src/patches/suse-2.6.27.39/patches.arch/ppc-powerpc-fix-pci-unmap-io.patch

   1 Subject: powerpc/pci: Fix unmapping of IO space on 64-bit
   2 From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
   3 References: 439491
   4
   5 A typo/thinko made us pass the wrong argument to __flush_hash_table_range
   6 when unplugging bridges, thus not flushing all the translations for
   7 the IO space on unplug.
   8
   9 This causes the hypervisor to refuse unplugging slots.
  10
  11 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
  12 Signed-off-by: Olaf Hering <olh@suse.de>
  13
  14 ---
  15  arch/powerpc/kernel/pci_64.c |    2 +-
  16  1 file changed, 1 insertion(+), 1 deletion(-)
  17
  18 --- a/arch/powerpc/kernel/pci_64.c
  19 +++ b/arch/powerpc/kernel/pci_64.c
  20 @@ -455,7 +455,7 @@ int pcibios_unmap_io_space(struct pci_bu
  21                     pci_name(bus->self));
  22
  23                 __flush_hash_table_range(&init_mm, res->start + _IO_BASE,
  24 -                                        res->end - res->start + 1);
  25 +                                        res->end + _IO_BASE + 1);
  26                 return 0;
  27         }
  28