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x86/alternative: Add a __alt_reloc_selftest() prototype

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The newly introduced selftest function causes a warning when -Wmissing-prototypes
is enabled:

  arch/x86/kernel/alternative.c:1461:32: error: no previous prototype for '__alt_reloc_selftest' [-Werror=missing-prototypes]

Since it's only used locally, add the prototype directly in front of it.

Fixes: 270a69c448 ("x86/alternative: Support relocations in alternatives")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230803082619.1369127-6-arnd@kernel.org
This commit is contained in:
Arnd Bergmann
2023-08-03 10:26:17 +02:00
committed by Borislav Petkov (AMD)
parent 6d33531bc0
commit 1a3e4b4da3
1 changed files with 1 additions and 0 deletions
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arch/x86/kernel/alternative.c
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@@ -1531,6 +1531,7 @@ static noinline void __init int3_selftest(void)
static __initdata int __alt_reloc_selftest_addr;
extern void __init __alt_reloc_selftest(void *arg);
__visible noinline void __init __alt_reloc_selftest(void *arg)
{
WARN_ON(arg != &__alt_reloc_selftest_addr);