timers/x86/hpet: Use HPET_COUNTER to specify the hpet counter in vread_hpet()
authorSatoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Fri, 15 Feb 2013 07:58:14 +0000 (16:58 +0900)
committerIngo Molnar <mingo@kernel.org>
Fri, 15 Feb 2013 11:13:18 +0000 (12:13 +0100)
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>
arch/x86/vdso/vclock_gettime.c

index 205ad328aa52810975dd332771a16911f5e6935b..c74436e687bf8984b722efa1a657e1a6a8b47f3b 100644 (file)
@@ -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