Since function `MMU_setup` is not meant to be exported, change the signature to `static`. Fix warning (treated as error with W=1):
CC kernel/sys.o arch/powerpc/mm/init_32.c:102:13: error: no previous prototype for ‘MMU_setup’ [-Werror=missing-prototypes] void __init MMU_setup(void) ^~~~~~~~~ cc1: all warnings being treated as errors Signed-off-by: Mathieu Malaterre <ma...@debian.org> --- arch/powerpc/mm/init_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index 6419b33ca309..a2bf6965d04f 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -99,7 +99,7 @@ unsigned long __max_low_memory = MAX_LOW_MEM; /* * Check for command-line options that affect what MMU_init will do. */ -void __init MMU_setup(void) +static void __init MMU_setup(void) { /* Check for nobats option (used in mapin_ram). */ if (strstr(boot_command_line, "nobats")) { -- 2.11.0