Merge branch 'perf/urgent' into perf/core

Merge Reason: to pick the fix:

 commit e7f01d1
     perf tools: Use scnprintf where applicable

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

MAINTAINERS

@@ -2845,6 +2845,12 @@ S:	Maintained
 F:	drivers/media/video/m5mols/
 F:	include/media/m5mols.h
 
+FUJITSU TABLET EXTRAS
+M:	Robert Gerlach <khnz@gmx.de>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	drivers/platform/x86/fujitsu-tablet.c
+
 FUSE: FILESYSTEM IN USERSPACE
 M:	Miklos Szeredi <miklos@szeredi.hu>
 L:	fuse-devel@lists.sourceforge.net

arch/arm/mach-shmobile/board-ag5evm.c

@@ -38,6 +38,7 @@
 #include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/sh_clk.h>
+#include <linux/videodev2.h>
 #include <video/sh_mobile_lcdc.h>
 #include <video/sh_mipi_dsi.h>
 #include <sound/sh_fsi.h>

arch/arm/mach-shmobile/board-ap4evb.c

@@ -794,7 +794,7 @@ static struct fsi_ak4642_info fsi2_ak4643_info = {
 static struct platform_device fsi_ak4643_device = {
 	.name	= "fsi-ak4642-audio",
 	.dev	= {
-		.platform_data	= &fsi_info,
+		.platform_data	= &fsi2_ak4643_info,
 	},
 };
 

arch/arm/mach-shmobile/board-bonito.c

@@ -27,6 +27,7 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/smsc911x.h>
+#include <linux/videodev2.h>
 #include <mach/common.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -241,7 +242,7 @@ static struct sh_mobile_lcdc_info lcdc0_info = {
 	.clock_source	= LCDC_CLK_BUS,
 	.ch[0] = {
 		.chan			= LCDC_CHAN_MAINLCD,
-		.bpp			= 16,
+		.fourcc = V4L2_PIX_FMT_RGB565,
 		.interface_type		= RGB24,
 		.clock_divider		= 5,
 		.flags			= 0,

arch/arm/mach-shmobile/board-mackerel.c

@@ -1352,6 +1352,10 @@ static struct map_desc mackerel_io_desc[] __initdata = {
 static void __init mackerel_map_io(void)
 {
 	iotable_init(mackerel_io_desc, ARRAY_SIZE(mackerel_io_desc));
+	/* DMA memory at 0xff200000 - 0xffdfffff. The default 2MB size isn't
+	 * enough to allocate the frame buffer memory.
+	 */
+	init_consistent_dma_size(12 << 20);
 
 	/* setup early devices and console here as well */
 	sh7372_add_early_devices();

arch/sh/kernel/cpu/sh2a/ex.S

@@ -66,6 +66,7 @@ vector	=	0
 	.long	exception_entry0 + vector * 6
 vector	=	vector + 1
 	.endr
+vector	=	0
 	.rept	256
 	.long	exception_entry1 + vector * 6
 vector	=	vector + 1

arch/sh/kernel/cpu/sh4a/clock-sh7757.c

@@ -79,7 +79,7 @@ struct clk div4_clks[DIV4_NR] = {
 #define MSTPCR1		0xffc80034
 #define MSTPCR2		0xffc10028
 
-enum { MSTP004, MSTP000, MSTP114, MSTP113, MSTP112,
+enum { MSTP004, MSTP000, MSTP127, MSTP114, MSTP113, MSTP112,
        MSTP111, MSTP110, MSTP103, MSTP102, MSTP220,
        MSTP_NR };
 
@@ -89,6 +89,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP000] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 0, 0),
 
 	/* MSTPCR1 */
+	[MSTP127] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 27, 0),
 	[MSTP114] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 14, 0),
 	[MSTP113] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 13, 0),
 	[MSTP112] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR1, 12, 0),
@@ -131,6 +132,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("usb_fck", &mstp_clks[MSTP103]),
 	CLKDEV_DEV_ID("renesas_usbhs.0", &mstp_clks[MSTP102]),
 	CLKDEV_CON_ID("mmc0", &mstp_clks[MSTP220]),
+	CLKDEV_CON_ID("rspi2", &mstp_clks[MSTP127]),
 };
 
 int __init arch_clk_init(void)

arch/sh/kernel/cpu/sh4a/clock-sh7785.c

@@ -156,7 +156,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("siof_fck", &mstp_clks[MSTP003]),
 	CLKDEV_CON_ID("hspi_fck", &mstp_clks[MSTP002]),
 	CLKDEV_CON_ID("hudi_fck", &mstp_clks[MSTP119]),
-	CLKDEV_CON_ID("ubc_fck", &mstp_clks[MSTP117]),
+	CLKDEV_CON_ID("ubc0", &mstp_clks[MSTP117]),
 	CLKDEV_CON_ID("dmac_11_6_fck", &mstp_clks[MSTP105]),
 	CLKDEV_CON_ID("dmac_5_0_fck", &mstp_clks[MSTP104]),
 	CLKDEV_CON_ID("gdta_fck", &mstp_clks[MSTP100]),

arch/sparc/Makefile

@@ -31,7 +31,7 @@ UTS_MACHINE    := sparc
 
 #KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
 KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
-KBUILD_AFLAGS += -m32
+KBUILD_AFLAGS += -m32 -Wa,-Av8
 
 #LDFLAGS_vmlinux = -N -Ttext 0xf0004000
 #  Since 2.5.40, the first stage is left not btfix-ed.

arch/tile/kernel/compat_signal.c

@@ -303,10 +303,7 @@ long compat_sys_rt_sigreturn(struct pt_regs *regs)
 		goto badframe;
 
 	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	set_current_blocked(&set);
 
 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
 		goto badframe;

arch/tile/kernel/signal.c

@@ -97,10 +97,7 @@ SYSCALL_DEFINE1(rt_sigreturn, struct pt_regs *, regs)
 		goto badframe;
 
 	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	set_current_blocked(&set);
 
 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
 		goto badframe;
@@ -286,13 +283,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
 		 * the work_pending path in the return-to-user code, and
 		 * either way we can re-enable interrupts unconditionally.
 		 */
-		spin_lock_irq(&current->sighand->siglock);
-		sigorsets(&current->blocked,
-			  &current->blocked, &ka->sa.sa_mask);
-		if (!(ka->sa.sa_flags & SA_NODEFER))
-			sigaddset(&current->blocked, sig);
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
+		block_sigmask(ka, sig);
 	}
 
 	return ret;

arch/tile/kernel/sysfs.c

@@ -163,7 +163,7 @@ static int __init create_sysfs_entries(void)
 
 #define create_hv_attr(name)						\
 	if (!err)							\
-		err = sysfs_create_file(hypervisor_kobj, &dev_attr_##name);
+		err = sysfs_create_file(hypervisor_kobj, &dev_attr_##name.attr);
 	create_hv_attr(type);
 	create_hv_attr(version);
 	create_hv_attr(config_version);

arch/tile/lib/spinlock_32.c

@@ -144,7 +144,7 @@ void arch_read_unlock(arch_rwlock_t *rwlock)
 	for (;;) {
 		__insn_mtspr(SPR_INTERRUPT_CRITICAL_SECTION, 1);
 		val = __insn_tns((int *)&rwlock->lock);
-		if (likely(val & 1) == 0) {
+		if (likely((val & 1) == 0)) {
 			rwlock->lock = val - (1 << _RD_COUNT_SHIFT);
 			__insn_mtspr(SPR_INTERRUPT_CRITICAL_SECTION, 0);
 			break;

drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c

@@ -1934,7 +1934,7 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	}
 
 	if (bp->port.pmf)
-		bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
+		bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
 	else
 		bnx2x__link_status_update(bp);
 

drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h

@@ -1179,10 +1179,16 @@ static inline int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp,
  */
 static inline u8 bnx2x_stats_id(struct bnx2x_fastpath *fp)
 {
-	if (!CHIP_IS_E1x(fp->bp))
+	struct bnx2x *bp = fp->bp;
+	if (!CHIP_IS_E1x(bp)) {
+#ifdef BCM_CNIC
+		/* there are special statistics counters for FCoE 136..140 */
+		if (IS_FCOE_FP(fp))
+			return bp->cnic_base_cl_id + (bp->pf_num >> 1);
+#endif
 		return fp->cl_id;
-	else
-		return fp->cl_id + BP_PORT(fp->bp) * FP_SB_MAX_E1x;
+	}
+	return fp->cl_id + BP_PORT(bp) * FP_SB_MAX_E1x;
 }
 
 static inline void bnx2x_init_vlan_mac_fp_objs(struct bnx2x_fastpath *fp,

drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c

@@ -735,7 +735,9 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 						 bp->dcbx_error);
 
 			/* mark DCBX result for PMF migration */
-			bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 1);
+			bnx2x_update_drv_flags(bp,
+					       1 << DRV_FLAGS_DCB_CONFIGURED,
+					       1);
 #ifdef BCM_DCBNL
 			/*
 			 * Add new app tlvs to dcbnl
@@ -1020,7 +1022,7 @@ void bnx2x_dcbx_init(struct bnx2x *bp)
 		DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
 		   dcbx_lldp_params_offset);
 
-		bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
+		bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
 
 		if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
 			bnx2x_dcbx_admin_mib_updated_params(bp,
@@ -1857,7 +1859,7 @@ void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
 	 * read it from shmem and update bp and netdev accordingly
 	 */
 	if (SHMEM2_HAS(bp, drv_flags) &&
-	   GET_FLAGS(SHMEM2_RD(bp, drv_flags), DRV_FLAGS_DCB_CONFIGURED)) {
+	   GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
 		/* Read neg results if dcbx is in the FW */
 		if (bnx2x_dcbx_read_shmem_neg_results(bp))
 			return;

drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c

@@ -5601,7 +5601,7 @@ static inline int bnx2x_func_send_start(struct bnx2x *bp,
 
 	/* Fill the ramrod data with provided parameters */
 	rdata->function_mode = cpu_to_le16(start_params->mf_mode);
-	rdata->sd_vlan_tag   = start_params->sd_vlan_tag;
+	rdata->sd_vlan_tag   = cpu_to_le16(start_params->sd_vlan_tag);
 	rdata->path_id       = BP_PATH(bp);
 	rdata->network_cos_mode = start_params->network_cos_mode;
 

drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c

@@ -554,23 +554,11 @@ static void bnx2x_bmac_stats_update(struct bnx2x *bp)
 		UPDATE_STAT64(tx_stat_gtufl, tx_stat_mac_ufl);
 
 		/* collect PFC stats */
-		DIFF_64(diff.hi, new->tx_stat_gtpp_hi,
-			pstats->pfc_frames_tx_hi,
-			diff.lo, new->tx_stat_gtpp_lo,
-			pstats->pfc_frames_tx_lo);
 		pstats->pfc_frames_tx_hi = new->tx_stat_gtpp_hi;
 		pstats->pfc_frames_tx_lo = new->tx_stat_gtpp_lo;
-		ADD_64(pstats->pfc_frames_tx_hi, diff.hi,
-			pstats->pfc_frames_tx_lo, diff.lo);
 
-		DIFF_64(diff.hi, new->rx_stat_grpp_hi,
-			pstats->pfc_frames_rx_hi,
-			diff.lo, new->rx_stat_grpp_lo,
-			pstats->pfc_frames_rx_lo);
 		pstats->pfc_frames_rx_hi = new->rx_stat_grpp_hi;
 		pstats->pfc_frames_rx_lo = new->rx_stat_grpp_lo;
-		ADD_64(pstats->pfc_frames_rx_hi, diff.hi,
-			pstats->pfc_frames_rx_lo, diff.lo);
 	}
 
 	estats->pause_frames_received_hi =

drivers/net/tun.c

@@ -359,7 +359,7 @@ static void tun_free_netdev(struct net_device *dev)
 {
 	struct tun_struct *tun = netdev_priv(dev);
 
-	sock_put(tun->socket.sk);
+	sk_release_kernel(tun->socket.sk);
 }
 
 /* Net device open. */
@@ -980,10 +980,18 @@ static int tun_recvmsg(struct kiocb *iocb, struct socket *sock,
 	return ret;
 }
 
+static int tun_release(struct socket *sock)
+{
+	if (sock->sk)
+		sock_put(sock->sk);
+	return 0;
+}
+
 /* Ops structure to mimic raw sockets with tun */
 static const struct proto_ops tun_socket_ops = {
 	.sendmsg = tun_sendmsg,
 	.recvmsg = tun_recvmsg,
+	.release = tun_release,
 };
 
 static struct proto tun_proto = {
@@ -1110,10 +1118,11 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 		tun->vnet_hdr_sz = sizeof(struct virtio_net_hdr);
 
 		err = -ENOMEM;
-		sk = sk_alloc(net, AF_UNSPEC, GFP_KERNEL, &tun_proto);
+		sk = sk_alloc(&init_net, AF_UNSPEC, GFP_KERNEL, &tun_proto);
 		if (!sk)
 			goto err_free_dev;
 
+		sk_change_net(sk, net);
 		tun->socket.wq = &tun->wq;
 		init_waitqueue_head(&tun->wq.wait);
 		tun->socket.ops = &tun_socket_ops;
@@ -1174,7 +1183,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 	return 0;
 
  err_free_sk:
-	sock_put(sk);
+	tun_free_netdev(dev);
  err_free_dev:
 	free_netdev(dev);
  failed:

drivers/net/usb/asix.c

@@ -1598,6 +1598,10 @@ static const struct usb_device_id	products [] = {
 	// Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
 	USB_DEVICE (0x6189, 0x182d),
 	.driver_info =  (unsigned long) &ax8817x_info,
+}, {
+	// Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
+	USB_DEVICE (0x0df6, 0x0056),
+	.driver_info =  (unsigned long) &ax88178_info,
 }, {
 	// corega FEther USB2-TX
 	USB_DEVICE (0x07aa, 0x0017),

drivers/net/wireless/iwlegacy/3945-mac.c

@@ -2475,7 +2475,7 @@ il3945_bg_alive_start(struct work_struct *data)
 	    container_of(data, struct il_priv, alive_start.work);
 
 	mutex_lock(&il->mutex);
-	if (test_bit(S_EXIT_PENDING, &il->status))
+	if (test_bit(S_EXIT_PENDING, &il->status) || il->txq == NULL)
 		goto out;
 
 	il3945_alive_start(il);

drivers/net/wireless/iwlegacy/3945.c

@@ -1870,11 +1870,12 @@ il3945_bg_reg_txpower_periodic(struct work_struct *work)
 	struct il_priv *il = container_of(work, struct il_priv,
 					  _3945.thermal_periodic.work);
 
-	if (test_bit(S_EXIT_PENDING, &il->status))
-		return;
-
 	mutex_lock(&il->mutex);
+	if (test_bit(S_EXIT_PENDING, &il->status) || il->txq == NULL)
+		goto out;
+
 	il3945_reg_txpower_periodic(il);
+out:
 	mutex_unlock(&il->mutex);
 }
 

drivers/net/wireless/rt2x00/rt2x00dev.c

@@ -426,10 +426,14 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 	/*
 	 * If the data queue was below the threshold before the txdone
 	 * handler we must make sure the packet queue in the mac80211 stack
-	 * is reenabled when the txdone handler has finished.
+	 * is reenabled when the txdone handler has finished. This has to be
+	 * serialized with rt2x00mac_tx(), otherwise we can wake up queue
+	 * before it was stopped.
 	 */
+	spin_lock_bh(&entry->queue->tx_lock);
 	if (!rt2x00queue_threshold(entry->queue))
 		rt2x00queue_unpause_queue(entry->queue);
+	spin_unlock_bh(&entry->queue->tx_lock);
 }
 EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
 

drivers/net/wireless/rt2x00/rt2x00mac.c

@@ -152,13 +152,22 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	if (unlikely(rt2x00queue_write_tx_frame(queue, skb, false)))
 		goto exit_fail;
 
+	/*
+	 * Pausing queue has to be serialized with rt2x00lib_txdone(). Note
+	 * we should not use spin_lock_bh variant as bottom halve was already
+	 * disabled before ieee80211_xmit() call.
+	 */
+	spin_lock(&queue->tx_lock);
 	if (rt2x00queue_threshold(queue))
 		rt2x00queue_pause_queue(queue);
+	spin_unlock(&queue->tx_lock);
 
 	return;
 
  exit_fail:
+	spin_lock(&queue->tx_lock);
 	rt2x00queue_pause_queue(queue);
+	spin_unlock(&queue->tx_lock);
  exit_free_skb:
 	ieee80211_free_txskb(hw, skb);
 }

drivers/net/wireless/rt2x00/rt2x00queue.c

@@ -619,6 +619,9 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
 	else if (test_bit(REQUIRE_DMA, &queue->rt2x00dev->cap_flags))
 		rt2x00queue_align_frame(skb);
 
+	/*
+	 * That function must be called with bh disabled.
+	 */
 	spin_lock(&queue->tx_lock);
 
 	if (unlikely(rt2x00queue_full(queue))) {

drivers/pci/pcie/aspm.c

@@ -500,6 +500,9 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
 	int pos;
 	u32 reg32;
 
+	if (aspm_disabled)
+		return 0;
+
 	/*
 	 * Some functions in a slot might not all be PCIe functions,
 	 * very strange. Disable ASPM for the whole slot

drivers/platform/x86/Kconfig

@@ -143,6 +143,30 @@ config FUJITSU_LAPTOP_DEBUG
 
 	  If you are not sure, say N here.
 
+config FUJITSU_TABLET
+       tristate "Fujitsu Tablet Extras"
+       depends on ACPI
+       depends on INPUT
+       ---help---
+         This is a driver for tablets built by Fujitsu:
+
+           * Lifebook P1510/P1610/P1620/Txxxx
+           * Stylistic ST5xxx
+           * Possibly other Fujitsu tablet models
+
+         It adds support for the panel buttons, docking station detection,
+         tablet/notebook mode detection for convertible and
+         orientation detection for docked slates.
+
+         If you have a Fujitsu convertible or slate, say Y or M here.
+
+config AMILO_RFKILL
+	tristate "Fujitsu-Siemens Amilo rfkill support"
+	depends on RFKILL
+	---help---
+	  This is a driver for enabling wifi on some Fujitsu-Siemens Amilo
+	  laptops.
+
 config TC1100_WMI
 	tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
 	depends on !X86_64

drivers/platform/x86/Makefile

@@ -17,12 +17,14 @@ obj-$(CONFIG_ACER_WMI)		+= acer-wmi.o
 obj-$(CONFIG_ACERHDF)		+= acerhdf.o
 obj-$(CONFIG_HP_ACCEL)		+= hp_accel.o
 obj-$(CONFIG_HP_WMI)		+= hp-wmi.o
+obj-$(CONFIG_AMILO_RFKILL)	+= amilo-rfkill.o
 obj-$(CONFIG_TC1100_WMI)	+= tc1100-wmi.o
 obj-$(CONFIG_SONY_LAPTOP)	+= sony-laptop.o
 obj-$(CONFIG_IDEAPAD_LAPTOP)	+= ideapad-laptop.o
 obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o
 obj-$(CONFIG_SENSORS_HDAPS)	+= hdaps.o
 obj-$(CONFIG_FUJITSU_LAPTOP)	+= fujitsu-laptop.o
+obj-$(CONFIG_FUJITSU_TABLET)	+= fujitsu-tablet.o
 obj-$(CONFIG_PANASONIC_LAPTOP)	+= panasonic-laptop.o
 obj-$(CONFIG_INTEL_MENLOW)	+= intel_menlow.o
 obj-$(CONFIG_ACPI_WMI)		+= wmi.o

drivers/platform/x86/acer-wmi.c

@@ -679,6 +679,32 @@ static acpi_status AMW0_find_mailled(void)
 	return AE_OK;
 }
 
+static int AMW0_set_cap_acpi_check_device_found;
+
+static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
+	u32 level, void *context, void **retval)
+{
+	AMW0_set_cap_acpi_check_device_found = 1;
+	return AE_OK;
+}
+
+static const struct acpi_device_id norfkill_ids[] = {
+	{ "VPC2004", 0},
+	{ "IBM0068", 0},
+	{ "LEN0068", 0},
+	{ "", 0},
+};
+
+static int AMW0_set_cap_acpi_check_device(void)
+{
+	const struct acpi_device_id *id;
+
+	for (id = norfkill_ids; id->id[0]; id++)
+		acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
+				NULL, NULL);
+	return AMW0_set_cap_acpi_check_device_found;
+}
+
 static acpi_status AMW0_set_capabilities(void)
 {
 	struct wmab_args args;
@@ -692,7 +718,9 @@ static acpi_status AMW0_set_capabilities(void)
 	 * work.
 	 */
 	if (wmi_has_guid(AMW0_GUID2)) {
-		interface->capability |= ACER_CAP_WIRELESS;
+		if ((quirks != &quirk_unknown) ||
+		    !AMW0_set_cap_acpi_check_device())
+			interface->capability |= ACER_CAP_WIRELESS;
 		return AE_OK;
 	}
 

drivers/platform/x86/amilo-rfkill.c

@@ -0,0 +1,173 @@
+/*
+ * Support for rfkill on some Fujitsu-Siemens Amilo laptops.
+ * Copyright 2011 Ben Hutchings.
+ *
+ * Based in part on the fsam7440 driver, which is:
+ * Copyright 2005 Alejandro Vidal Mata & Javier Vidal Mata.
+ * and on the fsaa1655g driver, which is:
+ * Copyright 2006 Martin Večeřa.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/dmi.h>
+#include <linux/i8042.h>
+#include <linux/io.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/rfkill.h>
+
+/*
+ * These values were obtained from disassembling and debugging the
+ * PM.exe program installed in the Fujitsu-Siemens AMILO A1655G
+ */
+#define A1655_WIFI_COMMAND	0x10C5
+#define A1655_WIFI_ON		0x25
+#define A1655_WIFI_OFF		0x45
+
+static int amilo_a1655_rfkill_set_block(void *data, bool blocked)
+{
+	u8 param = blocked ? A1655_WIFI_OFF : A1655_WIFI_ON;
+	int rc;
+
+	i8042_lock_chip();
+	rc = i8042_command(&param, A1655_WIFI_COMMAND);
+	i8042_unlock_chip();
+	return rc;
+}
+
+static const struct rfkill_ops amilo_a1655_rfkill_ops = {
+	.set_block = amilo_a1655_rfkill_set_block
+};
+
+/*
+ * These values were obtained from disassembling the PM.exe program
+ * installed in the Fujitsu-Siemens AMILO M 7440
+ */
+#define M7440_PORT1		0x118f
+#define M7440_PORT2		0x118e
+#define M7440_RADIO_ON1		0x12
+#define M7440_RADIO_ON2		0x80
+#define M7440_RADIO_OFF1	0x10
+#define M7440_RADIO_OFF2	0x00
+
+static int amilo_m7440_rfkill_set_block(void *data, bool blocked)
+{
+	u8 val1 = blocked ? M7440_RADIO_OFF1 : M7440_RADIO_ON1;
+	u8 val2 = blocked ? M7440_RADIO_OFF2 : M7440_RADIO_ON2;
+
+	outb(val1, M7440_PORT1);
+	outb(val2, M7440_PORT2);
+
+	/* Check whether the state has changed correctly */
+	if (inb(M7440_PORT1) != val1 || inb(M7440_PORT2) != val2)
+		return -EIO;
+
+	return 0;
+}
+
+static const struct rfkill_ops amilo_m7440_rfkill_ops = {
+	.set_block = amilo_m7440_rfkill_set_block
+};
+
+static const struct dmi_system_id __devinitdata amilo_rfkill_id_table[] = {
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+			DMI_MATCH(DMI_BOARD_NAME, "AMILO A1655"),
+		},
+		.driver_data = (void *)&amilo_a1655_rfkill_ops
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+			DMI_MATCH(DMI_BOARD_NAME, "AMILO M7440"),
+		},
+		.driver_data = (void *)&amilo_m7440_rfkill_ops
+	},
+	{}
+};
+
+static struct platform_device *amilo_rfkill_pdev;
+static struct rfkill *amilo_rfkill_dev;
+
+static int __devinit amilo_rfkill_probe(struct platform_device *device)
+{
+	const struct dmi_system_id *system_id =
+		dmi_first_match(amilo_rfkill_id_table);
+	int rc;
+
+	amilo_rfkill_dev = rfkill_alloc(KBUILD_MODNAME, &device->dev,
+					RFKILL_TYPE_WLAN,
+					system_id->driver_data, NULL);
+	if (!amilo_rfkill_dev)
+		return -ENOMEM;
+
+	rc = rfkill_register(amilo_rfkill_dev);
+	if (rc)
+		goto fail;
+
+	return 0;
+
+fail:
+	rfkill_destroy(amilo_rfkill_dev);
+	return rc;
+}
+
+static int amilo_rfkill_remove(struct platform_device *device)
+{
+	rfkill_unregister(amilo_rfkill_dev);
+	rfkill_destroy(amilo_rfkill_dev);
+	return 0;
+}
+
+static struct platform_driver amilo_rfkill_driver = {
+	.driver = {
+		.name	= KBUILD_MODNAME,
+		.owner	= THIS_MODULE,
+	},
+	.probe	= amilo_rfkill_probe,
+	.remove	= amilo_rfkill_remove,
+};
+
+static int __init amilo_rfkill_init(void)
+{
+	int rc;
+
+	if (dmi_first_match(amilo_rfkill_id_table) == NULL)
+		return -ENODEV;
+
+	rc = platform_driver_register(&amilo_rfkill_driver);
+	if (rc)
+		return rc;
+
+	amilo_rfkill_pdev = platform_device_register_simple(KBUILD_MODNAME, -1,
+							    NULL, 0);
+	if (IS_ERR(amilo_rfkill_pdev)) {
+		rc = PTR_ERR(amilo_rfkill_pdev);
+		goto fail;
+	}
+
+	return 0;
+
+fail:
+	platform_driver_unregister(&amilo_rfkill_driver);
+	return rc;
+}
+
+static void __exit amilo_rfkill_exit(void)
+{
+	platform_device_unregister(amilo_rfkill_pdev);
+	platform_driver_unregister(&amilo_rfkill_driver);
+}
+
+MODULE_AUTHOR("Ben Hutchings <ben@decadent.org.uk>");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(dmi, amilo_rfkill_id_table);
+
+module_init(amilo_rfkill_init);
+module_exit(amilo_rfkill_exit);

drivers/platform/x86/fujitsu-tablet.c

@@ -0,0 +1,478 @@
+/*
+ * Copyright (C) 2006-2012 Robert Gerlach <khnz@gmx.de>
+ * Copyright (C) 2005-2006 Jan Rychter <jan@rychter.com>
+ *
+ * You can redistribute and/or modify this program under the terms of the
+ * GNU General Public License version 2 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.,
+ * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/dmi.h>
+
+#define MODULENAME "fujitsu-tablet"
+
+#define ACPI_FUJITSU_CLASS "fujitsu"
+
+#define INVERT_TABLET_MODE_BIT      0x01
+#define FORCE_TABLET_MODE_IF_UNDOCK 0x02
+
+#define KEYMAP_LEN 16
+
+static const struct acpi_device_id fujitsu_ids[] = {
+	{ .id = "FUJ02BD" },
+	{ .id = "FUJ02BF" },
+	{ .id = "" }
+};
+
+struct fujitsu_config {
+	unsigned short keymap[KEYMAP_LEN];
+	unsigned int quirks;
+};
+
+static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initconst = {
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_SCROLLDOWN,
+	KEY_SCROLLUP,
+	KEY_DIRECTION,
+	KEY_LEFTCTRL,
+	KEY_BRIGHTNESSUP,
+	KEY_BRIGHTNESSDOWN,
+	KEY_BRIGHTNESS_ZERO,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_LEFTALT
+};
+
+static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initconst = {
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_PROG1,
+	KEY_PROG2,
+	KEY_DIRECTION,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_UP,
+	KEY_DOWN,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_LEFTCTRL,
+	KEY_LEFTALT
+};
+
+static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initconst = {
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_PRINT,
+	KEY_BACKSPACE,
+	KEY_SPACE,
+	KEY_ENTER,
+	KEY_BRIGHTNESSUP,
+	KEY_BRIGHTNESSDOWN,
+	KEY_DOWN,
+	KEY_UP,
+	KEY_SCROLLUP,
+	KEY_SCROLLDOWN,
+	KEY_LEFTCTRL,
+	KEY_LEFTALT
+};
+
+static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initconst = {
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_RESERVED,
+	KEY_MAIL,
+	KEY_DIRECTION,
+	KEY_ESC,
+	KEY_ENTER,
+	KEY_BRIGHTNESSUP,
+	KEY_BRIGHTNESSDOWN,
+	KEY_DOWN,
+	KEY_UP,
+	KEY_SCROLLUP,
+	KEY_SCROLLDOWN,
+	KEY_LEFTCTRL,
+	KEY_LEFTALT
+};
+
+static struct {
+	struct input_dev *idev;
+	struct fujitsu_config config;
+	unsigned long prev_keymask;
+
+	char phys[21];
+
+	int irq;
+	int io_base;
+	int io_length;
+} fujitsu;
+
+static u8 fujitsu_ack(void)
+{
+	return inb(fujitsu.io_base + 2);
+}
+
+static u8 fujitsu_status(void)
+{
+	return inb(fujitsu.io_base + 6);
+}
+
+static u8 fujitsu_read_register(const u8 addr)
+{
+	outb(addr, fujitsu.io_base);
+	return inb(fujitsu.io_base + 4);
+}
+
+static void fujitsu_send_state(void)
+{
+	int state;
+	int dock, tablet_mode;
+
+	state = fujitsu_read_register(0xdd);
+
+	dock = state & 0x02;
+
+	if ((fujitsu.config.quirks & FORCE_TABLET_MODE_IF_UNDOCK) && (!dock)) {
+		tablet_mode = 1;
+	} else{
+		tablet_mode = state & 0x01;
+		if (fujitsu.config.quirks & INVERT_TABLET_MODE_BIT)
+			tablet_mode = !tablet_mode;
+	}
+
+	input_report_switch(fujitsu.idev, SW_DOCK, dock);
+	input_report_switch(fujitsu.idev, SW_TABLET_MODE, tablet_mode);
+	input_sync(fujitsu.idev);
+}
+
+static void fujitsu_reset(void)
+{
+	int timeout = 50;
+
+	fujitsu_ack();
+
+	while ((fujitsu_status() & 0x02) && (--timeout))
+		msleep(20);
+
+	fujitsu_send_state();
+}
+
+static int __devinit input_fujitsu_setup(struct device *parent,
+					 const char *name, const char *phys)
+{
+	struct input_dev *idev;
+	int error;
+	int i;
+
+	idev = input_allocate_device();
+	if (!idev)
+		return -ENOMEM;
+
+	idev->dev.parent = parent;
+	idev->phys = phys;
+	idev->name = name;
+	idev->id.bustype = BUS_HOST;
+	idev->id.vendor  = 0x1734;	/* Fujitsu Siemens Computer GmbH */
+	idev->id.product = 0x0001;
+	idev->id.version = 0x0101;
+
+	idev->keycode = fujitsu.config.keymap;
+	idev->keycodesize = sizeof(fujitsu.config.keymap[0]);
+	idev->keycodemax = ARRAY_SIZE(fujitsu.config.keymap);
+
+	__set_bit(EV_REP, idev->evbit);
+
+	for (i = 0; i < ARRAY_SIZE(fujitsu.config.keymap); i++)
+		if (fujitsu.config.keymap[i])
+			input_set_capability(idev, EV_KEY, fujitsu.config.keymap[i]);
+
+	input_set_capability(idev, EV_MSC, MSC_SCAN);
+
+	input_set_capability(idev, EV_SW, SW_DOCK);
+	input_set_capability(idev, EV_SW, SW_TABLET_MODE);
+
+	input_set_capability(idev, EV_SW, SW_DOCK);
+	input_set_capability(idev, EV_SW, SW_TABLET_MODE);
+
+	error = input_register_device(idev);
+	if (error) {
+		input_free_device(idev);
+		return error;
+	}
+
+	fujitsu.idev = idev;
+	return 0;
+}
+
+static void input_fujitsu_remove(void)
+{
+	input_unregister_device(fujitsu.idev);
+}
+
+static irqreturn_t fujitsu_interrupt(int irq, void *dev_id)
+{
+	unsigned long keymask, changed;
+	unsigned int keycode;
+	int pressed;
+	int i;
+
+	if (unlikely(!(fujitsu_status() & 0x01)))
+		return IRQ_NONE;
+
+	fujitsu_send_state();
+
+	keymask  = fujitsu_read_register(0xde);
+	keymask |= fujitsu_read_register(0xdf) << 8;
+	keymask ^= 0xffff;
+
+	changed = keymask ^ fujitsu.prev_keymask;
+	if (changed) {
+		fujitsu.prev_keymask = keymask;
+
+		for_each_set_bit(i, &changed, KEYMAP_LEN) {
+			keycode = fujitsu.config.keymap[i];
+			pressed = keymask & changed & BIT(i);
+
+			if (pressed)
+				input_event(fujitsu.idev, EV_MSC, MSC_SCAN, i);
+
+			input_report_key(fujitsu.idev, keycode, pressed);
+			input_sync(fujitsu.idev);
+		}
+	}
+
+	fujitsu_ack();
+	return IRQ_HANDLED;
+}
+
+static int __devinit fujitsu_dmi_default(const struct dmi_system_id *dmi)
+{
+	printk(KERN_INFO MODULENAME ": %s\n", dmi->ident);
+	memcpy(fujitsu.config.keymap, dmi->driver_data,
+			sizeof(fujitsu.config.keymap));
+	return 1;
+}
+
+static int __devinit fujitsu_dmi_stylistic(const struct dmi_system_id *dmi)
+{
+	fujitsu_dmi_default(dmi);
+	fujitsu.config.quirks |= FORCE_TABLET_MODE_IF_UNDOCK;
+	fujitsu.config.quirks |= INVERT_TABLET_MODE_BIT;
+	return 1;
+}
+
+static struct dmi_system_id dmi_ids[] __initconst = {
+	{
+		.callback = fujitsu_dmi_default,
+		.ident = "Fujitsu Siemens P/T Series",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK")
+		},
+		.driver_data = keymap_Lifebook_Tseries
+	},
+	{
+		.callback = fujitsu_dmi_default,
+		.ident = "Fujitsu Lifebook T Series",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook T")
+		},
+		.driver_data = keymap_Lifebook_Tseries
+	},
+	{
+		.callback = fujitsu_dmi_stylistic,
+		.ident = "Fujitsu Siemens Stylistic T Series",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic T")
+		},
+		.driver_data = keymap_Stylistic_Tseries
+	},
+	{
+		.callback = fujitsu_dmi_default,
+		.ident = "Fujitsu LifeBook U810",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook U810")
+		},
+		.driver_data = keymap_Lifebook_U810
+	},
+	{
+		.callback = fujitsu_dmi_stylistic,
+		.ident = "Fujitsu Siemens Stylistic ST5xxx Series",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "STYLISTIC ST5")
+		},
+		.driver_data = keymap_Stylistic_ST5xxx
+	},
+	{
+		.callback = fujitsu_dmi_stylistic,
+		.ident = "Fujitsu Siemens Stylistic ST5xxx Series",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic ST5")
+		},
+		.driver_data = keymap_Stylistic_ST5xxx
+	},
+	{
+		.callback = fujitsu_dmi_default,
+		.ident = "Unknown (using defaults)",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, ""),
+			DMI_MATCH(DMI_PRODUCT_NAME, "")
+		},
+		.driver_data = keymap_Lifebook_Tseries
+	},
+	{ NULL }
+};
+
+static acpi_status __devinit
+fujitsu_walk_resources(struct acpi_resource *res, void *data)
+{
+	switch (res->type) {
+	case ACPI_RESOURCE_TYPE_IRQ:
+		fujitsu.irq = res->data.irq.interrupts[0];
+		return AE_OK;
+
+	case ACPI_RESOURCE_TYPE_IO:
+		fujitsu.io_base = res->data.io.minimum;
+		fujitsu.io_length = res->data.io.address_length;
+		return AE_OK;
+
+	case ACPI_RESOURCE_TYPE_END_TAG:
+		if (fujitsu.irq && fujitsu.io_base)
+			return AE_OK;
+		else
+			return AE_NOT_FOUND;
+
+	default:
+		return AE_ERROR;
+	}
+}
+
+static int __devinit acpi_fujitsu_add(struct acpi_device *adev)
+{
+	acpi_status status;
+	int error;
+
+	if (!adev)
+		return -EINVAL;
+
+	status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
+			fujitsu_walk_resources, NULL);
+	if (ACPI_FAILURE(status) || !fujitsu.irq || !fujitsu.io_base)
+		return -ENODEV;
+
+	sprintf(acpi_device_name(adev), "Fujitsu %s", acpi_device_hid(adev));
+	sprintf(acpi_device_class(adev), "%s", ACPI_FUJITSU_CLASS);
+
+	snprintf(fujitsu.phys, sizeof(fujitsu.phys),
+			"%s/input0", acpi_device_hid(adev));
+
+	error = input_fujitsu_setup(&adev->dev,
+		acpi_device_name(adev), fujitsu.phys);
+	if (error)
+		return error;
+
+	if (!request_region(fujitsu.io_base, fujitsu.io_length, MODULENAME)) {
+		input_fujitsu_remove();
+		return -EBUSY;
+	}
+
+	fujitsu_reset();
+
+	error = request_irq(fujitsu.irq, fujitsu_interrupt,
+			IRQF_SHARED, MODULENAME, fujitsu_interrupt);
+	if (error) {
+		release_region(fujitsu.io_base, fujitsu.io_length);
+		input_fujitsu_remove();
+		return error;
+	}
+
+	return 0;
+}
+
+static int __devexit acpi_fujitsu_remove(struct acpi_device *adev, int type)
+{
+	free_irq(fujitsu.irq, fujitsu_interrupt);
+	release_region(fujitsu.io_base, fujitsu.io_length);
+	input_fujitsu_remove();
+	return 0;
+}
+
+static int acpi_fujitsu_resume(struct acpi_device *adev)
+{
+	fujitsu_reset();
+	return 0;
+}
+
+static struct acpi_driver acpi_fujitsu_driver = {
+	.name  = MODULENAME,
+	.class = "hotkey",
+	.ids   = fujitsu_ids,
+	.ops   = {
+		.add    = acpi_fujitsu_add,
+		.remove	= acpi_fujitsu_remove,
+		.resume = acpi_fujitsu_resume,
+	}
+};
+
+static int __init fujitsu_module_init(void)
+{
+	int error;
+
+	dmi_check_system(dmi_ids);
+
+	error = acpi_bus_register_driver(&acpi_fujitsu_driver);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static void __exit fujitsu_module_exit(void)
+{
+	acpi_bus_unregister_driver(&acpi_fujitsu_driver);
+}
+
+module_init(fujitsu_module_init);
+module_exit(fujitsu_module_exit);
+
+MODULE_AUTHOR("Robert Gerlach <khnz@gmx.de>");
+MODULE_DESCRIPTION("Fujitsu tablet pc extras driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("2.4");
+
+MODULE_DEVICE_TABLE(acpi, fujitsu_ids);

drivers/platform/x86/panasonic-laptop.c

@@ -562,8 +562,8 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
 
 	num_sifr = acpi_pcc_get_sqty(device);
 
-	if (num_sifr > 255) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr too large"));
+	if (num_sifr < 0 || num_sifr > 255) {
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr out of range"));
 		return -ENODEV;
 	}
 

drivers/tty/serial/sh-sci.c

@@ -1710,6 +1710,8 @@ static int sci_startup(struct uart_port *port)
 
 	dev_dbg(port->dev, "%s(%d)\n", __func__, port->line);
 
+	pm_runtime_put_noidle(port->dev);
+
 	sci_port_enable(s);
 
 	ret = sci_request_irq(s);
@@ -1737,6 +1739,8 @@ static void sci_shutdown(struct uart_port *port)
 	sci_free_irq(s);
 
 	sci_port_disable(s);
+
+	pm_runtime_get_noresume(port->dev);
 }
 
 static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
@@ -2075,6 +2079,7 @@ static int __devinit sci_init_single(struct platform_device *dev,
 		sci_init_gpios(sci_port);
 
 		pm_runtime_irq_safe(&dev->dev);
+		pm_runtime_get_noresume(&dev->dev);
 		pm_runtime_enable(&dev->dev);
 	}
 

fs/cifs/file.c

@@ -920,16 +920,26 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile)
 	for (lockp = &inode->i_flock; *lockp != NULL; \
 	     lockp = &(*lockp)->fl_next)
 
+struct lock_to_push {
+	struct list_head llist;
+	__u64 offset;
+	__u64 length;
+	__u32 pid;
+	__u16 netfid;
+	__u8 type;
+};
+
 static int
 cifs_push_posix_locks(struct cifsFileInfo *cfile)
 {
 	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
 	struct file_lock *flock, **before;
-	struct cifsLockInfo *lck, *tmp;
+	unsigned int count = 0, i = 0;
 	int rc = 0, xid, type;
+	struct list_head locks_to_send, *el;
+	struct lock_to_push *lck, *tmp;
 	__u64 length;
-	struct list_head locks_to_send;
 
 	xid = GetXid();
 
@@ -940,29 +950,55 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile)
 		return rc;
 	}
 
+	lock_flocks();
+	cifs_for_each_lock(cfile->dentry->d_inode, before) {
+		if ((*before)->fl_flags & FL_POSIX)
+			count++;
+	}
+	unlock_flocks();
+
 	INIT_LIST_HEAD(&locks_to_send);
 
+	/*
+	 * Allocating count locks is enough because no locks can be added to
+	 * the list while we are holding cinode->lock_mutex that protects
+	 * locking operations of this inode.
+	 */
+	for (; i < count; i++) {
+		lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL);
+		if (!lck) {
+			rc = -ENOMEM;
+			goto err_out;
+		}
+		list_add_tail(&lck->llist, &locks_to_send);
+	}
+
+	i = 0;
+	el = locks_to_send.next;
 	lock_flocks();
 	cifs_for_each_lock(cfile->dentry->d_inode, before) {
+		if (el == &locks_to_send) {
+			/* something is really wrong */
+			cERROR(1, "Can't push all brlocks!");
+			break;
+		}
 		flock = *before;
+		if ((flock->fl_flags & FL_POSIX) == 0)
+			continue;
 		length = 1 + flock->fl_end - flock->fl_start;
 		if (flock->fl_type == F_RDLCK || flock->fl_type == F_SHLCK)
 			type = CIFS_RDLCK;
 		else
 			type = CIFS_WRLCK;
-
-		lck = cifs_lock_init(flock->fl_start, length, type,
-				     cfile->netfid);
-		if (!lck) {
-			rc = -ENOMEM;
-			goto send_locks;
-		}
+		lck = list_entry(el, struct lock_to_push, llist);
 		lck->pid = flock->fl_pid;
-
-		list_add_tail(&lck->llist, &locks_to_send);
+		lck->netfid = cfile->netfid;
+		lck->length = length;
+		lck->type = type;
+		lck->offset = flock->fl_start;
+		i++;
+		el = el->next;
 	}
-
-send_locks:
 	unlock_flocks();
 
 	list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
@@ -979,11 +1015,18 @@ send_locks:
 		kfree(lck);
 	}
 
+out:
 	cinode->can_cache_brlcks = false;
 	mutex_unlock(&cinode->lock_mutex);
 
 	FreeXid(xid);
 	return rc;
+err_out:
+	list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
+		list_del(&lck->llist);
+		kfree(lck);
+	}
+	goto out;
 }
 
 static int

fs/cifs/xattr.c

@@ -105,7 +105,6 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
 	struct cifs_tcon *pTcon;
 	struct super_block *sb;
 	char *full_path;
-	struct cifs_ntsd *pacl;
 
 	if (direntry == NULL)
 		return -EIO;
@@ -164,23 +163,24 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
 			cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
 	} else if (strncmp(ea_name, CIFS_XATTR_CIFS_ACL,
 			strlen(CIFS_XATTR_CIFS_ACL)) == 0) {
+#ifdef CONFIG_CIFS_ACL
+		struct cifs_ntsd *pacl;
 		pacl = kmalloc(value_size, GFP_KERNEL);
 		if (!pacl) {
 			cFYI(1, "%s: Can't allocate memory for ACL",
 					__func__);
 			rc = -ENOMEM;
 		} else {
-#ifdef CONFIG_CIFS_ACL
 			memcpy(pacl, ea_value, value_size);
 			rc = set_cifs_acl(pacl, value_size,
 				direntry->d_inode, full_path, CIFS_ACL_DACL);
 			if (rc == 0) /* force revalidate of the inode */
 				CIFS_I(direntry->d_inode)->time = 0;
 			kfree(pacl);
+		}
 #else
 			cFYI(1, "Set CIFS ACL not supported yet");
 #endif /* CONFIG_CIFS_ACL */
-		}
 	} else {
 		int temp;
 		temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,

fs/inode.c

@@ -938,8 +938,7 @@ void lockdep_annotate_inode_mutex_key(struct inode *inode)
 		struct file_system_type *type = inode->i_sb->s_type;
 
 		/* Set new key only if filesystem hasn't already changed it */
-		if (!lockdep_match_class(&inode->i_mutex,
-		    &type->i_mutex_key)) {
+		if (lockdep_match_class(&inode->i_mutex, &type->i_mutex_key)) {
 			/*
 			 * ensure nobody is actually holding i_mutex
 			 */
@@ -966,6 +965,7 @@ void unlock_new_inode(struct inode *inode)
 	spin_lock(&inode->i_lock);
 	WARN_ON(!(inode->i_state & I_NEW));
 	inode->i_state &= ~I_NEW;
+	smp_mb();
 	wake_up_bit(&inode->i_state, __I_NEW);
 	spin_unlock(&inode->i_lock);
 }

fs/namei.c

@@ -2162,7 +2162,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
 		/* sayonara */
 		error = complete_walk(nd);
 		if (error)
-			return ERR_PTR(-ECHILD);
+			return ERR_PTR(error);
 
 		error = -ENOTDIR;
 		if (nd->flags & LOOKUP_DIRECTORY) {
@@ -2261,7 +2261,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
 	/* Why this, you ask?  _Now_ we might have grown LOOKUP_JUMPED... */
 	error = complete_walk(nd);
 	if (error)
-		goto exit;
+		return ERR_PTR(error);
 	error = -EISDIR;
 	if (S_ISDIR(nd->inode->i_mode))
 		goto exit;

fs/udf/file.c

@@ -201,12 +201,10 @@ out:
 static int udf_release_file(struct inode *inode, struct file *filp)
 {
 	if (filp->f_mode & FMODE_WRITE) {
-		mutex_lock(&inode->i_mutex);
 		down_write(&UDF_I(inode)->i_data_sem);
 		udf_discard_prealloc(inode);
 		udf_truncate_tail_extent(inode);
 		up_write(&UDF_I(inode)->i_data_sem);
-		mutex_unlock(&inode->i_mutex);
 	}
 	return 0;
 }

lib/dynamic_queue_limits.c

@@ -7,6 +7,7 @@
 #include <linux/types.h>
 #include <linux/ctype.h>
 #include <linux/kernel.h>
+#include <linux/jiffies.h>
 #include <linux/dynamic_queue_limits.h>
 
 #define POSDIFF(A, B) ((A) > (B) ? (A) - (B) : 0)

net/ipv4/syncookies.c

@@ -278,6 +278,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	struct rtable *rt;
 	__u8 rcv_wscale;
 	bool ecn_ok = false;
+	struct flowi4 fl4;
 
 	if (!sysctl_tcp_syncookies || !th->ack || th->rst)
 		goto out;
@@ -346,20 +347,16 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	 * hasn't changed since we received the original syn, but I see
 	 * no easy way to do this.
 	 */
-	{
-		struct flowi4 fl4;
-
-		flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),
-				   RT_SCOPE_UNIVERSE, IPPROTO_TCP,
-				   inet_sk_flowi_flags(sk),
-				   (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
-				   ireq->loc_addr, th->source, th->dest);
-		security_req_classify_flow(req, flowi4_to_flowi(&fl4));
-		rt = ip_route_output_key(sock_net(sk), &fl4);
-		if (IS_ERR(rt)) {
-			reqsk_free(req);
-			goto out;
-		}
+	flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),
+			   RT_SCOPE_UNIVERSE, IPPROTO_TCP,
+			   inet_sk_flowi_flags(sk),
+			   (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
+			   ireq->loc_addr, th->source, th->dest);
+	security_req_classify_flow(req, flowi4_to_flowi(&fl4));
+	rt = ip_route_output_key(sock_net(sk), &fl4);
+	if (IS_ERR(rt)) {
+		reqsk_free(req);
+		goto out;
 	}
 
 	/* Try to redo what tcp_v4_send_synack did. */
@@ -373,5 +370,10 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	ireq->rcv_wscale  = rcv_wscale;
 
 	ret = get_cookie_sock(sk, skb, req, &rt->dst);
+	/* ip_queue_xmit() depends on our flow being setup
+	 * Normal sockets get it right from inet_csk_route_child_sock()
+	 */
+	if (ret)
+		inet_sk(ret)->cork.fl.u.ip4 = fl4;
 out:	return ret;
 }

net/ipv4/tcp_ipv4.c

@@ -1466,9 +1466,13 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 		inet_csk(newsk)->icsk_ext_hdr_len = inet_opt->opt.optlen;
 	newinet->inet_id = newtp->write_seq ^ jiffies;
 
-	if (!dst && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
-		goto put_and_exit;
-
+	if (!dst) {
+		dst = inet_csk_route_child_sock(sk, newsk, req);
+		if (!dst)
+			goto put_and_exit;
+	} else {
+		/* syncookie case : see end of cookie_v4_check() */
+	}
 	sk_setup_caps(newsk, dst);
 
 	tcp_mtup_init(newsk);

tools/perf/Makefile

@@ -268,6 +268,8 @@ LIB_H += util/include/asm/uaccess.h
 LIB_H += util/include/dwarf-regs.h
 LIB_H += util/include/asm/dwarf2.h
 LIB_H += util/include/asm/cpufeature.h
+LIB_H += util/include/asm/unistd_32.h
+LIB_H += util/include/asm/unistd_64.h
 LIB_H += perf.h
 LIB_H += util/annotate.h
 LIB_H += util/cache.h

tools/perf/arch/powerpc/util/header.c

@@ -25,7 +25,7 @@ get_cpuid(char *buffer, size_t sz)
 
 	pvr = mfspr(SPRN_PVR);
 
-	nb = snprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));
+	nb = scnprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));
 
 	/* look for end marker to ensure the entire data fit */
 	if (strchr(buffer, '$')) {

tools/perf/arch/x86/util/header.c

@@ -48,7 +48,7 @@ get_cpuid(char *buffer, size_t sz)
 		if (family >= 0x6)
 			model += ((a >> 16) & 0xf) << 4;
 	}
-	nb = snprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);
+	nb = scnprintf(buffer, sz, "%s,%u,%u,%u$", vendor, family, model, step);
 
 	/* look for end marker to ensure the entire data fit */
 	if (strchr(buffer, '$')) {

tools/perf/perf.h

@@ -10,6 +10,9 @@ void get_term_dimensions(struct winsize *ws);
 #define rmb()		asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
 #define cpu_relax()	asm volatile("rep; nop" ::: "memory");
 #define CPUINFO_PROC	"model name"
+#ifndef __NR_perf_event_open
+# define __NR_perf_event_open 336
+#endif
 #endif
 
 #if defined(__x86_64__)
@@ -17,6 +20,9 @@ void get_term_dimensions(struct winsize *ws);
 #define rmb()		asm volatile("lfence" ::: "memory")
 #define cpu_relax()	asm volatile("rep; nop" ::: "memory");
 #define CPUINFO_PROC	"model name"
+#ifndef __NR_perf_event_open
+# define __NR_perf_event_open 298
+#endif
 #endif
 
 #ifdef __powerpc__

tools/perf/util/color.c

@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
 #include "cache.h"
 #include "color.h"
 
@@ -182,12 +183,12 @@ static int __color_vsnprintf(char *bf, size_t size, const char *color,
 	}
 
 	if (perf_use_color_default && *color)
-		r += snprintf(bf, size, "%s", color);
-	r += vsnprintf(bf + r, size - r, fmt, args);
+		r += scnprintf(bf, size, "%s", color);
+	r += vscnprintf(bf + r, size - r, fmt, args);
 	if (perf_use_color_default && *color)
-		r += snprintf(bf + r, size - r, "%s", PERF_COLOR_RESET);
+		r += scnprintf(bf + r, size - r, "%s", PERF_COLOR_RESET);
 	if (trail)
-		r += snprintf(bf + r, size - r, "%s", trail);
+		r += scnprintf(bf + r, size - r, "%s", trail);
 	return r;
 }
 

tools/perf/util/header.c

@@ -291,7 +291,7 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
 	if (realname == NULL || filename == NULL || linkname == NULL)
 		goto out_free;
 
-	len = snprintf(filename, size, "%s%s%s",
+	len = scnprintf(filename, size, "%s%s%s",
 		       debugdir, is_kallsyms ? "/" : "", realname);
 	if (mkdir_p(filename, 0755))
 		goto out_free;
@@ -306,7 +306,7 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
 			goto out_free;
 	}
 
-	len = snprintf(linkname, size, "%s/.build-id/%.2s",
+	len = scnprintf(linkname, size, "%s/.build-id/%.2s",
 		       debugdir, sbuild_id);
 
 	if (access(linkname, X_OK) && mkdir_p(linkname, 0755))

tools/perf/util/hist.c

@@ -840,7 +840,7 @@ static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
 						     sep ? "%.2f" : "   %6.2f%%",
 						     (period * 100.0) / total);
 		else
-			ret = snprintf(s, size, sep ? "%.2f" : "   %6.2f%%",
+			ret = scnprintf(s, size, sep ? "%.2f" : "   %6.2f%%",
 				       (period * 100.0) / total);
 		if (symbol_conf.show_cpu_utilization) {
 			ret += percent_color_snprintf(s + ret, size - ret,
@@ -863,20 +863,20 @@ static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
 			}
 		}
 	} else
-		ret = snprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period);
+		ret = scnprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period);
 
 	if (symbol_conf.show_nr_samples) {
 		if (sep)
-			ret += snprintf(s + ret, size - ret, "%c%" PRIu64, *sep, nr_events);
+			ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, nr_events);
 		else
-			ret += snprintf(s + ret, size - ret, "%11" PRIu64, nr_events);
+			ret += scnprintf(s + ret, size - ret, "%11" PRIu64, nr_events);
 	}
 
 	if (symbol_conf.show_total_period) {
 		if (sep)
-			ret += snprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);
+			ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);
 		else
-			ret += snprintf(s + ret, size - ret, " %12" PRIu64, period);
+			ret += scnprintf(s + ret, size - ret, " %12" PRIu64, period);
 	}
 
 	if (pair_hists) {
@@ -891,25 +891,25 @@ static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
 		diff = new_percent - old_percent;
 
 		if (fabs(diff) >= 0.01)
-			snprintf(bf, sizeof(bf), "%+4.2F%%", diff);
+			ret += scnprintf(bf, sizeof(bf), "%+4.2F%%", diff);
 		else
-			snprintf(bf, sizeof(bf), " ");
+			ret += scnprintf(bf, sizeof(bf), " ");
 
 		if (sep)
-			ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf);
+			ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
 		else
-			ret += snprintf(s + ret, size - ret, "%11.11s", bf);
+			ret += scnprintf(s + ret, size - ret, "%11.11s", bf);
 
 		if (show_displacement) {
 			if (displacement)
-				snprintf(bf, sizeof(bf), "%+4ld", displacement);
+				ret += scnprintf(bf, sizeof(bf), "%+4ld", displacement);
 			else
-				snprintf(bf, sizeof(bf), " ");
+				ret += scnprintf(bf, sizeof(bf), " ");
 
 			if (sep)
-				ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf);
+				ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
 			else
-				ret += snprintf(s + ret, size - ret, "%6.6s", bf);
+				ret += scnprintf(s + ret, size - ret, "%6.6s", bf);
 		}
 	}
 
@@ -927,7 +927,7 @@ int hist_entry__snprintf(struct hist_entry *he, char *s, size_t size,
 		if (se->elide)
 			continue;
 
-		ret += snprintf(s + ret, size - ret, "%s", sep ?: "  ");
+		ret += scnprintf(s + ret, size - ret, "%s", sep ?: "  ");
 		ret += se->se_snprintf(he, s + ret, size - ret,
 				       hists__col_len(hists, se->se_width_idx));
 	}

tools/perf/util/include/asm/unistd_32.h

@@ -0,0 +1 @@
+

tools/perf/util/include/asm/unistd_64.h

@@ -0,0 +1 @@
+

tools/perf/util/parse-events.c

@@ -165,7 +165,7 @@ struct tracepoint_path *tracepoint_id_to_path(u64 config)
 	struct tracepoint_path *path = NULL;
 	DIR *sys_dir, *evt_dir;
 	struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
-	char id_buf[4];
+	char id_buf[24];
 	int fd;
 	u64 id;
 	char evt_path[MAXPATHLEN];

tools/perf/util/sort.c

@@ -34,6 +34,9 @@ static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
 		}
 	}
 	va_end(ap);
+
+	if (n >= (int)size)
+		return size - 1;
 	return n;
 }
 

tools/perf/util/strbuf.c

@@ -1,4 +1,5 @@
 #include "cache.h"
+#include <linux/kernel.h>
 
 int prefixcmp(const char *str, const char *prefix)
 {
@@ -89,14 +90,14 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
 	if (!strbuf_avail(sb))
 		strbuf_grow(sb, 64);
 	va_start(ap, fmt);
-	len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
+	len = vscnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
 	va_end(ap);
 	if (len < 0)
-		die("your vsnprintf is broken");
+		die("your vscnprintf is broken");
 	if (len > strbuf_avail(sb)) {
 		strbuf_grow(sb, len);
 		va_start(ap, fmt);
-		len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
+		len = vscnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
 		va_end(ap);
 		if (len > strbuf_avail(sb)) {
 			die("this should not happen, your snprintf is broken");

tools/perf/util/ui/browsers/hists.c

@@ -840,18 +840,18 @@ static int hists__browser_title(struct hists *self, char *bf, size_t size,
 	unsigned long nr_events = self->stats.nr_events[PERF_RECORD_SAMPLE];
 
 	nr_events = convert_unit(nr_events, &unit);
-	printed = snprintf(bf, size, "Events: %lu%c %s", nr_events, unit, ev_name);
+	printed = scnprintf(bf, size, "Events: %lu%c %s", nr_events, unit, ev_name);
 
 	if (self->uid_filter_str)
 		printed += snprintf(bf + printed, size - printed,
 				    ", UID: %s", self->uid_filter_str);
 	if (thread)
-		printed += snprintf(bf + printed, size - printed,
+		printed += scnprintf(bf + printed, size - printed,
 				    ", Thread: %s(%d)",
 				    (thread->comm_set ? thread->comm : ""),
 				    thread->pid);
 	if (dso)
-		printed += snprintf(bf + printed, size - printed,
+		printed += scnprintf(bf + printed, size - printed,
 				    ", DSO: %s", dso->short_name);
 	return printed;
 }
@@ -1174,7 +1174,7 @@ static void perf_evsel_menu__write(struct ui_browser *browser,
 						       HE_COLORSET_NORMAL);
 
 	nr_events = convert_unit(nr_events, &unit);
-	printed = snprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
+	printed = scnprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
 			   unit, unit == ' ' ? "" : " ", ev_name);
 	slsmg_printf("%s", bf);
 
@@ -1184,8 +1184,8 @@ static void perf_evsel_menu__write(struct ui_browser *browser,
 		if (!current_entry)
 			ui_browser__set_color(browser, HE_COLORSET_TOP);
 		nr_events = convert_unit(nr_events, &unit);
-		snprintf(bf, sizeof(bf), ": %ld%c%schunks LOST!", nr_events,
-			 unit, unit == ' ' ? "" : " ");
+		printed += scnprintf(bf, sizeof(bf), ": %ld%c%schunks LOST!",
+				     nr_events, unit, unit == ' ' ? "" : " ");
 		warn = bf;
 	}
 

tools/perf/util/ui/helpline.c

@@ -64,7 +64,7 @@ int ui_helpline__show_help(const char *format, va_list ap)
 	static int backlog;
 
 	pthread_mutex_lock(&ui__lock);
-	ret = vsnprintf(ui_helpline__last_msg + backlog,
+	ret = vscnprintf(ui_helpline__last_msg + backlog,
 			sizeof(ui_helpline__last_msg) - backlog, format, ap);
 	backlog += ret;