From 64fcbac1f38882d8ae82c44a1c2a676cfa5e79e1 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 20 Aug 2009 15:54:21 +0200 Subject: x86: Simplify timer_ack magic in time_32.c Let the compiler optimize the timer_ack magic away in the 32bit timer interrupt and put the same code into time_64.c. It's optimized out for CONFIG_X86_IO_APIC on 32bit and for 64bit because timer_ack is const 0 in both cases. Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/timer.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/x86/include/asm/timer.h') diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h index e854c7ab4169..65228ccc5f0d 100644 --- a/arch/x86/include/asm/timer.h +++ b/arch/x86/include/asm/timer.h @@ -9,11 +9,13 @@ unsigned long long native_sched_clock(void); unsigned long native_calibrate_tsc(void); +extern int recalibrate_cpu_khz(void); -#ifdef CONFIG_X86_32 +#if defined(CONFIG_X86_32) && defined(CONFIG_X86_IO_APIC) extern int timer_ack; +#else +# define timer_ack (0) #endif -extern int recalibrate_cpu_khz(void); extern int no_timer_check; -- cgit v1.2.3