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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-09 10:21:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-09 10:21:44 -0700
commite15e6119062d20cc96f95c8b345e361589a90244 (patch)
tree101a476be5527d88eacaa828956d7f3a9a7cb316 /arch/x86
parenta637b0d45947df686979b85361ad5bfa9d19fdd3 (diff)
parente253aaf0af51c1e4dc7dd3b26ea8e666bf9a2d8d (diff)
Merge tag 'pci-v3.10-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas: "MSI: PCI: Set ->mask_pos correctly Hotplug: PCI: Delay final fixups until resources are assigned Moorestown: x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0" * tag 'pci-v3.10-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Delay final fixups until resources are assigned x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0 PCI: Set ->mask_pos correctly
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/pci/mrst.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
index 6eb18c42a28..0e0fabf1734 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/mrst.c
@@ -141,6 +141,11 @@ static int pci_device_update_fixed(struct pci_bus *bus, unsigned int devfn,
*/
static bool type1_access_ok(unsigned int bus, unsigned int devfn, int reg)
{
+ if (bus == 0 && (devfn == PCI_DEVFN(2, 0)
+ || devfn == PCI_DEVFN(0, 0)
+ || devfn == PCI_DEVFN(3, 0)))
+ return 1;
+
/* This is a workaround for A0 LNC bug where PCI status register does
* not have new CAP bit set. can not be written by SW either.
*
@@ -150,10 +155,7 @@ static bool type1_access_ok(unsigned int bus, unsigned int devfn, int reg)
*/
if (reg >= 0x100 || reg == PCI_STATUS || reg == PCI_HEADER_TYPE)
return 0;
- if (bus == 0 && (devfn == PCI_DEVFN(2, 0)
- || devfn == PCI_DEVFN(0, 0)
- || devfn == PCI_DEVFN(3, 0)))
- return 1;
+
return 0; /* langwell on others */
}