[PATCH V7 03/10] powerpc/pci: Remove VFs prior to PF

Wei Yang weiyang at linux.vnet.ibm.com
Tue May 19 20:50:05 AEST 2015

As commit ac205b7b ("PCI: make sriov work with hotplug remove") indicates,
VFs, which might be hooked to same PCI bus as their PF should be removed
before the PF. Otherwise, the PCI hot unplugging on the PCI bus would
cause kernel crash.

The patch applies the above pattern to PowerPC PCI hotplug path.

[gwshan: changelog]
Signed-off-by: Wei Yang <weiyang at linux.vnet.ibm.com>
Acked-by: Gavin Shan <gwshan at linux.vnet.ibm.com>
 arch/powerpc/kernel/pci-hotplug.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/pci-hotplug.c b/arch/powerpc/kernel/pci-hotplug.c
index 7ed85a6..98f84ed 100644
--- a/arch/powerpc/kernel/pci-hotplug.c
+++ b/arch/powerpc/kernel/pci-hotplug.c
@@ -50,7 +50,7 @@ void pcibios_remove_pci_devices(struct pci_bus *bus)
 	pr_debug("PCI: Removing devices on bus %04x:%02x\n",
 		 pci_domain_nr(bus),  bus->number);
-	list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
+	list_for_each_entry_safe_reverse(dev, tmp, &bus->devices, bus_list) {
 		pr_debug("   Removing %s...\n", pci_name(dev));

More information about the Linuxppc-dev mailing list