x86: Fix iommu=nodac parameter handling
authorTejun Heo <tj@kernel.org>
Mon, 26 Oct 2009 14:41:46 +0000 (15:41 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 18 Dec 2009 21:30:56 +0000 (13:30 -0800)
commit55de2daba843d0884557063003e7bb90525c0dc1
tree98575776f378deca5893fb6d3ddec8842acb833b
parent73c22292dd7a0742761dc60a6bff6e8b363d90df
x86: Fix iommu=nodac parameter handling

commit 2ae8bb75db1f3de422eb5898f2a063c46c36dba8 upstream.

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>
LKML-Reference: <4AE5B52A.4050408@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
arch/x86/kernel/pci-dma.c