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arm64: hide unused is_valid_bugaddr()

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When generic BUG() support is disabled, this function has no declaration
and no callers but causes a W=1 warning:

arch/arm64/kernel/traps.c:950:5: error: no previous prototype for 'is_valid_bugaddr' [-Werror=missing-prototypes]

Add an #ifdef that matches the one around the declaration.

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/20230516160642.523862-10-arnd@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Arnd Bergmann 2023-05-16 18:06:36 +02:00 committed by Catalin Marinas
parent fbc0cd6f60
commit b925b4314c
1 changed files with 2 additions and 1 deletions
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3
arch/arm64/kernel/traps.c
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@ -947,7 +947,7 @@ void do_serror(struct pt_regs *regs, unsigned long esr)
}
/* GENERIC_BUG traps */
#ifdef CONFIG_GENERIC_BUG
int is_valid_bugaddr(unsigned long addr)
{
/*
@ -959,6 +959,7 @@ int is_valid_bugaddr(unsigned long addr)
*/
return 1;
}
#endif
static int bug_handler(struct pt_regs *regs, unsigned long esr)
{