From: zhong jiang <zhongjiang@xxxxxxxxxx> Subject: mm/kasan/common.c: fix compile error I hit the following compile error in arch/x86/ mm/kasan/common.c: In function kasan_populate_vmalloc: mm/kasan/common.c:797:2: error: implicit declaration of function flush_cache_vmap; did you mean flush_rcu_work? [-Werror=implicit-function-declaration] flush_cache_vmap(shadow_start, shadow_end); ^~~~~~~~~~~~~~~~ flush_rcu_work cc1: some warnings being treated as errors make[2]: *** [mm/kasan/common.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [mm/kasan] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [mm] Error 2 make: *** Waiting for unfinished jobs.... Link: http://lkml.kernel.org/r/1575363013-43761-1-git-send-email-zhongjiang@xxxxxxxxxx Fixes: 3c5c3cfb9ef4 ("kasan: support backing vmalloc space with real shadow memory") Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Reviewed-by: Daniel Axtens <dja@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx> Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/kasan/common.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/kasan/common.c~mm-kasan-fix-an-compile-error +++ a/mm/kasan/common.c @@ -36,6 +36,7 @@ #include <linux/bug.h> #include <linux/uaccess.h> +#include <asm/cacheflush.h> #include <asm/tlbflush.h> #include "kasan.h" _
