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Subject[PATCH 3/4] x86: Use pci_claim_resource
Date
Instead of open-coding pci_find_parent_resource and request_resource,
just call pci_claim_resource.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
---
arch/x86/pci/i386.c | 17 +++++++----------
1 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index a85bef2..0fb56db 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -116,7 +116,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
struct pci_bus *bus;
struct pci_dev *dev;
int idx;
- struct resource *r, *pr;
+ struct resource *r;

/* Depth-First Search on bus tree */
list_for_each_entry(bus, bus_list, node) {
@@ -126,9 +126,8 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
r = &dev->resource[idx];
if (!r->flags)
continue;
- pr = pci_find_parent_resource(dev, r);
- if (!r->start || !pr ||
- request_resource(pr, r) < 0) {
+ if (!r->start ||
+ pci_claim_resource(dev, idx) < 0) {
dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx);
/*
* Something is wrong with the region.
@@ -149,7 +148,7 @@ static void __init pcibios_allocate_resources(int pass)
struct pci_dev *dev = NULL;
int idx, disabled;
u16 command;
- struct resource *r, *pr;
+ struct resource *r;

for_each_pci_dev(dev) {
pci_read_config_word(dev, PCI_COMMAND, &command);
@@ -168,8 +167,7 @@ static void __init pcibios_allocate_resources(int pass)
(unsigned long long) r->start,
(unsigned long long) r->end,
r->flags, disabled, pass);
- pr = pci_find_parent_resource(dev, r);
- if (!pr || request_resource(pr, r) < 0) {
+ if (pci_claim_resource(dev, idx) < 0) {
dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx);
/* We'll assign a new address later */
r->end -= r->start;
@@ -197,7 +195,7 @@ static void __init pcibios_allocate_resources(int pass)
static int __init pcibios_assign_resources(void)
{
struct pci_dev *dev = NULL;
- struct resource *r, *pr;
+ struct resource *r;

if (!(pci_probe & PCI_ASSIGN_ROMS)) {
/*
@@ -209,8 +207,7 @@ static int __init pcibios_assign_resources(void)
r = &dev->resource[PCI_ROM_RESOURCE];
if (!r->flags || !r->start)
continue;
- pr = pci_find_parent_resource(dev, r);
- if (!pr || request_resource(pr, r) < 0) {
+ if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) {
r->end -= r->start;
r->start = 0;
}
--
1.6.3.1


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