kernel/bounds.c is recompiled on every build, and shows the following warning when compiling with W=1: CC kernel/bounds.s linux/kernel/bounds.c:16:6: warning: no previous prototype for ‘foo’ [-Wmissing-prototypes] void foo(void) ^~~ Provide a prototype to satisfy the compiler. Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx --- I compile all of my incremental builds with W=1, which allows me to know instantly if I add a new compiler warning in code I generate. This warning always comes up and seems trivial to clean up. --- kernel/bounds.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/bounds.c b/kernel/bounds.c index c373e887c066..60136d937800 100644 --- a/kernel/bounds.c +++ b/kernel/bounds.c @@ -13,6 +13,8 @@ #include <linux/log2.h> #include <linux/spinlock_types.h> +void foo(void); + void foo(void) { /* The enum constants to put into include/generated/bounds.h */ -- 2.17.1