[PATCH] fix memory scribble in arch/i386/pci/fixup.c
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>
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@ -253,7 +253,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2, pci
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#define MAX_PCIEROOT 6
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static int quirk_aspm_offset[MAX_PCIEROOT << 3];
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#define GET_INDEX(a, b) (((a - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + b)
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#define GET_INDEX(a, b) ((((a) - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + ((b) & 7))
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static int quirk_pcie_aspm_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
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{
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