig_node);
-	orig_hash = NULL;
-	spin_unlock(&orig_hash_lock);
-}
 
-static struct neigh_node *create_neighbor(struct orig_node *orig_node, struct orig_node *orig_neigh_node, uint8_t *neigh, struct batman_if *if_incoming)
+void slide_own_bcast_window(struct batman_if *batman_if)
 {
-	struct neigh_node *neigh_node;
+	HASHIT(hashit);
+	struct orig_node *orig_node;
+	TYPE_OF_WORD *word;
+	unsigned long flags;
 
-	debug_log(LOG_TYPE_BATMAN, "Creating new last-hop neighbour of originator\n");
+	spin_lock_irqsave(&orig_hash_lock, flags);
 
-	neigh_node = kmalloc(sizeof(struct neigh_node), GFP_ATOMIC);
-	memset(neigh_node, 0, sizeof(struct neigh_node));
-	INIT_LIST_HEAD(&neigh_node->list);
+	while (hash_iterate(orig_hash, &hashit)) {
+		orig_node = hashit.bucket->data;
+		word = &(orig_node->bcast_own[batman_if->if_num * NUM_WORDS]);
 
-	memcpy(neigh_node->addr, neigh, ETH_ALEN);
-	neigh_node->orig_node = orig_neigh_node;
-	neigh_node->if_incoming = if_incoming;
+		bit_get_packet(word, 1, 0);
+		orig_node->bcast_own_sum[batman_if->if_num] =
+			bit_packet_count(word);
+	}
 
-	list_add_tail(&neigh_node->list, &orig_node->neigh_list);
-	return neigh_node;
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 }
 
-void free_orig_node(void *data)
+static void update_HNA(struct orig_node *orig_node,
+		       unsigned char *hna_buff, int hna_buff_len)
 {
-	struct list_head *list_pos, *list_pos_tmp;
-	struct neigh_node *neigh_node;
-	struct orig_node *orig_node = (struct orig_node *)data;
+	if ((hna_buff_len != orig_node->hna_buff_len) ||
+	    ((hna_buff_len > 0) &&
+	     (orig_node->hna_buff_len > 0) &&
+	     (memcmp(orig_node->hna_buff, hna_buff, hna_buff_len) != 0))) {
 
-	/* for all neighbours towards this originator ... */
-	list_for_each_safe(list_pos, list_pos_tmp, &orig_node->neigh_list) {
-		neigh_node = list_entry(list_pos, struct neigh_node, list);
+		if (orig_node->hna_buff_len > 0)
+			hna_global_del_orig(orig_node,
+					    "originator changed hna");
 
-		list_del(list_pos);
-		kfree(neigh_node);
+		if ((hna_buff_len > 0) && (hna_buff != NULL))
+			hna_global_add_orig(orig_node, hna_buff, hna_buff_len);
 	}
-
-	hna_global_del_orig(orig_node, "originator timed out");
-
-	kfree(orig_node->bcast_own);
-	kfree(orig_node->bcast_own_sum);
-	kfree(orig_node);
 }
 
-/* this function finds or creates an originator entry for the given address if it does not exits */
-static struct orig_node *get_orig_node(uint8_t *addr)
+static void update_route(struct orig_node *orig_node,
+			 struct neigh_node *neigh_node,
+			 unsigned char *hna_buff, int hna_buff_len)
 {
-	struct orig_node *orig_node;
-	struct hashtable_t *swaphash;
-	char orig_str[ETH_STR_LEN];
-
-	orig_node = ((struct orig_node *)hash_find(orig_hash, addr));
-
-	if (orig_node != NULL)
-		return orig_node;
-
-	addr_to_string(orig_str, addr);
-	debug_log(LOG_TYPE_BATMAN, "Creating new originator: %s \n", orig_str);
-
-	orig_node = kmalloc(sizeof(struct orig_node), GFP_ATOMIC);
-	memset(orig_node, 0, sizeof(struct orig_node));
-	INIT_LIST_HEAD(&orig_node->neigh_list);
-
-	memcpy(orig_node->orig, addr, ETH_ALEN);
-	orig_node->router = NULL;
-	orig_node->batman_if = NULL;
-	orig_node->hna_buff = NULL;
+	/* route deleted */
+	if ((orig_node->router != NULL) && (neigh_node == NULL)) {
 
-	orig_node->bcast_own = kmalloc(num_ifs * sizeof(TYPE_OF_WORD) * NUM_WORDS, GFP_ATOMIC);
-	memset(orig_node->bcast_own, 0, num_ifs * sizeof(TYPE_OF_WORD) * NUM_WORDS);
+		bat_dbg(DBG_ROUTES, "Deleting route towards: %pM\n",
+			orig_node->orig);
+		hna_global_del_orig(orig_node, "originator timed out");
 
-	orig_node->bcast_own_sum = kmalloc(num_ifs * sizeof(uint8_t), GFP_ATOMIC);
-	memset(orig_node->bcast_own_sum, 0, num_ifs * sizeof(uint8_t));
-
-	hash_add(orig_hash, orig_node);
+		/* route added */
+	} else if ((orig_node->router == NULL) && (neigh_node != NULL)) {
 
-	if (orig_hash->elements * 4 > orig_hash->size) {
-		swaphash = hash_resize(orig_hash, orig_hash->size * 2);
+		bat_dbg(DBG_ROUTES,
+			"Adding route towards: %pM (via %pM)\n",
+			orig_node->orig, neigh_node->addr);
+		hna_global_add_orig(orig_node, hna_buff, hna_buff_len);
 
-		if (swaphash == NULL)
-			debug_log(LOG_TYPE_CRIT, "Couldn't resize orig hash table \n");
-		else
-			orig_hash = swaphash;
+		/* route changed */
+	} else {
+		bat_dbg(DBG_ROUTES, "Changing route towards: %pM (now via %pM - was via %pM)\n", orig_node->orig, neigh_node->addr, orig_node->router->addr);
 	}
 
-	return orig_node;
-}
-
-void slide_own_bcast_window(struct batman_if *batman_if)
-{
-	struct hash_it_t *hashit = NULL;
-	struct orig_node *orig_node;
-
-	spin_lock(&orig_hash_lock);
-
-	while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
-		orig_node = hashit->bucket->data;
-
-		bit_get_packet((TYPE_OF_WORD *)&(orig_node->bcast_own[batman_if->if_num * NUM_WORDS]), 1, 0);
-		orig_node->bcast_own_sum[batman_if->if_num] = bit_packet_count((TYPE_OF_WORD *)&(orig_node->bcast_own[batman_if->if_num * NUM_WORDS]));
-	}
+	if (neigh_node != NULL)
+		orig_node->batman_if = neigh_node->if_incoming;
+	else
+		orig_node->batman_if = NULL;
 
-	spin_unlock(&orig_hash_lock);
+	orig_node->router = neigh_node;
 }
 
-static void update_routes(struct orig_node *orig_node, struct neigh_node *neigh_node, unsigned char *hna_buff, int hna_buff_len)
+
+void update_routes(struct orig_node *orig_node,
+			  struct neigh_node *neigh_node,
+			  unsigned char *hna_buff, int hna_buff_len)
 {
-	char orig_str[ETH_STR_LEN], neigh_str[ETH_STR_LEN], router_str[ETH_STR_LEN];
 
 	if (orig_node == NULL)
 		return;
 
-	if (orig_node->router != neigh_node) {
-		addr_to_string(orig_str, orig_node->orig);
-
-		/* route deleted */
-		if ((orig_node->router != NULL) && (neigh_node == NULL)) {
-
-			debug_log(LOG_TYPE_ROUTES, "Deleting route towards: %s\n", orig_str);
-			hna_global_del_orig(orig_node, "originator timed out");
-
-		/* route added */
-		} else if ((orig_node->router == NULL) && (neigh_node != NULL)) {
-
-			addr_to_string(neigh_str, neigh_node->addr);
-			debug_log(LOG_TYPE_ROUTES, "Adding route towards: %s (via %s)\n", orig_str, neigh_str);
-			hna_global_add_orig(orig_node, hna_buff, hna_buff_len);
-
-		/* route changed */
-		} else {
-
-			addr_to_string(neigh_str, neigh_node->addr);
-			addr_to_string(router_str, orig_node->router->addr);
-			debug_log(LOG_TYPE_ROUTES, "Changing route towards: %s (now via %s - was via %s)\n", orig_str, neigh_str, router_str);
-
-		}
-
-		if (neigh_node != NULL)
-			orig_node->batman_if = neigh_node->if_incoming;
-		else
-			orig_node->batman_if = NULL;
-
-		orig_node->router = neigh_node;
-
+	if (orig_node->router != neigh_node)
+		update_route(orig_node, neigh_node, hna_buff, hna_buff_len);
 	/* may be just HNA changed */
-	} else {
-
-		if ((hna_buff_len != orig_node->hna_buff_len) || ((hna_buff_len > 0) && (orig_node->hna_buff_len > 0) && (memcmp(orig_node->hna_buff, hna_buff, hna_buff_len) != 0))) {
-
-			if (orig_node->hna_buff_len > 0)
-				hna_global_del_orig(orig_node, "originator changed hna");
-
-			if ((hna_buff_len > 0) && (hna_buff != NULL))
-				hna_global_add_orig(orig_node, hna_buff, hna_buff_len);
-
-		}
-
-	}
+	else
+		update_HNA(orig_node, hna_buff, hna_buff_len);
 }
 
-static int isBidirectionalNeigh(struct orig_node *orig_node, struct orig_node *orig_neigh_node, struct batman_packet *batman_packet, struct batman_if *if_incoming)
+static int isBidirectionalNeigh(struct orig_node *orig_node,
+				struct orig_node *orig_neigh_node,
+				struct batman_packet *batman_packet,
+				struct batman_if *if_incoming)
 {
 	struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL;
-	char orig_str[ETH_STR_LEN], neigh_str[ETH_STR_LEN];
 	unsigned char total_count;
 
-	addr_to_string(orig_str, orig_node->orig);
-	addr_to_string(neigh_str, orig_neigh_node->orig);
-
 	if (orig_node == orig_neigh_node) {
-		list_for_each_entry(tmp_neigh_node, &orig_node->neigh_list, list) {
+		list_for_each_entry(tmp_neigh_node,
+				    &orig_node->neigh_list,
+				    list) {
 
-			if (compare_orig(tmp_neigh_node->addr, orig_neigh_node->orig) && (tmp_neigh_node->if_incoming == if_incoming))
+			if (compare_orig(tmp_neigh_node->addr,
+					 orig_neigh_node->orig) &&
+			    (tmp_neigh_node->if_incoming == if_incoming))
 				neigh_node = tmp_neigh_node;
 		}
 
-		if (neigh_node == NULL)
-			neigh_node = create_neighbor(orig_node, orig_neigh_node, orig_neigh_node->orig, if_incoming);
+		if (!neigh_node)
+			neigh_node = create_neighbor(orig_node,
+						     orig_neigh_node,
+						     orig_neigh_node->orig,
+						     if_incoming);
+		/* create_neighbor failed, return 0 */
+		if (!neigh_node)
+			return 0;
 
 		neigh_node->last_valid = jiffies;
 	} else {
 		/* find packet count of corresponding one hop neighbor */
-		list_for_each_entry(tmp_neigh_node, &orig_neigh_node->neigh_list, list) {
+		list_for_each_entry(tmp_neigh_node,
+				    &orig_neigh_node->neigh_list, list) {
 
-			if (compare_orig(tmp_neigh_node->addr, orig_neigh_node->orig) && (tmp_neigh_node->if_incoming == if_incoming))
+			if (compare_orig(tmp_neigh_node->addr,
+					 orig_neigh_node->orig) &&
+			    (tmp_neigh_node->if_incoming == if_incoming))
 				neigh_node = tmp_neigh_node;
 		}
 
-		if (neigh_node == NULL)
-			neigh_node = create_neighbor(orig_neigh_node, orig_neigh_node, orig_neigh_node->orig, if_incoming);
+		if (!neigh_node)
+			neigh_node = create_neighbor(orig_neigh_node,
+						     orig_neigh_node,
+						     orig_neigh_node->orig,
+						     if_incoming);
+		/* create_neighbor failed, return 0 */
+		if (!neigh_node)
+			return 0;
 	}
 
 	orig_node->last_valid = jiffies;
 
 	/* pay attention to not get a value bigger than 100 % */
-	total_count = (orig_neigh_node->bcast_own_sum[if_incoming->if_num] > neigh_node->real_packet_count ? neigh_node->real_packet_count : orig_neigh_node->bcast_own_sum[if_incoming->if_num]);
+	total_count = (orig_neigh_node->bcast_own_sum[if_incoming->if_num] >
+		       neigh_node->real_packet_count ?
+		       neigh_node->real_packet_count :
+		       orig_neigh_node->bcast_own_sum[if_incoming->if_num]);
 
 	/* if we have too few packets (too less data) we set tq_own to zero */
 	/* if we receive too few packets it is not considered bidirectional */
-	if ((total_count < TQ_LOCAL_BIDRECT_SEND_MINIMUM) || (neigh_node->real_packet_count < TQ_LOCAL_BIDRECT_RECV_MINIMUM))
+	if ((total_count < TQ_LOCAL_BIDRECT_SEND_MINIMUM) ||
+	    (neigh_node->real_packet_count < TQ_LOCAL_BIDRECT_RECV_MINIMUM))
 		orig_neigh_node->tq_own = 0;
 	else
-		/* neigh_node->real_packet_count is never zero as we only purge old information when getting new information */
-		orig_neigh_node->tq_own = (TQ_MAX_VALUE * total_count) / neigh_node->real_packet_count;
+		/* neigh_node->real_packet_count is never zero as we
+		 * only purge old information when getting new
+		 * information */
+		orig_neigh_node->tq_own = (TQ_MAX_VALUE * total_count) /
+			neigh_node->real_packet_count;
 
 	/*
-	 * 1 - ((1-x) ** 3), normalized to TQ_MAX_VALUE
-	 * this does affect the nearly-symmetric links only a little,
-	 * but punishes asymmetric links more.
-	 * this will give a value between 0 and TQ_MAX_VALUE
+	 * 1 - ((1-x) ** 3), normalized to TQ_MAX_VALUE this does
+	 * affect the nearly-symmetric links only a little, but
+	 * punishes asymmetric links more.  This will give a value
+	 * between 0 and TQ_MAX_VALUE
 	 */
-	orig_neigh_node->tq_asym_penalty = TQ_MAX_VALUE - (TQ_MAX_VALUE *
-			(TQ_LOCAL_WINDOW_SIZE - neigh_node->real_packet_count) *
-			(TQ_LOCAL_WINDOW_SIZE - neigh_node->real_packet_count) *
-			(TQ_LOCAL_WINDOW_SIZE - neigh_node->real_packet_count)) /
-			(TQ_LOCAL_WINDOW_SIZE * TQ_LOCAL_WINDOW_SIZE * TQ_LOCAL_WINDOW_SIZE);
-
-	batman_packet->tq = ((batman_packet->tq * orig_neigh_node->tq_own * orig_neigh_node->tq_asym_penalty) / (TQ_MAX_VALUE *  TQ_MAX_VALUE));
-
-	debug_log(LOG_TYPE_BATMAN, "bidirectional: orig = %-15s neigh = %-15s => own_bcast = %2i, real recv = %2i, local tq: %3i, asym_penalty: %3i, total tq: %3i \n",
-		  orig_str, neigh_str, total_count, neigh_node->real_packet_count, orig_neigh_node->tq_own, orig_neigh_node->tq_asym_penalty, batman_packet->tq);
-
-	/* if link has the minimum required transmission quality consider it bidirectional */
+	orig_neigh_node->tq_asym_penalty =
+		TQ_MAX_VALUE -
+		(TQ_MAX_VALUE *
+		 (TQ_LOCAL_WINDOW_SIZE - neigh_node->real_packet_count) *
+		 (TQ_LOCAL_WINDOW_SIZE - neigh_node->real_packet_count) *
+		 (TQ_LOCAL_WINDOW_SIZE - neigh_node->real_packet_count)) /
+		(TQ_LOCAL_WINDOW_SIZE *
+		 TQ_LOCAL_WINDOW_SIZE *
+		 TQ_LOCAL_WINDOW_SIZE);
+
+	batman_packet->tq = ((batman_packet->tq *
+			      orig_neigh_node->tq_own *
+			      orig_neigh_node->tq_asym_penalty) /
+			     (TQ_MAX_VALUE *	 TQ_MAX_VALUE));
+
+	bat_dbg(DBG_BATMAN, "bidirectional: orig = %-15pM neigh = %-15pM => own_bcast = %2i, real recv = %2i, local tq: %3i, asym_penalty: %3i, total tq: %3i \n",
+		orig_node->orig, orig_neigh_node->orig, total_count,
+		neigh_node->real_packet_count, orig_neigh_node->tq_own,
+		orig_neigh_node->tq_asym_penalty, batman_packet->tq);
+
+	/* if link has the minimum required transmission quality
+	 * consider it bidirectional */
 	if (batman_packet->tq >= TQ_TOTAL_BIDRECT_LIMIT)
 		return 1;
 
 	return 0;
 }
 
-static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr, struct batman_packet *batman_packet, struct batman_if *if_incoming, unsigned char *hna_buff, int hna_buff_len, char is_duplicate)
+static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr,
+			struct batman_packet *batman_packet,
+			struct batman_if *if_incoming,
+			unsigned char *hna_buff, int hna_buff_len,
+			char is_duplicate)
 {
 	struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL;
 	int tmp_hna_buff_len;
 
-	debug_log(LOG_TYPE_BATMAN, "update_originator(): Searching and updating originator entry of received packet \n");
+	bat_dbg(DBG_BATMAN, "update_originator(): Searching and updating originator entry of received packet \n");
 
 	list_for_each_entry(tmp_neigh_node, &orig_node->neigh_list, list) {
-		if (compare_orig(tmp_neigh_node->addr, ethhdr->h_source) && (tmp_neigh_node->if_incoming == if_incoming)) {
+		if (compare_orig(tmp_neigh_node->addr, ethhdr->h_source) &&
+		    (tmp_neigh_node->if_incoming == if_incoming)) {
 			neigh_node = tmp_neigh_node;
 			continue;
 		}
@@ -324,19 +246,34 @@ static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr, stru
 		if (is_duplicate)
 			continue;
 
-		ring_buffer_set(tmp_neigh_node->tq_recv, &tmp_neigh_node->tq_index, 0);
-		tmp_neigh_node->tq_avg = ring_buffer_avg(tmp_neigh_node->tq_recv);
+		ring_buffer_set(tmp_neigh_node->tq_recv,
+				&tmp_neigh_node->tq_index, 0);
+		tmp_neigh_node->tq_avg =
+			ring_buffer_avg(tmp_neigh_node->tq_recv);
 	}
 
-	if (neigh_node == NULL)
-		neigh_node = create_neighbor(orig_node, get_orig_node(ethhdr->h_source), ethhdr->h_source, if_incoming);
-	else
-		debug_log(LOG_TYPE_BATMAN, "Updating existing last-hop neighbour of originator\n");
+	if (!neigh_node) {
+		struct orig_node *orig_tmp;
+
+		orig_tmp = get_orig_node(ethhdr->h_source);
+		if (!orig_tmp)
+			return;
+
+		neigh_node = create_neighbor(orig_node,
+					     orig_tmp,
+					     ethhdr->h_source, if_incoming);
+		if (!neigh_node)
+			return;
+	} else
+		bat_dbg(DBG_BATMAN,
+			"Updating existing last-hop neighbor of originator\n");
 
 	orig_node->flags = batman_packet->flags;
 	neigh_node->last_valid = jiffies;
 
-	ring_buffer_set(neigh_node->tq_recv, &neigh_node->tq_index, batman_packet->tq);
+	ring_buffer_set(neigh_node->tq_recv,
+			&neigh_node->tq_index,
+			batman_packet->tq);
 	neigh_node->tq_avg = ring_buffer_avg(neigh_node->tq_recv);
 
 	if (!is_duplicate) {
@@ -344,9 +281,11 @@ static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr, stru
 		neigh_node->last_ttl = batman_packet->ttl;
 	}
 
-	tmp_hna_buff_len = (hna_buff_len > batman_packet->num_hna * ETH_ALEN ? batman_packet->num_hna * ETH_ALEN : hna_buff_len);
+	tmp_hna_buff_len = (hna_buff_len > batman_packet->num_hna * ETH_ALEN ?
+			    batman_packet->num_hna * ETH_ALEN : hna_buff_len);
 
-	/* if this neighbor already is our next hop there is nothing to change */
+	/* if this neighbor already is our next hop there is nothing
+	 * to change */
 	if (orig_node->router == neigh_node)
 		goto update_hna;
 
@@ -355,11 +294,12 @@ static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr, stru
 	    (orig_node->router->tq_avg > neigh_node->tq_avg))
 		goto update_hna;
 
-	/* if the TQ is the same and the link not more symetric we won't consider it either */
+	/* if the TQ is the same and the link not more symetric we
+	 * won't consider it either */
 	if ((orig_node->router) &&
 	     ((neigh_node->tq_avg == orig_node->router->tq_avg) &&
-	     (orig_node->router->orig_node->bcast_own_sum[if_incoming->if_num] >=
-	      neigh_node->orig_node->bcast_own_sum[if_incoming->if_num])))
+	     (orig_node->router->orig_node->bcast_own_sum[if_incoming->if_num]
+	      >= neigh_node->orig_node->bcast_own_sum[if_incoming->if_num])))
 		goto update_hna;
 
 	update_routes(orig_node, neigh_node, hna_buff, tmp_hna_buff_len);
@@ -367,60 +307,72 @@ static void update_orig(struct orig_node *orig_node, struct ethhdr *ethhdr, stru
 
 update_hna:
 	update_routes(orig_node, orig_node->router, hna_buff, tmp_hna_buff_len);
-	return;
 }
 
-static char count_real_packets(struct ethhdr *ethhdr, struct batman_packet *batman_packet, struct batman_if *if_incoming)
+static char count_real_packets(struct ethhdr *ethhdr,
+			       struct batman_packet *batman_packet,
+			       struct batman_if *if_incoming)
 {
 	struct orig_node *orig_node;
 	struct neigh_node *tmp_neigh_node;
 	char is_duplicate = 0;
-
+	uint16_t seq_diff;
 
 	orig_node = get_orig_node(batman_packet->orig);
 	if (orig_node == NULL)
 		return 0;
 
-
 	list_for_each_entry(tmp_neigh_node, &orig_node->neigh_list, list) {
 
 		if (!is_duplicate)
-			is_duplicate = get_bit_status(tmp_neigh_node->real_bits, orig_node->last_real_seqno, batman_packet->seqno);
-
-		if (compare_orig(tmp_neigh_node->addr, ethhdr->h_source) && (tmp_neigh_node->if_incoming == if_incoming))
-			bit_get_packet(tmp_neigh_node->real_bits, batman_packet->seqno - orig_node->last_real_seqno, 1);
+			is_duplicate =
+				get_bit_status(tmp_neigh_node->real_bits,
+					       orig_node->last_real_seqno,
+					       batman_packet->seqno);
+		seq_diff = batman_packet->seqno - orig_node->last_real_seqno;
+		if (compare_orig(tmp_neigh_node->addr, ethhdr->h_source) &&
+		    (tmp_neigh_node->if_incoming == if_incoming))
+			bit_get_packet(tmp_neigh_node->real_bits, seq_diff, 1);
 		else
-			bit_get_packet(tmp_neigh_node->real_bits, batman_packet->seqno - orig_node->last_real_seqno, 0);
+			bit_get_packet(tmp_neigh_node->real_bits, seq_diff, 0);
 
-		tmp_neigh_node->real_packet_count = bit_packet_count(tmp_neigh_node->real_bits);
+		tmp_neigh_node->real_packet_count =
+			bit_packet_count(tmp_neigh_node->real_bits);
 	}
 
 	if (!is_duplicate) {
-		debug_log(LOG_TYPE_BATMAN, "updating last_seqno: old %d, new %d \n", orig_node->last_real_seqno, batman_packet->seqno);
+		bat_dbg(DBG_BATMAN, "updating last_seqno: old %d, new %d \n",
+			orig_node->last_real_seqno, batman_packet->seqno);
 		orig_node->last_real_seqno = batman_packet->seqno;
 	}
 
 	return is_duplicate;
 }
 
-void receive_bat_packet(struct ethhdr *ethhdr, struct batman_packet *batman_packet, unsigned char *hna_buff, int hna_buff_len, struct batman_if *if_incoming)
+void receive_bat_packet(struct ethhdr *ethhdr,
+				struct batman_packet *batman_packet,
+				unsigned char *hna_buff, int hna_buff_len,
+				struct batman_if *if_incoming)
 {
 	struct batman_if *batman_if;
 	struct orig_node *orig_neigh_node, *orig_node;
-	char orig_str[ETH_STR_LEN], prev_sender_str[ETH_STR_LEN], neigh_str[ETH_STR_LEN];
 	char has_directlink_flag;
-	char is_my_addr = 0, is_my_orig = 0, is_my_oldorig = 0, is_broadcast = 0, is_bidirectional, is_single_hop_neigh, is_duplicate;
+	char is_my_addr = 0, is_my_orig = 0, is_my_oldorig = 0;
+	char is_broadcast = 0, is_bidirectional, is_single_hop_neigh;
+	char is_duplicate;
 	unsigned short if_incoming_seqno;
 
-	/* Silently drop when the batman packet is actually not a correct packet.
+	/* Silently drop when the batman packet is actually not a
+	 * correct packet.
 	 *
 	 * This might happen if a packet is padded (e.g. Ethernet has a
 	 * minimum frame length of 64 byte) and the aggregation interprets
 	 * it as an additional length.
 	 *
-	 * TODO: A more sane solution would be to have a bit in the batman_packet
-	 * to detect whether the packet is the last packet in an aggregation.
-	 * Here we expect that the padding is always zero (or not 0x01)
+	 * TODO: A more sane solution would be to have a bit in the
+	 * batman_packet to detect whether the packet is the last
+	 * packet in an aggregation.  Here we expect that the padding
+	 * is always zero (or not 0x01)
 	 */
 	if (batman_packet->packet_type != BAT_PACKET)
 		return;
@@ -428,27 +380,31 @@ void receive_bat_packet(struct ethhdr *ethhdr, struct batman_packet *batman_pack
 	/* could be changed by schedule_own_packet() */
 	if_incoming_seqno = atomic_read(&if_incoming->seqno);
 
-	addr_to_string(orig_str, batman_packet->orig);
-	addr_to_string(prev_sender_str, batman_packet->prev_sender);
-	addr_to_string(neigh_str, ethhdr->h_source);
-
 	has_directlink_flag = (batman_packet->flags & DIRECTLINK ? 1 : 0);
 
-	is_single_hop_neigh = (compare_orig(ethhdr->h_source, batman_packet->orig) ? 1 : 0);
+	is_single_hop_neigh = (compare_orig(ethhdr->h_source,
+					    batman_packet->orig) ? 1 : 0);
 
-	debug_log(LOG_TYPE_BATMAN, "Received BATMAN packet via NB: %s, IF: %s [%s] (from OG: %s, via prev OG: %s, seqno %d, tq %d, TTL %d, V %d, IDF %d) \n", neigh_str, if_incoming->dev, if_incoming->addr_str, orig_str, prev_sender_str, batman_packet->seqno, batman_packet->tq, batman_packet->ttl, batman_packet->version, has_directlink_flag);
+	bat_dbg(DBG_BATMAN, "Received BATMAN packet via NB: %pM, IF: %s [%s] (from OG: %pM, via prev OG: %pM, seqno %d, tq %d, TTL %d, V %d, IDF %d) \n",
+		ethhdr->h_source, if_incoming->dev, if_incoming->addr_str,
+		batman_packet->orig, batman_packet->prev_sender,
+		batman_packet->seqno, batman_packet->tq, batman_packet->ttl,
+		batman_packet->version, has_directlink_flag);
 
 	list_for_each_entry_rcu(batman_if, &if_list, list) {
 		if (batman_if->if_active != IF_ACTIVE)
 			continue;
 
-		if (compare_orig(ethhdr->h_source, batman_if->net_dev->dev_addr))
+		if (compare_orig(ethhdr->h_source,
+				 batman_if->net_dev->dev_addr))
 			is_my_addr = 1;
 
-		if (compare_orig(batman_packet->orig, batman_if->net_dev->dev_addr))
+		if (compare_orig(batman_packet->orig,
+				 batman_if->net_dev->dev_addr))
 			is_my_orig = 1;
 
-		if (compare_orig(batman_packet->prev_sender, batman_if->net_dev->dev_addr))
+		if (compare_orig(batman_packet->prev_sender,
+				 batman_if->net_dev->dev_addr))
 			is_my_oldorig = 1;
 
 		if (compare_orig(ethhdr->h_source, broadcastAddr))
@@ -456,44 +412,61 @@ void receive_bat_packet(struct ethhdr *ethhdr, struct batman_packet *batman_pack
 	}
 
 	if (batman_packet->version != COMPAT_VERSION) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: incompatible batman version (%i) \n", batman_packet->version);
+		bat_dbg(DBG_BATMAN,
+			"Drop packet: incompatible batman version (%i)\n",
+			batman_packet->version);
 		return;
 	}
 
 	if (is_my_addr) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: received my own broadcast (sender: %s) \n", neigh_str);
+		bat_dbg(DBG_BATMAN,
+			"Drop packet: received my own broadcast (sender: %pM)\n",
+			ethhdr->h_source);
 		return;
 	}
 
 	if (is_broadcast) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: ignoring all packets with broadcast source addr (sender: %s) \n", neigh_str);
+		bat_dbg(DBG_BATMAN, "Drop packet: ignoring all packets with broadcast source addr (sender: %pM) \n", ethhdr->h_source);
 		return;
 	}
 
 	if (is_my_orig) {
+		TYPE_OF_WORD *word;
+		int offset;
+
 		orig_neigh_node = get_orig_node(ethhdr->h_source);
 
-		/* neighbour has to indicate direct link and it has to come via the corresponding interface */
-		/* if received seqno equals last send seqno save new seqno for bidirectional check */
-		if (has_directlink_flag && compare_orig(if_incoming->net_dev->dev_addr, batman_packet->orig) &&
-				  (batman_packet->seqno - if_incoming_seqno + 2 == 0)) {
-			bit_mark((TYPE_OF_WORD *)&(orig_neigh_node->bcast_own[if_incoming->if_num * NUM_WORDS]), 0);
-			orig_neigh_node->bcast_own_sum[if_incoming->if_num] = bit_packet_count((TYPE_OF_WORD *)&(orig_neigh_node->bcast_own[if_incoming->if_num * NUM_WORDS]));
+		if (!orig_neigh_node)
+			return;
+
+		/* neighbor has to indicate direct link and it has to
+		 * come via the corresponding interface */
+		/* if received seqno equals last send seqno save new
+		 * seqno for bidirectional check */
+		if (has_directlink_flag &&
+		    compare_orig(if_incoming->net_dev->dev_addr,
+				 batman_packet->orig) &&
+		    (batman_packet->seqno - if_incoming_seqno + 2 == 0)) {
+			offset = if_incoming->if_num * NUM_WORDS;
+			word = &(orig_neigh_node->bcast_own[offset]);
+			bit_mark(word, 0);
+			orig_neigh_node->bcast_own_sum[if_incoming->if_num] =
+				bit_packet_count(word);
 		}
 
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: originator packet from myself (via neighbour) \n");
+		bat_dbg(DBG_BATMAN, "Drop packet: originator packet from myself (via neighbor) \n");
 		return;
 	}
 
 	if (batman_packet->tq == 0) {
 		count_real_packets(ethhdr, batman_packet, if_incoming);
 
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: originator packet with tq equal 0 \n");
+		bat_dbg(DBG_BATMAN, "Drop packet: originator packet with tq equal 0 \n");
 		return;
 	}
 
 	if (is_my_oldorig) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: ignoring all rebroadcast echos (sender: %s) \n", neigh_str);
+		bat_dbg(DBG_BATMAN, "Drop packet: ignoring all rebroadcast echos (sender: %pM) \n", ethhdr->h_source);
 		return;
 	}
 
@@ -504,507 +477,502 @@ void receive_bat_packet(struct ethhdr *ethhdr, struct batman_packet *batman_pack
 		return;
 
 	/* avoid temporary routing loops */
-	if ((orig_node->router) && (orig_node->router->orig_node->router) &&
-	    (compare_orig(orig_node->router->addr, batman_packet->prev_sender)) &&
+	if ((orig_node->router) &&
+	    (orig_node->router->orig_node->router) &&
+	    (compare_orig(orig_node->router->addr,
+			  batman_packet->prev_sender)) &&
 	    !(compare_orig(batman_packet->orig, batman_packet->prev_sender)) &&
-	    (compare_orig(orig_node->router->addr, orig_node->router->orig_node->router->addr))) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: ignoring all rebroadcast packets that may make me loop (sender: %s) \n", neigh_str);
+	    (compare_orig(orig_node->router->addr,
+			  orig_node->router->orig_node->router->addr))) {
+		bat_dbg(DBG_BATMAN, "Drop packet: ignoring all rebroadcast packets that may make me loop (sender: %pM) \n", ethhdr->h_source);
 		return;
 	}
 
-	/* if sender is a direct neighbor the sender mac equals originator mac */
-	orig_neigh_node = (is_single_hop_neigh ? orig_node : get_orig_node(ethhdr->h_source));
+	/* if sender is a direct neighbor the sender mac equals
+	 * originator mac */
+	orig_neigh_node = (is_single_hop_neigh ?
+			   orig_node : get_orig_node(ethhdr->h_source));
 	if (orig_neigh_node == NULL)
 		return;
 
-	/* drop packet if sender is not a direct neighbor and if we don't route towards it */
-	if (!is_single_hop_neigh && (orig_neigh_node->router == NULL)) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: OGM via unknown neighbor! \n");
+	/* drop packet if sender is not a direct neighbor and if we
+	 * don't route towards it */
+	if (!is_single_hop_neigh &&
+	    (orig_neigh_node->router == NULL)) {
+		bat_dbg(DBG_BATMAN, "Drop packet: OGM via unknown neighbor!\n");
 		return;
 	}
 
-	is_bidirectional = isBidirectionalNeigh(orig_node, orig_neigh_node, batman_packet, if_incoming);
+	is_bidirectional = isBidirectionalNeigh(orig_node, orig_neigh_node,
+						batman_packet, if_incoming);
 
-	/* update ranking if it is not a duplicate or has the same seqno and similar ttl as the non-duplicate */
-	if (is_bidirectional && (!is_duplicate ||
-		((orig_node->last_real_seqno == batman_packet->seqno) &&
-			(orig_node->last_ttl - 3 <= batman_packet->ttl))))
-		update_orig(orig_node, ethhdr, batman_packet, if_incoming, hna_buff, hna_buff_len, is_duplicate);
+	/* update ranking if it is not a duplicate or has the same
+	 * seqno and similar ttl as the non-duplicate */
+	if (is_bidirectional &&
+	    (!is_duplicate ||
+	     ((orig_node->last_real_seqno == batman_packet->seqno) &&
+	      (orig_node->last_ttl - 3 <= batman_packet->ttl))))
+		update_orig(orig_node, ethhdr, batman_packet,
+			    if_incoming, hna_buff, hna_buff_len, is_duplicate);
 
-	/* is single hop (direct) neighbour */
+	/* is single hop (direct) neighbor */
 	if (is_single_hop_neigh) {
 
 		/* mark direct link on incoming interface */
-		schedule_forward_packet(orig_node, ethhdr, batman_packet, 1, hna_buff_len, if_incoming);
+		schedule_forward_packet(orig_node, ethhdr, batman_packet,
+					1, hna_buff_len, if_incoming);
 
-		debug_log(LOG_TYPE_BATMAN, "Forwarding packet: rebroadcast neighbour packet with direct link flag \n");
+		bat_dbg(DBG_BATMAN, "Forwarding packet: rebroadcast neighbor packet with direct link flag\n");
 		return;
 	}
 
 	/* multihop originator */
 	if (!is_bidirectional) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: not received via bidirectional link\n");
+		bat_dbg(DBG_BATMAN,
+			"Drop packet: not received via bidirectional link\n");
 		return;
 	}
 
 	if (is_duplicate) {
-		debug_log(LOG_TYPE_BATMAN, "Drop packet: duplicate packet received\n");
+		bat_dbg(DBG_BATMAN, "Drop packet: duplicate packet received\n");
 		return;
 	}
 
-	debug_log(LOG_TYPE_BATMAN, "Forwarding packet: rebroadcast originator packet \n");
-	schedule_forward_packet(orig_node, ethhdr, batman_packet, 0, hna_buff_len, if_incoming);
+	bat_dbg(DBG_BATMAN,
+		"Forwarding packet: rebroadcast originator packet\n");
+	schedule_forward_packet(orig_node, ethhdr, batman_packet,
+				0, hna_buff_len, if_incoming);
 }
 
-void purge_orig(struct work_struct *work)
+int recv_bat_packet(struct sk_buff *skb,
+				struct batman_if *batman_if)
 {
-	struct list_head *list_pos, *list_pos_tmp;
-	struct hash_it_t *hashit = NULL;
-	struct orig_node *orig_node;
-	struct neigh_node *neigh_node, *best_neigh_node;
-	char orig_str[ETH_STR_LEN], neigh_str[ETH_STR_LEN], neigh_purged;
-
-	spin_lock(&orig_hash_lock);
-
-	/* for all origins... */
-	while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
-
-		orig_node = hashit->bucket->data;
-		addr_to_string(orig_str, orig_node->orig);
-
-		if (time_after(jiffies, orig_node->last_valid + ((2 * PURGE_TIMEOUT * HZ) / 1000))) {
-
-			debug_log(LOG_TYPE_BATMAN, "Originator timeout: originator %s, last_valid %u \n", orig_str, (orig_node->last_valid / HZ));
-
-			hash_remove_bucket(orig_hash, hashit);
-			free_orig_node(orig_node);
-
-		} else {
-
-			best_neigh_node = NULL;
-			neigh_purged = 0;
-
-			/* for all neighbours towards this originator ... */
-			list_for_each_safe(list_pos, list_pos_tmp, &orig_node->neigh_list) {
-				neigh_node = list_entry(list_pos, struct neigh_node, list);
-
-				if (time_after(jiffies, neigh_node->last_valid + ((PURGE_TIMEOUT * HZ) / 1000))) {
-
-					addr_to_string(neigh_str, neigh_node->addr);
-					debug_log(LOG_TYPE_BATMAN, "Neighbour timeout: originator %s, neighbour: %s, last_valid %u \n", orig_str, neigh_str, (neigh_node->last_valid / HZ));
-
-					neigh_purged = 1;
-					list_del(list_pos);
-					kfree(neigh_node);
-
-				} else {
-
-					if ((best_neigh_node == NULL) || (neigh_node->tq_avg > best_neigh_node->tq_avg))
-						best_neigh_node = neigh_node;
-
-				}
-
-			}
+	struct ethhdr *ethhdr;
+	unsigned long flags;
+
+	/* drop packet if it has not necessary minimum size */
+	if (skb_headlen(skb) < sizeof(struct batman_packet))
+		return NET_RX_DROP;
+
+	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+
+	/* packet with broadcast indication but unicast recipient */
+	if (!is_bcast(ethhdr->h_dest))
+		return NET_RX_DROP;
+
+	/* packet with broadcast sender address */
+	if (is_bcast(ethhdr->h_source))
+		return NET_RX_DROP;
+
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	/* TODO: we use headlen instead of "length", because
+	 * only this data is paged in. */
+	/* TODO: is another skb_copy needed here? there will be
+	 * written on the data, but nobody (?) should further use
+	 * this data */
+	receive_aggr_bat_packet(ethhdr,
+				skb->data,
+				skb_headlen(skb),
+				batman_if);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+	kfree_skb(skb);
+	return NET_RX_SUCCESS;
+}
 
-			if (neigh_purged)
-				update_routes(orig_node, best_neigh_node, orig_node->hna_buff, orig_node->hna_buff_len);
+static int recv_my_icmp_packet(struct sk_buff *skb)
+{
+	struct orig_node *orig_node;
+	struct icmp_packet *icmp_packet;
+	struct ethhdr *ethhdr;
+	struct sk_buff *skb_old;
+	struct batman_if *batman_if;
+	int ret;
+	unsigned long flags;
+	uint8_t dstaddr[ETH_ALEN];
 
-		}
+	icmp_packet = (struct icmp_packet *) skb->data;
+	ethhdr = (struct ethhdr *) skb_mac_header(skb);
 
+	/* add data to device queue */
+	if (icmp_packet->msg_type != ECHO_REQUEST) {
+		bat_device_receive_packet(icmp_packet);
+		return NET_RX_DROP;
 	}
 
-	spin_unlock(&orig_hash_lock);
+	/* answer echo request (ping) */
+	/* get routing information */
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	orig_node = ((struct orig_node *)hash_find(orig_hash,
+						   icmp_packet->orig));
+	ret = NET_RX_DROP;
+
+	if ((orig_node != NULL) &&
+	    (orig_node->batman_if != NULL) &&
+	    (orig_node->router != NULL)) {
+
+		/* don't lock while sending the packets ... we therefore
+		 * copy the required data before sending */
+		batman_if = orig_node->batman_if;
+		memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+		/* create a copy of the skb, if needed, to modify it. */
+		skb_old = NULL;
+		if (!skb_clone_writable(skb, sizeof(struct icmp_packet))) {
+			skb_old = skb;
+			skb = skb_copy(skb, GFP_ATOMIC);
+			if (!skb)
+				return NET_RX_DROP;
+			icmp_packet = (struct icmp_packet *) skb->data;
+			kfree_skb(skb_old);
+		}
 
-	start_purge_timer();
-}
+		memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
+		memcpy(icmp_packet->orig, ethhdr->h_dest, ETH_ALEN);
+		icmp_packet->msg_type = ECHO_REPLY;
+		icmp_packet->ttl = TTL;
 
-static int receive_raw_packet(struct socket *raw_sock, unsigned char *packet_buff, int packet_buff_len)
-{
-	struct kvec iov;
-	struct msghdr msg;
+		send_skb_packet(skb, batman_if, dstaddr);
+		ret = NET_RX_SUCCESS;
 
-	iov.iov_base = packet_buff;
-	iov.iov_len = packet_buff_len;
+	} else
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
 
-	msg.msg_flags = MSG_DONTWAIT;	/* non-blocking */
-	msg.msg_name = NULL;
-	msg.msg_namelen = 0;
-	msg.msg_control = NULL;
-
-	return kernel_recvmsg(raw_sock, &msg, &iov, 1, packet_buff_len, MSG_DONTWAIT);
+	return ret;
 }
 
-int packet_recv_thread(void *data)
+static int recv_icmp_ttl_exceeded(struct sk_buff *skb)
 {
-	struct batman_if *batman_if;
-	struct ethhdr *ethhdr;
-	struct batman_packet *batman_packet;
-	struct unicast_packet *unicast_packet;
-	struct bcast_packet *bcast_packet;
-	struct icmp_packet *icmp_packet;
-	struct vis_packet *vis_packet;
 	struct orig_node *orig_node;
-	unsigned char *packet_buff, src_str[ETH_STR_LEN], dst_str[ETH_STR_LEN];
-	int vis_info_len;
-	int result;
-
-	atomic_set(&data_ready_cond, 0);
-	atomic_set(&exit_cond, 0);
-	packet_buff = kmalloc(PACKBUFF_SIZE, GFP_KERNEL);
-	if (!packet_buff) {
-		debug_log(LOG_TYPE_CRIT, "Could allocate memory for the packet buffer. :(\n");
-		return -1;
+	struct icmp_packet *icmp_packet;
+	struct ethhdr *ethhdr;
+	struct sk_buff *skb_old;
+	struct batman_if *batman_if;
+	int ret;
+	unsigned long flags;
+	uint8_t dstaddr[ETH_ALEN];
+
+	icmp_packet = (struct icmp_packet *)skb->data;
+	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+
+	/* send TTL exceeded if packet is an echo request (traceroute) */
+	if (icmp_packet->msg_type != ECHO_REQUEST) {
+		printk(KERN_WARNING "batman-adv:Warning - can't forward icmp packet from %pM to %pM: ttl exceeded\n",
+			icmp_packet->orig, icmp_packet->dst);
+		return NET_RX_DROP;
 	}
 
-	while ((!kthread_should_stop()) && (!atomic_read(&exit_cond))) {
-
-		wait_event_interruptible(thread_wait, (atomic_read(&data_ready_cond) || atomic_read(&exit_cond)));
-
-		atomic_set(&data_ready_cond, 0);
-
-		if (kthread_should_stop() || atomic_read(&exit_cond))
-			break;
-
-		/* we only want to safely traverse the list, hard-interfaces
-		 * won't be deleted anyway as long as this thread runs. */
-
-		rcu_read_lock();
-		list_for_each_entry_rcu(batman_if, &if_list, list) {
-			rcu_read_unlock();
-
-			result = -1;
-
-			while (1) {
-				if (batman_if->if_active != IF_ACTIVE) {
-					if (batman_if->if_active != IF_TO_BE_ACTIVATED)
-						debug_log(LOG_TYPE_NOTICE,
-						          "Could not read from deactivated interface %s!\n",
-						          batman_if->dev);
-
-					if (batman_if->raw_sock)
-						receive_raw_packet(batman_if->raw_sock, packet_buff, PACKBUFF_SIZE);
-					result = 0;
-					break;
-				}
-
-				result = receive_raw_packet(batman_if->raw_sock, packet_buff, PACKBUFF_SIZE);
-				if (result <= 0)
-					break;
-
-				if (result < sizeof(struct ethhdr) + 2)
-					continue;
-
-				ethhdr = (struct ethhdr *)packet_buff;
-				batman_packet = (struct batman_packet *)(packet_buff + sizeof(struct ethhdr));
-
-				if (batman_packet->version != COMPAT_VERSION) {
-					debug_log(LOG_TYPE_BATMAN, "Drop packet: incompatible batman version (%i) \n", batman_packet->version);
-					continue;
-				}
-
-				switch (batman_packet->packet_type) {
-				/* batman originator packet */
-				case BAT_PACKET:
-					/* packet with broadcast indication but unicast recipient */
-					if (!is_bcast(ethhdr->h_dest))
-						continue;
-
-					/* packet with broadcast sender address */
-					if (is_bcast(ethhdr->h_source))
-						continue;
-
-					/* drop packet if it has not at least one batman packet as payload */
-					if (result < sizeof(struct ethhdr) + sizeof(struct batman_packet))
-						continue;
-
-					spin_lock(&orig_hash_lock);
-					receive_aggr_bat_packet(ethhdr,
-					                        packet_buff + sizeof(struct ethhdr),
-					                        result - sizeof(struct ethhdr),
-					                        batman_if);
-					spin_unlock(&orig_hash_lock);
-
-					break;
-
-				/* batman icmp packet */
-				case BAT_ICMP:
-					/* packet with unicast indication but broadcast recipient */
-					if (is_bcast(ethhdr->h_dest))
-						continue;
-
-					/* packet with broadcast sender address */
-					if (is_bcast(ethhdr->h_source))
-						continue;
-
-					/* not for me */
-					if (!is_my_mac(ethhdr->h_dest))
-						continue;
-
-					/* drop packet if it has not necessary minimum size */
-					if (result < sizeof(struct ethhdr) + sizeof(struct icmp_packet))
-						continue;
-
-					icmp_packet = (struct icmp_packet *)(packet_buff + sizeof(struct ethhdr));
-
-					/* packet for me */
-					if (is_my_mac(icmp_packet->dst)) {
-
-						/* add data to device queue */
-						if (icmp_packet->msg_type != ECHO_REQUEST) {
-							bat_device_receive_packet(icmp_packet);
-							continue;
-						}
-
-						/* answer echo request (ping) */
-						/* get routing information */
-						spin_lock(&orig_hash_lock);
-						orig_node = ((struct orig_node *)hash_find(orig_hash, icmp_packet->orig));
-
-						if ((orig_node != NULL) && (orig_node->batman_if != NULL) && (orig_node->router != NULL)) {
-
-							memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
-							memcpy(icmp_packet->orig, ethhdr->h_dest, ETH_ALEN);
-							icmp_packet->msg_type = ECHO_REPLY;
-							icmp_packet->ttl = TTL;
-
-							send_raw_packet(packet_buff + sizeof(struct ethhdr),
-							                result - sizeof(struct ethhdr),
-							                orig_node->batman_if,
-							                orig_node->router->addr);
-
-						}
-
-						spin_unlock(&orig_hash_lock);
-						continue;
-
-					}
-
-					/* TTL exceeded */
-					if (icmp_packet->ttl < 2) {
-
-						addr_to_string(src_str, icmp_packet->orig);
-						addr_to_string(dst_str, icmp_packet->dst);
-
-						debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from %s to %s: ttl exceeded\n", src_str, dst_str);
-
-						/* send TTL exceeded if packet is an echo request (traceroute) */
-						if (icmp_packet->msg_type != ECHO_REQUEST)
-							continue;
-
-						/* get routing information */
-						spin_lock(&orig_hash_lock);
-						orig_node = ((struct orig_node *)hash_find(orig_hash, icmp_packet->orig));
-
-						if ((orig_node != NULL) && (orig_node->batman_if != NULL) && (orig_node->router != NULL)) {
-
-							memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
-							memcpy(icmp_packet->orig, ethhdr->h_dest, ETH_ALEN);
-							icmp_packet->msg_type = TTL_EXCEEDED;
-							icmp_packet->ttl = TTL;
-
-							send_raw_packet(packet_buff + sizeof(struct ethhdr),
-							                result - sizeof(struct ethhdr),
-							                orig_node->batman_if,
-							                orig_node->router->addr);
+	/* get routing information */
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	orig_node = ((struct orig_node *)
+		     hash_find(orig_hash, icmp_packet->orig));
+	ret = NET_RX_DROP;
+
+	if ((orig_node != NULL) &&
+	    (orig_node->batman_if != NULL) &&
+	    (orig_node->router != NULL)) {
+
+		/* don't lock while sending the packets ... we therefore
+		 * copy the required data before sending */
+		batman_if = orig_node->batman_if;
+		memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+		/* create a copy of the skb, if needed, to modify it. */
+		if (!skb_clone_writable(skb, sizeof(struct icmp_packet))) {
+			skb_old = skb;
+			skb = skb_copy(skb, GFP_ATOMIC);
+			if (!skb)
+				return NET_RX_DROP;
+			icmp_packet = (struct icmp_packet *) skb->data;
+			kfree_skb(skb_old);
+		}
 
-						}
+		memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
+		memcpy(icmp_packet->orig, ethhdr->h_dest, ETH_ALEN);
+		icmp_packet->msg_type = TTL_EXCEEDED;
+		icmp_packet->ttl = TTL;
 
-						spin_unlock(&orig_hash_lock);
-						continue;
+		send_skb_packet(skb, batman_if, dstaddr);
+		ret = NET_RX_SUCCESS;
 
-					}
+	} else
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
 
-					/* get routing information */
-					spin_lock(&orig_hash_lock);
-					orig_node = ((struct orig_node *)hash_find(orig_hash, icmp_packet->dst));
+	return ret;
+}
 
-					if ((orig_node != NULL) && (orig_node->batman_if != NULL) && (orig_node->router != NULL)) {
 
-						/* decrement ttl */
-						icmp_packet->ttl--;
+int recv_icmp_packet(struct sk_buff *skb)
+{
+	struct icmp_packet *icmp_packet;
+	struct ethhdr *ethhdr;
+	struct orig_node *orig_node;
+	struct sk_buff *skb_old;
+	struct batman_if *batman_if;
+	int hdr_size = sizeof(struct icmp_packet);
+	int ret;
+	unsigned long flags;
+	uint8_t dstaddr[ETH_ALEN];
+
+	/* drop packet if it has not necessary minimum size */
+	if (skb_headlen(skb) < hdr_size)
+		return NET_RX_DROP;
+
+	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+
+	/* packet with unicast indication but broadcast recipient */
+	if (is_bcast(ethhdr->h_dest))
+		return NET_RX_DROP;
+
+	/* packet with broadcast sender address */
+	if (is_bcast(ethhdr->h_source))
+		return NET_RX_DROP;
+
+	/* not for me */
+	if (!is_my_mac(ethhdr->h_dest))
+		return NET_RX_DROP;
+
+	icmp_packet = (struct icmp_packet *) skb->data;
+
+	/* packet for me */
+	if (is_my_mac(icmp_packet->dst))
+		return recv_my_icmp_packet(skb);
+
+	/* TTL exceeded */
+	if (icmp_packet->ttl < 2)
+		return recv_icmp_ttl_exceeded(skb);
+
+	ret = NET_RX_DROP;
+
+	/* get routing information */
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	orig_node = ((struct orig_node *)
+		     hash_find(orig_hash, icmp_packet->dst));
+
+	if ((orig_node != NULL) &&
+	    (orig_node->batman_if != NULL) &&
+	    (orig_node->router != NULL)) {
+
+		/* don't lock while sending the packets ... we therefore
+		 * copy the required data before sending */
+		batman_if = orig_node->batman_if;
+		memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+		/* create a copy of the skb, if needed, to modify it. */
+		if (!skb_clone_writable(skb, sizeof(struct icmp_packet))) {
+			skb_old = skb;
+			skb = skb_copy(skb, GFP_ATOMIC);
+			if (!skb)
+				return NET_RX_DROP;
+			icmp_packet = (struct icmp_packet *) skb->data;
+			kfree_skb(skb_old);
+		}
 
-						/* route it */
-						send_raw_packet(packet_buff + sizeof(struct ethhdr),
-						                result - sizeof(struct ethhdr),
-						                orig_node->batman_if,
-						                orig_node->router->addr);
-					}
+		/* decrement ttl */
+		icmp_packet->ttl--;
 
-					spin_unlock(&orig_hash_lock);
-					break;
+		/* route it */
+		send_skb_packet(skb, batman_if, dstaddr);
+		ret = NET_RX_SUCCESS;
 
-				/* unicast packet */
-				case BAT_UNICAST:
-					/* packet with unicast indication but broadcast recipient */
-					if (is_bcast(ethhdr->h_dest))
-						continue;
+	} else
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
 
-					/* packet with broadcast sender address */
-					if (is_bcast(ethhdr->h_source))
-						continue;
+	return ret;
+}
 
-					/* not for me */
-					if (!is_my_mac(ethhdr->h_dest))
-						continue;
+int recv_unicast_packet(struct sk_buff *skb)
+{
+	struct unicast_packet *unicast_packet;
+	struct orig_node *orig_node;
+	struct ethhdr *ethhdr;
+	struct batman_if *batman_if;
+	struct sk_buff *skb_old;
+	uint8_t dstaddr[ETH_ALEN];
+	int hdr_size = sizeof(struct unicast_packet);
+	int ret;
+	unsigned long flags;
 
-					/* drop packet if it has not necessary minimum size */
-					if (result < sizeof(struct ethhdr) + sizeof(struct unicast_packet))
-						continue;
+	/* drop packet if it has not necessary minimum size */
+	if (skb_headlen(skb) < hdr_size)
+		return NET_RX_DROP;
 
-					unicast_packet = (struct unicast_packet *)(packet_buff + sizeof(struct ethhdr));
+	ethhdr = (struct ethhdr *) skb_mac_header(skb);
 
-					/* packet for me */
-					if (is_my_mac(unicast_packet->dest)) {
+	/* packet with unicast indication but broadcast recipient */
+	if (is_bcast(ethhdr->h_dest))
+		return NET_RX_DROP;
 
-						interface_rx(soft_device, packet_buff + sizeof(struct ethhdr) + sizeof(struct unicast_packet), result - sizeof(struct ethhdr) - sizeof(struct unicast_packet));
-						continue;
+	/* packet with broadcast sender address */
+	if (is_bcast(ethhdr->h_source))
+		return NET_RX_DROP;
 
-					}
+	/* not for me */
+	if (!is_my_mac(ethhdr->h_dest))
+		return NET_RX_DROP;
 
-					/* TTL exceeded */
-					if (unicast_packet->ttl < 2) {
-						addr_to_string(src_str, ((struct ethhdr *)(unicast_packet + 1))->h_source);
-						addr_to_string(dst_str, unicast_packet->dest);
+	unicast_packet = (struct unicast_packet *) skb->data;
 
-						debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from %s to %s: ttl exceeded\n", src_str, dst_str);
-						continue;
-					}
+	/* packet for me */
+	if (is_my_mac(unicast_packet->dest)) {
+		interface_rx(skb, hdr_size);
+		return NET_RX_SUCCESS;
+	}
 
-					/* get routing information */
-					spin_lock(&orig_hash_lock);
-					orig_node = ((struct orig_node *)hash_find(orig_hash, unicast_packet->dest));
+	/* TTL exceeded */
+	if (unicast_packet->ttl < 2) {
+		printk(KERN_WARNING "batman-adv:Warning - can't forward unicast packet from %pM to %pM: ttl exceeded\n",
+		       ethhdr->h_source, unicast_packet->dest);
+		return NET_RX_DROP;
+	}
 
-					if ((orig_node != NULL) && (orig_node->batman_if != NULL) && (orig_node->router != NULL)) {
-						/* decrement ttl */
-						unicast_packet->ttl--;
+	ret = NET_RX_DROP;
+	/* get routing information */
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	orig_node = ((struct orig_node *)
+		     hash_find(orig_hash, unicast_packet->dest));
+
+	if ((orig_node != NULL) &&
+	    (orig_node->batman_if != NULL) &&
+	    (orig_node->router != NULL)) {
+
+		/* don't lock while sending the packets ... we therefore
+		 * copy the required data before sending */
+		batman_if = orig_node->batman_if;
+		memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+		/* create a copy of the skb, if needed, to modify it. */
+		if (!skb_clone_writable(skb, sizeof(struct unicast_packet))) {
+			skb_old = skb;
+			skb = skb_copy(skb, GFP_ATOMIC);
+			if (!skb)
+				return NET_RX_DROP;
+			unicast_packet = (struct unicast_packet *) skb->data;
+			kfree_skb(skb_old);
+		}
+		/* decrement ttl */
+		unicast_packet->ttl--;
 
-						/* route it */
-						send_raw_packet(packet_buff + sizeof(struct ethhdr),
-						                result - sizeof(struct ethhdr),
-						                orig_node->batman_if,
-						                orig_node->router->addr);
-					}
+		/* route it */
+		send_skb_packet(skb, batman_if, dstaddr);
+		ret = NET_RX_SUCCESS;
 
-					spin_unlock(&orig_hash_lock);
-					break;
+	} else
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
 
-				/* broadcast packet */
-				case BAT_BCAST:
-					/* packet with broadcast indication but unicast recipient */
-					if (!is_bcast(ethhdr->h_dest))
-						continue;
+	return ret;
+}
 
-					/* packet with broadcast sender address */
-					if (is_bcast(ethhdr->h_source))
-						continue;
 
-					/* drop packet if it has not necessary minimum size */
-					if (result < sizeof(struct ethhdr) + sizeof(struct bcast_packet))
-						continue;
+int recv_bcast_packet(struct sk_buff *skb)
+{
+	struct orig_node *orig_node;
+	struct bcast_packet *bcast_packet;
+	struct ethhdr *ethhdr;
+	int hdr_size = sizeof(struct bcast_packet);
+	unsigned long flags;
 
-					/* ignore broadcasts sent by myself */
-					if (is_my_mac(ethhdr->h_source))
-						continue;
+	/* drop packet if it has not necessary minimum size */
+	if (skb_headlen(skb) < hdr_size)
+		return NET_RX_DROP;
 
-					bcast_packet = (struct bcast_packet *)(packet_buff + sizeof(struct ethhdr));
+	ethhdr = (struct ethhdr *)skb_mac_header(skb);
 
-					/* ignore broadcasts originated by myself */
-					if (is_my_mac(bcast_packet->orig))
-						continue;
+	/* packet with broadcast indication but unicast recipient */
+	if (!is_bcast(ethhdr->h_dest))
+		return NET_RX_DROP;
 
-					spin_lock(&orig_hash_lock);
-					orig_node = ((struct orig_node *)hash_find(orig_hash, bcast_packet->orig));
+	/* packet with broadcast sender address */
+	if (is_bcast(ethhdr->h_source))
+		return NET_RX_DROP;
 
-					if (orig_node == NULL) {
-						spin_unlock(&orig_hash_lock);
-						continue;
-					}
+	/* ignore broadcasts sent by myself */
+	if (is_my_mac(ethhdr->h_source))
+		return NET_RX_DROP;
 
-					/* check flood history */
-					if (get_bit_status(orig_node->bcast_bits, orig_node->last_bcast_seqno, ntohs(bcast_packet->seqno))) {
-						spin_unlock(&orig_hash_lock);
-						continue;
-					}
+	bcast_packet = (struct bcast_packet *) skb->data;
 
-					/* mark broadcast in flood history */
-					if (bit_get_packet(orig_node->bcast_bits, ntohs(bcast_packet->seqno) - orig_node->last_bcast_seqno, 1))
-						orig_node->last_bcast_seqno = ntohs(bcast_packet->seqno);
+	/* ignore broadcasts originated by myself */
+	if (is_my_mac(bcast_packet->orig))
+		return NET_RX_DROP;
 
-					spin_unlock(&orig_hash_lock);
+	spin_lock_irqsave(&orig_hash_lock, flags);
+	orig_node = ((struct orig_node *)
+		     hash_find(orig_hash, bcast_packet->orig));
 
-					/* broadcast for me */
-					interface_rx(soft_device, packet_buff + sizeof(struct ethhdr) + sizeof(struct bcast_packet), result - sizeof(struct ethhdr) - sizeof(struct bcast_packet));
+	if (orig_node == NULL) {
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
+		return NET_RX_DROP;
+	}
 
-					/* rebroadcast packet */
-					add_bcast_packet_to_list(packet_buff + sizeof(struct ethhdr),
-									result - sizeof(struct ethhdr));
+	/* check flood history */
+	if (get_bit_status(orig_node->bcast_bits,
+			   orig_node->last_bcast_seqno,
+			   ntohs(bcast_packet->seqno))) {
+		spin_unlock_irqrestore(&orig_hash_lock, flags);
+		return NET_RX_DROP;
+	}
 
-					break;
+	/* mark broadcast in flood history */
+	if (bit_get_packet(orig_node->bcast_bits,
+			   ntohs(bcast_packet->seqno) -
+			   orig_node->last_bcast_seqno, 1))
+		orig_node->last_bcast_seqno = ntohs(bcast_packet->seqno);
 
-				/* vis packet */
-				case BAT_VIS:
-					/* drop if too short. */
-					if (result < sizeof(struct ethhdr) + sizeof(struct vis_packet))
-						continue;
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 
-					/* not for me */
-					if (!is_my_mac(ethhdr->h_dest))
-						continue;
+	/* rebroadcast packet */
+	add_bcast_packet_to_list(skb);
 
-					vis_packet = (struct vis_packet *)(packet_buff + sizeof(struct ethhdr));
-					vis_info_len = result  - sizeof(struct ethhdr) - sizeof(struct vis_packet);
+	/* broadcast for me */
+	interface_rx(skb, hdr_size);
 
-					/* ignore own packets */
-					if (is_my_mac(vis_packet->vis_orig))
-						continue;
+	return NET_RX_SUCCESS;
+}
 
-					if (is_my_mac(vis_packet->sender_orig))
-						continue;
+int recv_vis_packet(struct sk_buff *skb)
+{
+	struct vis_packet *vis_packet;
+	struct ethhdr *ethhdr;
+	int hdr_size = sizeof(struct vis_packet);
 
-					switch (vis_packet->vis_type) {
-					case VIS_TYPE_SERVER_SYNC:
-						receive_server_sync_packet(vis_packet, vis_info_len);
-						break;
+	if (skb_headlen(skb) < hdr_size)
+		return NET_RX_DROP;
 
-					case VIS_TYPE_CLIENT_UPDATE:
-						receive_client_update_packet(vis_packet, vis_info_len);
-						break;
+	vis_packet = (struct vis_packet *) skb->data;
+	ethhdr = (struct ethhdr *)skb_mac_header(skb);
 
-					default:	/* ignore unknown packet */
-						break;
-					}
+	/* not for me */
+	if (!is_my_mac(ethhdr->h_dest))
+		return NET_RX_DROP;
 
-					break;
-				}
+	/* ignore own packets */
+	if (is_my_mac(vis_packet->vis_orig))
+		return NET_RX_DROP;
 
-			}
+	if (is_my_mac(vis_packet->sender_orig))
+		return NET_RX_DROP;
 
-			if ((result < 0) && (result != -EAGAIN))
-				debug_log(LOG_TYPE_CRIT, "Could not receive packet from interface %s: %i\n", batman_if->dev, result);
+	switch (vis_packet->vis_type) {
+	case VIS_TYPE_SERVER_SYNC:
+		/* TODO: handle fragmented skbs properly */
+		receive_server_sync_packet(vis_packet, skb_headlen(skb));
+		break;
 
-			/* lock for the next iteration */
-			rcu_read_lock();
-		}
-		rcu_read_unlock();
+	case VIS_TYPE_CLIENT_UPDATE:
+		/* TODO: handle fragmented skbs properly */
+		receive_client_update_packet(vis_packet, skb_headlen(skb));
+		break;
 
+	default:	/* ignore unknown packet */
+		break;
 	}
-	kfree(packet_buff);
-
-	/* do not exit until kthread_stop() is actually called, otherwise it will wait for us
-	 * forever. */
-	while (!kthread_should_stop())
-		schedule();
-
-	return 0;
-}
-
-void batman_data_ready(struct sock *sk, int len)
-{
-	void (*data_ready)(struct sock *, int) = sk->sk_user_data;
-
-	data_ready(sk, len);
 
-	atomic_set(&data_ready_cond, 1);
-	wake_up_interruptible(&thread_wait);
+	/* We take a copy of the data in the packet, so we should
+	   always free the skbuf. */
+	return NET_RX_DROP;
 }
-

drivers/staging/batman-adv/routing.h

@@ -22,13 +22,18 @@
 #include "types.h"
 
 extern wait_queue_head_t thread_wait;
-extern atomic_t exit_cond;
 
-int originator_init(void);
-void free_orig_node(void *data);
-void originator_free(void);
 void slide_own_bcast_window(struct batman_if *batman_if);
-void batman_data_ready(struct sock *sk, int len);
-void purge_orig(struct work_struct *work);
-int packet_recv_thread(void *data);
-void receive_bat_packet(struct ethhdr *ethhdr, struct batman_packet *batman_packet, unsigned char *hna_buff, int hna_buff_len, struct batman_if *if_incoming);
+void receive_bat_packet(struct ethhdr *ethhdr,
+				struct batman_packet *batman_packet,
+				unsigned char *hna_buff, int hna_buff_len,
+				struct batman_if *if_incoming);
+void update_routes(struct orig_node *orig_node,
+				struct neigh_node *neigh_node,
+				unsigned char *hna_buff, int hna_buff_len);
+int recv_icmp_packet(struct sk_buff *skb);
+int recv_unicast_packet(struct sk_buff *skb);
+int recv_bcast_packet(struct sk_buff *skb);
+int recv_vis_packet(struct sk_buff *skb);
+int recv_bat_packet(struct sk_buff *skb,
+				struct batman_if *batman_if);

drivers/staging/batman-adv/send.c

@@ -21,16 +21,14 @@
 
 #include "main.h"
 #include "send.h"
-#include "log.h"
 #include "routing.h"
 #include "translation-table.h"
+#include "soft-interface.h"
 #include "hard-interface.h"
 #include "types.h"
 #include "vis.h"
 #include "aggregation.h"
 
-#include "compat.h"
-
 /* apply hop penalty for a normal link */
 static uint8_t hop_penalty(const uint8_t tq)
 {
@@ -59,51 +57,69 @@ static unsigned long forward_send_time(void)
 	return send_time;
 }
 
-/* sends a raw packet. */
-void send_raw_packet(unsigned char *pack_buff, int pack_buff_len,
-		     struct batman_if *batman_if, uint8_t *dst_addr)
+/* send out an already prepared packet to the given address via the
+ * specified batman interface */
+int send_skb_packet(struct sk_buff *skb,
+				struct batman_if *batman_if,
+				uint8_t *dst_addr)
 {
 	struct ethhdr *ethhdr;
-	struct sk_buff *skb;
-	int retval;
-	char *data;
 
 	if (batman_if->if_active != IF_ACTIVE)
-		return;
+		goto send_skb_err;
+
+	if (unlikely(!batman_if->net_dev))
+		goto send_skb_err;
 
 	if (!(batman_if->net_dev->flags & IFF_UP)) {
-		debug_log(LOG_TYPE_WARN,
-		         "Interface %s is not up - can't send packet via that interface (IF_TO_BE_DEACTIVATED was here) !\n",
-		          batman_if->dev);
-		return;
+		printk(KERN_WARNING
+		       "batman-adv:Interface %s is not up - can't send packet via that interface!\n",
+		       batman_if->dev);
+		goto send_skb_err;
 	}
 
-	skb = dev_alloc_skb(pack_buff_len + sizeof(struct ethhdr));
-	if (!skb)
-		return;
-	data = skb_put(skb, pack_buff_len + sizeof(struct ethhdr));
+	/* push to the ethernet header. */
+	if (my_skb_push(skb, sizeof(struct ethhdr)) < 0)
+		goto send_skb_err;
 
-	memcpy(data + sizeof(struct ethhdr), pack_buff, pack_buff_len);
+	skb_reset_mac_header(skb);
 
-	ethhdr = (struct ethhdr *) data;
+	ethhdr = (struct ethhdr *) skb_mac_header(skb);
 	memcpy(ethhdr->h_source, batman_if->net_dev->dev_addr, ETH_ALEN);
 	memcpy(ethhdr->h_dest, dst_addr, ETH_ALEN);
 	ethhdr->h_proto = __constant_htons(ETH_P_BATMAN);
 
-	skb_reset_mac_header(skb);
 	skb_set_network_header(skb, ETH_HLEN);
 	skb->priority = TC_PRIO_CONTROL;
 	skb->protocol = __constant_htons(ETH_P_BATMAN);
+
 	skb->dev = batman_if->net_dev;
 
 	/* dev_queue_xmit() returns a negative result on error.	 However on
 	 * congestion and traffic shaping, it drops and returns NET_XMIT_DROP
 	 * (which is > 0). This will not be treated as an error. */
-	retval = dev_queue_xmit(skb);
-	if (retval < 0)
-		debug_log(LOG_TYPE_CRIT,
-		          "Can't write to raw socket (IF_TO_BE_DEACTIVATED was here): %i\n",
-		          retval);
+
+	return dev_queue_xmit(skb);
+send_skb_err:
+	kfree_skb(skb);
+	return NET_XMIT_DROP;
+}
+
+/* sends a raw packet. */
+void send_raw_packet(unsigned char *pack_buff, int pack_buff_len,
+		     struct batman_if *batman_if, uint8_t *dst_addr)
+{
+	struct sk_buff *skb;
+	char *data;
+
+	skb = dev_alloc_skb(pack_buff_len + sizeof(struct ethhdr));
+	if (!skb)
+		return;
+	data = skb_put(skb, pack_buff_len + sizeof(struct ethhdr));
+	memcpy(data + sizeof(struct ethhdr), pack_buff, pack_buff_len);
+	/* pull back to the batman "network header" */
+	skb_pull(skb, sizeof(struct ethhdr));
+	send_skb_packet(skb, batman_if, dst_addr);
 }
 
 /* Send a packet to a given interface */
@@ -114,7 +130,6 @@ static void send_packet_to_if(struct forw_packet *forw_packet,
 	uint8_t packet_num;
 	int16_t buff_pos;
 	struct batman_packet *batman_packet;
-	char orig_str[ETH_STR_LEN];
 
 	if (batman_if->if_active != IF_ACTIVE)
 		return;
@@ -136,19 +151,18 @@ static void send_packet_to_if(struct forw_packet *forw_packet,
 		else
 			batman_packet->flags &= ~DIRECTLINK;
 
-		addr_to_string(orig_str, batman_packet->orig);
 		fwd_str = (packet_num > 0 ? "Forwarding" : (forw_packet->own ?
 							    "Sending own" :
 							    "Forwarding"));
-		debug_log(LOG_TYPE_BATMAN,
-			  "%s %spacket (originator %s, seqno %d, TQ %d, TTL %d, IDF %s) on interface %s [%s]\n",
-			  fwd_str,
-			  (packet_num > 0 ? "aggregated " : ""),
-			  orig_str, ntohs(batman_packet->seqno),
-			  batman_packet->tq, batman_packet->ttl,
-			  (batman_packet->flags & DIRECTLINK ?
-			   "on" : "off"),
-			  batman_if->dev, batman_if->addr_str);
+		bat_dbg(DBG_BATMAN,
+			"%s %spacket (originator %pM, seqno %d, TQ %d, TTL %d, IDF %s) on interface %s [%s]\n",
+			fwd_str,
+			(packet_num > 0 ? "aggregated " : ""),
+			batman_packet->orig, ntohs(batman_packet->seqno),
+			batman_packet->tq, batman_packet->ttl,
+			(batman_packet->flags & DIRECTLINK ?
+			 "on" : "off"),
+			batman_if->dev, batman_if->addr_str);
 
 		buff_pos += sizeof(struct batman_packet) +
 			(batman_packet->num_hna * ETH_ALEN);
@@ -168,32 +182,28 @@ static void send_packet(struct forw_packet *forw_packet)
 	struct batman_if *batman_if;
 	struct batman_packet *batman_packet =
 		(struct batman_packet *)(forw_packet->packet_buff);
-	char orig_str[ETH_STR_LEN];
 	unsigned char directlink = (batman_packet->flags & DIRECTLINK ? 1 : 0);
 
 	if (!forw_packet->if_incoming) {
-		debug_log(LOG_TYPE_CRIT,
-			  "Error - can't forward packet: incoming iface not specified\n");
+		printk(KERN_ERR "batman-adv: Error - can't forward packet: incoming iface not specified\n");
 		return;
 	}
 
 	if (forw_packet->if_incoming->if_active != IF_ACTIVE)
 		return;
 
-	addr_to_string(orig_str, batman_packet->orig);
-
 	/* multihomed peer assumed */
 	/* non-primary OGMs are only broadcasted on their interface */
 	if ((directlink && (batman_packet->ttl == 1)) ||
 	    (forw_packet->own && (forw_packet->if_incoming->if_num > 0))) {
 
 		/* FIXME: what about aggregated packets ? */
-		debug_log(LOG_TYPE_BATMAN,
-			  "%s packet (originator %s, seqno %d, TTL %d) on interface %s [%s]\n",
-			  (forw_packet->own ? "Sending own" : "Forwarding"),
-			  orig_str, ntohs(batman_packet->seqno),
-			  batman_packet->ttl, forw_packet->if_incoming->dev,
-			  forw_packet->if_incoming->addr_str);
+		bat_dbg(DBG_BATMAN,
+			"%s packet (originator %pM, seqno %d, TTL %d) on interface %s [%s]\n",
+			(forw_packet->own ? "Sending own" : "Forwarding"),
+			batman_packet->orig, ntohs(batman_packet->seqno),
+			batman_packet->ttl, forw_packet->if_incoming->dev,
+			forw_packet->if_incoming->addr_str);
 
 		send_raw_packet(forw_packet->packet_buff,
 				forw_packet->packet_len,
@@ -238,6 +248,7 @@ void schedule_own_packet(struct batman_if *batman_if)
 {
 	unsigned long send_time;
 	struct batman_packet *batman_packet;
+	int vis_server = atomic_read(&vis_mode);
 
 	/**
 	 * the interface gets activated here to avoid race conditions between
@@ -262,7 +273,7 @@ void schedule_own_packet(struct batman_if *batman_if)
 	/* change sequence number to network order */
 	batman_packet->seqno = htons((uint16_t)atomic_read(&batman_if->seqno));
 
-	if (is_vis_server())
+	if (vis_server == VIS_TYPE_SERVER_SYNC)
 		batman_packet->flags = VIS_SERVER;
 	else
 		batman_packet->flags = 0;
@@ -286,7 +297,7 @@ void schedule_forward_packet(struct orig_node *orig_node,
 	unsigned long send_time;
 
 	if (batman_packet->ttl <= 1) {
-		debug_log(LOG_TYPE_BATMAN, "ttl exceeded \n");
+		bat_dbg(DBG_BATMAN, "ttl exceeded \n");
 		return;
 	}
 
@@ -314,9 +325,9 @@ void schedule_forward_packet(struct orig_node *orig_node,
 	/* apply hop penalty */
 	batman_packet->tq = hop_penalty(batman_packet->tq);
 
-	debug_log(LOG_TYPE_BATMAN, "Forwarding packet: tq_orig: %i, tq_avg: %i, tq_forw: %i, ttl_orig: %i, ttl_forw: %i \n",
-		  in_tq, tq_avg, batman_packet->tq, in_ttl - 1,
-		  batman_packet->ttl);
+	bat_dbg(DBG_BATMAN, "Forwarding packet: tq_orig: %i, tq_avg: %i, tq_forw: %i, ttl_orig: %i, ttl_forw: %i \n",
+		in_tq, tq_avg, batman_packet->tq, in_ttl - 1,
+		batman_packet->ttl);
 
 	batman_packet->seqno = htons(batman_packet->seqno);
 
@@ -333,6 +344,8 @@ void schedule_forward_packet(struct orig_node *orig_node,
 
 static void forw_packet_free(struct forw_packet *forw_packet)
 {
+	if (forw_packet->skb)
+		kfree_skb(forw_packet->skb);
 	kfree(forw_packet->packet_buff);
 	kfree(forw_packet);
 }
@@ -340,12 +353,13 @@ static void forw_packet_free(struct forw_packet *forw_packet)
 static void _add_bcast_packet_to_list(struct forw_packet *forw_packet,
 				      unsigned long send_time)
 {
+	unsigned long flags;
 	INIT_HLIST_NODE(&forw_packet->list);
 
 	/* add new packet to packet list */
-	spin_lock(&forw_bcast_list_lock);
+	spin_lock_irqsave(&forw_bcast_list_lock, flags);
 	hlist_add_head(&forw_packet->list, &forw_bcast_list);
-	spin_unlock(&forw_bcast_list_lock);
+	spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
 
 	/* start timer for this packet */
 	INIT_DELAYED_WORK(&forw_packet->delayed_work,
@@ -354,7 +368,7 @@ static void _add_bcast_packet_to_list(struct forw_packet *forw_packet,
 			   send_time);
 }
 
-void add_bcast_packet_to_list(unsigned char *packet_buff, int packet_len)
+void add_bcast_packet_to_list(struct sk_buff *skb)
 {
 	struct forw_packet *forw_packet;
 
@@ -362,14 +376,16 @@ void add_bcast_packet_to_list(unsigned char *packet_buff, int packet_len)
 	if (!forw_packet)
 		return;
 
-	forw_packet->packet_buff = kmalloc(packet_len, GFP_ATOMIC);
-	if (!forw_packet->packet_buff) {
+	skb = skb_copy(skb, GFP_ATOMIC);
+	if (!skb) {
 		kfree(forw_packet);
 		return;
 	}
 
-	forw_packet->packet_len = packet_len;
-	memcpy(forw_packet->packet_buff, packet_buff, forw_packet->packet_len);
+	skb_reset_mac_header(skb);
+
+	forw_packet->skb = skb;
+	forw_packet->packet_buff = NULL;
 
 	/* how often did we send the bcast packet ? */
 	forw_packet->num_packets = 0;
@@ -384,16 +400,20 @@ void send_outstanding_bcast_packet(struct work_struct *work)
 		container_of(work, struct delayed_work, work);
 	struct forw_packet *forw_packet =
 		container_of(delayed_work, struct forw_packet, delayed_work);
+	unsigned long flags;
+	struct sk_buff *skb1;
 
-	spin_lock(&forw_bcast_list_lock);
+	spin_lock_irqsave(&forw_bcast_list_lock, flags);
 	hlist_del(&forw_packet->list);
-	spin_unlock(&forw_bcast_list_lock);
+	spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
 
 	/* rebroadcast packet */
 	rcu_read_lock();
 	list_for_each_entry_rcu(batman_if, &if_list, list) {
-		send_raw_packet(forw_packet->packet_buff,
-				forw_packet->packet_len,
+		/* send a copy of the saved skb */
+		skb1 = skb_copy(forw_packet->skb, GFP_ATOMIC);
+		if (skb1)
+			send_skb_packet(skb1,
 				batman_if, broadcastAddr);
 	}
 	rcu_read_unlock();
@@ -415,10 +435,11 @@ void send_outstanding_bat_packet(struct work_struct *work)
 		container_of(work, struct delayed_work, work);
 	struct forw_packet *forw_packet =
 		container_of(delayed_work, struct forw_packet, delayed_work);
+	unsigned long flags;
 
-	spin_lock(&forw_bat_list_lock);
+	spin_lock_irqsave(&forw_bat_list_lock, flags);
 	hlist_del(&forw_packet->list);
-	spin_unlock(&forw_bat_list_lock);
+	spin_unlock_irqrestore(&forw_bat_list_lock, flags);
 
 	send_packet(forw_packet);
 
@@ -438,38 +459,39 @@ void purge_outstanding_packets(void)
 {
 	struct forw_packet *forw_packet;
 	struct hlist_node *tmp_node, *safe_tmp_node;
+	unsigned long flags;
 
-	debug_log(LOG_TYPE_BATMAN, "purge_outstanding_packets()\n");
+	bat_dbg(DBG_BATMAN, "purge_outstanding_packets()\n");
 
 	/* free bcast list */
-	spin_lock(&forw_bcast_list_lock);
+	spin_lock_irqsave(&forw_bcast_list_lock, flags);
 	hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node,
 				  &forw_bcast_list, list) {
 
-		spin_unlock(&forw_bcast_list_lock);
+		spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
 
 		/**
 		 * send_outstanding_bcast_packet() will lock the list to
 		 * delete the item from the list
 		 */
 		cancel_delayed_work_sync(&forw_packet->delayed_work);
-		spin_lock(&forw_bcast_list_lock);
+		spin_lock_irqsave(&forw_bcast_list_lock, flags);
 	}
-	spin_unlock(&forw_bcast_list_lock);
+	spin_unlock_irqrestore(&forw_bcast_list_lock, flags);
 
 	/* free batman packet list */
-	spin_lock(&forw_bat_list_lock);
+	spin_lock_irqsave(&forw_bat_list_lock, flags);
 	hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node,
 				  &forw_bat_list, list) {
 
-		spin_unlock(&forw_bat_list_lock);
+		spin_unlock_irqrestore(&forw_bat_list_lock, flags);
 
 		/**
 		 * send_outstanding_bat_packet() will lock the list to
 		 * delete the item from the list
 		 */
 		cancel_delayed_work_sync(&forw_packet->delayed_work);
-		spin_lock(&forw_bat_list_lock);
+		spin_lock_irqsave(&forw_bat_list_lock, flags);
 	}
-	spin_unlock(&forw_bat_list_lock);
+	spin_unlock_irqrestore(&forw_bat_list_lock, flags);
 }

drivers/staging/batman-adv/send.h

@@ -22,6 +22,9 @@
 #include "types.h"
 
 void send_own_packet_work(struct work_struct *work);
+int send_skb_packet(struct sk_buff *skb,
+				struct batman_if *batman_if,
+				uint8_t *dst_addr);
 void send_raw_packet(unsigned char *pack_buff, int pack_buff_len,
 		     struct batman_if *batman_if, uint8_t *dst_addr);
 void schedule_own_packet(struct batman_if *batman_if);
@@ -30,7 +33,7 @@ void schedule_forward_packet(struct orig_node *orig_node,
 			     struct batman_packet *batman_packet,
 			     uint8_t directlink, int hna_buff_len,
 			     struct batman_if *if_outgoing);
-void add_bcast_packet_to_list(unsigned char *packet_buff, int packet_len);
+void add_bcast_packet_to_list(struct sk_buff *skb);
 void send_outstanding_bcast_packet(struct work_struct *work);
 void send_outstanding_bat_packet(struct work_struct *work);
 void purge_outstanding_packets(void);

drivers/staging/batman-adv/soft-interface.c

@@ -24,18 +24,15 @@
 #include "hard-interface.h"
 #include "send.h"
 #include "translation-table.h"
-#include "log.h"
 #include "types.h"
 #include "hash.h"
 #include <linux/ethtool.h>
 #include <linux/etherdevice.h>
-#include "compat.h"
 
 static uint16_t bcast_seqno = 1; /* give own bcast messages seq numbers to avoid
 				  * broadcast storms */
 static int32_t skb_packets;
 static int32_t skb_bad_packets;
-static int32_t lock_dropped;
 
 unsigned char mainIfAddr[ETH_ALEN];
 static unsigned char mainIfAddr_default[ETH_ALEN];
@@ -68,12 +65,12 @@ int main_if_was_up(void)
 	return (memcmp(mainIfAddr, mainIfAddr_default, ETH_ALEN) != 0 ? 1 : 0);
 }
 
-static int my_skb_push(struct sk_buff *skb, unsigned int len)
+int my_skb_push(struct sk_buff *skb, unsigned int len)
 {
 	int result = 0;
 
 	skb_packets++;
-	if (skb->data - len < skb->head) {
+	if (skb_headroom(skb) < len) {
 		skb_bad_packets++;
 		result = pskb_expand_head(skb, len, 0, GFP_ATOMIC);
 
@@ -122,7 +119,7 @@ void interface_setup(struct net_device *dev)
 
 	/* generate random address */
 	random_ether_addr(dev_addr);
-	memcpy(dev->dev_addr, dev_addr, sizeof(dev->dev_addr));
+	memcpy(dev->dev_addr, dev_addr, ETH_ALEN);
 
 	SET_ETHTOOL_OPS(dev, &bat_ethtool_ops);
 
@@ -147,9 +144,18 @@ struct net_device_stats *interface_stats(struct net_device *dev)
 	return &priv->stats;
 }
 
-int interface_set_mac_addr(struct net_device *dev, void *addr)
+int interface_set_mac_addr(struct net_device *dev, void *p)
 {
-	return -EBUSY;
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	hna_local_remove(dev->dev_addr, "mac address changed");
+	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+	hna_local_add(dev->dev_addr);
+
+	return 0;
 }
 
 int interface_change_mtu(struct net_device *dev, int new_mtu)
@@ -170,7 +176,10 @@ int interface_tx(struct sk_buff *skb, struct net_device *dev)
 	struct orig_node *orig_node;
 	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
 	struct bat_priv *priv = netdev_priv(dev);
+	struct batman_if *batman_if;
+	uint8_t dstaddr[6];
 	int data_len = skb->len;
+	unsigned long flags;
 
 	if (atomic_read(&module_state) != MODULE_ACTIVE)
 		goto dropped;
@@ -186,7 +195,6 @@ int interface_tx(struct sk_buff *skb, struct net_device *dev)
 			goto dropped;
 
 		bcast_packet = (struct bcast_packet *)skb->data;
-
 		bcast_packet->version = COMPAT_VERSION;
 
 		/* batman packet type: broadcast */
@@ -195,27 +203,21 @@ int interface_tx(struct sk_buff *skb, struct net_device *dev)
 		/* hw address of first interface is the orig mac because only
 		 * this mac is known throughout the mesh */
 		memcpy(bcast_packet->orig, mainIfAddr, ETH_ALEN);
+
 		/* set broadcast sequence number */
 		bcast_packet->seqno = htons(bcast_seqno);
 
 		bcast_seqno++;
 
 		/* broadcast packet */
-		add_bcast_packet_to_list(skb->data, skb->len);
+		add_bcast_packet_to_list(skb);
+		/* a copy is stored in the bcast list, therefore removing
+		 * the original skb. */
+		kfree_skb(skb);
 
 	/* unicast packet */
 	} else {
-
-		/* simply spin_lock()ing can deadlock when the lock is already
-		 * hold. */
-		/* TODO: defer the work in a working queue instead of
-		 * dropping */
-		if (!spin_trylock(&orig_hash_lock)) {
-			lock_dropped++;
-			debug_log(LOG_TYPE_NOTICE, "%d packets dropped because lock was hold\n", lock_dropped);
-			goto dropped;
-		}
-
+		spin_lock_irqsave(&orig_hash_lock, flags);
 		/* get routing information */
 		orig_node = ((struct orig_node *)hash_find(orig_hash,
 							   ethhdr->h_dest));
@@ -244,14 +246,17 @@ int interface_tx(struct sk_buff *skb, struct net_device *dev)
 			if (orig_node->batman_if->if_active != IF_ACTIVE)
 				goto unlock;
 
-			send_raw_packet(skb->data, skb->len,
-					orig_node->batman_if,
-					orig_node->router->addr);
+			/* don't lock while sending the packets ... we therefore
+			 * copy the required data before sending */
+
+			batman_if = orig_node->batman_if;
+			memcpy(dstaddr, orig_node->router->addr, ETH_ALEN);
+			spin_unlock_irqrestore(&orig_hash_lock, flags);
+
+			send_skb_packet(skb, batman_if, dstaddr);
 		} else {
 			goto unlock;
 		}
-
-		spin_unlock(&orig_hash_lock);
 	}
 
 	priv->stats.tx_packets++;
@@ -259,42 +264,44 @@ int interface_tx(struct sk_buff *skb, struct net_device *dev)
 	goto end;
 
 unlock:
-	spin_unlock(&orig_hash_lock);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 dropped:
 	priv->stats.tx_dropped++;
 end:
-	kfree_skb(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
-void interface_rx(struct net_device *dev, void *packet, int packet_len)
+void interface_rx(struct sk_buff *skb, int hdr_size)
 {
-	struct sk_buff *skb;
+	struct net_device *dev = soft_device;
 	struct bat_priv *priv = netdev_priv(dev);
 
-	skb = dev_alloc_skb(packet_len);
-
-	if (!skb) {
-		priv->stats.rx_dropped++;
-		goto out;
+	/* check if enough space is available for pulling, and pull */
+	if (!pskb_may_pull(skb, hdr_size)) {
+		kfree_skb(skb);
+		return;
 	}
+	skb_pull_rcsum(skb, hdr_size);
+/*	skb_set_mac_header(skb, -sizeof(struct ethhdr));*/
 
-	memcpy(skb_put(skb, packet_len), packet, packet_len);
-
-	/* Write metadata, and then pass to the receive level */
 	skb->dev = dev;
 	skb->protocol = eth_type_trans(skb, dev);
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+	/* should not be neccesary anymore as we use skb_pull_rcsum()
+	 * TODO: please verify this and remove this TODO
+	 * -- Dec 21st 2009, Simon Wunderlich */
+
+/*	skb->ip_summed = CHECKSUM_UNNECESSARY;*/
+
+	/* TODO: set skb->pkt_type to PACKET_BROADCAST, PACKET_MULTICAST,
+	 * PACKET_OTHERHOST or PACKET_HOST */
 
 	priv->stats.rx_packets++;
-	priv->stats.rx_bytes += packet_len;
+	priv->stats.rx_bytes += skb->len;
 
 	dev->last_rx = jiffies;
 
 	netif_rx(skb);
-
-out:
-	return;
 }
 
 /* ethtool */
@@ -330,7 +337,6 @@ static u32 bat_get_msglevel(struct net_device *dev)
 
 static void bat_set_msglevel(struct net_device *dev, u32 value)
 {
-	return;
 }
 
 static u32 bat_get_link(struct net_device *dev)

drivers/staging/batman-adv/soft-interface.h

@@ -28,6 +28,7 @@ struct net_device_stats *interface_stats(struct net_device *dev);
 int interface_set_mac_addr(struct net_device *dev, void *addr);
 int interface_change_mtu(struct net_device *dev, int new_mtu);
 int interface_tx(struct sk_buff *skb, struct net_device *dev);
-void interface_rx(struct net_device *dev, void *packet, int packet_len);
+void interface_rx(struct sk_buff *skb, int hdr_size);
+int my_skb_push(struct sk_buff *skb, unsigned int len);
 
 extern unsigned char mainIfAddr[];

drivers/staging/batman-adv/translation-table.c

@@ -21,11 +21,9 @@
 
 #include "main.h"
 #include "translation-table.h"
-#include "log.h"
 #include "soft-interface.h"
 #include "types.h"
 #include "hash.h"
-#include "compat.h"
 
 struct hashtable_t *hna_local_hash;
 static struct hashtable_t *hna_global_hash;
@@ -62,7 +60,6 @@ void hna_local_add(uint8_t *addr)
 	struct hna_local_entry *hna_local_entry;
 	struct hna_global_entry *hna_global_entry;
 	struct hashtable_t *swaphash;
-	char hna_str[ETH_STR_LEN];
 	unsigned long flags;
 
 	spin_lock_irqsave(&hna_local_hash_lock, flags);
@@ -75,19 +72,17 @@ void hna_local_add(uint8_t *addr)
 		return;
 	}
 
-	addr_to_string(hna_str, addr);
-
 	/* only announce as many hosts as possible in the batman-packet and
 	   space in batman_packet->num_hna That also should give a limit to
 	   MAC-flooding. */
 	if ((num_hna + 1 > (ETH_DATA_LEN - BAT_PACKET_LEN) / ETH_ALEN) ||
 	    (num_hna + 1 > 255)) {
-		debug_log(LOG_TYPE_ROUTES, "Can't add new local hna entry (%s): number of local hna entries exceeds packet size \n", hna_str);
+		bat_dbg(DBG_ROUTES, "Can't add new local hna entry (%pM): number of local hna entries exceeds packet size \n", addr);
 		return;
 	}
 
-	debug_log(LOG_TYPE_ROUTES, "Creating new local hna entry: %s \n",
-		  hna_str);
+	bat_dbg(DBG_ROUTES, "Creating new local hna entry: %pM \n",
+		addr);
 
 	hna_local_entry = kmalloc(sizeof(struct hna_local_entry), GFP_ATOMIC);
 	if (!hna_local_entry)
@@ -113,7 +108,7 @@ void hna_local_add(uint8_t *addr)
 				       hna_local_hash->size * 2);
 
 		if (swaphash == NULL)
-			debug_log(LOG_TYPE_CRIT, "Couldn't resize local hna hash table \n");
+			printk(KERN_ERR "batman-adv:Couldn't resize local hna hash table \n");
 		else
 			hna_local_hash = swaphash;
 	}
@@ -135,18 +130,18 @@ void hna_local_add(uint8_t *addr)
 int hna_local_fill_buffer(unsigned char *buff, int buff_len)
 {
 	struct hna_local_entry *hna_local_entry;
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	int i = 0;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hna_local_hash_lock, flags);
 
-	while (NULL != (hashit = hash_iterate(hna_local_hash, hashit))) {
+	while (hash_iterate(hna_local_hash, &hashit)) {
 
 		if (buff_len < (i + 1) * ETH_ALEN)
 			break;
 
-		hna_local_entry = hashit->bucket->data;
+		hna_local_entry = hashit.bucket->data;
 		memcpy(buff + (i * ETH_ALEN), hna_local_entry->addr, ETH_ALEN);
 
 		i++;
@@ -164,18 +159,18 @@ int hna_local_fill_buffer(unsigned char *buff, int buff_len)
 int hna_local_fill_buffer_text(unsigned char *buff, int buff_len)
 {
 	struct hna_local_entry *hna_local_entry;
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	int bytes_written = 0;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hna_local_hash_lock, flags);
 
-	while (NULL != (hashit = hash_iterate(hna_local_hash, hashit))) {
+	while (hash_iterate(hna_local_hash, &hashit)) {
 
 		if (buff_len < bytes_written + ETH_STR_LEN + 4)
 			break;
 
-		hna_local_entry = hashit->bucket->data;
+		hna_local_entry = hashit.bucket->data;
 
 		bytes_written += snprintf(buff + bytes_written, ETH_STR_LEN + 4,
 					  " * %02x:%02x:%02x:%02x:%02x:%02x\n",
@@ -202,27 +197,39 @@ static void _hna_local_del(void *data)
 static void hna_local_del(struct hna_local_entry *hna_local_entry,
 			  char *message)
 {
-	char hna_str[ETH_STR_LEN];
-
-	addr_to_string(hna_str, hna_local_entry->addr);
-	debug_log(LOG_TYPE_ROUTES, "Deleting local hna entry (%s): %s \n",
-		  hna_str, message);
+	bat_dbg(DBG_ROUTES, "Deleting local hna entry (%pM): %s \n",
+		hna_local_entry->addr, message);
 
 	hash_remove(hna_local_hash, hna_local_entry->addr);
 	_hna_local_del(hna_local_entry);
 }
 
+void hna_local_remove(uint8_t *addr, char *message)
+{
+	struct hna_local_entry *hna_local_entry;
+	unsigned long flags;
+
+	spin_lock_irqsave(&hna_local_hash_lock, flags);
+
+	hna_local_entry = (struct hna_local_entry *)
+		hash_find(hna_local_hash, addr);
+	if (hna_local_entry)
+		hna_local_del(hna_local_entry, message);
+
+	spin_unlock_irqrestore(&hna_local_hash_lock, flags);
+}
+
 void hna_local_purge(struct work_struct *work)
 {
 	struct hna_local_entry *hna_local_entry;
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	unsigned long flags;
 	unsigned long timeout;
 
 	spin_lock_irqsave(&hna_local_hash_lock, flags);
 
-	while (NULL != (hashit = hash_iterate(hna_local_hash, hashit))) {
-		hna_local_entry = hashit->bucket->data;
+	while (hash_iterate(hna_local_hash, &hashit)) {
+		hna_local_entry = hashit.bucket->data;
 
 		timeout = hna_local_entry->last_seen +
 			((LOCAL_HNA_TIMEOUT / 1000) * HZ);
@@ -264,13 +271,10 @@ void hna_global_add_orig(struct orig_node *orig_node,
 	struct hna_global_entry *hna_global_entry;
 	struct hna_local_entry *hna_local_entry;
 	struct hashtable_t *swaphash;
-	char hna_str[ETH_STR_LEN], orig_str[ETH_STR_LEN];
 	int hna_buff_count = 0;
 	unsigned long flags;
 	unsigned char *hna_ptr;
 
-	addr_to_string(orig_str, orig_node->orig);
-
 	while ((hna_buff_count + 1) * ETH_ALEN <= hna_buff_len) {
 		spin_lock_irqsave(&hna_global_hash_lock, flags);
 
@@ -290,8 +294,9 @@ void hna_global_add_orig(struct orig_node *orig_node,
 
 			memcpy(hna_global_entry->addr, hna_ptr, ETH_ALEN);
 
-			addr_to_string(hna_str, hna_global_entry->addr);
-			debug_log(LOG_TYPE_ROUTES, "Creating new global hna entry: %s (via %s)\n", hna_str, orig_str);
+			bat_dbg(DBG_ROUTES,
+				"Creating new global hna entry: %pM (via %pM)\n",
+				hna_global_entry->addr, orig_node->orig);
 
 			spin_lock_irqsave(&hna_global_hash_lock, flags);
 			hash_add(hna_global_hash, hna_global_entry);
@@ -316,14 +321,16 @@ void hna_global_add_orig(struct orig_node *orig_node,
 		hna_buff_count++;
 	}
 
-	orig_node->hna_buff_len = hna_buff_len;
+	/* initialize, and overwrite if malloc succeeds */
+	orig_node->hna_buff = NULL;
+	orig_node->hna_buff_len = 0;
 
-	if (orig_node->hna_buff_len > 0) {
-		orig_node->hna_buff = kmalloc(orig_node->hna_buff_len,
-					      GFP_ATOMIC);
-		memcpy(orig_node->hna_buff, hna_buff, orig_node->hna_buff_len);
-	} else {
-		orig_node->hna_buff = NULL;
+	if (hna_buff_len > 0) {
+		orig_node->hna_buff = kmalloc(hna_buff_len, GFP_ATOMIC);
+		if (orig_node->hna_buff) {
+			memcpy(orig_node->hna_buff, hna_buff, hna_buff_len);
+			orig_node->hna_buff_len = hna_buff_len;
+		}
 	}
 
 	spin_lock_irqsave(&hna_global_hash_lock, flags);
@@ -333,7 +340,7 @@ void hna_global_add_orig(struct orig_node *orig_node,
 				       hna_global_hash->size * 2);
 
 		if (swaphash == NULL)
-			debug_log(LOG_TYPE_CRIT, "Couldn't resize global hna hash table \n");
+			printk(KERN_ERR "batman-adv:Couldn't resize global hna hash table \n");
 		else
 			hna_global_hash = swaphash;
 	}
@@ -344,17 +351,17 @@ void hna_global_add_orig(struct orig_node *orig_node,
 int hna_global_fill_buffer_text(unsigned char *buff, int buff_len)
 {
 	struct hna_global_entry *hna_global_entry;
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	int bytes_written = 0;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hna_global_hash_lock, flags);
 
-	while (NULL != (hashit = hash_iterate(hna_global_hash, hashit))) {
+	while (hash_iterate(hna_global_hash, &hashit)) {
 		if (buff_len < bytes_written + (2 * ETH_STR_LEN) + 10)
 			break;
 
-		hna_global_entry = hashit->bucket->data;
+		hna_global_entry = hashit.bucket->data;
 
 		bytes_written += snprintf(buff + bytes_written,
 					  (2 * ETH_STR_LEN) + 10,
@@ -381,12 +388,9 @@ int hna_global_fill_buffer_text(unsigned char *buff, int buff_len)
 void _hna_global_del_orig(struct hna_global_entry *hna_global_entry,
 			  char *message)
 {
-	char hna_str[ETH_STR_LEN], orig_str[ETH_STR_LEN];
-
-	addr_to_string(orig_str, hna_global_entry->orig_node->orig);
-	addr_to_string(hna_str, hna_global_entry->addr);
-
-	debug_log(LOG_TYPE_ROUTES, "Deleting global hna entry %s (via %s): %s \n", hna_str, orig_str, message);
+	bat_dbg(DBG_ROUTES, "Deleting global hna entry %pM (via %pM): %s \n",
+		hna_global_entry->addr, hna_global_entry->orig_node->orig,
+		message);
 
 	hash_remove(hna_global_hash, hna_global_entry->addr);
 	kfree(hna_global_entry);

drivers/staging/batman-adv/translation-table.h

@@ -23,6 +23,7 @@
 
 int hna_local_init(void);
 void hna_local_add(uint8_t *addr);
+void hna_local_remove(uint8_t *addr, char *message);
 int hna_local_fill_buffer(unsigned char *buff, int buff_len);
 int hna_local_fill_buffer_text(unsigned char *buff, int buff_len);
 void hna_local_purge(struct work_struct *work);

drivers/staging/batman-adv/types.h

@@ -39,7 +39,6 @@ struct batman_if {
 	char if_active;
 	char addr_str[ETH_STR_LEN];
 	struct net_device *net_dev;
-	struct socket *raw_sock;
 	atomic_t seqno;
 	unsigned char *packet_buff;
 	int packet_len;
@@ -75,7 +74,7 @@ struct neigh_node {
 	uint8_t tq_index;
 	uint8_t tq_avg;
 	uint8_t last_ttl;
-	unsigned long last_valid;            /* when last packet via this neighbour was received */
+	unsigned long last_valid;            /* when last packet via this neighbor was received */
 	TYPE_OF_WORD real_bits[NUM_WORDS];
 	struct orig_node *orig_node;
 	struct batman_if *if_incoming;
@@ -113,6 +112,7 @@ struct forw_packet {               /* structure for forw_list maintaining packet
 	struct hlist_node list;
 	unsigned long send_time;
 	uint8_t own;
+	struct sk_buff *skb;
 	unsigned char *packet_buff;
 	uint16_t packet_len;
 	uint32_t direct_link_flags;
@@ -121,4 +121,14 @@ struct forw_packet {               /* structure for forw_list maintaining packet
 	struct batman_if *if_incoming;
 };
 
+/* While scanning for vis-entries of a particular vis-originator
+ * this list collects its interfaces to create a subgraph/cluster
+ * out of them later
+ */
+struct if_list_entry {
+	uint8_t addr[ETH_ALEN];
+	bool primary;
+	struct hlist_node list;
+};
+
 #endif

drivers/staging/batman-adv/vis.c

@@ -23,11 +23,9 @@
 #include "send.h"
 #include "translation-table.h"
 #include "vis.h"
-#include "log.h"
 #include "soft-interface.h"
 #include "hard-interface.h"
 #include "hash.h"
-#include "compat.h"
 
 struct hashtable_t *vis_hash;
 DEFINE_SPINLOCK(vis_hash_lock);
@@ -50,39 +48,6 @@ static void free_info(void *data)
 	kfree(info);
 }
 
-/* set the mode of the visualization to client or server */
-void vis_set_mode(int mode)
-{
-	spin_lock(&vis_hash_lock);
-
-	if (my_vis_info != NULL)
-		my_vis_info->packet.vis_type = mode;
-
-	spin_unlock(&vis_hash_lock);
-}
-
-/* is_vis_server(), locked outside */
-static int is_vis_server_locked(void)
-{
-	if (my_vis_info != NULL)
-		if (my_vis_info->packet.vis_type == VIS_TYPE_SERVER_SYNC)
-			return 1;
-
-	return 0;
-}
-
-/* get the current set mode */
-int is_vis_server(void)
-{
-	int ret = 0;
-
-	spin_lock(&vis_hash_lock);
-	ret = is_vis_server_locked();
-	spin_unlock(&vis_hash_lock);
-
-	return ret;
-}
-
 /* Compare two vis packets, used by the hashing algorithm */
 static int vis_info_cmp(void *data1, void *data2)
 {
@@ -115,6 +80,68 @@ static int vis_info_choose(void *data, int size)
 	return hash % size;
 }
 
+/* insert interface to the list of interfaces of one originator, if it
+ * does not already exist in the list */
+static void proc_vis_insert_interface(const uint8_t *interface,
+				      struct hlist_head *if_list,
+				      bool primary)
+{
+	struct if_list_entry *entry;
+	struct hlist_node *pos;
+
+	hlist_for_each_entry(entry, pos, if_list, list) {
+		if (compare_orig(entry->addr, (void *)interface))
+			return;
+	}
+
+	/* its a new address, add it to the list */
+	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry)
+		return;
+	memcpy(entry->addr, interface, ETH_ALEN);
+	entry->primary = primary;
+	hlist_add_head(&entry->list, if_list);
+}
+
+void proc_vis_read_prim_sec(struct seq_file *seq,
+			    struct hlist_head *if_list)
+{
+	struct if_list_entry *entry;
+	struct hlist_node *pos, *n;
+	char tmp_addr_str[ETH_STR_LEN];
+
+	hlist_for_each_entry_safe(entry, pos, n, if_list, list) {
+		if (entry->primary) {
+			seq_printf(seq, "PRIMARY, ");
+		} else {
+			addr_to_string(tmp_addr_str, entry->addr);
+			seq_printf(seq, "SEC %s, ", tmp_addr_str);
+		}
+
+		hlist_del(&entry->list);
+		kfree(entry);
+	}
+}
+
+/* read an entry  */
+void proc_vis_read_entry(struct seq_file *seq,
+				struct vis_info_entry *entry,
+				struct hlist_head *if_list,
+				uint8_t *vis_orig)
+{
+	char to[40];
+
+	addr_to_string(to, entry->dest);
+	if (entry->quality == 0) {
+		proc_vis_insert_interface(vis_orig, if_list, true);
+		seq_printf(seq, "HNA %s, ", to);
+	} else {
+		proc_vis_insert_interface(entry->src, if_list,
+					  compare_orig(entry->src, vis_orig));
+		seq_printf(seq, "TQ %s %d, ", to, entry->quality);
+	}
+}
+
 /* tries to add one entry to the receive list. */
 static void recv_list_add(struct list_head *recv_list, char *mac)
 {
@@ -208,21 +235,23 @@ void receive_server_sync_packet(struct vis_packet *vis_packet, int vis_info_len)
 {
 	struct vis_info *info;
 	int is_new;
+	unsigned long flags;
+	int vis_server = atomic_read(&vis_mode);
 
-	spin_lock(&vis_hash_lock);
+	spin_lock_irqsave(&vis_hash_lock, flags);
 	info = add_packet(vis_packet, vis_info_len, &is_new);
 	if (info == NULL)
 		goto end;
 
 	/* only if we are server ourselves and packet is newer than the one in
 	 * hash.*/
-	if (is_vis_server_locked() && is_new) {
+	if (vis_server == VIS_TYPE_SERVER_SYNC && is_new) {
 		memcpy(info->packet.target_orig, broadcastAddr, ETH_ALEN);
 		if (list_empty(&info->send_list))
 			list_add_tail(&info->send_list, &send_list);
 	}
 end:
-	spin_unlock(&vis_hash_lock);
+	spin_unlock_irqrestore(&vis_hash_lock, flags);
 }
 
 /* handle an incoming client update packet and schedule forward if needed. */
@@ -231,12 +260,14 @@ void receive_client_update_packet(struct vis_packet *vis_packet,
 {
 	struct vis_info *info;
 	int is_new;
+	unsigned long flags;
+	int vis_server = atomic_read(&vis_mode);
 
 	/* clients shall not broadcast. */
 	if (is_bcast(vis_packet->target_orig))
 		return;
 
-	spin_lock(&vis_hash_lock);
+	spin_lock_irqsave(&vis_hash_lock, flags);
 	info = add_packet(vis_packet, vis_info_len, &is_new);
 	if (info == NULL)
 		goto end;
@@ -244,7 +275,7 @@ void receive_client_update_packet(struct vis_packet *vis_packet,
 
 
 	/* send only if we're the target server or ... */
-	if (is_vis_server_locked() &&
+	if (vis_server == VIS_TYPE_SERVER_SYNC  &&
 	    is_my_mac(info->packet.target_orig) &&
 	    is_new) {
 		info->packet.vis_type = VIS_TYPE_SERVER_SYNC;	/* upgrade! */
@@ -258,7 +289,7 @@ void receive_client_update_packet(struct vis_packet *vis_packet,
 			list_add_tail(&info->send_list, &send_list);
 	}
 end:
-	spin_unlock(&vis_hash_lock);
+	spin_unlock_irqrestore(&vis_hash_lock, flags);
 }
 
 /* Walk the originators and find the VIS server with the best tq. Set the packet
@@ -267,12 +298,12 @@ end:
  * Must be called with the originator hash locked */
 static int find_best_vis_server(struct vis_info *info)
 {
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	struct orig_node *orig_node;
 	int best_tq = -1;
 
-	while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
-		orig_node = hashit->bucket->data;
+	while (hash_iterate(orig_hash, &hashit)) {
+		orig_node = hashit.bucket->data;
 		if ((orig_node != NULL) &&
 		    (orig_node->router != NULL) &&
 		    (orig_node->flags & VIS_SERVER) &&
@@ -298,7 +329,8 @@ static bool vis_packet_full(struct vis_info *info)
  * returns 0 on success, -1 if no packet could be generated */
 static int generate_vis_packet(void)
 {
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit_local);
+	HASHIT(hashit_global);
 	struct orig_node *orig_node;
 	struct vis_info *info = (struct vis_info *)my_vis_info;
 	struct vis_info_entry *entry, *entry_array;
@@ -307,27 +339,27 @@ static int generate_vis_packet(void)
 	unsigned long flags;
 
 	info->first_seen = jiffies;
+	info->packet.vis_type = atomic_read(&vis_mode);
 
-	spin_lock(&orig_hash_lock);
+	spin_lock_irqsave(&orig_hash_lock, flags);
 	memcpy(info->packet.target_orig, broadcastAddr, ETH_ALEN);
 	info->packet.ttl = TTL;
 	info->packet.seqno++;
 	info->packet.entries = 0;
 
-	if (!is_vis_server_locked()) {
+	if (info->packet.vis_type == VIS_TYPE_CLIENT_UPDATE) {
 		best_tq = find_best_vis_server(info);
 		if (best_tq < 0) {
-			spin_unlock(&orig_hash_lock);
+			spin_unlock_irqrestore(&orig_hash_lock, flags);
 			return -1;
 		}
 	}
-	hashit = NULL;
 
 	entry_array = (struct vis_info_entry *)
 		((char *)info + sizeof(struct vis_info));
 
-	while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
-		orig_node = hashit->bucket->data;
+	while (hash_iterate(orig_hash, &hashit_global)) {
+		orig_node = hashit_global.bucket->data;
 		if (orig_node->router != NULL
 			&& compare_orig(orig_node->router->addr, orig_node->orig)
 			&& orig_node->batman_if
@@ -342,18 +374,17 @@ static int generate_vis_packet(void)
 			info->packet.entries++;
 
 			if (vis_packet_full(info)) {
-				spin_unlock(&orig_hash_lock);
+				spin_unlock_irqrestore(&orig_hash_lock, flags);
 				return 0;
 			}
 		}
 	}
 
-	spin_unlock(&orig_hash_lock);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 
-	hashit = NULL;
 	spin_lock_irqsave(&hna_local_hash_lock, flags);
-	while (NULL != (hashit = hash_iterate(hna_local_hash, hashit))) {
-		hna_local_entry = hashit->bucket->data;
+	while (hash_iterate(hna_local_hash, &hashit_local)) {
+		hna_local_entry = hashit_local.bucket->data;
 		entry = &entry_array[info->packet.entries];
 		memset(entry->src, 0, ETH_ALEN);
 		memcpy(entry->dest, hna_local_entry->addr, ETH_ALEN);
@@ -371,16 +402,16 @@ static int generate_vis_packet(void)
 
 static void purge_vis_packets(void)
 {
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	struct vis_info *info;
 
-	while (NULL != (hashit = hash_iterate(vis_hash, hashit))) {
-		info = hashit->bucket->data;
+	while (hash_iterate(vis_hash, &hashit)) {
+		info = hashit.bucket->data;
 		if (info == my_vis_info)	/* never purge own data. */
 			continue;
 		if (time_after(jiffies,
-			       info->first_seen + (VIS_TIMEOUT/1000)*HZ)) {
-			hash_remove_bucket(vis_hash, hashit);
+			       info->first_seen + (VIS_TIMEOUT*HZ)/1000)) {
+			hash_remove_bucket(vis_hash, &hashit);
 			free_info(info);
 		}
 	}
@@ -388,14 +419,15 @@ static void purge_vis_packets(void)
 
 static void broadcast_vis_packet(struct vis_info *info, int packet_length)
 {
-	struct hash_it_t *hashit = NULL;
+	HASHIT(hashit);
 	struct orig_node *orig_node;
+	unsigned long flags;
 
-	spin_lock(&orig_hash_lock);
+	spin_lock_irqsave(&orig_hash_lock, flags);
 
 	/* send to all routers in range. */
-	while (NULL != (hashit = hash_iterate(orig_hash, hashit))) {
-		orig_node = hashit->bucket->data;
+	while (hash_iterate(orig_hash, &hashit)) {
+		orig_node = hashit.bucket->data;
 
 		/* if it's a vis server and reachable, send it. */
 		if (orig_node &&
@@ -418,14 +450,15 @@ static void broadcast_vis_packet(struct vis_info *info, int packet_length)
 		}
 	}
 	memcpy(info->packet.target_orig, broadcastAddr, ETH_ALEN);
-	spin_unlock(&orig_hash_lock);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 }
 
 static void unicast_vis_packet(struct vis_info *info, int packet_length)
 {
 	struct orig_node *orig_node;
+	unsigned long flags;
 
-	spin_lock(&orig_hash_lock);
+	spin_lock_irqsave(&orig_hash_lock, flags);
 	orig_node = ((struct orig_node *)
 		     hash_find(orig_hash, info->packet.target_orig));
 
@@ -436,7 +469,7 @@ static void unicast_vis_packet(struct vis_info *info, int packet_length)
 				orig_node->batman_if,
 				orig_node->router->addr);
 	}
-	spin_unlock(&orig_hash_lock);
+	spin_unlock_irqrestore(&orig_hash_lock, flags);
 }
 
 /* only send one vis packet. called from send_vis_packets() */
@@ -445,8 +478,7 @@ static void send_vis_packet(struct vis_info *info)
 	int packet_length;
 
 	if (info->packet.ttl < 2) {
-		debug_log(LOG_TYPE_NOTICE,
-			  "Error - can't send vis packet: ttl exceeded\n");
+		printk(KERN_WARNING "batman-adv: Error - can't send vis packet: ttl exceeded\n");
 		return;
 	}
 
@@ -467,8 +499,9 @@ static void send_vis_packet(struct vis_info *info)
 static void send_vis_packets(struct work_struct *work)
 {
 	struct vis_info *info, *temp;
+	unsigned long flags;
 
-	spin_lock(&vis_hash_lock);
+	spin_lock_irqsave(&vis_hash_lock, flags);
 	purge_vis_packets();
 
 	if (generate_vis_packet() == 0)
@@ -479,7 +512,7 @@ static void send_vis_packets(struct work_struct *work)
 		list_del_init(&info->send_list);
 		send_vis_packet(info);
 	}
-	spin_unlock(&vis_hash_lock);
+	spin_unlock_irqrestore(&vis_hash_lock, flags);
 	start_vis_timer();
 }
 static DECLARE_DELAYED_WORK(vis_timer_wq, send_vis_packets);
@@ -488,20 +521,21 @@ static DECLARE_DELAYED_WORK(vis_timer_wq, send_vis_packets);
  * initialized (e.g. bat0 is initialized, interfaces have been added) */
 int vis_init(void)
 {
+	unsigned long flags;
 	if (vis_hash)
 		return 1;
 
-	spin_lock(&vis_hash_lock);
+	spin_lock_irqsave(&vis_hash_lock, flags);
 
 	vis_hash = hash_new(256, vis_info_cmp, vis_info_choose);
 	if (!vis_hash) {
-		debug_log(LOG_TYPE_CRIT, "Can't initialize vis_hash\n");
+		printk(KERN_ERR "batman-adv:Can't initialize vis_hash\n");
 		goto err;
 	}
 
 	my_vis_info = kmalloc(1000, GFP_ATOMIC);
 	if (!my_vis_info) {
-		debug_log(LOG_TYPE_CRIT, "Can't initialize vis packet\n");
+		printk(KERN_ERR "batman-adv:Can't initialize vis packet\n");
 		goto err;
 	}
 
@@ -511,7 +545,6 @@ int vis_init(void)
 	INIT_LIST_HEAD(&my_vis_info->send_list);
 	my_vis_info->packet.version = COMPAT_VERSION;
 	my_vis_info->packet.packet_type = BAT_VIS;
-	my_vis_info->packet.vis_type = VIS_TYPE_CLIENT_UPDATE;
 	my_vis_info->packet.ttl = TTL;
 	my_vis_info->packet.seqno = 0;
 	my_vis_info->packet.entries = 0;
@@ -522,19 +555,19 @@ int vis_init(void)
 	memcpy(my_vis_info->packet.sender_orig, mainIfAddr, ETH_ALEN);
 
 	if (hash_add(vis_hash, my_vis_info) < 0) {
-		debug_log(LOG_TYPE_CRIT,
-			  "Can't add own vis packet into hash\n");
+		printk(KERN_ERR
+			  "batman-adv:Can't add own vis packet into hash\n");
 		free_info(my_vis_info);	/* not in hash, need to remove it
 					 * manually. */
 		goto err;
 	}
 
-	spin_unlock(&vis_hash_lock);
+	spin_unlock_irqrestore(&vis_hash_lock, flags);
 	start_vis_timer();
 	return 1;
 
 err:
-	spin_unlock(&vis_hash_lock);
+	spin_unlock_irqrestore(&vis_hash_lock, flags);
 	vis_quit();
 	return 0;
 }
@@ -542,23 +575,23 @@ err:
 /* shutdown vis-server */
 void vis_quit(void)
 {
+	unsigned long flags;
 	if (!vis_hash)
 		return;
 
 	cancel_delayed_work_sync(&vis_timer_wq);
 
-	spin_lock(&vis_hash_lock);
+	spin_lock_irqsave(&vis_hash_lock, flags);
 	/* properly remove, kill timers ... */
 	hash_delete(vis_hash, free_info);
 	vis_hash = NULL;
 	my_vis_info = NULL;
-	spin_unlock(&vis_hash_lock);
+	spin_unlock_irqrestore(&vis_hash_lock, flags);
 }
 
 /* schedule packets for (re)transmission */
 static void start_vis_timer(void)
 {
 	queue_delayed_work(bat_event_workqueue, &vis_timer_wq,
-			   (atomic_read(&vis_interval)/1000) * HZ);
+			   (atomic_read(&vis_interval) * HZ) / 1000);
 }
-

drivers/staging/batman-adv/vis.h

@@ -45,16 +45,15 @@ struct recvlist_node {
 	uint8_t mac[ETH_ALEN];
 };
 
-enum vis_formats {
-	DOT_DRAW,
-	JSON,
-};
-
 extern struct hashtable_t *vis_hash;
 extern spinlock_t vis_hash_lock;
 
-void vis_set_mode(int mode);
-int is_vis_server(void);
+void proc_vis_read_entry(struct seq_file *seq,
+				struct vis_info_entry *entry,
+				struct hlist_head *if_list,
+				uint8_t *vis_orig);
+void proc_vis_read_prim_sec(struct seq_file *seq,
+			    struct hlist_head *if_list);
 void receive_server_sync_packet(struct vis_packet *vis_packet,
 				int vis_info_len);
 void receive_client_update_packet(struct vis_packet *vis_packet,

drivers/staging/comedi/comedi_compat32.c

@@ -26,7 +26,6 @@
 
 #define __NO_VERSION__
 #include "comedi.h"
-#include <linux/smp_lock.h>
 #include <linux/uaccess.h>
 
 #include "comedi_compat32.h"

drivers/staging/comedi/comedi_fops.c

@@ -63,7 +63,7 @@ module_param(comedi_debug, int, 0644);
 int comedi_autoconfig = 1;
 module_param(comedi_autoconfig, bool, 0444);
 
-int comedi_num_legacy_minors = 0;
+int comedi_num_legacy_minors;
 module_param(comedi_num_legacy_minors, int, 0444);
 
 static DEFINE_SPINLOCK(comedi_file_info_table_lock);
@@ -1510,7 +1510,7 @@ static unsigned int comedi_poll(struct file *file, poll_table * wait)
 }
 
 static ssize_t comedi_write(struct file *file, const char *buf, size_t nbytes,
-			    loff_t * offset)
+				loff_t *offset)
 {
 	struct comedi_subdevice *s;
 	struct comedi_async *async;
@@ -1612,7 +1612,7 @@ done:
 }
 
 static ssize_t comedi_read(struct file *file, char *buf, size_t nbytes,
-			   loff_t * offset)
+				loff_t *offset)
 {
 	struct comedi_subdevice *s;
 	struct comedi_async *async;
@@ -2004,12 +2004,10 @@ void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (async->cb_mask & s->async->events) {
 		if (comedi_get_subdevice_runflags(s) & SRF_USER) {
 			wake_up_interruptible(&async->wait_head);
-			if (s->subdev_flags & SDF_CMD_READ) {
+			if (s->subdev_flags & SDF_CMD_READ)
 				kill_fasync(&dev->async_queue, SIGIO, POLL_IN);
-			}
-			if (s->subdev_flags & SDF_CMD_WRITE) {
+			if (s->subdev_flags & SDF_CMD_WRITE)
 				kill_fasync(&dev->async_queue, SIGIO, POLL_OUT);
-			}
 		} else {
 			if (async->cb_func)
 				async->cb_func(s->async->events, async->cb_arg);

drivers/staging/comedi/drivers.c

@@ -44,7 +44,7 @@
 #include <linux/cdev.h>
 #include <linux/dma-mapping.h>
 
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/system.h>
 
 static int postconfig(struct comedi_device *dev);
@@ -99,11 +99,10 @@ static void cleanup_device(struct comedi_device *dev)
 static void __comedi_device_detach(struct comedi_device *dev)
 {
 	dev->attached = 0;
-	if (dev->driver) {
+	if (dev->driver)
 		dev->driver->detach(dev);
-	} else {
+	else
 		printk("BUG: dev->driver=NULL in comedi_device_detach()\n");
-	}
 	cleanup_device(dev);
 }
 
@@ -380,9 +379,8 @@ static int insn_rw_emulate_bits(struct comedi_device *dev,
 	if (ret < 0)
 		return ret;
 
-	if (insn->insn == INSN_READ) {
+	if (insn->insn == INSN_READ)
 		data[0] = (new_data[1] >> (chan - base_bitfield_channel)) & 1;
-	}
 
 	return 1;
 }
@@ -429,9 +427,9 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
 	new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK;
 
 	/* if no change is required, do nothing */
-	if (async->prealloc_buf && async->prealloc_bufsz == new_size) {
+	if (async->prealloc_buf && async->prealloc_bufsz == new_size)
 		return 0;
-	}
+
 	/*  deallocate old buffer */
 	if (async->prealloc_buf) {
 		vunmap(async->prealloc_buf);
@@ -494,9 +492,9 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
 					    (void *)
 					    get_zeroed_page(GFP_KERNEL);
 				}
-				if (async->buf_page_list[i].virt_addr == NULL) {
+				if (async->buf_page_list[i].virt_addr == NULL)
 					break;
-				}
+
 				mem_map_reserve(virt_to_page
 						(async->buf_page_list[i].
 						 virt_addr));
@@ -619,9 +617,9 @@ unsigned int comedi_buf_write_alloc(struct comedi_async *async,
 {
 	unsigned int free_end = async->buf_read_count + async->prealloc_bufsz;
 
-	if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) {
+	if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0)
 		nbytes = free_end - async->buf_write_alloc_count;
-	}
+
 	async->buf_write_alloc_count += nbytes;
 	/* barrier insures the read of buf_read_count above occurs before
 	   we write data to the write-alloc'ed buffer space */
@@ -635,9 +633,9 @@ unsigned int comedi_buf_write_alloc_strict(struct comedi_async *async,
 {
 	unsigned int free_end = async->buf_read_count + async->prealloc_bufsz;
 
-	if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) {
+	if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0)
 		nbytes = 0;
-	}
+
 	async->buf_write_alloc_count += nbytes;
 	/* barrier insures the read of buf_read_count above occurs before
 	   we write data to the write-alloc'ed buffer space */
@@ -657,9 +655,9 @@ unsigned comedi_buf_write_free(struct comedi_async *async, unsigned int nbytes)
 	async->buf_write_count += nbytes;
 	async->buf_write_ptr += nbytes;
 	comedi_buf_munge(async, async->buf_write_count - async->munge_count);
-	if (async->buf_write_ptr >= async->prealloc_bufsz) {
+	if (async->buf_write_ptr >= async->prealloc_bufsz)
 		async->buf_write_ptr %= async->prealloc_bufsz;
-	}
+
 	return nbytes;
 }
 

drivers/staging/comedi/drivers/addi-data/APCI1710_Chrono.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/APCI1710_Dig_io.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/APCI1710_INCCPT.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/APCI1710_Inp_cpt.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/APCI1710_Pwm.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/APCI1710_Ssi.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/APCI1710_Tor.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/APCI1710_Ttl.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */
@@ -173,11 +173,10 @@ int i_AddiHeaderRW_ReadEeprom(int i_NbOfWordsToRead,
 			} while (dw_eeprom_busy == EEPROM_BUSY);
 
 			/* Select the upper address part */
-			if (i_Counter == 0) {
+			if (i_Counter == 0)
 				b_ReadLowByte = pb_ReadByte[0];
-			} else {
+			else
 				b_ReadHighByte = pb_ReadByte[0];
-			}
 
 			/* Sleep */
 			msleep(1);

drivers/staging/comedi/drivers/addi-data/addi_common.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/addi_common.h

@@ -77,8 +77,8 @@ struct addi_board {
 	int i_NbrAoChannel;	/*  num of D/A chans */
 	int i_AiMaxdata;	/*  resolution of A/D */
 	int i_AoMaxdata;	/*  resolution of D/A */
-        const struct comedi_lrange *pr_AiRangelist;	/* rangelist for A/D */
-        const struct comedi_lrange *pr_AoRangelist;	/* rangelist for D/A */
+	const struct comedi_lrange *pr_AiRangelist;	/* rangelist for A/D */
+	const struct comedi_lrange *pr_AoRangelist;	/* rangelist for D/A */
 
 	int i_NbrDiChannel;	/*  Number of DI channels */
 	int i_NbrDoChannel;	/*  Number of DO channels */

drivers/staging/comedi/drivers/addi-data/addi_eeprom.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_APCI1710.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci035.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci1032.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */
@@ -54,7 +54,7 @@ You shoud also find the complete GPL in the COPYING file accompanying this sourc
 #include "hwdrv_apci1032.h"
 #include <linux/delay.h>
 /* Global variables */
-unsigned int ui_InterruptStatus = 0;
+unsigned int ui_InterruptStatus;
 
 /*
 +----------------------------------------------------------------------------+
@@ -108,9 +108,9 @@ int i_APCI1032_ConfigDigitalInput(struct comedi_device *dev, struct comedi_subde
 			ui_TmpValue =
 				inl(devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
 		}		/* if (data[1] == ADDIDATA_OR) */
-		else {
+		else
 			outl(0x6, devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
-		}		/* else if(data[1] == ADDIDATA_OR) */
+				/* else if(data[1] == ADDIDATA_OR) */
 	}			/*  if( data[0] == ADDIDATA_ENABLE) */
 	else {
 		ul_Command1 = ul_Command1 & 0xFFFF0000;
@@ -221,9 +221,9 @@ int i_APCI1032_ReadMoreDigitalInput(struct comedi_device *dev, struct comedi_sub
 		}		/* switch(ui_NoOfChannels) */
 	}			/* if(data[1]==0) */
 	else {
-		if (data[1] == 1) {
+		if (data[1] == 1)
 			*data = ui_InterruptStatus;
-		}		/* if(data[1]==1) */
+				/* if(data[1]==1) */
 	}			/* else if(data[1]==0) */
 	return insn->n;
 }

drivers/staging/comedi/drivers/addi-data/hwdrv_apci1500.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci1516.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci16xx.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci2016.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci2200.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */
@@ -45,7 +45,7 @@ You shoud also find the complete GPL in the COPYING file accompanying this sourc
 */
 
 #include "hwdrv_apci3120.h"
-static unsigned int ui_Temp = 0;
+static unsigned int ui_Temp;
 
 /* FUNCTION DEFINITIONS */
 
@@ -98,25 +98,22 @@ int i_APCI3120_InsnConfigAnalogInput(struct comedi_device *dev, struct comedi_su
 
 		devpriv->b_InterruptMode = APCI3120_EOS_MODE;
 
-		if (data[1]) {
+		if (data[1])
 			devpriv->b_EocEosInterrupt = APCI3120_ENABLE;
-		} else
+		else
 			devpriv->b_EocEosInterrupt = APCI3120_DISABLE;
 		/*  Copy channel list and Range List to devpriv */
 
 		devpriv->ui_AiNbrofChannels = data[3];
-		for (i = 0; i < devpriv->ui_AiNbrofChannels; i++) {
+		for (i = 0; i < devpriv->ui_AiNbrofChannels; i++)
 			devpriv->ui_AiChannelList[i] = data[4 + i];
-		}
 
-	} else			/*  EOC */
-	{
+	} else {			/*  EOC */
 		devpriv->b_InterruptMode = APCI3120_EOC_MODE;
-		if (data[1]) {
+		if (data[1])
 			devpriv->b_EocEosInterrupt = APCI3120_ENABLE;
-		} else {
+		else
 			devpriv->b_EocEosInterrupt = APCI3120_DISABLE;
-		}
 	}
 
 	return insn->n;
@@ -166,13 +163,9 @@ int i_APCI3120_InsnReadAnalogInput(struct comedi_device *dev, struct comedi_subd
 	devpriv->us_OutputRegister = 0;
 /* devpriv->b_DigitalOutputRegister=0; */
 
-	if (insn->unused[0] == 222)	/*  second insn read */
-	{
-
-		for (i = 0; i < insn->n; i++) {
+	if (insn->unused[0] == 222) {	/*  second insn read */
+		for (i = 0; i < insn->n; i++)
 			data[i] = devpriv->ui_AiReadData[i];
-		}
-
 	} else {
 		devpriv->tsk_Current = current;	/*  Save the current process task structure */
 /*
@@ -519,9 +512,8 @@ int i_APCI3120_CommandTestAnalogInput(struct comedi_device *dev, struct comedi_s
 
 	/* step 2: make sure trigger sources are unique and mutually compatible */
 
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT) {
+	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
 		err++;
-	}
 
 	if (cmd->scan_begin_src != TRIG_TIMER &&
 		cmd->scan_begin_src != TRIG_FOLLOW)
@@ -548,16 +540,14 @@ int i_APCI3120_CommandTestAnalogInput(struct comedi_device *dev, struct comedi_s
 		err++;
 	}
 
-	if (cmd->scan_begin_src == TRIG_TIMER)	/*  Test Delay timing */
-	{
+	if (cmd->scan_begin_src == TRIG_TIMER) {	/*  Test Delay timing */
 		if (cmd->scan_begin_arg < this_board->ui_MinDelaytimeNs) {
 			cmd->scan_begin_arg = this_board->ui_MinDelaytimeNs;
 			err++;
 		}
 	}
 
-	if (cmd->convert_src == TRIG_TIMER)	/*  Test Acquisition timing */
-	{
+	if (cmd->convert_src == TRIG_TIMER) {	/*  Test Acquisition timing */
 		if (cmd->scan_begin_src == TRIG_TIMER) {
 			if ((cmd->convert_arg)
 				&& (cmd->convert_arg <
@@ -653,11 +643,10 @@ int i_APCI3120_CommandAnalogInput(struct comedi_device *dev, struct comedi_subde
 	/* UPDATE-0.7.57->0.7.68devpriv->ui_AiDataLength=s->async->data_len; */
 	devpriv->ui_AiDataLength = s->async->prealloc_bufsz;
 
-	if (cmd->stop_src == TRIG_COUNT) {
+	if (cmd->stop_src == TRIG_COUNT)
 		devpriv->ui_AiNbrofScans = cmd->stop_arg;
-	} else {
+	else
 		devpriv->ui_AiNbrofScans = 0;
-	}
 
 	devpriv->ui_AiTimer0 = 0;	/*  variables changed to timer0,timer1 */
 	devpriv->ui_AiTimer1 = 0;
@@ -849,9 +838,8 @@ int i_APCI3120_CyclicAnalogInput(int mode, struct comedi_device *dev,
 	}
 /*** EL241003 End ******************************************************************************/
 
-	if (devpriv->b_ExttrigEnable == APCI3120_ENABLE) {
+	if (devpriv->b_ExttrigEnable == APCI3120_ENABLE)
 		i_APCI3120_ExttrigEnable(dev);	/*  activate EXT trigger */
-	}
 	switch (mode) {
 	case 1:
 		/*  init timer0 in mode 2 */
@@ -1049,12 +1037,10 @@ int i_APCI3120_CyclicAnalogInput(int mode, struct comedi_device *dev,
 					dmalen1 = 4;
 			}
 		} else {	/*  isn't output buff smaller that our DMA buff? */
-			if (dmalen0 > (devpriv->ui_AiDataLength)) {
+			if (dmalen0 > (devpriv->ui_AiDataLength))
 				dmalen0 = devpriv->ui_AiDataLength;
-			}
-			if (dmalen1 > (devpriv->ui_AiDataLength)) {
+			if (dmalen1 > (devpriv->ui_AiDataLength))
 				dmalen1 = devpriv->ui_AiDataLength;
-			}
 		}
 		devpriv->ui_DmaBufferUsesize[0] = dmalen0;
 		devpriv->ui_DmaBufferUsesize[1] = dmalen1;
@@ -1356,11 +1342,10 @@ int i_APCI3120_SetupChannelList(struct comedi_device *dev, struct comedi_subdevi
 		/*  store range list to card */
 		us_TmpValue = CR_CHAN(chanlist[i]);	/*  get channel number; */
 
-		if (CR_RANGE(chanlist[i]) < APCI3120_BIPOLAR_RANGES) {
+		if (CR_RANGE(chanlist[i]) < APCI3120_BIPOLAR_RANGES)
 			us_TmpValue &= ((~APCI3120_UNIPOLAR) & 0xff);	/*  set bipolar */
-		} else {
+		else
 			us_TmpValue |= APCI3120_UNIPOLAR;	/*  enable unipolar...... */
-		}
 
 		gain = CR_RANGE(chanlist[i]);	/*  get gain number */
 		us_TmpValue |= ((gain & 0x03) << 4);	/* <<4 for G0 and G1 bit in RAM */
@@ -1514,8 +1499,7 @@ void v_APCI3120_Interrupt(int irq, void *d)
 	/*  Check If EOS interrupt */
 	if ((int_daq & 0x2) && (devpriv->b_InterruptMode == APCI3120_EOS_MODE)) {
 
-		if (devpriv->b_EocEosInterrupt == APCI3120_ENABLE)	/*  enable this in without DMA ??? */
-		{
+		if (devpriv->b_EocEosInterrupt == APCI3120_ENABLE) {	/*  enable this in without DMA ??? */
 
 			if (devpriv->b_AiCyclicAcquisition == APCI3120_ENABLE) {
 				ui_Check = 0;
@@ -1966,8 +1950,7 @@ int i_APCI3120_InsnConfigTimer(struct comedi_device *dev, struct comedi_subdevic
 		APCI3120_DISABLE_EOS_INT;
 	outb(devpriv->b_ModeSelectRegister,
 		devpriv->iobase + APCI3120_WRITE_MODE_SELECT);
-	if (data[0] == APCI3120_TIMER)	/* initialize timer */
-	{
+	if (data[0] == APCI3120_TIMER) {	/* initialize timer */
 		/* devpriv->b_ModeSelectRegister=devpriv->b_ModeSelectRegister |
 		 * APCI3120_ENABLE_TIMER_INT; */
 
@@ -2006,8 +1989,7 @@ int i_APCI3120_InsnConfigTimer(struct comedi_device *dev, struct comedi_subdevic
 		/*  timer2 in Timer mode enabled */
 		devpriv->b_Timer2Mode = APCI3120_TIMER;
 
-	} else			/*  Initialize Watch dog */
-	{
+	} else {			/*  Initialize Watch dog */
 
 		/* Set the Timer 2 in mode 5(Watchdog) */
 
@@ -2092,8 +2074,7 @@ int i_APCI3120_InsnWriteTimer(struct comedi_device *dev, struct comedi_subdevice
 		return -EINVAL;
 	}
 
-	if (data[0] == 2)	/*  write new value */
-	{
+	if (data[0] == 2) {	/*  write new value */
 		if (devpriv->b_Timer2Mode != APCI3120_TIMER) {
 			comedi_error(dev,
 				"write :timer2  not configured  in TIMER MODE");
@@ -2113,13 +2094,11 @@ int i_APCI3120_InsnWriteTimer(struct comedi_device *dev, struct comedi_subdevice
 
 		/*  Reset FC_TIMER BIT */
 		inb(devpriv->iobase + APCI3120_TIMER_STATUS_REGISTER);
-		if (devpriv->b_Timer2Mode == APCI3120_TIMER)	/* start timer */
-		{
+		if (devpriv->b_Timer2Mode == APCI3120_TIMER) {	/* start timer */
 			/* Enable Timer */
 			devpriv->b_ModeSelectRegister =
 				devpriv->b_ModeSelectRegister & 0x0B;
-		} else		/* start watch dog */
-		{
+		} else {		/* start watch dog */
 			/* Enable WatchDog */
 			devpriv->b_ModeSelectRegister =
 				(devpriv->
@@ -2146,8 +2125,7 @@ int i_APCI3120_InsnWriteTimer(struct comedi_device *dev, struct comedi_subdevice
 		outb(devpriv->b_ModeSelectRegister,
 			devpriv->iobase + APCI3120_WRITE_MODE_SELECT);
 
-		if (devpriv->b_Timer2Mode == APCI3120_TIMER)	/* start timer */
-		{
+		if (devpriv->b_Timer2Mode == APCI3120_TIMER) {	/* start timer */
 			/* For Timer mode is  Gate2 must be activated   **timer started */
 			devpriv->us_OutputRegister =
 				devpriv->
@@ -2299,8 +2277,7 @@ int i_APCI3120_InsnReadTimer(struct comedi_device *dev, struct comedi_subdevice
 		/*  combining both words */
 		data[0] = (unsigned int) ((us_TmpValue) | ((us_TmpValue_2) << 16));
 
-	} else			/*  Read watch dog status */
-	{
+	} else {			/*  Read watch dog status */
 
 		us_StatusValue = inw(devpriv->iobase + APCI3120_RD_STATUS);
 		us_StatusValue =
@@ -2441,10 +2418,9 @@ int i_APCI3120_InsnConfigDigitalOutput(struct comedi_device *dev,
 		devpriv->b_OutputMemoryStatus = APCI3120_DISABLE;
 		devpriv->b_DigitalOutputRegister = 0;
 	}
-	if (!devpriv->b_OutputMemoryStatus) {
+	if (!devpriv->b_OutputMemoryStatus)
 		ui_Temp = 0;
-
-	}			/* if(!devpriv->b_OutputMemoryStatus ) */
+				/* if(!devpriv->b_OutputMemoryStatus ) */
 
 	return insn->n;
 }
@@ -2504,23 +2480,23 @@ int i_APCI3120_InsnBitsDigitalOutput(struct comedi_device *dev,
 
 /*
 +----------------------------------------------------------------------------+
-| Function name     :int i_APCI3120_InsnWriteDigitalOutput(struct comedi_device *dev,|
-|struct comedi_subdevice *s,struct comedi_insn *insn,unsigned int *data) 			             |
-|                                            						         |
+| Function name		:int i_APCI3120_InsnWriteDigitalOutput(struct comedi_device *dev,|
+|struct comedi_subdevice *s,struct comedi_insn *insn,unsigned int *data)	|
+|										|
 +----------------------------------------------------------------------------+
-| Task              : Write digiatl output								     |
-|                     										                 |
+| Task			: Write digiatl output					|
+| 										|
 +----------------------------------------------------------------------------+
-| Input Parameters  : struct comedi_device *dev								 	 |
-|                     struct comedi_subdevice *s									 |
-|                     struct comedi_insn *insn                                      |
-|                     unsigned int *data 										 |
-                      data[0]     Value to be written
-                      data[1]    :1 Set digital o/p ON
-                      data[1]     2 Set digital o/p OFF with memory ON
+| Input Parameters	: struct comedi_device *dev				|
+|			struct comedi_subdevice *s			 	|
+|			struct comedi_insn *insn				|
+|			unsigned int *data					|
+			data[0]     Value to be written
+			data[1]    :1 Set digital o/p ON
+			data[1]     2 Set digital o/p OFF with memory ON
 +----------------------------------------------------------------------------+
-| Return Value      :              					                         |
-|                    													     |
+| Return Value		:							|
+|										|
 +----------------------------------------------------------------------------+
 */
 
@@ -2615,8 +2591,7 @@ int i_APCI3120_InsnWriteAnalogOutput(struct comedi_device *dev,
 	ui_Channel = CR_CHAN(insn->chanspec);
 
 	/* this_board->i_hwdrv_InsnWriteAnalogOutput(dev, ui_Range, ui_Channel,data[0]); */
-	if (ui_Range)		/*  if 1 then unipolar */
-	{
+	if (ui_Range) {		/*  if 1 then unipolar */
 
 		if (data[0] != 0)
 			data[0] =
@@ -2627,8 +2602,7 @@ int i_APCI3120_InsnWriteAnalogOutput(struct comedi_device *dev,
 				((((ui_Channel & 0x03) << 14) & 0xC000) | (1 <<
 					13) | 8192);
 
-	} else			/*  if 0 then   bipolar */
-	{
+	} else {			/*  if 0 then   bipolar */
 		data[0] =
 			((((ui_Channel & 0x03) << 14) & 0xC000) | (0 << 13) |
 			data[0]);
@@ -2639,8 +2613,7 @@ int i_APCI3120_InsnWriteAnalogOutput(struct comedi_device *dev,
  * out put n values at the given channel. printk("\nwaiting for
  * DA_READY BIT");
  */
-	do			/* Waiting of DA_READY BIT */
-	{
+	do {			/* Waiting of DA_READY BIT */
 		us_TmpValue =
 			((unsigned short) inw(devpriv->iobase +
 				APCI3120_RD_STATUS)) & 0x0001;

drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */

drivers/staging/comedi/drivers/addi-data/hwdrv_apci3xxx.c

@@ -17,7 +17,7 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-You shoud also find the complete GPL in the COPYING file accompanying this source code.
+You should also find the complete GPL in the COPYING file accompanying this source code.
 
 @endverbatim
 */
@@ -1206,7 +1206,7 @@ int i_APCI3XXX_InsnWriteTTLIO(struct comedi_device *dev,
 
 		if (b_Channel < 8) {
 	      /*****************************************************************************/
-			/* Read port 0 (first digital output port) and set/reset the selcted channel */
+			/* Read port 0 (first digital output port) and set/reset the selected channel */
 	      /*****************************************************************************/
 
 			dw_Status = inl(devpriv->iobase + 80);
@@ -1228,7 +1228,7 @@ int i_APCI3XXX_InsnWriteTTLIO(struct comedi_device *dev,
 				if ((devpriv->ul_TTLPortConfiguration[0] & 0xFF)
 					== 0xFF) {
 		    /*****************************************************************************/
-					/* Read port 2 (first digital output port) and set/reset the selcted channel */
+					/* Read port 2 (first digital output port) and set/reset the selected channel */
 		    /*****************************************************************************/
 
 					dw_Status = inl(devpriv->iobase + 112);

drivers/staging/comedi/drivers/adl_pci9118.c

@@ -88,9 +88,9 @@ Configuration options:
 #define IORANGE_9118 	64	/* I hope */
 #define PCI9118_CHANLEN	255	/* len of chanlist, some source say 256, but reality looks like 255 :-( */
 
-#define PCI9118_CNT0	0x00	/* R/W: 8254 couter 0 */
-#define PCI9118_CNT1	0x04	/* R/W: 8254 couter 0 */
-#define PCI9118_CNT2	0x08	/* R/W: 8254 couter 0 */
+#define PCI9118_CNT0	0x00	/* R/W: 8254 counter 0 */
+#define PCI9118_CNT1	0x04	/* R/W: 8254 counter 0 */
+#define PCI9118_CNT2	0x08	/* R/W: 8254 counter 0 */
 #define PCI9118_CNTCTRL	0x0c	/* W:   8254 counter control */
 #define PCI9118_AD_DATA	0x10	/* R:   A/D data */
 #define PCI9118_DA1	0x10	/* W:   D/A registers */

drivers/staging/comedi/drivers/adq12b.c

@@ -42,23 +42,23 @@ If you do not specify any options, they will default to
   option 1: I/O base address. The following table is provided as a help
    of the hardware jumpers.
 
-         address            jumper JADR
-          0x300                 1 (factory default)
-          0x320                 2
-          0x340                 3
-          0x360                 4
-          0x380                 5
-          0x3A0                 6
+	 address            jumper JADR
+	  0x300                 1 (factory default)
+	  0x320                 2
+	  0x340                 3
+	  0x360                 4
+	  0x380                 5
+	  0x3A0                 6
 
   option 2: unipolar/bipolar ADC selection: 0 -> bipolar, 1 -> unipolar
 
-        selection         comedi_config option            JUB
-         bipolar                0                         2-3 (factory default)
-         unipolar               1                         1-2
+	selection         comedi_config option            JUB
+	 bipolar                0                         2-3 (factory default)
+	 unipolar               1                         1-2
 
   option 3: single-ended/differential AI selection: 0 -> SE, 1 -> differential
 
-        selection         comedi_config option     JCHA    JCHB
+	selection         comedi_config option     JCHA    JCHB
        single-ended             0                  1-2     1-2 (factory default)
        differential             1                  2-3     2-3
 
@@ -140,7 +140,7 @@ static const struct adq12b_board adq12b_boards[] = {
 	.ai_bits = 12,
 	.di_chans = 8,
 	.do_chans = 5
-        }*/
+	}*/
 };
 
 #define thisboard ((const struct adq12b_board *)dev->board_ptr)
@@ -164,14 +164,15 @@ struct adq12b_private {
 static int adq12b_attach(struct comedi_device *dev,
 			 struct comedi_devconfig *it);
 static int adq12b_detach(struct comedi_device *dev);
+
 static struct comedi_driver driver_adq12b = {
-driver_name:"adq12b",
-module:THIS_MODULE,
-attach:adq12b_attach,
-detach:adq12b_detach,
-board_name:&adq12b_boards[0].name,
-offset:sizeof(struct adq12b_board),
-num_names:ARRAY_SIZE(adq12b_boards),
+	.driver_name = "adq12b",
+	.module = THIS_MODULE,
+	.attach = adq12b_attach,
+	.detach = adq12b_detach,
+	.board_name = &adq12b_boards[0].name,
+	.offset = sizeof(struct adq12b_board),
+	.num_names = ARRAY_SIZE(adq12b_boards),
 };
 
 static int adq12b_ai_rinsn(struct comedi_device *dev,
@@ -200,15 +201,16 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unipolar = it->options[1];
 	differential = it->options[2];
 
-	printk("comedi%d: adq12b called with options base=0x%03lx, %s and %s\n",
-	       dev->minor, iobase, (unipolar == 1) ? "unipolar" : "bipolar",
+	printk(KERN_INFO "comedi%d: adq12b called with options base=0x%03lx, "
+	       "%s and %s\n", dev->minor, iobase,
+	       (unipolar == 1) ? "unipolar" : "bipolar",
 	       (differential == 1) ? "differential" : "single-ended");
 
 	/* if no address was specified, try the default 0x300 */
 	if (iobase == 0) {
-		printk
-		    ("comedi%d: adq12b warning: I/O base address not specified. Trying the default 0x300.\n",
-		     dev->minor);
+		printk(KERN_WARNING "comedi%d: adq12b warning: I/O base "
+		       "address not specified. Trying the default 0x300.\n",
+		       dev->minor);
 		iobase = 0x300;
 	}
 
@@ -259,11 +261,10 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->n_chan = thisboard->ai_se_chans;
 	}
 
-	if (unipolar) {
+	if (unipolar)
 		s->range_table = &range_adq12b_ai_unipolar;
-	} else {
+	else
 		s->range_table = &range_adq12b_ai_bipolar;
-	}
 
 	s->maxdata = (1 << thisboard->ai_bits) - 1;
 
@@ -289,7 +290,7 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_digital;
 	s->insn_bits = adq12b_do_insn_bits;
 
-	printk("attached\n");
+	printk(KERN_INFO "attached\n");
 
 	return 0;
 }
@@ -309,7 +310,7 @@ static int adq12b_detach(struct comedi_device *dev)
 
 	kfree(devpriv);
 
-	printk("comedi%d: adq12b: removed\n", dev->minor);
+	printk(KERN_INFO "comedi%d: adq12b: removed\n", dev->minor);
 
 	return 0;
 }
@@ -344,17 +345,18 @@ static int adq12b_ai_rinsn(struct comedi_device *dev,
 		/* wait for end of convertion */
 		i = 0;
 		do {
-/* udelay(1); */
+			/* udelay(1); */
 			status = inb(dev->iobase + ADQ12B_STINR);
 			status = status & ADQ12B_EOC;
 		} while (status == 0 && ++i < TIMEOUT);
-/* } while (++i < 10); */
+		/* } while (++i < 10); */
 
 		/* read data */
 		hi = inb(dev->iobase + ADQ12B_ADHIG);
 		lo = inb(dev->iobase + ADQ12B_ADLOW);
 
-		/* printk("debug: chan=%d range=%d status=%d hi=%d lo=%d\n", channel, range, status,  hi, lo); */
+		/* printk("debug: chan=%d range=%d status=%d hi=%d lo=%d\n",
+		       channel, range, status,  hi, lo); */
 		data[n] = (hi << 8) | lo;
 
 	}

drivers/staging/comedi/drivers/adv_pci1710.c

@@ -84,9 +84,9 @@ Configuration options:
 #define PCI171x_DAREF	14	/* W:   D/A reference control */
 #define PCI171x_DI	16	/* R:   digi inputs */
 #define PCI171x_DO	16	/* R:   digi inputs */
-#define PCI171x_CNT0	24	/* R/W: 8254 couter 0 */
-#define PCI171x_CNT1	26	/* R/W: 8254 couter 1 */
-#define PCI171x_CNT2	28	/* R/W: 8254 couter 2 */
+#define PCI171x_CNT0	24	/* R/W: 8254 counter 0 */
+#define PCI171x_CNT1	26	/* R/W: 8254 counter 1 */
+#define PCI171x_CNT2	28	/* R/W: 8254 counter 2 */
 #define PCI171x_CNTCTRL	30	/* W:   8254 counter control */
 
 /* upper bits from status register (PCI171x_STATUS) (lower is same woth control reg) */
@@ -724,6 +724,7 @@ static int move_block_from_fifo(struct comedi_device *dev,
 			devpriv->ai_act_scan++;
 		}
 	}
+	s->async->cur_chan = j;
 	DPRINTK("adv_pci1710 EDBG: END: move_block_from_fifo(...)\n");
 	return 0;
 }
@@ -1034,14 +1035,6 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 		}
 	}
 
-	if (!cmd->chanlist_len) {
-		cmd->chanlist_len = 1;
-		err++;
-	}
-	if (cmd->chanlist_len > this_board->n_aichan) {
-		cmd->chanlist_len = this_board->n_aichan;
-		err++;
-	}
 	if (cmd->scan_end_arg != cmd->chanlist_len) {
 		cmd->scan_end_arg = cmd->chanlist_len;
 		err++;
@@ -1230,6 +1223,12 @@ static void setup_channel_list(struct comedi_device *dev,
 		DPRINTK("GS: %2d. [%4x]=%4x %4x\n", i, chanprog, range,
 			devpriv->act_chanlist[i]);
 	}
+#ifdef PCI171x_PARANOIDCHECK
+	for ( ; i < n_chan; i++) { /* store remainder of channel list */
+		devpriv->act_chanlist[i] =
+		    (CR_CHAN(chanlist[i]) << 12) & 0xf000;
+	}
+#endif
 
 	devpriv->ai_et_MuxVal =
 	    CR_CHAN(chanlist[0]) | (CR_CHAN(chanlist[seglen - 1]) << 8);

drivers/staging/comedi/drivers/aio_iiro_16.c

@@ -98,7 +98,7 @@ static int aio_iiro_16_attach(struct comedi_device *dev,
 	int iobase;
 	struct comedi_subdevice *s;
 
-	printk("comedi%d: aio_iiro_16: ", dev->minor);
+	printk(KERN_INFO "comedi%d: aio_iiro_16: ", dev->minor);
 
 	dev->board_name = thisboard->name;
 
@@ -140,7 +140,7 @@ static int aio_iiro_16_attach(struct comedi_device *dev,
 
 static int aio_iiro_16_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: aio_iiro_16: remove\n", dev->minor);
+	printk(KERN_INFO "comedi%d: aio_iiro_16: remove\n", dev->minor);
 
 	if (dev->iobase)
 		release_region(dev->iobase, AIO_IIRO_16_SIZE);

drivers/staging/comedi/drivers/amplc_dio200.c

@@ -48,8 +48,8 @@ Passing a zero for an option is the same as leaving it unspecified.
 
 SUBDEVICES
 
-                    PC218E         PC212E      PC215E/PCI215
-                 -------------  -------------  -------------
+		    PC218E         PC212E      PC215E/PCI215
+		 -------------  -------------  -------------
   Subdevices           7              6              5
    0                 CTR-X1         PPI-X          PPI-X
    1                 CTR-X2         CTR-Y1         PPI-Y
@@ -59,8 +59,8 @@ SUBDEVICES
    5                 CTR-Z2       INTERRUPT
    6               INTERRUPT
 
-                    PC214E      PC272E/PCI272
-                 -------------  -------------
+		    PC214E      PC272E/PCI272
+		 -------------  -------------
   Subdevices           4              4
    0                 PPI-X          PPI-X
    1                 PPI-Y          PPI-Y
@@ -96,8 +96,8 @@ instructions are supported:
     0 to 7 as follows:
 
       0.  CLK n, the counter channel's dedicated CLK input from the SK1
-        connector.  (N.B. for other values, the counter channel's CLKn
-        pin on the SK1 connector is an output!)
+	connector.  (N.B. for other values, the counter channel's CLKn
+	pin on the SK1 connector is an output!)
       1.  Internal 10 MHz clock.
       2.  Internal 1 MHz clock.
       3.  Internal 100 kHz clock.
@@ -105,8 +105,8 @@ instructions are supported:
       5.  Internal 1 kHz clock.
       6.  OUT n-1, the output of counter channel n-1 (see note 1 below).
       7.  Ext Clock, the counter chip's dedicated Ext Clock input from
-        the SK1 connector.  This pin is shared by all three counter
-        channels on the chip.
+	the SK1 connector.  This pin is shared by all three counter
+	channels on the chip.
 
   INSN_CONFIG_GET_CLOCK_SRC.  Returns the counter channel's current
     clock source in data[1].  For internal clock sources, data[2] is set
@@ -120,10 +120,10 @@ instructions are supported:
       0.  VCC (internal +5V d.c.), i.e. gate permanently enabled.
       1.  GND (internal 0V d.c.), i.e. gate permanently disabled.
       2.  GAT n, the counter channel's dedicated GAT input from the SK1
-        connector.  (N.B. for other values, the counter channel's GATn
-        pin on the SK1 connector is an output!)
+	connector.  (N.B. for other values, the counter channel's GATn
+	pin on the SK1 connector is an output!)
       3.  /OUT n-2, the inverted output of counter channel n-2 (see note
-        2 below).
+	2 below).
       4.  Reserved.
       5.  Reserved.
       6.  Reserved.
@@ -153,8 +153,8 @@ below.
 
 INTERRUPT SOURCES
 
-                    PC218E         PC212E      PC215E/PCI215
-                 -------------  -------------  -------------
+		    PC218E         PC212E      PC215E/PCI215
+		 -------------  -------------  -------------
   Sources              6              6              6
    0              CTR-X1-OUT      PPI-X-C0       PPI-X-C0
    1              CTR-X2-OUT      PPI-X-C3       PPI-X-C3
@@ -163,8 +163,8 @@ INTERRUPT SOURCES
    4              CTR-Z1-OUT     CTR-Z1-OUT     CTR-Z1-OUT
    5              CTR-Z2-OUT     CTR-Z2-OUT     CTR-Z2-OUT
 
-                    PC214E      PC272E/PCI272
-                 -------------  -------------
+		    PC214E      PC272E/PCI272
+		 -------------  -------------
   Sources              1              6
    0               JUMPER-J5      PPI-X-C0
    1                              PPI-X-C3
@@ -435,11 +435,13 @@ MODULE_DEVICE_TABLE(pci, dio200_pci_table);
  * Useful for shorthand access to the particular board structure
  */
 #define thisboard ((const struct dio200_board *)dev->board_ptr)
-#define thislayout (&dio200_layouts[((struct dio200_board *)dev->board_ptr)->layout])
+#define thislayout (&dio200_layouts[((struct dio200_board *) \
+		    dev->board_ptr)->layout])
 
 /* this structure is for data unique to this hardware driver.  If
    several hardware drivers keep similar information in this structure,
-   feel free to suggest moving the variable to the struct comedi_device struct.  */
+   feel free to suggest moving the variable to the struct comedi_device struct.
+ */
 struct dio200_private {
 #ifdef CONFIG_COMEDI_PCI
 	struct pci_dev *pci_dev;	/* PCI device */
@@ -603,9 +605,8 @@ static void dio200_stop_intr(struct comedi_device *dev,
 
 	subpriv->active = 0;
 	subpriv->enabled_isns = 0;
-	if (subpriv->has_int_sce) {
+	if (subpriv->has_int_sce)
 		outb(0, subpriv->iobase);
-	}
 }
 
 /*
@@ -629,16 +630,14 @@ static int dio200_start_intr(struct comedi_device *dev,
 		/* Determine interrupt sources to enable. */
 		isn_bits = 0;
 		if (cmd->chanlist) {
-			for (n = 0; n < cmd->chanlist_len; n++) {
+			for (n = 0; n < cmd->chanlist_len; n++)
 				isn_bits |= (1U << CR_CHAN(cmd->chanlist[n]));
-			}
 		}
 		isn_bits &= subpriv->valid_isns;
 		/* Enable interrupt sources. */
 		subpriv->enabled_isns = isn_bits;
-		if (subpriv->has_int_sce) {
+		if (subpriv->has_int_sce)
 			outb(isn_bits, subpriv->iobase);
-		}
 	}
 
 	return retval;
@@ -662,14 +661,13 @@ dio200_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	spin_lock_irqsave(&subpriv->spinlock, flags);
 	s->async->inttrig = 0;
-	if (subpriv->active) {
+	if (subpriv->active)
 		event = dio200_start_intr(dev, s);
-	}
+
 	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
-	if (event) {
+	if (event)
 		comedi_event(dev, s);
-	}
 
 	return 1;
 }
@@ -726,9 +724,8 @@ static int dio200_handle_read_intr(struct comedi_device *dev,
 		 * Reenable them NOW to minimize the time they are disabled.
 		 */
 		cur_enabled = subpriv->enabled_isns;
-		if (subpriv->has_int_sce) {
+		if (subpriv->has_int_sce)
 			outb(cur_enabled, subpriv->iobase);
-		}
 
 		if (subpriv->active) {
 			/*
@@ -747,9 +744,8 @@ static int dio200_handle_read_intr(struct comedi_device *dev,
 				len = s->async->cmd.chanlist_len;
 				for (n = 0; n < len; n++) {
 					ch = CR_CHAN(s->async->cmd.chanlist[n]);
-					if (triggered & (1U << ch)) {
+					if (triggered & (1U << ch))
 						val |= (1U << n);
-					}
 				}
 				/* Write the scan to the buffer. */
 				if (comedi_buf_put(s->async, val)) {
@@ -781,9 +777,8 @@ static int dio200_handle_read_intr(struct comedi_device *dev,
 	}
 	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
-	if (oldevents != s->async->events) {
+	if (oldevents != s->async->events)
 		comedi_event(dev, s);
-	}
 
 	return (triggered != 0);
 }
@@ -798,9 +793,9 @@ static int dio200_subdev_intr_cancel(struct comedi_device *dev,
 	unsigned long flags;
 
 	spin_lock_irqsave(&subpriv->spinlock, flags);
-	if (subpriv->active) {
+	if (subpriv->active)
 		dio200_stop_intr(dev, s);
-	}
+
 	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	return 0;
@@ -846,7 +841,8 @@ dio200_subdev_intr_cmdtest(struct comedi_device *dev,
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* step 2: make sure trigger sources are unique and mutually
+		   compatible */
 
 	/* these tests are true if more than one _src bit is set */
 	if ((cmd->start_src & (cmd->start_src - 1)) != 0)
@@ -952,9 +948,8 @@ static int dio200_subdev_intr_cmd(struct comedi_device *dev,
 	}
 	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
-	if (event) {
+	if (event)
 		comedi_event(dev, s);
-	}
 
 	return 0;
 }
@@ -980,9 +975,8 @@ dio200_subdev_intr_init(struct comedi_device *dev, struct comedi_subdevice *s,
 	subpriv->valid_isns = valid_isns;
 	spin_lock_init(&subpriv->spinlock);
 
-	if (has_int_sce) {
+	if (has_int_sce)
 		outb(0, subpriv->iobase);	/* Disable interrupt sources. */
-	}
 
 	s->private = subpriv;
 	s->type = COMEDI_SUBD_DI;
@@ -1013,10 +1007,7 @@ dio200_subdev_intr_cleanup(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {
 	struct dio200_subdev_intr *subpriv = s->private;
-
-	if (subpriv) {
-		kfree(subpriv);
-	}
+	kfree(subpriv);
 }
 
 /*
@@ -1027,9 +1018,8 @@ static irqreturn_t dio200_interrupt(int irq, void *d)
 	struct comedi_device *dev = d;
 	int handled;
 
-	if (!dev->attached) {
+	if (!dev->attached)
 		return IRQ_NONE;
-	}
 
 	if (devpriv->intr_sd >= 0) {
 		handled = dio200_handle_read_intr(dev,
@@ -1266,10 +1256,7 @@ dio200_subdev_8254_cleanup(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {
 	struct dio200_subdev_intr *subpriv = s->private;
-
-	if (subpriv) {
-		kfree(subpriv);
-	}
+	kfree(subpriv);
 }
 
 /*
@@ -1348,9 +1335,8 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 	{
 		ret = dio200_request_region(dev->minor, iobase, DIO200_IO_SIZE);
-		if (ret < 0) {
+		if (ret < 0)
 			return ret;
-		}
 	}
 	dev->iobase = iobase;
 
@@ -1371,17 +1357,17 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			ret = dio200_subdev_8254_init(dev, s, iobase,
 						      layout->sdinfo[n],
 						      layout->has_clk_gat_sce);
-			if (ret < 0) {
+			if (ret < 0)
 				return ret;
-			}
+
 			break;
 		case sd_8255:
 			/* digital i/o subdevice (8255) */
 			ret = subdev_8255_init(dev, s, 0,
 					       iobase + layout->sdinfo[n]);
-			if (ret < 0) {
+			if (ret < 0)
 				return ret;
-			}
+
 			break;
 		case sd_intr:
 			/* 'INTERRUPT' subdevice */
@@ -1392,9 +1378,9 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 							      layout->sdinfo[n],
 							      layout->
 							      has_int_sce);
-				if (ret < 0) {
+				if (ret < 0)
 					return ret;
-				}
+
 				devpriv->intr_sd = n;
 			} else {
 				s->type = COMEDI_SUBD_UNUSED;
@@ -1407,9 +1393,8 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	sdx = devpriv->intr_sd;
-	if (sdx >= 0 && sdx < dev->n_subdevices) {
+	if (sdx >= 0 && sdx < dev->n_subdevices)
 		dev->read_subdev = &dev->subdevices[sdx];
-	}
 
 	dev->board_name = thisboard->name;
 
@@ -1434,11 +1419,10 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		printk("(pci %s) ", pci_name(pci_dev));
 #endif
 	}
-	if (irq) {
+	if (irq)
 		printk("(irq %u%s) ", irq, (dev->irq ? "" : " UNAVAILABLE"));
-	} else {
+	else
 		printk("(no irq) ");
-	}
 
 	printk("attached\n");
 
@@ -1461,9 +1445,8 @@ static int dio200_detach(struct comedi_device *dev)
 	printk(KERN_DEBUG "comedi%d: %s: detach\n", dev->minor,
 	       DIO200_DRIVER_NAME);
 
-	if (dev->irq) {
+	if (dev->irq)
 		free_irq(dev->irq, dev);
-	}
 	if (dev->subdevices) {
 		layout = thislayout;
 		for (n = 0; n < dev->n_subdevices; n++) {
@@ -1486,22 +1469,19 @@ static int dio200_detach(struct comedi_device *dev)
 	if (devpriv) {
 #ifdef CONFIG_COMEDI_PCI
 		if (devpriv->pci_dev) {
-			if (dev->iobase) {
+			if (dev->iobase)
 				comedi_pci_disable(devpriv->pci_dev);
-			}
 			pci_dev_put(devpriv->pci_dev);
 		} else
 #endif
 		{
-			if (dev->iobase) {
+			if (dev->iobase)
 				release_region(dev->iobase, DIO200_IO_SIZE);
-			}
 		}
 	}
-	if (dev->board_name) {
+	if (dev->board_name)
 		printk(KERN_INFO "comedi%d: %s removed\n",
 		       dev->minor, dev->board_name);
-	}
 
 	return 0;
 }

drivers/staging/comedi/drivers/amplc_pc236.c

@@ -78,18 +78,18 @@ unused.
  */
 /* Disable interrupt, also clear any interrupt there */
 #define PCI236_INTR_DISABLE (PLX9052_INTCSR_LI1ENAB_DISABLED \
-        | PLX9052_INTCSR_LI1POL_HIGH \
-        | PLX9052_INTCSR_LI2POL_HIGH \
-        | PLX9052_INTCSR_PCIENAB_DISABLED \
-        | PLX9052_INTCSR_LI1SEL_EDGE \
-        | PLX9052_INTCSR_LI1CLRINT_ASSERTED)
+	| PLX9052_INTCSR_LI1POL_HIGH \
+	| PLX9052_INTCSR_LI2POL_HIGH \
+	| PLX9052_INTCSR_PCIENAB_DISABLED \
+	| PLX9052_INTCSR_LI1SEL_EDGE \
+	| PLX9052_INTCSR_LI1CLRINT_ASSERTED)
 /* Enable interrupt, also clear any interrupt there. */
 #define PCI236_INTR_ENABLE (PLX9052_INTCSR_LI1ENAB_ENABLED \
-        | PLX9052_INTCSR_LI1POL_HIGH \
-        | PLX9052_INTCSR_LI2POL_HIGH \
-        | PLX9052_INTCSR_PCIENAB_ENABLED \
-        | PLX9052_INTCSR_LI1SEL_EDGE \
-        | PLX9052_INTCSR_LI1CLRINT_ASSERTED)
+	| PLX9052_INTCSR_LI1POL_HIGH \
+	| PLX9052_INTCSR_LI2POL_HIGH \
+	| PLX9052_INTCSR_PCIENAB_ENABLED \
+	| PLX9052_INTCSR_LI1SEL_EDGE \
+	| PLX9052_INTCSR_LI1CLRINT_ASSERTED)
 
 /*
  * Board descriptions for Amplicon PC36AT and PCI236.
@@ -150,12 +150,13 @@ MODULE_DEVICE_TABLE(pci, pc236_pci_table);
 
 /* this structure is for data unique to this hardware driver.  If
    several hardware drivers keep similar information in this structure,
-   feel free to suggest moving the variable to the struct comedi_device struct.  */
+   feel free to suggest moving the variable to the struct comedi_device struct.
+ */
 struct pc236_private {
 #ifdef CONFIG_COMEDI_PCI
 	/* PCI device */
 	struct pci_dev *pci_dev;
-	unsigned long lcr_iobase;	/* PLX PCI9052 config registers in PCIBAR1 */
+	unsigned long lcr_iobase; /* PLX PCI9052 config registers in PCIBAR1 */
 #endif
 	int enable_irq;
 };
@@ -345,9 +346,8 @@ static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 	{
 		ret = pc236_request_region(dev->minor, iobase, PC236_IO_SIZE);
-		if (ret < 0) {
+		if (ret < 0)
 			return ret;
-		}
 	}
 	dev->iobase = iobase;
 
@@ -399,11 +399,10 @@ static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		printk("(pci %s) ", pci_name(pci_dev));
 #endif
 	}
-	if (irq) {
+	if (irq)
 		printk("(irq %u%s) ", irq, (dev->irq ? "" : " UNAVAILABLE"));
-	} else {
+	else
 		printk("(no irq) ");
-	}
 
 	printk("attached\n");
 
@@ -422,27 +421,24 @@ static int pc236_detach(struct comedi_device *dev)
 {
 	printk(KERN_DEBUG "comedi%d: %s: detach\n", dev->minor,
 	       PC236_DRIVER_NAME);
-	if (devpriv) {
+	if (devpriv)
 		pc236_intr_disable(dev);
-	}
+
 	if (dev->irq)
 		free_irq(dev->irq, dev);
-	if (dev->subdevices) {
+	if (dev->subdevices)
 		subdev_8255_cleanup(dev, dev->subdevices + 0);
-	}
 	if (devpriv) {
 #ifdef CONFIG_COMEDI_PCI
 		if (devpriv->pci_dev) {
-			if (dev->iobase) {
+			if (dev->iobase)
 				comedi_pci_disable(devpriv->pci_dev);
-			}
 			pci_dev_put(devpriv->pci_dev);
 		} else
 #endif
 		{
-			if (dev->iobase) {
+			if (dev->iobase)
 				release_region(dev->iobase, PC236_IO_SIZE);
-			}
 		}
 	}
 	if (dev->board_name) {

drivers/staging/comedi/drivers/amplc_pci224.c

@@ -1536,20 +1536,12 @@ static int pci224_detach(struct comedi_device *dev)
 
 		s = dev->subdevices + 0;
 		/* AO subdevice */
-		if (s->range_table_list) {
-			kfree(s->range_table_list);
-		}
+		kfree(s->range_table_list);
 	}
 	if (devpriv) {
-		if (devpriv->ao_readback) {
-			kfree(devpriv->ao_readback);
-		}
-		if (devpriv->ao_scan_vals) {
-			kfree(devpriv->ao_scan_vals);
-		}
-		if (devpriv->ao_scan_order) {
-			kfree(devpriv->ao_scan_order);
-		}
+		kfree(devpriv->ao_readback);
+		kfree(devpriv->ao_scan_vals);
+		kfree(devpriv->ao_scan_order);
 		if (devpriv->pci_dev) {
 			if (dev->iobase) {
 				comedi_pci_disable(devpriv->pci_dev);

drivers/staging/comedi/drivers/c6xdigio.c

@@ -45,7 +45,7 @@ http://robot0.ge.uiuc.edu/~spong/mecha/
 #include <linux/interrupt.h>
 #include <linux/timex.h>
 #include <linux/timer.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <linux/pnp.h>
 
 #include "../comedidev.h"
@@ -220,11 +220,11 @@ static int C6X_encInput(unsigned long baseAddr, unsigned channel)
 	/* printk("Inside C6X_encInput\n"); */
 
 	enc.value = 0;
-	if (channel == 0) {
+	if (channel == 0)
 		ppcmd = 0x48;
-	} else {
+	else
 		ppcmd = 0x50;
-	}
+
 	WriteByteToHwPort(baseAddr, ppcmd);
 	tmp = ReadByteFromHwPort(baseAddr + 1);
 	while (((tmp & 0x80) == 0) && (timeout < C6XDIGIO_TIME_OUT)) {
@@ -391,9 +391,8 @@ static int c6xdigio_ei_insn_read(struct comedi_device *dev,
 	int n;
 	int chan = CR_CHAN(insn->chanspec);
 
-	for (n = 0; n < insn->n; n++) {
+	for (n = 0; n < insn->n; n++)
 		data[n] = (C6X_encInput(dev->iobase, chan) & 0xffffff);
-	}
 
 	return n;
 }
@@ -420,9 +419,9 @@ static void board_init(struct comedi_device *dev)
 
 static const struct pnp_device_id c6xdigio_pnp_tbl[] = {
 	/* Standard LPT Printer Port */
-	{.id = "PNP0400",.driver_data = 0},
+	{.id = "PNP0400", .driver_data = 0},
 	/* ECP Printer Port */
-	{.id = "PNP0401",.driver_data = 0},
+	{.id = "PNP0401", .driver_data = 0},
 	{}
 };
 
@@ -452,15 +451,14 @@ static int c6xdigio_attach(struct comedi_device *dev,
 	if (result < 0)
 		return result;
 
-	/*  Make sure that PnP ports gets activated */
+	/*  Make sure that PnP ports get activated */
 	pnp_register_driver(&c6xdigio_pnp_driver);
 
 	irq = it->options[1];
-	if (irq > 0) {
+	if (irq > 0)
 		printk("comedi%d: irq = %u ignored\n", dev->minor, irq);
-	} else if (irq == 0) {
+	else if (irq == 0)
 		printk("comedi%d: no irq\n", dev->minor);
-	}
 
 	s = dev->subdevices + 0;
 	/* pwm output subdevice */
@@ -483,19 +481,19 @@ static int c6xdigio_attach(struct comedi_device *dev,
 	s->maxdata = 0xffffff;
 	s->range_table = &range_unknown;
 
-	/*           s = dev->subdevices + 2; */
+	/*	s = dev->subdevices + 2; */
 	/* pwm output subdevice */
-	/*       s->type = COMEDI_SUBD_COUNTER;  // Not sure what to put here */
-	/*       s->subdev_flags = SDF_WRITEABLE; */
-	/*       s->n_chan = 1; */
-	/*       s->trig[0] = c6xdigio_ei_init; */
-	/*       s->insn_read = c6xdigio_ei_init_insn_read; */
-	/*       s->insn_write = c6xdigio_ei_init_insn_write; */
-	/*       s->maxdata = 0xFFFF;  // Really just a don't care */
-	/*       s->range_table = &range_unknown; // Not sure what to put here */
-
-	/*  I will call this init anyway but more than likely the DSP board will not be connect */
-	/*  when device driver is loaded. */
+	/*	s->type = COMEDI_SUBD_COUNTER;  // Not sure what to put here */
+	/*	s->subdev_flags = SDF_WRITEABLE; */
+	/*	s->n_chan = 1; */
+	/*	s->trig[0] = c6xdigio_ei_init; */
+	/*	s->insn_read = c6xdigio_ei_init_insn_read; */
+	/*	s->insn_write = c6xdigio_ei_init_insn_write; */
+	/*	s->maxdata = 0xFFFF;  // Really just a don't care */
+	/*	s->range_table = &range_unknown; // Not sure what to put here */
+
+	/*  I will call this init anyway but more than likely the DSP board */
+	/*  will not be connected when device driver is loaded. */
 	board_init(dev);
 
 	return 0;
@@ -503,16 +501,17 @@ static int c6xdigio_attach(struct comedi_device *dev,
 
 static int c6xdigio_detach(struct comedi_device *dev)
 {
-/* board_halt(dev);  may not need this */
+	/* board_halt(dev);  may not need this */
 
 	printk("comedi%d: c6xdigio: remove\n", dev->minor);
 
-	if (dev->iobase) {
+	if (dev->iobase)
 		release_region(dev->iobase, C6XDIGIO_SIZE);
-	}
-	if (dev->irq) {
+
+	/*  Not using IRQ so I am not sure if I need this */
+	if (dev->irq)
 		free_irq(dev->irq, dev);
-	}			/*  Not using IRQ so I am not sure if I need this */
+
 	pnp_unregister_driver(&c6xdigio_pnp_driver);
 
 	return 0;

drivers/staging/comedi/drivers/cb_pcidas.c

@@ -518,7 +518,7 @@ static int trimpot_7376_write(struct comedi_device *dev, uint8_t value);
 static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel,
 			      uint8_t value);
 static int nvram_read(struct comedi_device *dev, unsigned int address,
-		      uint8_t * data);
+		      uint8_t *data);
 
 static inline unsigned int cal_enable_bits(struct comedi_device *dev)
 {
@@ -760,9 +760,8 @@ static int cb_pcidas_detach(struct comedi_device *dev)
 	if (dev->subdevices)
 		subdev_8255_cleanup(dev, dev->subdevices + 2);
 	if (devpriv && devpriv->pci_dev) {
-		if (devpriv->s5933_config) {
+		if (devpriv->s5933_config)
 			comedi_pci_disable(devpriv->pci_dev);
-		}
 		pci_dev_put(devpriv->pci_dev);
 	}
 
@@ -1248,9 +1247,8 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev,
 					cmd->flags & TRIG_ROUND_MASK);
 
 	/*  set number of conversions */
-	if (cmd->stop_src == TRIG_COUNT) {
+	if (cmd->stop_src == TRIG_COUNT)
 		devpriv->count = cmd->chanlist_len * cmd->stop_arg;
-	}
 	/*  enable interrupts */
 	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->adc_fifo_bits |= INTE;
@@ -1449,9 +1447,8 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev,
 			   devpriv->ao_divisor2, 2);
 	}
 	/*  set number of conversions */
-	if (cmd->stop_src == TRIG_COUNT) {
+	if (cmd->stop_src == TRIG_COUNT)
 		devpriv->ao_count = cmd->chanlist_len * cmd->stop_arg;
-	}
 	/*  set pacer source */
 	spin_lock_irqsave(&dev->spinlock, flags);
 	switch (cmd->scan_begin_src) {
@@ -1494,9 +1491,8 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 					       num_points * sizeof(short));
 	num_points = num_bytes / sizeof(short);
 
-	if (cmd->stop_src == TRIG_COUNT) {
+	if (cmd->stop_src == TRIG_COUNT)
 		devpriv->ao_count -= num_points;
-	}
 	/*  write data to board's fifo */
 	outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, num_bytes);
 
@@ -1534,9 +1530,8 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 	static const int timeout = 10000;
 	unsigned long flags;
 
-	if (dev->attached == 0) {
+	if (dev->attached == 0)
 		return IRQ_NONE;
-	}
 
 	async = s->async;
 	async->events = 0;
@@ -1558,15 +1553,13 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 
 	status = inw(devpriv->control_status + INT_ADCFIFO);
 #ifdef CB_PCIDAS_DEBUG
-	if ((status & (INT | EOAI | LADFUL | DAHFI | DAEMI)) == 0) {
+	if ((status & (INT | EOAI | LADFUL | DAHFI | DAEMI)) == 0)
 		comedi_error(dev, "spurious interrupt");
-	}
 #endif
 
 	/*  check for analog output interrupt */
-	if (status & (DAHFI | DAEMI)) {
+	if (status & (DAHFI | DAEMI))
 		handle_ao_interrupt(dev, status);
-	}
 	/*  check for analog input interrupts */
 	/*  if fifo half-full */
 	if (status & ADHFI) {
@@ -1675,9 +1668,8 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
 					       num_points * sizeof(short));
 		num_points = num_bytes / sizeof(short);
 
-		if (async->cmd.stop_src == TRIG_COUNT) {
+		if (async->cmd.stop_src == TRIG_COUNT)
 			devpriv->ao_count -= num_points;
-		}
 		/*  write data to board's fifo */
 		outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer,
 		      num_points);
@@ -1852,7 +1844,7 @@ static int wait_for_nvram_ready(unsigned long s5933_base_addr)
 }
 
 static int nvram_read(struct comedi_device *dev, unsigned int address,
-		      uint8_t * data)
+			uint8_t *data)
 {
 	unsigned long iobase = devpriv->s5933_config;
 

drivers/staging/comedi/drivers/cb_pcidda.c

@@ -410,9 +410,8 @@ static int cb_pcidda_detach(struct comedi_device *dev)
  */
 	if (devpriv) {
 		if (devpriv->pci_dev) {
-			if (devpriv->dac) {
+			if (devpriv->dac)
 				comedi_pci_disable(devpriv->pci_dev);
-			}
 			pci_dev_put(devpriv->pci_dev);
 		}
 	}
@@ -677,9 +676,8 @@ static unsigned int cb_pcidda_serial_in(struct comedi_device *dev)
 
 	for (i = 1; i <= value_width; i++) {
 		/*  read bits most significant bit first */
-		if (inw_p(devpriv->dac + DACALIBRATION1) & SERIAL_OUT_BIT) {
+		if (inw_p(devpriv->dac + DACALIBRATION1) & SERIAL_OUT_BIT)
 			value |= 1 << (value_width - i);
-		}
 	}
 
 	return value;
@@ -716,9 +714,8 @@ static unsigned int cb_pcidda_read_eeprom(struct comedi_device *dev,
 	/*  send serial output stream to eeprom */
 	cal2_bits = SELECT_EEPROM_BIT | DESELECT_REF_DAC_BIT | DUMMY_BIT;
 	/*  deactivate caldacs (one caldac for every two channels) */
-	for (i = 0; i < max_num_caldacs; i++) {
+	for (i = 0; i < max_num_caldacs; i++)
 		cal2_bits |= DESELECT_CALDAC_BIT(i);
-	}
 	outw_p(cal2_bits, devpriv->dac + DACALIBRATION2);
 
 	/*  tell eeprom we want to read */
@@ -756,9 +753,8 @@ static void cb_pcidda_write_caldac(struct comedi_device *dev,
 */
 	cal2_bits = DESELECT_REF_DAC_BIT | DUMMY_BIT;
 	/*  deactivate caldacs (one caldac for every two channels) */
-	for (i = 0; i < max_num_caldacs; i++) {
+	for (i = 0; i < max_num_caldacs; i++)
 		cal2_bits |= DESELECT_CALDAC_BIT(i);
-	}
 	/*  activate the caldac we want */
 	cal2_bits &= ~DESELECT_CALDAC_BIT(caldac);
 	outw_p(cal2_bits, devpriv->dac + DACALIBRATION2);

drivers/staging/comedi/drivers/cb_pcidio.c

@@ -283,17 +283,15 @@ static int pcidio_detach(struct comedi_device *dev)
 	printk("comedi%d: cb_pcidio: remove\n", dev->minor);
 	if (devpriv) {
 		if (devpriv->pci_dev) {
-			if (devpriv->dio_reg_base) {
+			if (devpriv->dio_reg_base)
 				comedi_pci_disable(devpriv->pci_dev);
-			}
 			pci_dev_put(devpriv->pci_dev);
 		}
 	}
 	if (dev->subdevices) {
 		int i;
-		for (i = 0; i < thisboard->n_8255; i++) {
+		for (i = 0; i < thisboard->n_8255; i++)
 			subdev_8255_cleanup(dev, dev->subdevices + i);
-		}
 	}
 	return 0;
 }

drivers/staging/comedi/drivers/cb_pcimdas.c

@@ -330,11 +330,10 @@ found:
 
 	s = dev->subdevices + 2;
 	/* digital i/o subdevice */
-	if (thisboard->has_dio) {
+	if (thisboard->has_dio)
 		subdev_8255_init(dev, s, NULL, devpriv->BADR4);
-	} else {
+	else
 		s->type = COMEDI_SUBD_UNUSED;
-	}
 
 	printk("attached\n");
 
@@ -365,9 +364,8 @@ static int cb_pcimdas_detach(struct comedi_device *dev)
 		free_irq(dev->irq, dev);
 	if (devpriv) {
 		if (devpriv->pci_dev) {
-			if (devpriv->BADR0) {
+			if (devpriv->BADR0)
 				comedi_pci_disable(devpriv->pci_dev);
-			}
 			pci_dev_put(devpriv->pci_dev);
 		}
 	}

drivers/staging/comedi/drivers/cb_pcimdda.c

@@ -284,11 +284,10 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->n_chan = thisboard->ao_chans;
 	s->maxdata = figure_out_maxdata(thisboard->ao_bits);
 	/* this is hard-coded here */
-	if (it->options[2]) {
+	if (it->options[2])
 		s->range_table = &range_bipolar10;
-	} else {
+	else
 		s->range_table = &range_bipolar5;
-	}
 	s->insn_write = &ao_winsn;
 	s->insn_read = &ao_rinsn;
 
@@ -337,9 +336,8 @@ static int detach(struct comedi_device *dev)
 		}
 
 		if (devpriv->pci_dev) {
-			if (devpriv->registers) {
+			if (devpriv->registers)
 				comedi_pci_disable(devpriv->pci_dev);
-			}
 			pci_dev_put(devpriv->pci_dev);
 		}
 

drivers/staging/comedi/drivers/comedi_bond.c

@@ -417,7 +417,7 @@ static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 		int sdev = -1, nchans, tmp;
 		struct BondedDevice *bdev = NULL;
 
-		if (minor < 0 || minor > COMEDI_NUM_BOARD_MINORS) {
+		if (minor < 0 || minor >= COMEDI_NUM_BOARD_MINORS) {
 			ERROR("Minor %d is invalid!\n", minor);
 			return 0;
 		}

drivers/staging/comedi/drivers/contec_pci_dio.c

@@ -173,9 +173,8 @@ static int contec_detach(struct comedi_device *dev)
 	printk("comedi%d: contec: remove\n", dev->minor);
 
 	if (devpriv && devpriv->pci_dev) {
-		if (dev->iobase) {
+		if (dev->iobase)
 			comedi_pci_disable(devpriv->pci_dev);
-		}
 		pci_dev_put(devpriv->pci_dev);
 	}
 

drivers/staging/comedi/drivers/das08_cs.c

@@ -34,7 +34,7 @@ This is the PCMCIA-specific support split off from the
 das08 driver.
 
 Options (for pcm-das08):
-        NONE
+	NONE
 
 Command support does not exist, but could be added for this board.
 */
@@ -52,7 +52,7 @@ Command support does not exist, but could be added for this board.
 #include <pcmcia/cistpl.h>
 #include <pcmcia/ds.h>
 
-static struct pcmcia_device *cur_dev = NULL;
+static struct pcmcia_device *cur_dev;
 
 #define thisboard ((const struct das08_board_struct *)dev->board_ptr)
 

drivers/staging/comedi/drivers/das6402.c

@@ -45,7 +45,7 @@ This driver has suffered bitrot.
 
 #define DAS6402_SIZE 16
 
-#define N_WORDS 3000*64
+#define N_WORDS (3000*64)
 
 #define STOP    0
 #define START   1

drivers/staging/comedi/drivers/das800.c

@@ -399,9 +399,8 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 		} else {
 			fifo_empty = 0;	/*  cio-das802/16 has no fifo empty status bit */
 		}
-		if (fifo_empty) {
+		if (fifo_empty)
 			break;
-		}
 		/* strip off extraneous bits for 12 bit cards */
 		if (thisboard->resolution == 12)
 			dataPoint = (dataPoint >> 4) & 0xfff;
@@ -457,9 +456,8 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	int board;
 
 	printk("comedi%d: das800: io 0x%lx", dev->minor, iobase);
-	if (irq) {
+	if (irq)
 		printk(", irq %u", irq);
-	}
 	printk("\n");
 
 	/* allocate and initialize dev->private */

drivers/staging/comedi/drivers/dmm32at.c

@@ -1048,11 +1048,10 @@ static int dmm32at_dio_insn_config(struct comedi_device *dev,
 	 * value COMEDI_INPUT or COMEDI_OUTPUT. */
 
 	/* if output clear the bit, otherwise set it */
-	if (data[0] == COMEDI_OUTPUT) {
+	if (data[0] == COMEDI_OUTPUT)
 		devpriv->dio_config &= ~chanbit;
-	} else {
+	else
 		devpriv->dio_config |= chanbit;
-	}
 	/* get access to the DIO regs */
 	dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC);
 	/* set the DIO's to the new configuration setting */

drivers/staging/comedi/drivers/dt2801.c

@@ -18,10 +18,10 @@ Configuration options:
   [1] - unused
   [2] - A/D reference 0=differential, 1=single-ended
   [3] - A/D range
-          0 = [-10,10]
+	  0 = [-10, 10]
 	  1 = [0,10]
   [4] - D/A 0 range
-          0 = [-10,10]
+	  0 = [-10, 10]
 	  1 = [-5,5]
 	  2 = [-2.5,2.5]
 	  3 = [0,10]
@@ -279,9 +279,8 @@ static int dt2801_readdata(struct comedi_device *dev, int *data)
 
 	do {
 		stat = inb_p(dev->iobase + DT2801_STATUS);
-		if (stat & (DT_S_COMPOSITE_ERROR | DT_S_READY)) {
+		if (stat & (DT_S_COMPOSITE_ERROR | DT_S_READY))
 			return stat;
-		}
 		if (stat & DT_S_DATA_OUT_READY) {
 			*data = inb_p(dev->iobase + DT2801_DATA);
 			return 0;
@@ -315,9 +314,8 @@ static int dt2801_writedata(struct comedi_device *dev, unsigned int data)
 	do {
 		stat = inb_p(dev->iobase + DT2801_STATUS);
 
-		if (stat & DT_S_COMPOSITE_ERROR) {
+		if (stat & DT_S_COMPOSITE_ERROR)
 			return stat;
-		}
 		if (!(stat & DT_S_DATA_IN_FULL)) {
 			outb_p(data & 0xff, dev->iobase + DT2801_DATA);
 			return 0;
@@ -354,18 +352,15 @@ static int dt2801_wait_for_ready(struct comedi_device *dev)
 	int stat;
 
 	stat = inb_p(dev->iobase + DT2801_STATUS);
-	if (stat & DT_S_READY) {
+	if (stat & DT_S_READY)
 		return 0;
-	}
 	do {
 		stat = inb_p(dev->iobase + DT2801_STATUS);
 
-		if (stat & DT_S_COMPOSITE_ERROR) {
+		if (stat & DT_S_COMPOSITE_ERROR)
 			return stat;
-		}
-		if (stat & DT_S_READY) {
+		if (stat & DT_S_READY)
 			return 0;
-		}
 	} while (--timeout > 0);
 
 	return -ETIME;
@@ -382,9 +377,8 @@ static int dt2801_writecmd(struct comedi_device *dev, int command)
 		printk
 		    ("dt2801: composite-error in dt2801_writecmd(), ignoring\n");
 	}
-	if (!(stat & DT_S_READY)) {
+	if (!(stat & DT_S_READY))
 		printk("dt2801: !ready in dt2801_writecmd(), ignoring\n");
-	}
 	outb_p(command, dev->iobase + DT2801_CMD);
 
 	return 0;
@@ -418,9 +412,8 @@ static int dt2801_reset(struct comedi_device *dev)
 		if (stat & DT_S_READY)
 			break;
 	} while (timeout--);
-	if (!timeout) {
+	if (!timeout)
 		printk("dt2801: timeout 1 status=0x%02x\n", stat);
-	}
 
 	/* printk("dt2801: reading dummy\n"); */
 	/* dt2801_readdata(dev,&board_code); */
@@ -436,9 +429,8 @@ static int dt2801_reset(struct comedi_device *dev)
 		if (stat & DT_S_READY)
 			break;
 	} while (timeout--);
-	if (!timeout) {
+	if (!timeout)
 		printk("dt2801: timeout 2 status=0x%02x\n", stat);
-	}
 
 	DPRINTK("dt2801: reading code\n");
 	dt2801_readdata(dev, &board_code);
@@ -623,11 +615,10 @@ static int dt2801_detach(struct comedi_device *dev)
 static int dt2801_error(struct comedi_device *dev, int stat)
 {
 	if (stat < 0) {
-		if (stat == -ETIME) {
+		if (stat == -ETIME)
 			printk("dt2801: timeout\n");
-		} else {
+		else
 			printk("dt2801: error %d\n", stat);
-		}
 		return stat;
 	}
 	printk("dt2801: error status 0x%02x, resetting...\n", stat);

drivers/staging/comedi/drivers/dt2815.c

@@ -34,19 +34,19 @@ Configuration options:
   [0] - I/O port base base address
   [1] - IRQ (unused)
   [2] - Voltage unipolar/bipolar configuration
-          0 == unipolar 5V  (0V -- +5V)
-	  1 == bipolar 5V  (-5V -- +5V)
+	0 == unipolar 5V  (0V -- +5V)
+	1 == bipolar 5V  (-5V -- +5V)
   [3] - Current offset configuration
-          0 == disabled  (0mA -- +32mAV)
-          1 == enabled  (+4mA -- +20mAV)
+	0 == disabled  (0mA -- +32mAV)
+	1 == enabled  (+4mA -- +20mAV)
   [4] - Firmware program configuration
-          0 == program 1 (see manual table 5-4)
-          1 == program 2 (see manual table 5-4)
-          2 == program 3 (see manual table 5-4)
-          3 == program 4 (see manual table 5-4)
+	0 == program 1 (see manual table 5-4)
+	1 == program 2 (see manual table 5-4)
+	2 == program 3 (see manual table 5-4)
+	3 == program 4 (see manual table 5-4)
   [5] - Analog output 0 range configuration
-          0 == voltage
-          1 == current
+	0 == voltage
+	1 == current
   [6] - Analog output 1 range configuration (same options)
   [7] - Analog output 2 range configuration (same options)
   [8] - Analog output 3 range configuration (same options)
@@ -61,17 +61,11 @@ Configuration options:
 #include <linux/ioport.h>
 #include <linux/delay.h>
 
-static const struct comedi_lrange range_dt2815_ao_32_current = { 1, {
-								     RANGE_mA(0,
-									      32)
-								     }
-};
+static const struct comedi_lrange
+	range_dt2815_ao_32_current = {1, {RANGE_mA(0, 32)} };
 
-static const struct comedi_lrange range_dt2815_ao_20_current = { 1, {
-								     RANGE_mA(4,
-									      20)
-								     }
-};
+static const struct comedi_lrange
+	range_dt2815_ao_20_current = {1, {RANGE_mA(4, 20)} };
 
 #define DT2815_SIZE 2
 
@@ -118,9 +112,8 @@ static int dt2815_ao_insn_read(struct comedi_device *dev,
 	int i;
 	int chan = CR_CHAN(insn->chanspec);
 
-	for (i = 0; i < insn->n; i++) {
+	for (i = 0; i < insn->n; i++)
 		data[i] = devpriv->ao_readback[chan];
-	}
 
 	return i;
 }
@@ -139,9 +132,8 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		status = dt2815_wait_for_status(dev, 0x00);
 		if (status != 0) {
-			printk
-			    ("dt2815: failed to write low byte on %d reason %x\n",
-			     chan, status);
+			printk(KERN_WARNING "dt2815: failed to write low byte "
+			       "on %d reason %x\n", chan, status);
 			return -EBUSY;
 		}
 
@@ -149,9 +141,8 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		status = dt2815_wait_for_status(dev, 0x10);
 		if (status != 0x10) {
-			printk
-			    ("dt2815: failed to write high byte on %d reason %x\n",
-			     chan, status);
+			printk(KERN_WARNING "dt2815: failed to write high byte "
+			       "on %d reason %x\n", chan, status);
 			return -EBUSY;
 		}
 		devpriv->ao_readback[chan] = data[i];
@@ -163,24 +154,24 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
   options[0]   Board base address
   options[1]   IRQ (not applicable)
   options[2]   Voltage unipolar/bipolar configuration
-                 0 == unipolar 5V  (0V -- +5V)
-		 1 == bipolar 5V  (-5V -- +5V)
+		0 == unipolar 5V  (0V -- +5V)
+		1 == bipolar 5V  (-5V -- +5V)
   options[3]   Current offset configuration
-                 0 == disabled  (0mA -- +32mAV)
-                 1 == enabled  (+4mA -- +20mAV)
+		0 == disabled  (0mA -- +32mAV)
+		1 == enabled  (+4mA -- +20mAV)
   options[4]   Firmware program configuration
-                 0 == program 1 (see manual table 5-4)
-                 1 == program 2 (see manual table 5-4)
-                 2 == program 3 (see manual table 5-4)
-                 3 == program 4 (see manual table 5-4)
+		0 == program 1 (see manual table 5-4)
+		1 == program 2 (see manual table 5-4)
+		2 == program 3 (see manual table 5-4)
+		3 == program 4 (see manual table 5-4)
   options[5]   Analog output 0 range configuration
-                 0 == voltage
-                 1 == current
+		0 == voltage
+		1 == current
   options[6]   Analog output 1 range configuration
   ...
   options[12]   Analog output 7 range configuration
-                 0 == voltage
-                 1 == current
+		0 == voltage
+		1 == current
  */
 
 static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
@@ -191,9 +182,9 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned long iobase;
 
 	iobase = it->options[0];
-	printk("comedi%d: dt2815: 0x%04lx ", dev->minor, iobase);
+	printk(KERN_INFO "comedi%d: dt2815: 0x%04lx ", dev->minor, iobase);
 	if (!request_region(iobase, DT2815_SIZE, "dt2815")) {
-		printk("I/O port conflict\n");
+		printk(KERN_WARNING "I/O port conflict\n");
 		return -EIO;
 	}
 
@@ -236,19 +227,17 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			unsigned int program;
 			program = (it->options[4] & 0x3) << 3 | 0x7;
 			outb(program, dev->iobase + DT2815_DATA);
-			printk(", program: 0x%x (@t=%d)\n", program, i);
+			printk(KERN_INFO ", program: 0x%x (@t=%d)\n",
+			       program, i);
 			break;
 		} else if (status != 0x00) {
-			printk("dt2815: unexpected status 0x%x (@t=%d)\n",
-			       status, i);
-			if (status & 0x60) {
+			printk(KERN_WARNING "dt2815: unexpected status 0x%x "
+			       "(@t=%d)\n", status, i);
+			if (status & 0x60)
 				outb(0x00, dev->iobase + DT2815_STATUS);
-			}
 		}
 	}
 
-	printk("\n");
-
 	return 0;
 }
 
@@ -260,7 +249,7 @@ static void dt2815_free_resources(struct comedi_device *dev)
 
 static int dt2815_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: dt2815: remove\n", dev->minor);
+	printk(KERN_INFO "comedi%d: dt2815: remove\n", dev->minor);
 
 	dt2815_free_resources(dev);
 

drivers/staging/comedi/drivers/dt9812.c

@@ -264,7 +264,7 @@ struct dt9812_usb_cmd {
 
 static DECLARE_MUTEX(dt9812_mutex);
 
-static struct usb_device_id dt9812_table[] = {
+static const struct usb_device_id dt9812_table[] = {
 	{USB_DEVICE(0x0867, 0x9812)},
 	{}			/* Terminating entry */
 };

drivers/staging/comedi/drivers/fl512.c

@@ -76,14 +76,14 @@ static int fl512_ai_insn(struct comedi_device *dev,
 	unsigned long iobase = dev->iobase;
 
 	for (n = 0; n < insn->n; n++) {	/* sample n times on selected channel */
-		/* XXX probably can move next step out of for() loop -- will make
-		 * AI a little bit faster. */
+		/* XXX probably can move next step out of for() loop -- will
+		 * make AI a little bit faster. */
 		outb(chan, iobase + 2);	/* select chan */
 		outb(0, iobase + 3);	/* start conversion */
 		/* XXX should test "done" flag instead of delay */
 		udelay(30);	/* sleep 30 usec */
 		lo_byte = inb(iobase + 2);	/* low 8 byte */
-		hi_byte = inb(iobase + 3) & 0xf;	/* high 4 bit and mask */
+		hi_byte = inb(iobase + 3) & 0xf; /* high 4 bit and mask */
 		data[n] = lo_byte + (hi_byte << 8);
 	}
 	return n;
@@ -101,8 +101,10 @@ static int fl512_ao_insn(struct comedi_device *dev,
 	unsigned long iobase = dev->iobase;	/* get base address  */
 
 	for (n = 0; n < insn->n; n++) {	/* write n data set */
-		outb(data[n] & 0x0ff, iobase + 4 + 2 * chan);	/* write low byte   */
-		outb((data[n] & 0xf00) >> 8, iobase + 4 + 2 * chan);	/* write high byte  */
+		/* write low byte   */
+		outb(data[n] & 0x0ff, iobase + 4 + 2 * chan);
+		/* write high byte  */
+		outb((data[n] & 0xf00) >> 8, iobase + 4 + 2 * chan);
 		inb(iobase + 4 + 2 * chan);	/* trig */
 
 		devpriv->ao_readback[chan] = data[n];
@@ -121,9 +123,8 @@ static int fl512_ao_insn_readback(struct comedi_device *dev,
 	int n;
 	int chan = CR_CHAN(insn->chanspec);
 
-	for (n = 0; n < insn->n; n++) {
+	for (n = 0; n < insn->n; n++)
 		data[n] = devpriv->ao_readback[chan];
-	}
 
 	return n;
 }
@@ -134,13 +135,15 @@ static int fl512_ao_insn_readback(struct comedi_device *dev,
 static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	unsigned long iobase;
-	struct comedi_subdevice *s;	/* pointer to the subdevice:
-					   Analog in, Analog out, ( not made ->and Digital IO) */
+
+	/* pointer to the subdevice: Analog in, Analog out,
+	   (not made ->and Digital IO) */
+	struct comedi_subdevice *s;
 
 	iobase = it->options[0];
-	printk("comedi:%d fl512: 0x%04lx", dev->minor, iobase);
+	printk(KERN_INFO "comedi:%d fl512: 0x%04lx", dev->minor, iobase);
 	if (!request_region(iobase, FL512_SIZE, "fl512")) {
-		printk(" I/O port conflict\n");
+		printk(KERN_WARNING " I/O port conflict\n");
 		return -EIO;
 	}
 	dev->iobase = iobase;
@@ -149,7 +152,7 @@ static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -ENOMEM;
 
 #if DEBUG
-	printk("malloc ok\n");
+	printk(KERN_DEBUG "malloc ok\n");
 #endif
 
 	if (alloc_subdevices(dev, 2) < 0)
@@ -160,24 +163,37 @@ static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	 */
 	/* Analog indput */
 	s = dev->subdevices + 0;
-	s->type = COMEDI_SUBD_AI;	/* define subdevice as Analog In   */
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;	/* you can read it from userspace  */
-	s->n_chan = 16;		/* Number of Analog input channels */
-	s->maxdata = 0x0fff;	/* accept only 12 bits of data     */
-	s->range_table = &range_fl512;	/* device use one of the ranges    */
-	s->insn_read = fl512_ai_insn;	/* function to call when read AD   */
-	printk("comedi: fl512: subdevice 0 initialized\n");
+	/* define subdevice as Analog In */
+	s->type = COMEDI_SUBD_AI;
+	/* you can read it from userspace */
+	s->subdev_flags = SDF_READABLE | SDF_GROUND;
+	/* Number of Analog input channels */
+	s->n_chan = 16;
+	/* accept only 12 bits of data */
+	s->maxdata = 0x0fff;
+	/* device use one of the ranges */
+	s->range_table = &range_fl512;
+	/* function to call when read AD */
+	s->insn_read = fl512_ai_insn;
+	printk(KERN_INFO "comedi: fl512: subdevice 0 initialized\n");
 
 	/* Analog output */
 	s = dev->subdevices + 1;
-	s->type = COMEDI_SUBD_AO;	/* define subdevice as Analog OUT   */
-	s->subdev_flags = SDF_WRITABLE;	/* you can write it from userspace  */
-	s->n_chan = 2;		/* Number of Analog output channels */
-	s->maxdata = 0x0fff;	/* accept only 12 bits of data      */
-	s->range_table = &range_fl512;	/* device use one of the ranges     */
-	s->insn_write = fl512_ao_insn;	/* function to call when write DA   */
-	s->insn_read = fl512_ao_insn_readback;	/* function to call when reading DA   */
-	printk("comedi: fl512: subdevice 1 initialized\n");
+	/* define subdevice as Analog OUT */
+	s->type = COMEDI_SUBD_AO;
+	/* you can write it from userspace */
+	s->subdev_flags = SDF_WRITABLE;
+	/* Number of Analog output channels */
+	s->n_chan = 2;
+	/* accept only 12 bits of data */
+	s->maxdata = 0x0fff;
+	/* device use one of the ranges */
+	s->range_table = &range_fl512;
+	/* function to call when write DA */
+	s->insn_write = fl512_ao_insn;
+	/* function to call when reading DA */
+	s->insn_read = fl512_ao_insn_readback;
+	printk(KERN_INFO "comedi: fl512: subdevice 1 initialized\n");
 
 	return 1;
 }
@@ -186,6 +202,6 @@ static int fl512_detach(struct comedi_device *dev)
 {
 	if (dev->iobase)
 		release_region(dev->iobase, FL512_SIZE);
-	printk("comedi%d: fl512: dummy i detach\n", dev->minor);
+	printk(KERN_INFO "comedi%d: fl512: dummy i detach\n", dev->minor);
 	return 0;
 }

drivers/staging/comedi/drivers/jr3_pci.c

@@ -954,6 +954,8 @@ out:
 	return result;
 }
 
+MODULE_FIRMWARE("comedi/jr3pci.idm");
+
 static int jr3_pci_detach(struct comedi_device *dev)
 {
 	int i;

drivers/staging/comedi/drivers/mpc624.c

@@ -284,7 +284,7 @@ static int mpc624_ai_rinsn(struct comedi_device *dev,
 	outb(insn->chanspec, dev->iobase + MPC624_GNMUXCH);
 /* printk("Channel %d: \n", insn->chanspec); */
 	if (!insn->n) {
-		printk("MPC624: Warning, no data to aquire\n");
+		printk("MPC624: Warning, no data to acquire\n");
 		return 0;
 	}
 

drivers/staging/comedi/drivers/ni_65xx.c

@@ -26,12 +26,13 @@
 /*
 Driver: ni_65xx
 Description: National Instruments 65xx static dio boards
-Author: Jon Grierson <jd@renko.co.uk>, Frank Mori Hess <fmhess@users.sourceforge.net>
+Author: Jon Grierson <jd@renko.co.uk>,
+	Frank Mori Hess <fmhess@users.sourceforge.net>
 Status: testing
-Devices: [National Instruments] PCI-6509 (ni_65xx), PXI-6509, PCI-6510, PCI-6511,
-  PXI-6511, PCI-6512, PXI-6512, PCI-6513, PXI-6513, PCI-6514, PXI-6514, PCI-6515,
-  PXI-6515, PCI-6516, PCI-6517, PCI-6518, PCI-6519, PCI-6520, PCI-6521, PXI-6521,
-  PCI-6528, PXI-6528
+Devices: [National Instruments] PCI-6509 (ni_65xx), PXI-6509, PCI-6510,
+  PCI-6511, PXI-6511, PCI-6512, PXI-6512, PCI-6513, PXI-6513, PCI-6514,
+  PXI-6514, PCI-6515, PXI-6515, PCI-6516, PCI-6517, PCI-6518, PCI-6519,
+  PCI-6520, PCI-6521, PXI-6521, PCI-6528, PXI-6528
 Updated: Wed Oct 18 08:59:11 EDT 2006
 
 Based on the PCI-6527 driver by ds.
@@ -418,9 +419,10 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
 		return -EINVAL;
 	base_bitfield_channel = CR_CHAN(insn->chanspec);
 	for (j = 0; j < max_ports_per_bitfield; ++j) {
-		const unsigned port_offset = ni_65xx_port_by_channel(base_bitfield_channel) + j;
+		const unsigned port_offset =
+			ni_65xx_port_by_channel(base_bitfield_channel) + j;
 		const unsigned port =
-		    sprivate(s)->base_port + port_offset;
+			sprivate(s)->base_port + port_offset;
 		unsigned base_port_channel;
 		unsigned port_mask, port_data, port_read_bits;
 		int bitshift;
@@ -463,11 +465,11 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
 			 * subdevice.) */
 			port_read_bits ^= 0xFF;
 		}
-		if (bitshift > 0) {
+		if (bitshift > 0)
 			port_read_bits <<= bitshift;
-		} else {
+		else
 			port_read_bits >>= -bitshift;
-		}
+
 		read_bits |= port_read_bits;
 	}
 	data[1] = read_bits;
@@ -532,7 +534,8 @@ static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* step 2: make sure trigger sources are unique and mutually
+	compatible */
 
 	if (err)
 		return 2;
@@ -652,7 +655,7 @@ static int ni_65xx_attach(struct comedi_device *dev,
 	unsigned i;
 	int ret;
 
-	printk("comedi%d: ni_65xx:", dev->minor);
+	printk(KERN_INFO "comedi%d: ni_65xx:", dev->minor);
 
 	ret = alloc_private(dev, sizeof(struct ni_65xx_private));
 	if (ret < 0)
@@ -664,15 +667,15 @@ static int ni_65xx_attach(struct comedi_device *dev,
 
 	ret = mite_setup(private(dev)->mite);
 	if (ret < 0) {
-		printk("error setting up mite\n");
+		printk(KERN_WARNING "error setting up mite\n");
 		return ret;
 	}
 
 	dev->board_name = board(dev)->name;
 	dev->irq = mite_irq(private(dev)->mite);
-	printk(" %s", dev->board_name);
+	printk(KERN_INFO " %s", dev->board_name);
 
-	printk(" ID=0x%02x",
+	printk(KERN_INFO " ID=0x%02x",
 	       readb(private(dev)->mite->daq_io_addr + ID_Register));
 
 	ret = alloc_subdevices(dev, 4);
@@ -773,7 +776,7 @@ static int ni_65xx_attach(struct comedi_device *dev,
 			  "ni_65xx", dev);
 	if (ret < 0) {
 		dev->irq = 0;
-		printk(" irq not available");
+		printk(KERN_WARNING " irq not available");
 	}
 
 	printk("\n");
@@ -790,21 +793,17 @@ static int ni_65xx_detach(struct comedi_device *dev)
 		       Master_Interrupt_Control);
 	}
 
-	if (dev->irq) {
+	if (dev->irq)
 		free_irq(dev->irq, dev);
-	}
 
 	if (private(dev)) {
 		unsigned i;
 		for (i = 0; i < dev->n_subdevices; ++i) {
-			if (dev->subdevices[i].private) {
-				kfree(dev->subdevices[i].private);
-				dev->subdevices[i].private = NULL;
-			}
+			kfree(dev->subdevices[i].private);
+			dev->subdevices[i].private = NULL;
 		}
-		if (private(dev)->mite) {
+		if (private(dev)->mite)
 			mite_unsetup(private(dev)->mite);
-		}
 	}
 	return 0;
 }
@@ -830,7 +829,7 @@ static int ni_65xx_find_device(struct comedi_device *dev, int bus, int slot)
 			}
 		}
 	}
-	printk("no device found\n");
+	printk(KERN_WARNING "no device found\n");
 	mite_list_devices();
 	return -EIO;
 }

drivers/staging/comedi/drivers/ni_660x.c

@@ -52,7 +52,8 @@ enum ni_660x_constants {
 };
 
 #define NUM_PFI_CHANNELS 40
-/* really there are only up to 3 dma channels, but the register layout allows for 4 */
+/* really there are only up to 3 dma channels, but the register layout allows
+for 4 */
 #define MAX_DMA_CHANNEL 4
 
 /* See Register-Level Programmer Manual page 3.1 */
@@ -198,7 +199,7 @@ struct NI_660xRegisterData {
 	const char *name;	/*  Register Name */
 	int offset;		/*  Offset from base address from GPCT chip */
 	enum ni_660x_register_direction direction;
-	enum ni_660x_register_width size;	/*  1 byte, 2 bytes, or 4 bytes */
+	enum ni_660x_register_width size; /* 1 byte, 2 bytes, or 4 bytes */
 };
 
 static const struct NI_660xRegisterData registerData[NumRegisters] = {
@@ -382,8 +383,8 @@ enum global_interrupt_config_register_bits {
 };
 
 /* Offset of the GPCT chips from the base-adress of the card */
-static const unsigned GPCT_OFFSET[2] = { 0x0, 0x800 };	/* First chip is at base-address +
-							   0x00, etc. */
+/* First chip is at base-address + 0x00, etc. */
+static const unsigned GPCT_OFFSET[2] = { 0x0, 0x800 };
 
 /* Board description*/
 struct ni_660x_board {
@@ -691,13 +692,13 @@ static enum NI_660x_Register ni_gpct_to_660x_register(enum ni_gpct_register reg)
 		ni_660x_register = G0StatusRegister;
 		break;
 	case NITIO_G1_Status_Reg:
-		ni_660x_register = G0StatusRegister;
+		ni_660x_register = G1StatusRegister;
 		break;
 	case NITIO_G2_Status_Reg:
-		ni_660x_register = G0StatusRegister;
+		ni_660x_register = G2StatusRegister;
 		break;
 	case NITIO_G3_Status_Reg:
-		ni_660x_register = G0StatusRegister;
+		ni_660x_register = G3StatusRegister;
 		break;
 	case NITIO_G0_Interrupt_Enable_Reg:
 		ni_660x_register = G0InterruptEnable;
@@ -712,7 +713,7 @@ static enum NI_660x_Register ni_gpct_to_660x_register(enum ni_gpct_register reg)
 		ni_660x_register = G3InterruptEnable;
 		break;
 	default:
-		printk("%s: unhandled register 0x%x in switch.\n",
+		printk(KERN_WARNING "%s: unhandled register 0x%x in switch.\n",
 		       __func__, reg);
 		BUG();
 		return 0;
@@ -737,7 +738,7 @@ static inline void ni_660x_write_register(struct comedi_device *dev,
 		writel(bits, write_address);
 		break;
 	default:
-		printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
+		printk(KERN_WARNING "%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
 		       __FILE__, __func__, reg);
 		BUG();
 		break;
@@ -760,7 +761,7 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev,
 		return readl(read_address);
 		break;
 	default:
-		printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
+		printk(KERN_WARNING "%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
 		       __FILE__, __func__, reg);
 		BUG();
 		break;
@@ -993,9 +994,9 @@ static int ni_660x_allocate_private(struct comedi_device *dev)
 	spin_lock_init(&private(dev)->mite_channel_lock);
 	spin_lock_init(&private(dev)->interrupt_lock);
 	spin_lock_init(&private(dev)->soft_reg_copy_lock);
-	for (i = 0; i < NUM_PFI_CHANNELS; ++i) {
+	for (i = 0; i < NUM_PFI_CHANNELS; ++i)
 		private(dev)->pfi_output_selects[i] = pfi_output_select_counter;
-	}
+
 	return 0;
 }
 
@@ -1008,9 +1009,8 @@ static int ni_660x_alloc_mite_rings(struct comedi_device *dev)
 		for (j = 0; j < counters_per_chip; ++j) {
 			private(dev)->mite_rings[i][j] =
 			    mite_alloc_ring(private(dev)->mite);
-			if (private(dev)->mite_rings[i][j] == NULL) {
+			if (private(dev)->mite_rings[i][j] == NULL)
 				return -ENOMEM;
-			}
 		}
 	}
 	return 0;
@@ -1022,9 +1022,8 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev)
 	unsigned j;
 
 	for (i = 0; i < board(dev)->n_chips; ++i) {
-		for (j = 0; j < counters_per_chip; ++j) {
+		for (j = 0; j < counters_per_chip; ++j)
 			mite_free_ring(private(dev)->mite_rings[i][j]);
-		}
 	}
 }
 
@@ -1036,7 +1035,7 @@ static int ni_660x_attach(struct comedi_device *dev,
 	unsigned i;
 	unsigned global_interrupt_config_bits;
 
-	printk("comedi%d: ni_660x: ", dev->minor);
+	printk(KERN_INFO "comedi%d: ni_660x: ", dev->minor);
 
 	ret = ni_660x_allocate_private(dev);
 	if (ret < 0)
@@ -1049,7 +1048,7 @@ static int ni_660x_attach(struct comedi_device *dev,
 
 	ret = mite_setup2(private(dev)->mite, 1);
 	if (ret < 0) {
-		printk("error setting up mite\n");
+		printk(KERN_WARNING "error setting up mite\n");
 		return ret;
 	}
 	comedi_set_hw_dev(dev, &private(dev)->mite->pcidev->dev);
@@ -1057,7 +1056,7 @@ static int ni_660x_attach(struct comedi_device *dev,
 	if (ret < 0)
 		return ret;
 
-	printk(" %s ", dev->board_name);
+	printk(KERN_INFO " %s ", dev->board_name);
 
 	dev->n_subdevices = 2 + NI_660X_MAX_NUM_COUNTERS;
 
@@ -1078,15 +1077,16 @@ static int ni_660x_attach(struct comedi_device *dev,
 	s->insn_bits = ni_660x_dio_insn_bits;
 	s->insn_config = ni_660x_dio_insn_config;
 	s->io_bits = 0;		/* all bits default to input */
-	/*  we use the ioconfig registers to control dio direction, so zero output enables in stc dio control reg */
+	/*  we use the ioconfig registers to control dio direction, so zero
+	output enables in stc dio control reg */
 	ni_660x_write_register(dev, 0, 0, STCDIOControl);
 
 	private(dev)->counter_dev = ni_gpct_device_construct(dev,
-							     &ni_gpct_write_register,
-							     &ni_gpct_read_register,
-							     ni_gpct_variant_660x,
-							     ni_660x_num_counters
-							     (dev));
+						     &ni_gpct_write_register,
+						     &ni_gpct_read_register,
+						     ni_gpct_variant_660x,
+						     ni_660x_num_counters
+						     (dev));
 	if (private(dev)->counter_dev == NULL)
 		return -ENOMEM;
 	for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) {
@@ -1118,12 +1118,12 @@ static int ni_660x_attach(struct comedi_device *dev,
 			s->type = COMEDI_SUBD_UNUSED;
 		}
 	}
-	for (i = 0; i < board(dev)->n_chips; ++i) {
+	for (i = 0; i < board(dev)->n_chips; ++i)
 		init_tio_chip(dev, i);
-	}
-	for (i = 0; i < ni_660x_num_counters(dev); ++i) {
+
+	for (i = 0; i < ni_660x_num_counters(dev); ++i)
 		ni_tio_init_counter(&private(dev)->counter_dev->counters[i]);
-	}
+
 	for (i = 0; i < NUM_PFI_CHANNELS; ++i) {
 		if (i < min_counter_pfi_chan)
 			ni_660x_set_pfi_routing(dev, i, pfi_output_select_do);
@@ -1134,13 +1134,13 @@ static int ni_660x_attach(struct comedi_device *dev,
 	}
 	/* to be safe, set counterswap bits on tio chips after all the counter
 	   outputs have been set to high impedance mode */
-	for (i = 0; i < board(dev)->n_chips; ++i) {
+	for (i = 0; i < board(dev)->n_chips; ++i)
 		set_tio_counterswap(dev, i);
-	}
+
 	ret = request_irq(mite_irq(private(dev)->mite), ni_660x_interrupt,
 			  IRQF_SHARED, "ni_660x", dev);
 	if (ret < 0) {
-		printk(" irq not available\n");
+		printk(KERN_WARNING " irq not available\n");
 		return ret;
 	}
 	dev->irq = mite_irq(private(dev)->mite);
@@ -1149,13 +1149,13 @@ static int ni_660x_attach(struct comedi_device *dev,
 		global_interrupt_config_bits |= Cascade_Int_Enable_Bit;
 	ni_660x_write_register(dev, 0, global_interrupt_config_bits,
 			       GlobalInterruptConfigRegister);
-	printk("attached\n");
+	printk(KERN_INFO "attached\n");
 	return 0;
 }
 
 static int ni_660x_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: ni_660x: remove\n", dev->minor);
+	printk(KERN_INFO "comedi%d: ni_660x: remove\n", dev->minor);
 
 	/* Free irq */
 	if (dev->irq)
@@ -1193,9 +1193,8 @@ static void init_tio_chip(struct comedi_device *dev, int chipset)
 			       private(dev)->
 			       dma_configuration_soft_copies[chipset],
 			       DMAConfigRegister);
-	for (i = 0; i < NUM_PFI_CHANNELS; ++i) {
+	for (i = 0; i < NUM_PFI_CHANNELS; ++i)
 		ni_660x_write_register(dev, chipset, 0, IOConfigReg(i));
-	}
 }
 
 static int
@@ -1234,7 +1233,7 @@ static int ni_660x_find_device(struct comedi_device *dev, int bus, int slot)
 			}
 		}
 	}
-	printk("no device found\n");
+	printk(KERN_WARNING "no device found\n");
 	mite_list_devices();
 	return -EIO;
 }