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: Aleksandr Bezzubikov <[email protected]>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Marcel Apfelbaum <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Cc: [email protected]

0 files changed, 0 insertions, 0 deletions