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path: root/drivers/pci/hotplug
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-rw-r--r--drivers/pci/hotplug/pciehp.h1
-rw-r--r--drivers/pci/hotplug/pciehp_core.c21
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c11
3 files changed, 15 insertions, 18 deletions
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index e3a1e7e7dba2..9e6cec67e1cc 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -43,7 +43,6 @@ extern int pciehp_poll_mode;
43extern int pciehp_poll_time; 43extern int pciehp_poll_time;
44extern int pciehp_debug; 44extern int pciehp_debug;
45extern int pciehp_force; 45extern int pciehp_force;
46extern int pciehp_slot_with_bus;
47extern struct workqueue_struct *pciehp_wq; 46extern struct workqueue_struct *pciehp_wq;
48 47
49#define dbg(format, arg...) \ 48#define dbg(format, arg...) \
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 3677495c4f91..4fd5355bc3b5 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -41,7 +41,6 @@ int pciehp_debug;
41int pciehp_poll_mode; 41int pciehp_poll_mode;
42int pciehp_poll_time; 42int pciehp_poll_time;
43int pciehp_force; 43int pciehp_force;
44int pciehp_slot_with_bus;
45struct workqueue_struct *pciehp_wq; 44struct workqueue_struct *pciehp_wq;
46 45
47#define DRIVER_VERSION "0.4" 46#define DRIVER_VERSION "0.4"
@@ -56,12 +55,10 @@ module_param(pciehp_debug, bool, 0644);
56module_param(pciehp_poll_mode, bool, 0644); 55module_param(pciehp_poll_mode, bool, 0644);
57module_param(pciehp_poll_time, int, 0644); 56module_param(pciehp_poll_time, int, 0644);
58module_param(pciehp_force, bool, 0644); 57module_param(pciehp_force, bool, 0644);
59module_param(pciehp_slot_with_bus, bool, 0644);
60MODULE_PARM_DESC(pciehp_debug, "Debugging mode enabled or not"); 58MODULE_PARM_DESC(pciehp_debug, "Debugging mode enabled or not");
61MODULE_PARM_DESC(pciehp_poll_mode, "Using polling mechanism for hot-plug events or not"); 59MODULE_PARM_DESC(pciehp_poll_mode, "Using polling mechanism for hot-plug events or not");
62MODULE_PARM_DESC(pciehp_poll_time, "Polling mechanism frequency, in seconds"); 60MODULE_PARM_DESC(pciehp_poll_time, "Polling mechanism frequency, in seconds");
63MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if _OSC and OSHP are missing"); 61MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if _OSC and OSHP are missing");
64MODULE_PARM_DESC(pciehp_slot_with_bus, "Use bus number in the slot name");
65 62
66#define PCIE_MODULE_NAME "pciehp" 63#define PCIE_MODULE_NAME "pciehp"
67 64
@@ -194,6 +191,7 @@ static int init_slots(struct controller *ctrl)
194 struct slot *slot; 191 struct slot *slot;
195 struct hotplug_slot *hotplug_slot; 192 struct hotplug_slot *hotplug_slot;
196 struct hotplug_slot_info *info; 193 struct hotplug_slot_info *info;
194 int len, dup = 1;
197 int retval = -ENOMEM; 195 int retval = -ENOMEM;
198 196
199 list_for_each_entry(slot, &ctrl->slot_list, slot_list) { 197 list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
@@ -220,15 +218,24 @@ static int init_slots(struct controller *ctrl)
220 dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " 218 dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
221 "slot_device_offset=%x\n", slot->bus, slot->device, 219 "slot_device_offset=%x\n", slot->bus, slot->device,
222 slot->hp_slot, slot->number, ctrl->slot_device_offset); 220 slot->hp_slot, slot->number, ctrl->slot_device_offset);
221duplicate_name:
223 retval = pci_hp_register(hotplug_slot, 222 retval = pci_hp_register(hotplug_slot,
224 ctrl->pci_dev->subordinate, 223 ctrl->pci_dev->subordinate,
225 slot->device); 224 slot->device);
226 if (retval) { 225 if (retval) {
226 /*
227 * If slot N already exists, we'll try to create
228 * slot N-1, N-2 ... N-M, until we overflow.
229 */
230 if (retval == -EEXIST) {
231 len = snprintf(slot->name, SLOT_NAME_SIZE,
232 "%d-%d", slot->number, dup++);
233 if (len < SLOT_NAME_SIZE)
234 goto duplicate_name;
235 else
236 err("duplicate slot name overflow\n");
237 }
227 err("pci_hp_register failed with error %d\n", retval); 238 err("pci_hp_register failed with error %d\n", retval);
228 if (retval == -EEXIST)
229 err("Failed to register slot because of name "
230 "collision. Try \'pciehp_slot_with_bus\' "
231 "module option.\n");
232 goto error_info; 239 goto error_info;
233 } 240 }
234 /* create additional sysfs entries */ 241 /* create additional sysfs entries */
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index ad27e9e225a6..ab31f5ba665d 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1030,15 +1030,6 @@ static void pcie_shutdown_notification(struct controller *ctrl)
1030 pciehp_free_irq(ctrl); 1030 pciehp_free_irq(ctrl);
1031} 1031}
1032 1032
1033static void make_slot_name(struct slot *slot)
1034{
1035 if (pciehp_slot_with_bus)
1036 snprintf(slot->name, SLOT_NAME_SIZE, "%04d_%04d",
1037 slot->bus, slot->number);
1038 else
1039 snprintf(slot->name, SLOT_NAME_SIZE, "%d", slot->number);
1040}
1041
1042static int pcie_init_slot(struct controller *ctrl) 1033static int pcie_init_slot(struct controller *ctrl)
1043{ 1034{
1044 struct slot *slot; 1035 struct slot *slot;
@@ -1053,7 +1044,7 @@ static int pcie_init_slot(struct controller *ctrl)
1053 slot->device = ctrl->slot_device_offset + slot->hp_slot; 1044 slot->device = ctrl->slot_device_offset + slot->hp_slot;
1054 slot->hpc_ops = ctrl->hpc_ops; 1045 slot->hpc_ops = ctrl->hpc_ops;
1055 slot->number = ctrl->first_slot; 1046 slot->number = ctrl->first_slot;
1056 make_slot_name(slot); 1047 snprintf(slot->name, SLOT_NAME_SIZE, "%d", slot->number);
1057 mutex_init(&slot->lock); 1048 mutex_init(&slot->lock);
1058 INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work); 1049 INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
1059 list_add(&slot->slot_list, &ctrl->slot_list); 1050 list_add(&slot->slot_list, &ctrl->slot_list);