[PATCH] PCI: 6700/6702PXH quirk

On the 6700/6702 PXH part, a MSI may get corrupted if an ACPI hotplug
driver and SHPC driver in MSI mode are used together.

This patch will prevent MSI from being enabled for the SHPC as part of
an early pci quirk, as well as on any pci device which sets the no_msi
bit.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 8621cf42b46f..bc4c40000c0d 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -556,7 +556,8 @@ struct pci_dev {
         /* keep track of device state */
         unsigned int    is_enabled:1;   /* pci_enable_device has been called */
         unsigned int    is_busmaster:1; /* device is busmaster */
-        
+        unsigned int    no_msi:1;       /* device may not use msi */
+
         u32             saved_config_space[16]; /* config space saved at suspend time */
         struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */
         int rom_attr_enabled;           /* has display of the rom attribute been enabled? */