On 09/15/2015 01:18 PM, Bjorn Helgaas wrote:

We could also argue that when CONFIG_PCI_MSI=n, dev->msi[x]_cap should not
even exist, so we could catch that a build-time instead of run-time.  My
personal opinion is that it's not a big deal, and the existing code that
includes dev->msi[x]_cap and initializes it even when CONFIG_PCI_MSI=n
allows some useful code sharing.

Nice Bjorn, so let's follow your idea regarding moving the code of MSI 
capabilities initialization to allow some code sharing. It's good option 
specially since it avoids the same problem (MSI capabilities not 
found)to occur in SPARC arch too.

Sorry for my delay in response, soon I'll send the patch to the list.

Cheers,


Guilherme