crypto: wp512 - disable kmsan checks in wp512_process_buffer()
authorArnd Bergmann <arnd@arndb.de>
Thu, 15 Dec 2022 16:29:38 +0000 (17:29 +0100)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 30 Dec 2022 14:56:27 +0000 (22:56 +0800)
The memory sanitizer causes excessive register spills in this function:

crypto/wp512.c:782:13: error: stack frame size (2104) exceeds limit (2048) in 'wp512_process_buffer' [-Werror,-Wframe-larger-than]

Assume that this one is safe, and mark it as needing no checks to
get the stack usage back down to the normal level.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/wp512.c

index 5e820af..07994e5 100644 (file)
@@ -779,7 +779,7 @@ static const u64 rc[WHIRLPOOL_ROUNDS] = {
  * The core Whirlpool transform.
  */
 
-static void wp512_process_buffer(struct wp512_ctx *wctx) {
+static __no_kmsan_checks void wp512_process_buffer(struct wp512_ctx *wctx) {
        int i, r;
        u64 K[8];        /* the round key */
        u64 block[8];    /* mu(buffer) */