When building with W=1: arch/m68k/kernel/traps.c:968:6: warning: no previous prototype for ‘bad_super_trap’ [-Wmissing-prototypes] 968 | void bad_super_trap (struct frame *fp) | ^~~~~~~~~~~~~~ Fix this by making bad_super_trap() static. There was never a user outside arch/m68k/kernel/traps.c. Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx> --- v2: - Add Acked-by. --- arch/m68k/kernel/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index a700807c9b6d9999..b3fee39f8f518c6e 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -965,7 +965,7 @@ void show_stack(struct task_struct *task, unsigned long *stack, * real 68k parts, but it won't hurt either. */ -void bad_super_trap (struct frame *fp) +static void bad_super_trap(struct frame *fp) { int vector = (fp->ptregs.vector >> 2) & 0xff; -- 2.34.1