PCI: ibmphp: list_for_each to list_for_each_entry

Make code more readable with list_for_each_entry().

Signed-off-by: Cordelia Sam <cordesam@gmail.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 23 insertions, 69 deletions

diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c
index 7d27631e6e62..1bc08a5b2c7d 100644
--- a/drivers/pci/hotplug/ibmphp_ebda.c
+++ b/drivers/pci/hotplug/ibmphp_ebda.c
@@ -123,10 +123,8 @@ static struct ebda_pci_rsrc *alloc_ebda_pci_rsrc (void)
 static void __init print_bus_info (void)
 {
         struct bus_info *ptr;
-        struct list_head *ptr1;
         
-        list_for_each (ptr1, &bus_info_head) {
-                ptr = list_entry (ptr1, struct bus_info, bus_info_list);
+        list_for_each_entry (ptr, &bus_info_head, bus_info_list) {
                 debug ("%s - slot_min = %x\n", __func__, ptr->slot_min);
                 debug ("%s - slot_max = %x\n", __func__, ptr->slot_max);
                 debug ("%s - slot_count = %x\n", __func__, ptr->slot_count);
@@ -146,10 +144,8 @@ static void __init print_bus_info (void)
 static void print_lo_info (void)
 {
         struct rio_detail *ptr;
-        struct list_head *ptr1;
         debug ("print_lo_info ----\n"); 
-        list_for_each (ptr1, &rio_lo_head) {
-                ptr = list_entry (ptr1, struct rio_detail, rio_detail_list);
+        list_for_each_entry (ptr, &rio_lo_head, rio_detail_list) {
                 debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id);
                 debug ("%s - rio_type = %x\n", __func__, ptr->rio_type);
                 debug ("%s - owner_id = %x\n", __func__, ptr->owner_id);
@@ -163,10 +159,8 @@ static void print_lo_info (void)
 static void print_vg_info (void)
 {
         struct rio_detail *ptr;
-        struct list_head *ptr1;
         debug ("%s ---\n", __func__);
-        list_for_each (ptr1, &rio_vg_head) {
-                ptr = list_entry (ptr1, struct rio_detail, rio_detail_list);
+        list_for_each_entry (ptr, &rio_vg_head, rio_detail_list) {
                 debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id);
                 debug ("%s - rio_type = %x\n", __func__, ptr->rio_type);
                 debug ("%s - owner_id = %x\n", __func__, ptr->owner_id);
@@ -180,10 +174,8 @@ static void print_vg_info (void)
 static void __init print_ebda_pci_rsrc (void)
 {
         struct ebda_pci_rsrc *ptr;
-        struct list_head *ptr1;
 
-        list_for_each (ptr1, &ibmphp_ebda_pci_rsrc_head) {
-                ptr = list_entry (ptr1, struct ebda_pci_rsrc, ebda_pci_rsrc_list);
+        list_for_each_entry (ptr, &ibmphp_ebda_pci_rsrc_head, ebda_pci_rsrc_list) {
                 debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", 
                         __func__, ptr->rsrc_type ,ptr->bus_num, ptr->dev_fun,ptr->start_addr, ptr->end_addr);
         }
@@ -192,10 +184,8 @@ static void __init print_ebda_pci_rsrc (void)
 static void __init print_ibm_slot (void)
 {
         struct slot *ptr;
-        struct list_head *ptr1;
 
-        list_for_each (ptr1, &ibmphp_slot_head) {
-                ptr = list_entry (ptr1, struct slot, ibm_slot_list);
+        list_for_each_entry (ptr, &ibmphp_slot_head, ibm_slot_list) {
                 debug ("%s - slot_number: %x\n", __func__, ptr->number);
         }
 }
@@ -203,10 +193,8 @@ static void __init print_ibm_slot (void)
 static void __init print_opt_vg (void)
 {
         struct opt_rio *ptr;
-        struct list_head *ptr1;
         debug ("%s ---\n", __func__);
-        list_for_each (ptr1, &opt_vg_head) {
-                ptr = list_entry (ptr1, struct opt_rio, opt_rio_list);
+        list_for_each_entry (ptr, &opt_vg_head, opt_rio_list) {
                 debug ("%s - rio_type %x\n", __func__, ptr->rio_type);
                 debug ("%s - chassis_num: %x\n", __func__, ptr->chassis_num);
                 debug ("%s - first_slot_num: %x\n", __func__, ptr->first_slot_num);
@@ -217,13 +205,9 @@ static void __init print_opt_vg (void)
 static void __init print_ebda_hpc (void)
 {
         struct controller *hpc_ptr;
-        struct list_head *ptr1;
         u16 index;
 
-        list_for_each (ptr1, &ebda_hpc_head) {
-
-                hpc_ptr = list_entry (ptr1, struct controller, ebda_hpc_list); 
-
+        list_for_each_entry (hpc_ptr, &ebda_hpc_head, ebda_hpc_list) {
                 for (index = 0; index < hpc_ptr->slot_count; index++) {
                         debug ("%s - physical slot#: %x\n", __func__, hpc_ptr->slots[index].slot_num);
                         debug ("%s - pci bus# of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_bus_num);
@@ -460,9 +444,7 @@ static int __init ebda_rio_table (void)
 static struct opt_rio *search_opt_vg (u8 chassis_num)
 {
         struct opt_rio *ptr;
-        struct list_head *ptr1;
-        list_for_each (ptr1, &opt_vg_head) {
-                ptr = list_entry (ptr1, struct opt_rio, opt_rio_list);
+        list_for_each_entry (ptr, &opt_vg_head, opt_rio_list) {
                 if (ptr->chassis_num == chassis_num)
                         return ptr;
         }               
@@ -473,10 +455,8 @@ static int __init combine_wpg_for_chassis (void)
 {
         struct opt_rio *opt_rio_ptr = NULL;
         struct rio_detail *rio_detail_ptr = NULL;
-        struct list_head *list_head_ptr = NULL;
         
-        list_for_each (list_head_ptr, &rio_vg_head) {
-                rio_detail_ptr = list_entry (list_head_ptr, struct rio_detail, rio_detail_list);
+        list_for_each_entry (rio_detail_ptr, &rio_vg_head, rio_detail_list) {
                 opt_rio_ptr = search_opt_vg (rio_detail_ptr->chassis_num);
                 if (!opt_rio_ptr) {
                         opt_rio_ptr = kzalloc(sizeof(struct opt_rio), GFP_KERNEL);
@@ -497,14 +477,12 @@ static int __init combine_wpg_for_chassis (void)
 }       
 
 /*
- * reorgnizing linked list of expansion box      
+ * reorganizing linked list of expansion box
  */
 static struct opt_rio_lo *search_opt_lo (u8 chassis_num)
 {
         struct opt_rio_lo *ptr;
-        struct list_head *ptr1;
-        list_for_each (ptr1, &opt_lo_head) {
-                ptr = list_entry (ptr1, struct opt_rio_lo, opt_rio_lo_list);
+        list_for_each_entry (ptr, &opt_lo_head, opt_rio_lo_list) {
                 if (ptr->chassis_num == chassis_num)
                         return ptr;
         }               
@@ -515,10 +493,8 @@ static int combine_wpg_for_expansion (void)
 {
         struct opt_rio_lo *opt_rio_lo_ptr = NULL;
         struct rio_detail *rio_detail_ptr = NULL;
-        struct list_head *list_head_ptr = NULL;
         
-        list_for_each (list_head_ptr, &rio_lo_head) {
-                rio_detail_ptr = list_entry (list_head_ptr, struct rio_detail, rio_detail_list);
+        list_for_each_entry (rio_detail_ptr, &rio_lo_head, rio_detail_list) {
                 opt_rio_lo_ptr = search_opt_lo (rio_detail_ptr->chassis_num);
                 if (!opt_rio_lo_ptr) {
                         opt_rio_lo_ptr = kzalloc(sizeof(struct opt_rio_lo), GFP_KERNEL);
@@ -550,20 +526,17 @@ static int first_slot_num (u8 slot_num, u8 first_slot, u8 var)
 {
         struct opt_rio *opt_vg_ptr = NULL;
         struct opt_rio_lo *opt_lo_ptr = NULL;
-        struct list_head *ptr = NULL;
         int rc = 0;
 
         if (!var) {
-                list_for_each (ptr, &opt_vg_head) {
-                        opt_vg_ptr = list_entry (ptr, struct opt_rio, opt_rio_list);
+                list_for_each_entry (opt_vg_ptr, &opt_vg_head, opt_rio_list) {
                         if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { 
                                 rc = -ENODEV;
                                 break;
                         }
                 }
         } else {
-                list_for_each (ptr, &opt_lo_head) {
-                        opt_lo_ptr = list_entry (ptr, struct opt_rio_lo, opt_rio_lo_list);
+                list_for_each_entry (opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) {
                         if ((first_slot < opt_lo_ptr->first_slot_num) && (slot_num >= opt_lo_ptr->first_slot_num)) {
                                 rc = -ENODEV;
                                 break;
@@ -576,10 +549,8 @@ static int first_slot_num (u8 slot_num, u8 first_slot, u8 var)
 static struct opt_rio_lo * find_rxe_num (u8 slot_num)
 {
         struct opt_rio_lo *opt_lo_ptr;
-        struct list_head *ptr;
 
-        list_for_each (ptr, &opt_lo_head) {
-                opt_lo_ptr = list_entry (ptr, struct opt_rio_lo, opt_rio_lo_list);
+        list_for_each_entry (opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) {
                 //check to see if this slot_num belongs to expansion box
                 if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1))) 
                         return opt_lo_ptr;
@@ -590,10 +561,8 @@ static struct opt_rio_lo * find_rxe_num (u8 slot_num)
 static struct opt_rio * find_chassis_num (u8 slot_num)
 {
         struct opt_rio *opt_vg_ptr;
-        struct list_head *ptr;
 
-        list_for_each (ptr, &opt_vg_head) {
-                opt_vg_ptr = list_entry (ptr, struct opt_rio, opt_rio_list);
+        list_for_each_entry (opt_vg_ptr, &opt_vg_head, opt_rio_list) {
                 //check to see if this slot_num belongs to chassis 
                 if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0))) 
                         return opt_vg_ptr;
@@ -607,11 +576,9 @@ static struct opt_rio * find_chassis_num (u8 slot_num)
 static u8 calculate_first_slot (u8 slot_num)
 {
         u8 first_slot = 1;
-        struct list_head * list;
         struct slot * slot_cur;
         
-        list_for_each (list, &ibmphp_slot_head) {
-                slot_cur = list_entry (list, struct slot, ibm_slot_list);
+        list_for_each_entry (slot_cur, &ibmphp_slot_head, ibm_slot_list) {
                 if (slot_cur->ctrl) {
                         if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) 
                                 first_slot = slot_cur->ctrl->ending_slot_num;
@@ -767,7 +734,6 @@ static int __init ebda_rsrc_controller (void)
         struct bus_info *bus_info_ptr1, *bus_info_ptr2;
         int rc;
         struct slot *tmp_slot;
-        struct list_head *list;
 
         addr = hpc_list_ptr->phys_addr;
         for (ctlr = 0; ctlr < hpc_list_ptr->num_ctlrs; ctlr++) {
@@ -997,9 +963,7 @@ static int __init ebda_rsrc_controller (void)
 
         }                       /* each hpc  */
 
-        list_for_each (list, &ibmphp_slot_head) {
-                tmp_slot = list_entry (list, struct slot, ibm_slot_list);
-
+        list_for_each_entry (tmp_slot, &ibmphp_slot_head, ibm_slot_list) {
                 snprintf (tmp_slot->hotplug_slot->name, 30, "%s", create_file_name (tmp_slot));
                 pci_hp_register(tmp_slot->hotplug_slot,
                         pci_find_bus(0, tmp_slot->bus), tmp_slot->device);
@@ -1101,10 +1065,8 @@ u16 ibmphp_get_total_controllers (void)
 struct slot *ibmphp_get_slot_from_physical_num (u8 physical_num)
 {
         struct slot *slot;
-        struct list_head *list;
 
-        list_for_each (list, &ibmphp_slot_head) {
-                slot = list_entry (list, struct slot, ibm_slot_list);
+        list_for_each_entry (slot, &ibmphp_slot_head, ibm_slot_list) {
                 if (slot->number == physical_num)
                         return slot;
         }
@@ -1120,10 +1082,8 @@ struct slot *ibmphp_get_slot_from_physical_num (u8 physical_num)
 struct bus_info *ibmphp_find_same_bus_num (u32 num)
 {
         struct bus_info *ptr;
-        struct list_head  *ptr1;
 
-        list_for_each (ptr1, &bus_info_head) {
-                ptr = list_entry (ptr1, struct bus_info, bus_info_list); 
+        list_for_each_entry (ptr, &bus_info_head, bus_info_list) {
                 if (ptr->busno == num) 
                          return ptr;
         }
@@ -1136,10 +1096,8 @@ struct bus_info *ibmphp_find_same_bus_num (u32 num)
 int ibmphp_get_bus_index (u8 num)
 {
         struct bus_info *ptr;
-        struct list_head  *ptr1;
 
-        list_for_each (ptr1, &bus_info_head) {
-                ptr = list_entry (ptr1, struct bus_info, bus_info_list);
+        list_for_each_entry (ptr, &bus_info_head, bus_info_list) {
                 if (ptr->busno == num)  
                         return ptr->index;
         }
@@ -1212,11 +1170,9 @@ static struct pci_driver ibmphp_driver = {
 int ibmphp_register_pci (void)
 {
         struct controller *ctrl;
-        struct list_head *tmp;
         int rc = 0;
 
-        list_for_each (tmp, &ebda_hpc_head) {
-                ctrl = list_entry (tmp, struct controller, ebda_hpc_list);
+        list_for_each_entry (ctrl, &ebda_hpc_head, ebda_hpc_list) {
                 if (ctrl->ctlr_type == 1) {
                         rc = pci_register_driver(&ibmphp_driver);
                         break;
@@ -1227,12 +1183,10 @@ int ibmphp_register_pci (void)
 static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids)
 {
         struct controller *ctrl;
-        struct list_head *tmp;
 
         debug ("inside ibmphp_probe\n");
         
-        list_for_each (tmp, &ebda_hpc_head) {
-                ctrl = list_entry (tmp, struct controller, ebda_hpc_list);
+        list_for_each_entry (ctrl, &ebda_hpc_head, ebda_hpc_list) {
                 if (ctrl->ctlr_type == 1) {
                         if ((dev->devfn == ctrl->u.pci_ctlr.dev_fun) && (dev->bus->number == ctrl->u.pci_ctlr.bus)) {
                                 ctrl->ctrl_dev = dev;