src/patches/suse-2.6.27.25/patches.xen/xen3-x86-fix-nodac

   1 From: Tejun Heo <tj@kernel.org>
   2 Subject: x86: fix iommu=nodac parameter handling
   3 References: bnc#463829, bnc#482220
   4
   5 nodac should forbid dac not instead of enabling it.  Fix it.
   6
   7 Signed-off-by: Tejun Heo <tj@kernel.org>
   8 Signed-off-by: Tejun Heo <teheo@suse.de>
   9 Automatically created from "patches.arch/x86-fix-nodac" by xen-port-patches.py
  10
  11 --- sle11-2009-03-04.orig/arch/x86/kernel/pci-dma-xen.c 2009-03-04 11:29:03.000000000 +0100
  12 +++ sle11-2009-03-04/arch/x86/kernel/pci-dma-xen.c      2009-03-04 11:37:52.000000000 +0100
  13 @@ -198,7 +198,7 @@ static __init int iommu_setup(char *p)
  14                 if (!strncmp(p, "allowdac", 8))
  15                         forbid_dac = 0;
  16                 if (!strncmp(p, "nodac", 5))
  17 -                       forbid_dac = -1;
  18 +                       forbid_dac = 1;
  19                 if (!strncmp(p, "usedac", 6)) {
  20                         forbid_dac = -1;
  21                         return 1;