X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fpci%2Fhotplug.c;h=1c97e7dd130b75d35b81ca848006a91ea3ab9ad6;hb=1ad9d0540d5b1431c74736c74cdb6babc7c247aa;hp=213a1a3b499c3cf80b600d53a89e750e7993d208;hpb=daddc0d38b3571bed170afa273a49a0eba090c1e;p=linux-2.6.git

diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c
index 213a1a3b4..1c97e7dd1 100644
--- a/drivers/pci/hotplug.c
+++ b/drivers/pci/hotplug.c
@@ -1,20 +1,12 @@
+#include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/module.h>
 #include "pci.h"
 
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-int pci_hotplug (struct device *dev, char **envp, int num_envp,
-		 char *buffer, int buffer_size)
+int pci_uevent(struct device *dev, char **envp, int num_envp,
+	       char *buffer, int buffer_size)
 {
 	struct pci_dev *pdev;
-	char *scratch;
 	int i = 0;
 	int length = 0;
 
@@ -25,148 +17,37 @@ int pci_hotplug (struct device *dev, char **envp, int num_envp,
 	if (!pdev)
 		return -ENODEV;
 
-	scratch = buffer;
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_CLASS=%04X", pdev->class))
+		return -ENOMEM;
 
-	/* stuff we want to pass to /sbin/hotplug */
-	envp[i++] = scratch;
-	length += scnprintf (scratch, buffer_size - length, "PCI_CLASS=%04X",
-			    pdev->class);
-	if ((buffer_size - length <= 0) || (i >= num_envp))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
 		return -ENOMEM;
-	++length;
-	scratch += length;
 
-	envp[i++] = scratch;
-	length += scnprintf (scratch, buffer_size - length, "PCI_ID=%04X:%04X",
-			    pdev->vendor, pdev->device);
-	if ((buffer_size - length <= 0) || (i >= num_envp))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
+			   pdev->subsystem_device))
 		return -ENOMEM;
-	++length;
-	scratch += length;
 
-	envp[i++] = scratch;
-	length += scnprintf (scratch, buffer_size - length,
-			    "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
-			    pdev->subsystem_device);
-	if ((buffer_size - length <= 0) || (i >= num_envp))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "PCI_SLOT_NAME=%s", pci_name(pdev)))
 		return -ENOMEM;
-	++length;
-	scratch += length;
 
-	envp[i++] = scratch;
-	length += scnprintf (scratch, buffer_size - length, "PCI_SLOT_NAME=%s",
-			    pci_name(pdev));
-	if ((buffer_size - length <= 0) || (i >= num_envp))
+	if (add_uevent_var(envp, num_envp, &i,
+			   buffer, buffer_size, &length,
+			   "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
+			   pdev->vendor, pdev->device,
+			   pdev->subsystem_vendor, pdev->subsystem_device,
+			   (u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
+			   (u8)(pdev->class)))
 		return -ENOMEM;
 
-	envp[i] = 0;
+	envp[i] = NULL;
 
 	return 0;
 }
-
-static int pci_visit_bus (struct pci_visit * fn, struct pci_bus_wrapped *wrapped_bus, struct pci_dev_wrapped *wrapped_parent)
-{
-	struct list_head *ln;
-	struct pci_dev *dev;
-	struct pci_dev_wrapped wrapped_dev;
-	int result = 0;
-
-	DBG("scanning bus %02x\n", wrapped_bus->bus->number);
-
-	if (fn->pre_visit_pci_bus) {
-		result = fn->pre_visit_pci_bus(wrapped_bus, wrapped_parent);
-		if (result)
-			return result;
-	}
-
-	ln = wrapped_bus->bus->devices.next; 
-	while (ln != &wrapped_bus->bus->devices) {
-		dev = pci_dev_b(ln);
-		ln = ln->next;
-
-		memset(&wrapped_dev, 0, sizeof(struct pci_dev_wrapped));
-		wrapped_dev.dev = dev;
-
-		result = pci_visit_dev(fn, &wrapped_dev, wrapped_bus);
-		if (result)
-			return result;
-	}
-
-	if (fn->post_visit_pci_bus)
-		result = fn->post_visit_pci_bus(wrapped_bus, wrapped_parent);
-
-	return result;
-}
-
-static int pci_visit_bridge (struct pci_visit * fn,
-			     struct pci_dev_wrapped *wrapped_dev,
-			     struct pci_bus_wrapped *wrapped_parent)
-{
-	struct pci_bus *bus;
-	struct pci_bus_wrapped wrapped_bus;
-	int result = 0;
-
-	DBG("scanning bridge %02x, %02x\n", PCI_SLOT(wrapped_dev->dev->devfn),
-	    PCI_FUNC(wrapped_dev->dev->devfn));
-
-	if (fn->visit_pci_dev) {
-		result = fn->visit_pci_dev(wrapped_dev, wrapped_parent);
-		if (result)
-			return result;
-	}
-
-	bus = wrapped_dev->dev->subordinate;
-	if (bus) {
-		memset(&wrapped_bus, 0, sizeof(struct pci_bus_wrapped));
-		wrapped_bus.bus = bus;
-
-		result = pci_visit_bus(fn, &wrapped_bus, wrapped_dev);
-	}
-	return result;
-}
-
-/**
- * pci_visit_dev - scans the pci buses.
- * Every bus and every function is presented to a custom
- * function that can act upon it.
- */
-int pci_visit_dev(struct pci_visit *fn, struct pci_dev_wrapped *wrapped_dev,
-		  struct pci_bus_wrapped *wrapped_parent)
-{
-	struct pci_dev* dev = wrapped_dev ? wrapped_dev->dev : NULL;
-	int result = 0;
-
-	if (!dev)
-		return 0;
-
-	if (fn->pre_visit_pci_dev) {
-		result = fn->pre_visit_pci_dev(wrapped_dev, wrapped_parent);
-		if (result)
-			return result;
-	}
-
-	switch (dev->class >> 8) {
-		case PCI_CLASS_BRIDGE_PCI:
-			result = pci_visit_bridge(fn, wrapped_dev,
-						  wrapped_parent);
-			if (result)
-				return result;
-			break;
-		default:
-			DBG("scanning device %02x, %02x\n",
-			    PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-			if (fn->visit_pci_dev) {
-				result = fn->visit_pci_dev (wrapped_dev,
-							    wrapped_parent);
-				if (result)
-					return result;
-			}
-	}
-
-	if (fn->post_visit_pci_dev)
-		result = fn->post_visit_pci_dev(wrapped_dev, wrapped_parent);
-
-	return result;
-}
-EXPORT_SYMBOL(pci_visit_dev);
-