When building with W=1:
arch/m68k/kernel/signal.c:756:18: warning: no previous prototype for ‘do_sigreturn’ [-Wmissing-prototypes]
756 | asmlinkage void *do_sigreturn(struct pt_regs *regs, struct switch_stack *sw)
| ^~~~~~~~~~~~
arch/m68k/kernel/signal.c:783:18: warning: no previous prototype for ‘do_rt_sigreturn’ [-Wmissing-prototypes]
783 | asmlinkage void *do_rt_sigreturn(struct pt_regs *regs, struct switch_stack *sw)
| ^~~~~~~~~~~~~~~
arch/m68k/kernel/signal.c:1112:17: warning: no previous prototype for ‘do_notify_resume’ [-Wmissing-prototypes]
1112 | asmlinkage void do_notify_resume(struct pt_regs *regs)
| ^~~~~~~~~~~~~~~~
Fix this by introducing a new header file "signal.h" for holding the
prototypes of functions implemented in arch/m68k/kernel/signal.c.
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
---
v2:
- Add Acked-by.
---
arch/m68k/kernel/signal.c | 2 ++
arch/m68k/kernel/signal.h | 7 +++++++
2 files changed, 9 insertions(+)
create mode 100644 arch/m68k/kernel/signal.h
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index 459c5ff69fcfa126..e628b859ef21beaf 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -51,6 +51,8 @@
#include <asm/ucontext.h>
#include <asm/cacheflush.h>
+#include "signal.h"
+
#ifdef CONFIG_MMU
/*
diff --git a/arch/m68k/kernel/signal.h b/arch/m68k/kernel/signal.h
new file mode 100644
index 0000000000000000..498d84f828202541
--- /dev/null
+++ b/arch/m68k/kernel/signal.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <linux/linkage.h>
+
+asmlinkage void do_notify_resume(struct pt_regs *regs);
+asmlinkage void *do_sigreturn(struct pt_regs *regs, struct switch_stack *sw);
+asmlinkage void *do_rt_sigreturn(struct pt_regs *regs, struct switch_stack *sw);
--
2.34.1
