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authorIngo Molnar <mingo@elte.hu>2008-09-02 17:54:10 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-09-08 04:44:32 -0700
commit06a27e265d6be92db8ef6e4abbef33c45453b2cb (patch)
tree8227b5de75e1f802003129b3cf24f79e518f683e
parentee69675af511022b8a324c4a208a91f901f0a6c4 (diff)
x86: work around MTRR mask setting, v2
commit 9754a5b840a209bc1f192d59f63e81b698a55ac8 upstream x86: work around MTRR mask setting, v2 improve the debug printout: - make it actually display something - print it only once would be nice to have a WARN_ONCE() facility, to feed such things to kerneloops.org. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--arch/x86/kernel/cpu/mtrr/generic.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 10a46dec1f15..745b974d5c95 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -387,7 +387,12 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
tmp |= ~((1<<(hi - 1)) - 1);
if (tmp != mask_lo) {
- WARN_ON("mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
+ static int once = 1;
+
+ if (once) {
+ printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
+ once = 0;
+ }
mask_lo = tmp;
}
}