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| author | Thomas Gleixner <tglx@linutronix.de> | 2016-11-29 20:28:31 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-30 09:44:52 +0100 |
| commit | b836554386cc77f31ab43a8492a2587e0c51d51e (patch) | |
| tree | f0b48454f0758cf45c943ec74054566a35e0f08b | |
| parent | x86/tsc: Try to adjust TSC if sync test fails (diff) | |
| download | linux-b836554386cc77f31ab43a8492a2587e0c51d51e.tar.xz linux-b836554386cc77f31ab43a8492a2587e0c51d51e.zip | |
x86/tsc: Fix broken CONFIG_X86_TSC=n build
Add the missing return statement to the inline stub
tsc_store_and_check_tsc_adjust() and add the other stubs to make a
SMP=y,TSC=n build happy.
While at it, remove the unused variable from the UP variant of
tsc_store_and_check_tsc_adjust().
Fixes: commit ba75fb646931 ("x86/tsc: Sync test only for the first cpu in a package")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/x86/include/asm/tsc.h | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/tsc_sync.c | 2 |
2 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h index 04721d54d8d9..c054eaa7dc94 100644 --- a/arch/x86/include/asm/tsc.h +++ b/arch/x86/include/asm/tsc.h @@ -45,15 +45,16 @@ extern int tsc_clocksource_reliable; * Boot-time check whether the TSCs are synchronized across * all CPUs/cores: */ -extern void check_tsc_sync_source(int cpu); -extern void check_tsc_sync_target(void); - #ifdef CONFIG_X86_TSC extern bool tsc_store_and_check_tsc_adjust(void); extern void tsc_verify_tsc_adjust(void); +extern void check_tsc_sync_source(int cpu); +extern void check_tsc_sync_target(void); #else -static inline bool tsc_store_and_check_tsc_adjust(void) { } +static inline bool tsc_store_and_check_tsc_adjust(void) { return false; } static inline void tsc_verify_tsc_adjust(void) { } +static inline void check_tsc_sync_source(int cpu) { } +static inline void check_tsc_sync_target(void) { } #endif extern int notsc_setup(char *); diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c index d7f48a640ff5..8fde44f8cfec 100644 --- a/arch/x86/kernel/tsc_sync.c +++ b/arch/x86/kernel/tsc_sync.c @@ -61,7 +61,7 @@ void tsc_verify_tsc_adjust(void) #ifndef CONFIG_SMP bool __init tsc_store_and_check_tsc_adjust(void) { - struct tsc_adjust *ref, *cur = this_cpu_ptr(&tsc_adjust); + struct tsc_adjust *cur = this_cpu_ptr(&tsc_adjust); s64 bootval; if (!boot_cpu_has(X86_FEATURE_TSC_ADJUST)) |