From: Arnd Bergmann <arnd@xxxxxxxx> The generic __div64_32() definition is built on all architectures that don't provide this as a macro. m68k however neither defines nor requires __div64_32, so it should define an empty one to avoid the warning: lib/math/div64.c:31:32: error: no previous prototype for '__div64_32' [-Werror=missing-prototypes] Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- arch/m68k/include/asm/div64.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/m68k/include/asm/div64.h b/arch/m68k/include/asm/div64.h index 365f39f5e256f..df1f6b450cc51 100644 --- a/arch/m68k/include/asm/div64.h +++ b/arch/m68k/include/asm/div64.h @@ -31,6 +31,9 @@ __rem; \ }) +/* defining this stops the unused helper function from being built */ +#define __div64_32 __div64_32 + #endif /* CONFIG_CPU_HAS_NO_MULDIV64 */ #endif /* _M68K_DIV64_H */ -- 2.39.2
