[PATCH] PCI: the scheduled removal of PCI_LEGACY_PROC

This patch contains the scheduled removal of PCI_LEGACY_PROC.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Documentation/feature-removal-schedule.txt

@@ -158,13 +158,6 @@ Who:    Adrian Bunk <bunk@stusta.de>
 
 ---------------------------
 
-What:	Legacy /proc/pci interface (PCI_LEGACY_PROC)
-When:	March 2006
-Why:	deprecated since 2.5.53 in favor of lspci(8)
-Who:	Adrian Bunk <bunk@stusta.de>
-
----------------------------
-
 What:	pci_module_init(driver)
 When:	January 2007
 Why:	Is replaced by pci_register_driver(pci_driver).

drivers/pci/Kconfig

@@ -13,23 +13,6 @@ config PCI_MSI
 
 	   If you don't know what to do here, say N.
 
-config PCI_LEGACY_PROC
-	bool "Legacy /proc/pci interface"
-	depends on PCI
-	---help---
-	  This feature enables a procfs file -- /proc/pci -- that provides a 
-	  summary of PCI devices in the system. 
-
-	  This feature has been deprecated as of v2.5.53, in favor of using the 
-	  tool lspci(8). This feature may be removed at a future date. 
-
-	  lspci can provide the same data, as well as much more. lspci is a part of
-	  the pci-utils package, which should be installed by your distribution. 
-	  See <file:Documentation/Changes> for information on where to get the latest
-	  version. 
-
-	  When in doubt, say N.
-
 config PCI_DEBUG
 	bool "PCI Debugging"
 	depends on PCI && DEBUG_KERNEL

drivers/pci/proc.c

@@ -458,131 +458,6 @@ int pci_proc_detach_bus(struct pci_bus* bus)
 	return 0;
 }
 
-#ifdef CONFIG_PCI_LEGACY_PROC
-
-/*
- *  Backward compatible /proc/pci interface.
- */
-
-/*
- * Convert some of the configuration space registers of the device at
- * address (bus,devfn) into a string (possibly several lines each).
- * The configuration string is stored starting at buf[len].  If the
- * string would exceed the size of the buffer (SIZE), 0 is returned.
- */
-static int show_dev_config(struct seq_file *m, void *v)
-{
-	struct pci_dev *dev = v;
-	struct pci_dev *first_dev;
-	struct pci_driver *drv;
-	u32 class_rev;
-	unsigned char latency, min_gnt, max_lat;
-	int reg;
-
-	first_dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
-	if (dev == first_dev)
-		seq_puts(m, "PCI devices found:\n");
-	pci_dev_put(first_dev);
-
-	drv = pci_dev_driver(dev);
-
-	pci_user_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
-	pci_user_read_config_byte (dev, PCI_LATENCY_TIMER, &latency);
-	pci_user_read_config_byte (dev, PCI_MIN_GNT, &min_gnt);
-	pci_user_read_config_byte (dev, PCI_MAX_LAT, &max_lat);
-	seq_printf(m, "  Bus %2d, device %3d, function %2d:\n",
-	       dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-	seq_printf(m, "    Class %04x", class_rev >> 16);
-	seq_printf(m, ": PCI device %04x:%04x", dev->vendor, dev->device);
-	seq_printf(m, " (rev %d).\n", class_rev & 0xff);
-
-	if (dev->irq)
-		seq_printf(m, "      IRQ %d.\n", dev->irq);
-
-	if (latency || min_gnt || max_lat) {
-		seq_printf(m, "      Master Capable.  ");
-		if (latency)
-			seq_printf(m, "Latency=%d.  ", latency);
-		else
-			seq_puts(m, "No bursts.  ");
-		if (min_gnt)
-			seq_printf(m, "Min Gnt=%d.", min_gnt);
-		if (max_lat)
-			seq_printf(m, "Max Lat=%d.", max_lat);
-		seq_putc(m, '\n');
-	}
-
-	for (reg = 0; reg < 6; reg++) {
-		struct resource *res = dev->resource + reg;
-		unsigned long base, end, flags;
-
-		base = res->start;
-		end = res->end;
-		flags = res->flags;
-		if (!end)
-			continue;
-
-		if (flags & PCI_BASE_ADDRESS_SPACE_IO) {
-			seq_printf(m, "      I/O at 0x%lx [0x%lx].\n",
-				base, end);
-		} else {
-			const char *pref, *type = "unknown";
-
-			if (flags & PCI_BASE_ADDRESS_MEM_PREFETCH)
-				pref = "P";
-			else
-				pref = "Non-p";
-			switch (flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK) {
-			      case PCI_BASE_ADDRESS_MEM_TYPE_32:
-				type = "32 bit"; break;
-			      case PCI_BASE_ADDRESS_MEM_TYPE_1M:
-				type = "20 bit"; break;
-			      case PCI_BASE_ADDRESS_MEM_TYPE_64:
-				type = "64 bit"; break;
-			}
-			seq_printf(m, "      %srefetchable %s memory at "
-				       "0x%lx [0x%lx].\n", pref, type,
-				       base,
-				       end);
-		}
-	}
-	return 0;
-}
-
-static struct seq_operations proc_pci_op = {
-	.start	= pci_seq_start,
-	.next	= pci_seq_next,
-	.stop	= pci_seq_stop,
-	.show	= show_dev_config
-};
-
-static int proc_pci_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &proc_pci_op);
-}
-static struct file_operations proc_pci_operations = {
-	.open		= proc_pci_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= seq_release,
-};
-
-static void legacy_proc_init(void)
-{
-	struct proc_dir_entry * entry = create_proc_entry("pci", 0, NULL);
-	if (entry)
-		entry->proc_fops = &proc_pci_operations;
-}
-
-#else
-
-static void legacy_proc_init(void)
-{
-
-}
-
-#endif /* CONFIG_PCI_LEGACY_PROC */
-
 static int proc_bus_pci_dev_open(struct inode *inode, struct file *file)
 {
 	return seq_open(file, &proc_bus_pci_devices_op);
@@ -606,7 +481,6 @@ static int __init pci_proc_init(void)
 	while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
 		pci_proc_attach_device(dev);
 	}
-	legacy_proc_init();
 	return 0;
 }