Re: Fw: [PATCH][2.6] PCI Scan all functions

[Jake Moilanen <moilanen@austin.ibm.com>]

> Could you please send me a changelog description for this patch?  A bit of
> background for posterity, so other kernel developers can come in a year
> hence and answer the question "what's all this about then?".  Thanks.

Sure.  

On a ppc64 logically partitioned system, there can be a setup where
function 0 of a PCI-PCI bridge is assigned to one partition and
(for example) function 2 is assigned to a second partition.  On the
second partition, it would appear that function 0 does not exist, but
function 2 does.  If all the functions are not scanned, everything under
function 2 would not be detected.

This patch allows devices that don't respond to function 0, but do
respond to other functions to be marked with a quirk and have all of
their functions scanned.  

Thanks,
Jake