diff options
| author | Dou Liyang <douly.fnst@cn.fujitsu.com> | 2017-07-14 05:34:07 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-25 15:22:44 +0200 |
| commit | af5768507c051ceb9fe12bee59202bd83115c073 (patch) | |
| tree | 8f6a1ce7cbdc8e1ddbf139040887557bb70fbb60 | |
| parent | x86/timers: Move the simple udelay calibration to tsc.h (diff) | |
| download | linux-af5768507c051ceb9fe12bee59202bd83115c073.tar.xz linux-af5768507c051ceb9fe12bee59202bd83115c073.zip | |
x86/timers: Make recalibrate_cpu_khz() void
recalibrate_cpu_khz() is called from powernow K7 and Pentium 4/Xeon
CPU freq driver. It recalibrates cpu frequency in case of SMP = n
and doesn't need to return anything.
Mark it void, also remove the #else branch.
Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1500003247-17368-2-git-send-email-douly.fnst@cn.fujitsu.com
| -rw-r--r-- | arch/x86/include/asm/timer.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/tsc.c | 8 |
2 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h index 2016962103df..e90edbee313a 100644 --- a/arch/x86/include/asm/timer.h +++ b/arch/x86/include/asm/timer.h @@ -8,7 +8,7 @@ #define TICK_SIZE (tick_nsec / 1000) unsigned long long native_sched_clock(void); -extern int recalibrate_cpu_khz(void); +extern void recalibrate_cpu_khz(void); extern int no_timer_check; diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index c173dcef1f46..896dbe31b407 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -812,13 +812,13 @@ unsigned long native_calibrate_cpu(void) return tsc_pit_min; } -int recalibrate_cpu_khz(void) +void recalibrate_cpu_khz(void) { #ifndef CONFIG_SMP unsigned long cpu_khz_old = cpu_khz; if (!boot_cpu_has(X86_FEATURE_TSC)) - return -ENODEV; + return; cpu_khz = x86_platform.calibrate_cpu(); tsc_khz = x86_platform.calibrate_tsc(); @@ -828,10 +828,6 @@ int recalibrate_cpu_khz(void) cpu_khz = tsc_khz; cpu_data(0).loops_per_jiffy = cpufreq_scale(cpu_data(0).loops_per_jiffy, cpu_khz_old, cpu_khz); - - return 0; -#else - return -ENODEV; #endif } |