X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=src%2Fpatches%2Fsuse-2.6.27.31%2Fpatches.arch%2Fx86-fix-nodac;fp=src%2Fpatches%2Fsuse-2.6.27.31%2Fpatches.arch%2Fx86-fix-nodac;h=d9172459895062f50bfff8a76a8187033504cdfa;hb=2cb7cef9f877c88c82c959e2944ff02a12d068fa;hp=0000000000000000000000000000000000000000;hpb=836f873377e58243cc856caa0586954efff79185;p=people%2Fpmueller%2Fipfire-2.x.git

diff --git a/src/patches/suse-2.6.27.31/patches.arch/x86-fix-nodac b/src/patches/suse-2.6.27.31/patches.arch/x86-fix-nodac
new file mode 100644
index 0000000000..d917245989
--- /dev/null
+++ b/src/patches/suse-2.6.27.31/patches.arch/x86-fix-nodac
@@ -0,0 +1,25 @@
+From: Tejun Heo <tj@kernel.org>
+Subject: x86: fix iommu=nodac parameter handling
+References: bnc#463829
+
+nodac should forbid dac not instead of enabling it.  Fix it.
+
+Signed-off-by: Tejun Heo <tj@kernel.org>
+Signed-off-by: Tejun Heo <teheo@suse.de>
+---
+ arch/x86/kernel/pci-dma.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: linux-2.6.27-SLE11_BRANCH/arch/x86/kernel/pci-dma.c
+===================================================================
+--- linux-2.6.27-SLE11_BRANCH.orig/arch/x86/kernel/pci-dma.c
++++ linux-2.6.27-SLE11_BRANCH/arch/x86/kernel/pci-dma.c
+@@ -175,7 +175,7 @@ static __init int iommu_setup(char *p)
+ 		if (!strncmp(p, "allowdac", 8))
+ 			forbid_dac = 0;
+ 		if (!strncmp(p, "nodac", 5))
+-			forbid_dac = -1;
++			forbid_dac = 1;
+ 		if (!strncmp(p, "usedac", 6)) {
+ 			forbid_dac = -1;
+ 			return 1;