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-rw-r--r--arch/i386/pci/fixup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
index be52c5ac4e05..8e8e895e1b5a 100644
--- a/arch/i386/pci/fixup.c
+++ b/arch/i386/pci/fixup.c
@@ -253,7 +253,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2, pci
#define MAX_PCIEROOT 6
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)
{