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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-09-26 04:22:39 (GMT)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-09-26 04:22:39 (GMT)
commitbb36c44557a4fcbaa17c0f2776e12a05a691b432 (patch)
tree5a7e7a92f9184bbd32e79649f5239af474b537cf /arch
parentd12b524f8b2f4e45cabe8bc1501e8b967d543111 (diff)
downloadlinux-bb36c44557a4fcbaa17c0f2776e12a05a691b432.tar.xz
powerpc/pci: Don't configure PCIe settings when PCI_PROBE_ONLY is set
We don't want to configure PCI Express Max Payload Size or Max Read Request Size on systems that set that flag. The firmware will have done it for us, and under hypervisors such as pHyp we don't even see the parent switches and bridges and thus can make no assumption on what values are safe to use. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/pci-common.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 1bd47f3..677eccc 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1732,7 +1732,7 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
/* Configure PCI Express settings */
- if (bus) {
+ if (bus && !pci_has_flag(PCI_PROBE_ONLY)) {
struct pci_bus *child;
list_for_each_entry(child, &bus->children, node) {
struct pci_dev *self = child->self;