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arm64: move cpu_suspend_set_dbg_restorer() prototype to header 

The cpu_suspend_set_dbg_restorer() function is called by the hw_breakpoint
code but defined in another file. Since the declaration is in the
same file as the caller, the compiler warns about the definition
without a prior prototype:

arch/arm64/kernel/suspend.c:35:13: error: no previous prototype for 'cpu_suspend_set_dbg_restorer' [-Werror=missing-prototypes]

Move it into the corresponding header instead to avoid the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20230516160642.523862-5-arnd@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Arnd Bergmann 2023-05-16 18:06:31 +02:00 committed by Catalin Marinas
parent 6ac19f9651
commit ec3a3db710
2 changed files with 8 additions and 8 deletions
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8
arch/arm64/include/asm/hw_breakpoint.h
View File

@ -154,4 +154,12 @@ static inline int get_num_wrps(void)
ID_AA64DFR0_EL1_WRPs_SHIFT);
}
#ifdef CONFIG_CPU_PM
extern void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int));
#else
static inline void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int))
{
}
#endif
#endif /* __ASM_BREAKPOINT_H */

8
arch/arm64/kernel/hw_breakpoint.c
View File

@ -973,14 +973,6 @@ static int hw_breakpoint_reset(unsigned int cpu)
return 0;
}
#ifdef CONFIG_CPU_PM
extern void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int));
#else
static inline void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int))
{
}
#endif
/*
* One-time initialisation.
*/