summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/ptrace.c
diff options
context:
space:
mode:
authorMathieu Malaterre <malat@debian.org>2018-12-08 16:46:23 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2019-10-30 22:31:40 +1100
commit5c74f79958682fccd82a6029c53859d1dab3b239 (patch)
treef0f271ec8182a983adab163557c358fd9fdc4b67 /arch/powerpc/kernel/ptrace.c
parentc790c3d2b0ec5979d83451d0688d1cd07e23d8ba (diff)
downloadlinux-5c74f79958682fccd82a6029c53859d1dab3b239.tar.bz2
powerpc/ptrace: Add prototype for function pt_regs_check
`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> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20181208154624.6504-1-malat@debian.org
Diffstat (limited to 'arch/powerpc/kernel/ptrace.c')
-rw-r--r--arch/powerpc/kernel/ptrace.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 8c92febf5f44..b06d8dffd32a 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -3361,6 +3361,12 @@ 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) !=