From: David Ahern <dsahern@gmail.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: bhelgaas@google.com, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] pci: Account for virtual buses in pci_acs_path_enabled
Date: Sun, 05 Aug 2012 22:51:53 -0600 [thread overview]
Message-ID: <501F4D69.9060100@gmail.com> (raw)
In-Reply-To: <20120804181445.6598.6505.stgit@bling.home>
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@redhat.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@gmail.com>
next prev parent reply other threads:[~2012-08-06 4:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-04 18:19 [PATCH] pci: Account for virtual buses in pci_acs_path_enabled Alex Williamson
2012-08-06 4:51 ` David Ahern [this message]
2012-08-06 5:30 ` Bjorn Helgaas
2012-08-06 5:55 ` Alex Williamson
2012-08-06 20:47 ` Bjorn Helgaas
2012-08-07 21:50 ` Don Dutile
2012-08-08 6:00 ` Bjorn Helgaas
2012-08-08 13:51 ` David Ahern
2012-08-08 15:24 ` Alex Williamson
2012-08-08 19:33 ` Don Dutile
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