[PATCH] PCI: make MSI quirk inheritable from the pci bus

It turns out AMD 8131 quirk only affects MSI for devices behind the 8131 bridge.
Handle this by adding a flags field in pci_bus, inherited from parent to child.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3bc0fcd71d0..542e7dfb371 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -347,6 +347,7 @@ pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr)
         child->parent = parent;
         child->ops = parent->ops;
         child->sysdata = parent->sysdata;
+        child->bus_flags = parent->bus_flags;
         child->bridge = get_device(&bridge->dev);
 
         child->class_dev.class = &pcibus_class;