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authorMatt Fleming <mjf@gentoo.org>2008-11-02 16:04:18 +0000
committerThomas Gleixner <tglx@apollo.(none)>2008-11-10 17:38:07 +0100
commit1de5b0854623d30d01d72cd4ea323eb5f39d1f16 (patch)
treeb8ab2deb2e3a01e08821f3f807b6a46b66843d10 /arch/x86/kernel
parentf7160c7573615ec82c691e294cf80d920b5d588d (diff)
x86: HPET: convert WARN_ON to WARN_ON_ONCE
It is possible to flood the console with call traces if the WARN_ON condition is true because of the frequency with which this function is called. Signed-off-by: Matt Fleming <mjf@gentoo.org> Cc: mingo@elte.hu Cc: venkatesh.pallipadi@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/hpet.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 77017e834cf..f10f9461a43 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -322,7 +322,7 @@ static int hpet_next_event(unsigned long delta,
* what we wrote hit the chip before we compare it to the
* counter.
*/
- WARN_ON((u32)hpet_readl(HPET_T0_CMP) != cnt);
+ WARN_ON_ONCE((u32)hpet_readl(HPET_T0_CMP) != cnt);
return (s32)((u32)hpet_readl(HPET_COUNTER) - cnt) >= 0 ? -ETIME : 0;
}