Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Mathieu Malaterre <> | Subject | [PATCH] powerpc/ptrace: Add prototype for function pt_regs_check | Date | Sat, 8 Dec 2018 16:46:23 +0100 |
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`pt_regs_check` is a dummy function, its purpose is to break the build if struct pt_regs and struct user_pt_regs don't match.
This function has no functionnal purpose, and will get eliminated at link time or after init depending on CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
This commit adds a prototype to fix warning at W=1:
arch/powerpc/kernel/ptrace.c:3339:13: error: no previous prototype for ‘pt_regs_check’ [-Werror=missing-prototypes]
Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Mathieu Malaterre <malat@debian.org> --- arch/powerpc/kernel/ptrace.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index a398999d0770..341c0060b4c8 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -3338,6 +3338,10 @@ void do_syscall_trace_leave(struct pt_regs *regs) user_enter(); } +void __init pt_regs_check(void); +/* dummy function, its purpose is to break the build if struct pt_regs and + * struct user_pt_regs don't match. + */ void __init pt_regs_check(void) { BUILD_BUG_ON(offsetof(struct pt_regs, gpr) != -- 2.19.2
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