Commit-ID: af5768507c051ceb9fe12bee59202bd83115c073
Gitweb: http://git.kernel.org/tip/af5768507c051ceb9fe12bee59202bd83115c073
Author: Dou Liyang <douly.fnst@xxxxxxxxxxxxxx>
AuthorDate: Fri, 14 Jul 2017 11:34:07 +0800
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Mon, 25 Sep 2017 15:22:44 +0200
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@xxxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/1500003247-17368-2-git-send-email-douly.fnst@xxxxxxxxxxxxxx
---
arch/x86/include/asm/timer.h | 2 +-
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 2016962..e90edbe 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 c173dce..896dbe3 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
}
--
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