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crypto: bcm - use memcpy_and_pad in ahash_hmac_setkey

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Use memcpy_and_pad() instead of memcpy() followed by memset() to
simplify ahash_hmac_setkey().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Thorsten Blum
2026-07-21 01:22:50 +02:00
committed by Herbert Xu
parent 8b1fea9dda
commit 37b70fa01b
1 changed files with 1 additions and 3 deletions
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4
drivers/crypto/bcm/cipher.c
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@@ -2387,9 +2387,7 @@ static int ahash_hmac_setkey(struct crypto_ahash *ahash, const u8 *key,
* outer hashing in software.
*/
if (iproc_priv.spu.spu_type == SPU_TYPE_SPUM) {
memcpy(ctx->ipad, ctx->authkey, ctx->authkeylen);
memset(ctx->ipad + ctx->authkeylen, 0,
blocksize - ctx->authkeylen);
memcpy_and_pad(ctx->ipad, blocksize, ctx->authkey, ctx->authkeylen, 0);
ctx->authkeylen = 0;
unsafe_memcpy(ctx->opad, ctx->ipad, blocksize,
"fortified memcpy causes -Wrestrict warning");