[tip:x86/urgent] Add TAINT_FIRMWARE_WORKAROUND on MTRR fixup

[tip-bot for Prarit Bhargava <prarit@redhat.com>]

Commit-ID:  644ddf588f5dba34df483a6ea8abe639cc102289
Gitweb:     http://git.kernel.org/tip/644ddf588f5dba34df483a6ea8abe639cc102289
Author:     Prarit Bhargava <prarit@redhat.com>
AuthorDate: Tue, 18 Oct 2011 13:24:10 -0400
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Mon, 5 Dec 2011 13:48:50 +0100

Add TAINT_FIRMWARE_WORKAROUND on MTRR fixup

TAINT_FIRMWARE_WORKAROUND should be set when an MTRR fixup
is done.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/1318958650-12447-1-git-send-email-prarit@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/mtrr/generic.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index a71efcdb..e1fe7f4 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -547,6 +547,7 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
 
 		if (tmp != mask_lo) {
 			printk(KERN_WARNING "mtrr: your BIOS has configured an incorrect mask, fixing it.\n");
+			add_taint(TAINT_FIRMWARE_WORKAROUND);
 			mask_lo = tmp;
 		}
 	}