diff options
| author | Matt Fleming <mjf@gentoo.org> | 2008-11-02 16:04:18 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-12-13 15:29:30 -0800 |
| commit | 11ab6487b5c44b37faaa0d01ad362d5afa4f3570 (patch) | |
| tree | 5cf0a6aad70369857f273580d065c3ede0b89b12 /arch | |
| parent | 1c03c0828f200dfde456836fe69febb72979b5c7 (diff) | |
x86: HPET: convert WARN_ON to WARN_ON_ONCE
commit 1de5b0854623d30d01d72cd4ea323eb5f39d1f16 upstream.
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>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/hpet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index 73deaffadd0..759e8da4ed3 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -283,7 +283,7 @@ static int hpet_legacy_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; } |