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

[Wei Yang]

On Mon, Jun 01, 2015 at 06:20:05PM -0500, Bjorn Helgaas wrote:
>On Tue, May 19, 2015 at 06:50:05PM +0800, Wei Yang wrote:
>> As commit ac205b7b ("PCI: make sriov work with hotplug remove") indicates,
>
>The conventional reference is:
>
>  ac205b7bb72f ("PCI: make sriov work with hotplug remove")
>

Thanks, will change it in next version.

>> 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));
>>  		pci_stop_and_remove_bus_device(dev);
>>  	}
>> -- 
>> 1.7.9.5
>> 

-- 
Richard Yang
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