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

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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>
This commit is contained in:
Michael S. Tsirkin 2006-02-14 18:52:22 +02:00 • committed by Greg Kroah-Hartman
parent e5548e960f
commit 6e325a62a0
4 changed files with 15 additions and 3 deletions
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7
include/linux/pci.h
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@ -95,6 +95,11 @@ enum pci_channel_state {
pci_channel_io_perm_failure = (__force pci_channel_state_t) 3,
};
typedef unsigned short __bitwise pci_bus_flags_t;
enum pci_bus_flags {
PCI_BUS_FLAGS_NO_MSI = (pci_bus_flags_t) 1,
};
/*
* The pci_dev structure is used to describe PCI devices.
*/
@ -203,7 +208,7 @@ struct pci_bus {
char name[48];
unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */
unsigned short pad2;
pci_bus_flags_t bus_flags; /* Inherited by child busses */
struct device *bridge;
struct class_device class_dev;
struct bin_attribute *legacy_io; /* legacy I/O for this bus */