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timers/x86/hpet: Use HPET_COUNTER to specify the hpet counter in vread_hpet()

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vread_hpet() uses "0xf0" as the offset of the hpet counter. To
clarify the meaning of this code, it should use symbolic name,
HPET_COUNTER, instead.

Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Satoru Takeuchi 2013-02-15 16:58:14 +09:00 committed by Ingo Molnar
parent e6c42c295e
commit 36dfbbf136
1 changed files with 1 additions and 1 deletions
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2
arch/x86/vdso/vclock_gettime.c
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@ -60,7 +60,7 @@ notrace static cycle_t vread_tsc(void)
static notrace cycle_t vread_hpet(void)
{
return readl((const void __iomem *)fix_to_virt(VSYSCALL_HPET) + 0xf0);
return readl((const void __iomem *)fix_to_virt(VSYSCALL_HPET) + HPET_COUNTER);
}
#ifdef CONFIG_PARAVIRT_CLOCK