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[PATCH] fix memory scribble in arch/i386/pci/fixup.c

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The GET_INDEX() macro should use just the low three bits of the devfn,
otherwise we have a memory scribble in pcie_rootport_aspm_quirk that
overwrites ptype_all

Fix it to be more careful about its arguments while at it.

Acked by Dely Sy <dely.l.sy@intel.com>

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Lameter 2005-05-17 08:48:16 -07:00 committed by Linus Torvalds
parent 8c41a5f50d
commit ff0d2f90fd
1 changed files with 1 additions and 1 deletions
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arch/i386/pci/fixup.c
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@ -253,7 +253,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2, pci
#define MAX_PCIEROOT 6 #define MAX_PCIEROOT 6
static int quirk_aspm_offset[MAX_PCIEROOT << 3]; static int quirk_aspm_offset[MAX_PCIEROOT << 3];
#define GET_INDEX(a, b) (((a - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + b) #define GET_INDEX(a, b) ((((a) - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + ((b) & 7))
static int quirk_pcie_aspm_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value) static int quirk_pcie_aspm_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
{ {