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PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs

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No functional change; this converts loops that iterate from 0 to
PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the
pci_bus_for_each_resource() iterator instead.

This doesn't change the way resources are stored; it merely removes
dependencies on the fact that they're in a table.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas
2010-02-23 10:24:31 -07:00
committed by Jesse Barnes
parent 2adf75160b
commit 89a74ecccd
11 changed files with 32 additions and 41 deletions
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11
arch/powerpc/kernel/pci-common.c
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@@ -1047,10 +1047,8 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus)
struct pci_dev *dev = bus->self;
for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
if ((res = bus->resource[i]) == NULL)
continue;
if (!res->flags)
pci_bus_for_each_resource(bus, res, i) {
if (!res || !res->flags)
continue;
if (i >= 3 && bus->self->transparent)
continue;
@@ -1277,9 +1275,8 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus)
pr_debug("PCI: Allocating bus resources for %04x:%02x...\n",
pci_domain_nr(bus), bus->number);
for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
if ((res = bus->resource[i]) == NULL || !res->flags
|| res->start > res->end || res->parent)
pci_bus_for_each_resource(bus, res, i) {
if (!res || !res->flags || res->start > res->end || res->parent)
continue;
if (bus->parent == NULL)
pr = (res->flags & IORESOURCE_IO) ?