x86: Fix iommu=nodac parameter handling
authorTejun Heo <tj@kernel.org>
Mon, 26 Oct 2009 14:41:46 +0000 (15:41 +0100)
committerIngo Molnar <mingo@elte.hu>
Sun, 8 Nov 2009 12:19:05 +0000 (13:19 +0100)
commit2ae8bb75db1f3de422eb5898f2a063c46c36dba8
treeebdf989299d9e5ec460e164671af0dbdbee13f4b
parent338bac527ed0e35b4cb50390972f15d3cbce92ca
x86: Fix iommu=nodac parameter handling

iommu=nodac should forbid dac instead of enabling it. Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Matteo Frigo <athena@fftw.org>
Cc: <stable@kernel.org> # .32.x and older
LKML-Reference: <4AE5B52A.4050408@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/pci-dma.c