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Diffstat (limited to 'arch/powerpc/kernel/rtas_pci.c')
-rw-r--r--arch/powerpc/kernel/rtas_pci.c33
1 files changed, 4 insertions, 29 deletions
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 73f1934582c2..c2b148b1634a 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -91,26 +91,14 @@ static int rtas_pci_read_config(struct pci_bus *bus,
unsigned int devfn,
int where, int size, u32 *val)
{
- struct device_node *busdn, *dn;
struct pci_dn *pdn;
- bool found = false;
int ret;
- /* Search only direct children of the bus */
*val = 0xFFFFFFFF;
- busdn = pci_bus_to_OF_node(bus);
- for (dn = busdn->child; dn; dn = dn->sibling) {
- pdn = PCI_DN(dn);
- if (pdn && pdn->devfn == devfn
- && of_device_is_available(dn)) {
- found = true;
- break;
- }
- }
- if (!found)
- return PCIBIOS_DEVICE_NOT_FOUND;
+ pdn = pci_get_pdn_by_devfn(bus, devfn);
+ /* Validity of pdn is checked in here */
ret = rtas_read_config(pdn, where, size, val);
if (*val == EEH_IO_ERROR_VALUE(size) &&
eeh_dev_check_failure(pdn_to_eeh_dev(pdn)))
@@ -153,24 +141,11 @@ static int rtas_pci_write_config(struct pci_bus *bus,
unsigned int devfn,
int where, int size, u32 val)
{
- struct device_node *busdn, *dn;
struct pci_dn *pdn;
- bool found = false;
-
- /* Search only direct children of the bus */
- busdn = pci_bus_to_OF_node(bus);
- for (dn = busdn->child; dn; dn = dn->sibling) {
- pdn = PCI_DN(dn);
- if (pdn && pdn->devfn == devfn
- && of_device_is_available(dn)) {
- found = true;
- break;
- }
- }
- if (!found)
- return PCIBIOS_DEVICE_NOT_FOUND;
+ pdn = pci_get_pdn_by_devfn(bus, devfn);
+ /* Validity of pdn is checked in here. */
return rtas_write_config(pdn, where, size, val);
}