Replace those open code, and make code more readable.

Signed-off-by: Yinghai Lu <ying...@kernel.org>
---
 drivers/pci/setup-bus.c |   28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 7e8739e..b23ef4c 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -106,7 +106,7 @@ static resource_size_t get_res_add_size(struct list_head 
*head,
 
        list_for_each_entry(dev_res, head, list) {
                if (dev_res->res == res) {
-                       int idx = res - &dev_res->dev->resource[0];
+                       int idx = pci_dev_resource_idx(dev_res->dev, res);
 
                        dev_printk(KERN_DEBUG, &dev_res->dev->dev,
                                 "res[%d]=%pR get_res_add_size add_size %llx\n",
@@ -124,15 +124,13 @@ static resource_size_t get_res_add_size(struct list_head 
*head,
 static void pdev_sort_resources(struct pci_dev *dev, struct list_head *head)
 {
        int i;
+       struct resource *r;
 
-       for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-               struct resource *r;
+       for_each_pci_resource(dev, r, i, PCI_ALL_RES) {
                struct pci_dev_resource *dev_res, *tmp;
                resource_size_t r_align;
                struct list_head *n;
 
-               r = &dev->resource[i];
-
                if (r->flags & IORESOURCE_PCI_FIXED)
                        continue;
 
@@ -237,7 +235,7 @@ static void reassign_resources_sorted(struct list_head 
*realloc_head,
                if (!found_match)/* just skip */
                        continue;
 
-               idx = res - &add_res->dev->resource[0];
+               idx = pci_dev_resource_idx(add_res->dev, res);
                add_size = add_res->add_size;
                if (!resource_size(res)) {
                        res->start = add_res->start;
@@ -280,7 +278,7 @@ static void assign_requested_resources_sorted(struct 
list_head *head,
 
        list_for_each_entry(dev_res, head, list) {
                res = dev_res->res;
-               idx = res - &dev_res->dev->resource[0];
+               idx = pci_dev_resource_idx(dev_res->dev, res);
                if (resource_size(res) &&
                    pci_assign_resource(dev_res->dev, idx)) {
                        if (fail_head) {
@@ -757,9 +755,9 @@ static void pbus_size_io(struct pci_bus *bus, 
resource_size_t min_size,
        io_align = min_align = window_alignment(bus, IORESOURCE_IO);
        list_for_each_entry(dev, &bus->devices, bus_list) {
                int i;
+               struct resource *r;
 
-               for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                       struct resource *r = &dev->resource[i];
+               for_each_pci_resource(dev, r, i, PCI_ALL_RES) {
                        unsigned long r_size;
 
                        if (r->parent || !(r->flags & IORESOURCE_IO))
@@ -870,9 +868,9 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long 
mask,
 
        list_for_each_entry(dev, &bus->devices, bus_list) {
                int i;
+               struct resource *r;
 
-               for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                       struct resource *r = &dev->resource[i];
+               for_each_pci_resource(dev, r, i, PCI_ALL_RES) {
                        resource_size_t r_size;
 
                        if (r->parent || (r->flags & mask) != type)
@@ -1196,9 +1194,7 @@ static void pci_bridge_release_resources(struct pci_bus 
*bus,
                                  IORESOURCE_PREFETCH;
 
        dev = bus->self;
-       for (idx = PCI_BRIDGE_RESOURCES; idx <= PCI_BRIDGE_RESOURCE_END;
-            idx++) {
-               r = &dev->resource[idx];
+       for_each_pci_resource(dev, r, idx, PCI_BRIDGE_RES) {
                if ((r->flags & type_mask) != type)
                        continue;
                if (!r->parent)
@@ -1369,9 +1365,9 @@ static void __init pci_realloc_detect(void)
 
        for_each_pci_dev(dev) {
                int i;
+               struct resource *r;
 
-               for (i = PCI_IOV_RESOURCES; i <= PCI_IOV_RESOURCE_END; i++) {
-                       struct resource *r = &dev->resource[i];
+               for_each_pci_resource(dev, r, i, PCI_IOV_RES) {
 
                        /* Not assigned, or rejected by kernel ? */
                        if (r->flags && !r->start) {
-- 
1.7.10.4

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