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| author | David S. Miller <davem@davemloft.net> | 2008-04-17 23:56:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-17 23:56:30 -0700 |
| commit | 1e42198609d73ed1a9adcba2af275c24c2678420 (patch) | |
| tree | 32fd4d9073bfc0f3909af8f9fb4bcff38951d01a /arch/x86/pci/acpi.c | |
| parent | 794eb6bf20ebf992c040ea831cd3a9c64b0c1f7a (diff) | |
| parent | 4b119e21d0c66c22e8ca03df05d9de623d0eb50f (diff) | |
| download | kernel-crypto-1e42198609d73ed1a9adcba2af275c24c2678420.tar.gz kernel-crypto-1e42198609d73ed1a9adcba2af275c24c2678420.tar.xz kernel-crypto-1e42198609d73ed1a9adcba2af275c24c2678420.zip | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/x86/pci/acpi.c')
| -rw-r--r-- | arch/x86/pci/acpi.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 0234f2831bf..378136fb504 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -219,8 +219,21 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do if (pxm >= 0) sd->node = pxm_to_node(pxm); #endif + /* + * Maybe the desired pci bus has been already scanned. In such case + * it is unnecessary to scan the pci bus with the given domain,busnum. + */ + bus = pci_find_bus(domain, busnum); + if (bus) { + /* + * If the desired bus exits, the content of bus->sysdata will + * be replaced by sd. + */ + memcpy(bus->sysdata, sd, sizeof(*sd)); + kfree(sd); + } else + bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd); - bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd); if (!bus) kfree(sd); @@ -228,7 +241,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do if (bus != NULL) { if (pxm >= 0) { printk("bus %d -> pxm %d -> node %d\n", - busnum, pxm, sd->node); + busnum, pxm, pxm_to_node(pxm)); } } #endif |