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linux/arch/x86/include/asm/vdso/processor.h
Borislav Petkov (AMD) dac0da428f x86/vdso: Fix -Wmissing-prototypes warnings
Fix those:

  In file included from arch/x86/entry/vdso/vdso32/vclock_gettime.c:4:
arch/x86/entry/vdso/vdso32/../vclock_gettime.c:70:5: warning: no previous prototype for ‘__vdso_clock_gettime64’ [-Wmissing-prototypes]
   70 | int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
      |

In file included from arch/x86/entry/vdso/vdso32/vgetcpu.c:3:
arch/x86/entry/vdso/vdso32/../vgetcpu.c:13:1: warning: no previous prototype for ‘__vdso_getcpu’ [-Wmissing-prototypes]
   13 | __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
      | ^~~~~~~~~~~~~

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/202302070742.iYcnoJwk-lkp@intel.com
2023-02-07 18:23:17 +01:00

27 lines
559 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2020 ARM Ltd.
*/
#ifndef __ASM_VDSO_PROCESSOR_H
#define __ASM_VDSO_PROCESSOR_H
#ifndef __ASSEMBLY__
/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
static __always_inline void rep_nop(void)
{
asm volatile("rep; nop" ::: "memory");
}
static __always_inline void cpu_relax(void)
{
rep_nop();
}
struct getcpu_cache;
notrace long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused);
#endif /* __ASSEMBLY__ */
#endif /* __ASM_VDSO_PROCESSOR_H */