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Commit 48b79a14 authored by Aleksandr Bezzubikov's avatar Aleksandr Bezzubikov Committed by Bjorn Helgaas
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PCI: shpchp: Enable bridge bus mastering if MSI is enabled



An SHPC may generate MSIs to notify software about slot or controller
events (SHPC spec r1.0, sec 4.7).  A PCI device can only generate an MSI if
it has bus mastering enabled.

Enable bus mastering if the bridge contains an SHPC that uses MSI for event
notifications.

Signed-off-by: default avatarAleksandr Bezzubikov <zuban32s@gmail.com>
[bhelgaas: changelog]
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarMarcel Apfelbaum <marcel@redhat.com>
Acked-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Cc: stable@vger.kernel.org
parent 16f73eb0
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