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init: Mark [arch_call_]rest_init() __noreturn

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In preparation for improving objtool's handling of weak noreturn
functions, mark start_kernel(), arch_call_rest_init(), and rest_init()
__noreturn.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/7194ed8a989a85b98d92e62df660f4a90435a723.1681342859.git.jpoimboe@kernel.org
This commit is contained in:
Josh Poimboeuf 2023-04-12 16:49:31 -07:00 • committed by Peter Zijlstra
parent 5743654f5e
commit 9ea7e6b62c
4 changed files with 7 additions and 5 deletions
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4
include/linux/start_kernel.h
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@ -9,7 +9,7 @@
up something else. */
extern asmlinkage void __init start_kernel(void);
extern void __init arch_call_rest_init(void);
extern void __ref rest_init(void);
extern void __init __noreturn arch_call_rest_init(void);
extern void __ref __noreturn rest_init(void);
#endif /* _LINUX_START_KERNEL_H */