pciehp: cleanup init_slot()

This patch cleans up init_slots() in pciehp_core.c based on
pcihp_skeleton.c. This has no functional change.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 37 insertions, 63 deletions

diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 4fb12fcda56..6a2f427768c 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -50,7 +50,7 @@ extern int pciehp_force;
 #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
 #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
 
-
+#define SLOT_NAME_SIZE 10
 struct slot {
         struct slot *next;
         u8 bus;
@@ -63,6 +63,7 @@ struct slot {
         struct hpc_ops *hpc_ops;
         struct hotplug_slot *hotplug_slot;
         struct list_head        slot_list;
+        char name[SLOT_NAME_SIZE];
 };
 
 struct event_info {
@@ -233,13 +234,6 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl)
         return retval;
 }
 
-#define SLOT_NAME_SIZE 10
-
-static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot)
-{
-        snprintf(buffer, buffer_size, "%04d_%04d", slot->bus, slot->number);
-}
-
 enum php_ctlr_type {
         PCI,
         ISA,
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index f13f31323e8..051d228e634 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -98,101 +98,81 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
         dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
 
         kfree(slot->hotplug_slot->info);
-        kfree(slot->hotplug_slot->name);
         kfree(slot->hotplug_slot);
         kfree(slot);
 }
 
+static void make_slot_name(struct slot *slot)
+{
+        snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d",
+                 slot->bus, slot->number);
+}
+
 static int init_slots(struct controller *ctrl)
 {
         struct slot *slot;
-        struct hpc_ops *hpc_ops;
         struct hotplug_slot *hotplug_slot;
-        struct hotplug_slot_info *hotplug_slot_info;
-        u8 number_of_slots;
-        u8 slot_device;
-        u32 slot_number;
-        int result = -ENOMEM;
+        struct hotplug_slot_info *info;
+        int retval = -ENOMEM;
+        int i;
 
-        number_of_slots = ctrl->num_slots;
-        slot_device = ctrl->slot_device_offset;
-        slot_number = ctrl->first_slot;
-
-        while (number_of_slots) {
+        for (i = 0; i < ctrl->num_slots; i++) {
                 slot = kzalloc(sizeof(*slot), GFP_KERNEL);
                 if (!slot)
                         goto error;
 
-                slot->hotplug_slot =
-                                kzalloc(sizeof(*(slot->hotplug_slot)),
-                                                GFP_KERNEL);
-                if (!slot->hotplug_slot)
+                hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL);
+                if (!hotplug_slot)
                         goto error_slot;
-                hotplug_slot = slot->hotplug_slot;
+                slot->hotplug_slot = hotplug_slot;
 
-                hotplug_slot->info =
-                        kzalloc(sizeof(*(hotplug_slot->info)),
-                                                GFP_KERNEL);
-                if (!hotplug_slot->info)
+                info = kzalloc(sizeof(*info), GFP_KERNEL);
+                if (!info)
                         goto error_hpslot;
-                hotplug_slot_info = hotplug_slot->info;
-                hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL);
-                if (!hotplug_slot->name)
-                        goto error_info;
+                hotplug_slot->info = info;
 
-                slot->ctrl = ctrl;
-                slot->bus = ctrl->slot_bus;
-                slot->device = slot_device;
-                slot->hpc_ops = hpc_ops = ctrl->hpc_ops;
+                hotplug_slot->name = slot->name;
 
+                slot->hp_slot = i;
+                slot->ctrl = ctrl;
+                slot->bus = ctrl->pci_dev->subordinate->number;
+                slot->device = ctrl->slot_device_offset + i;
+                slot->hpc_ops = ctrl->hpc_ops;
                 slot->number = ctrl->first_slot;
-                slot->hp_slot = slot_device - ctrl->slot_device_offset;
 
                 /* register this slot with the hotplug pci core */
                 hotplug_slot->private = slot;
                 hotplug_slot->release = &release_slot;
-                make_slot_name(hotplug_slot->name, SLOT_NAME_SIZE, slot);
+                make_slot_name(slot);
                 hotplug_slot->ops = &pciehp_hotplug_slot_ops;
 
-                hpc_ops->get_power_status(slot,
-                        &(hotplug_slot_info->power_status));
-                hpc_ops->get_attention_status(slot,
-                        &(hotplug_slot_info->attention_status));
-                hpc_ops->get_latch_status(slot,
-                        &(hotplug_slot_info->latch_status));
-                hpc_ops->get_adapter_status(slot,
-                        &(hotplug_slot_info->adapter_status));
+                get_power_status(hotplug_slot, &info->power_status);
+                get_attention_status(hotplug_slot, &info->attention_status);
+                get_latch_status(hotplug_slot, &info->latch_status);
+                get_adapter_status(hotplug_slot, &info->adapter_status);
 
                 dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
-                        "slot_device_offset=%x\n",
-                        slot->bus, slot->device, slot->hp_slot, slot->number,
-                        ctrl->slot_device_offset);
-                result = pci_hp_register(hotplug_slot);
-                if (result) {
-                        err ("pci_hp_register failed with error %d\n", result);
-                        goto error_name;
+                    "slot_device_offset=%x\n", slot->bus, slot->device,
+                    slot->hp_slot, slot->number, ctrl->slot_device_offset);
+                retval = pci_hp_register(hotplug_slot);
+                if (retval) {
+                        err ("pci_hp_register failed with error %d\n", retval);
+                        goto error_info;
                 }
 
                 slot->next = ctrl->slot;
                 ctrl->slot = slot;
-
-                number_of_slots--;
-                slot_device++;
-                slot_number += ctrl->slot_num_inc;
         }
 
         return 0;
-
-error_name:
-        kfree(hotplug_slot->name);
 error_info:
-        kfree(hotplug_slot_info);
+        kfree(info);
 error_hpslot:
         kfree(hotplug_slot);
 error_slot:
         kfree(slot);
 error:
-        return result;
+        return retval;
 }