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x86/lib: Drop the unused return value from wbinvd_on_all_cpus()

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Drop wbinvd_on_all_cpus()'s return value; both the "real" version and the
stub always return '0', and none of the callers check the return.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250522233733.3176144-3-seanjc@google.com
This commit is contained in:
Sean Christopherson 2025-05-22 16:37:26 -07:00 committed by Borislav Petkov (AMD)
parent 1d738dbb25
commit e638081751
2 changed files with 3 additions and 5 deletions
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5
arch/x86/include/asm/smp.h
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@ -112,7 +112,7 @@ void __noreturn hlt_play_dead(void);
void native_play_dead(void);
void play_dead_common(void);
void wbinvd_on_cpu(int cpu);
int wbinvd_on_all_cpus(void);
void wbinvd_on_all_cpus(void);
void smp_kick_mwait_play_dead(void);
void __noreturn mwait_play_dead(unsigned int eax_hint);
@ -148,10 +148,9 @@ static inline struct cpumask *cpu_l2c_shared_mask(int cpu)
#else /* !CONFIG_SMP */
#define wbinvd_on_cpu(cpu) wbinvd()
static inline int wbinvd_on_all_cpus(void)
static inline void wbinvd_on_all_cpus(void)
{
wbinvd();
return 0;
}
static inline struct cpumask *cpu_llc_shared_mask(int cpu)

3
arch/x86/lib/cache-smp.c
View File

@ -14,9 +14,8 @@ void wbinvd_on_cpu(int cpu)
}
EXPORT_SYMBOL(wbinvd_on_cpu);
int wbinvd_on_all_cpus(void)
void wbinvd_on_all_cpus(void)
{
on_each_cpu(__wbinvd, NULL, 1);
return 0;
}
EXPORT_SYMBOL(wbinvd_on_all_cpus);