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

Browse source 
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 <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
This commit is contained in:
Bjorn Helgaas 2010-02-23 10:24:31 -07:00 • committed by Jesse Barnes
commit 89a74ecccd
11 changed files with 32 additions and 41 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/pci/bus.c
View file

@ -43,6 +43,7 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
void *alignf_data)
{
int i, ret = -ENOMEM;
struct resource *r;
resource_size_t max = -1;
type_mask |= IORESOURCE_IO | IORESOURCE_MEM;
@ -51,8 +52,7 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
if (!(res->flags & IORESOURCE_MEM_64))
max = PCIBIOS_MAX_MEM_32;
for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
struct resource *r = bus->resource[i];
pci_bus_for_each_resource(bus, r, i) {
if (!r)
continue;

9
drivers/pci/hotplug/shpchp_sysfs.c
View file

@ -47,8 +47,7 @@ static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, cha
bus = pdev->subordinate;
out += sprintf(buf, "Free resources: memory\n");
for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
res = bus->resource[index];
pci_bus_for_each_resource(bus, res, index) {
if (res && (res->flags & IORESOURCE_MEM) &&
!(res->flags & IORESOURCE_PREFETCH)) {
out += sprintf(out, "start = %8.8llx, "
@ -58,8 +57,7 @@ static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, cha
}
}
out += sprintf(out, "Free resources: prefetchable memory\n");
for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
res = bus->resource[index];
pci_bus_for_each_resource(bus, res, index) {
if (res && (res->flags & IORESOURCE_MEM) &&
(res->flags & IORESOURCE_PREFETCH)) {
out += sprintf(out, "start = %8.8llx, "
@ -69,8 +67,7 @@ static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, cha
}
}
out += sprintf(out, "Free resources: IO\n");
for (index = 0; index < PCI_BUS_NUM_RESOURCES; index++) {
res = bus->resource[index];
pci_bus_for_each_resource(bus, res, index) {
if (res && (res->flags & IORESOURCE_IO)) {
out += sprintf(out, "start = %8.8llx, "
"length = %8.8llx\n",

5
drivers/pci/pci.c
View file

@ -386,10 +386,9 @@ pci_find_parent_resource(const struct pci_dev *dev, struct resource *res)
{
const struct pci_bus *bus = dev->bus;
int i;
struct resource *best = NULL;
struct resource *best = NULL, *r;
for(i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
struct resource *r = bus->resource[i];
pci_bus_for_each_resource(bus, r, i) {
if (!r)
continue;
if (res->start && !(res->start >= r->start && res->end <= r->end))

10
drivers/pci/setup-bus.c
View file

@ -387,8 +387,7 @@ static struct resource *find_free_bus_resource(struct pci_bus *bus, unsigned lon
unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM |
IORESOURCE_PREFETCH;
for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
r = bus->resource[i];
pci_bus_for_each_resource(bus, r, i) {
if (r == &ioport_resource || r == &iomem_resource)
continue;
if (r && (r->flags & type_mask) == type && !r->parent)
@ -803,11 +802,10 @@ static void __ref pci_bus_release_bridge_resources(struct pci_bus *bus,
static void pci_bus_dump_res(struct pci_bus *bus)
{
int i;
for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
struct resource *res = bus->resource[i];
struct resource *res;
int i;
pci_bus_for_each_resource(bus, res, i) {
if (!res || !res->end || !res->flags)
continue;