Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...

[linux-2.6] / drivers / pci / hotplug / shpchp_core.c

diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index 43816d4b3c435bf37a23740e4855551827059520..97848654652a1d2e03e6f648c268012f9b0711d9 100644 (file)
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -39,6 +39,7 @@
 int shpchp_debug;
 int shpchp_poll_mode;
 int shpchp_poll_time;
+int shpchp_slot_with_bus;
 struct workqueue_struct *shpchp_wq;
 
 #define DRIVER_VERSION "0.4"
@@ -52,9 +53,11 @@ MODULE_LICENSE("GPL");
 module_param(shpchp_debug, bool, 0644);
 module_param(shpchp_poll_mode, bool, 0644);
 module_param(shpchp_poll_time, int, 0644);
+module_param(shpchp_slot_with_bus, bool, 0644);
 MODULE_PARM_DESC(shpchp_debug, "Debugging mode enabled or not");
 MODULE_PARM_DESC(shpchp_poll_mode, "Using polling mechanism for hot-plug events or not");
 MODULE_PARM_DESC(shpchp_poll_time, "Polling mechanism frequency, in seconds");
+MODULE_PARM_DESC(shpchp_slot_with_bus, "Use bus number in the slot name");
 
 #define SHPC_MODULE_NAME "shpchp"
 
@@ -100,8 +103,12 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
 
 static void make_slot_name(struct slot *slot)
 {
-       snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d",
-                slot->bus, slot->number);
+       if (shpchp_slot_with_bus)
+               snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d",
+                        slot->bus, slot->number);
+       else
+               snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%d",
+                        slot->number);
 }
 
 static int init_slots(struct controller *ctrl)
@@ -155,6 +162,10 @@ static int init_slots(struct controller *ctrl)
                retval = pci_hp_register(slot->hotplug_slot);
                if (retval) {
                        err("pci_hp_register failed with error %d\n", retval);
+                       if (retval == -EEXIST)
+                               err("Failed to register slot because of name "
+                                    "collision. Try \'shpchp_slot_with_bus\' "
+                                   "module option.\n");
                        goto error_info;
                }