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Date: Sun, 05 Aug 2012 22:51:53 -0600 From: David Ahern <dsahern@...il.com> To: Alex Williamson <alex.williamson@...hat.com> CC: bhelgaas@...gle.com, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] pci: Account for virtual buses in pci_acs_path_enabled On 8/4/12 12:19 PM, Alex Williamson wrote: > It's possible to have buses without an associated bridge > (bus->self == NULL). SR-IOV can generate such buses. When > we find these, skip to the parent bus to look for the next > ACS test. > > Signed-off-by: Alex Williamson <alex.williamson@...hat.com> > --- > > David Ahern reported an oops from iommu drivers passing NULL into > this function for the same mistake. Harden this function against > assuming bus->self is valid as well. David, please include this > patch as well as the iommu patches in your testing. Tested-by: David Ahern <dsahern@...il.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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