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crypto: artpec6 - use memcpy_and_pad to simplify prepare_hash

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Use memcpy_and_pad() instead of memcpy() followed by memset() to
simplify artpec6_crypto_prepare_hash().

Also fix a duplicate word in a comment and remove a now-redundant one.

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
2026-03-09 22:11:21 +01:00
committed by Herbert Xu
parent 2ef3bac16f
commit 326118443e
1 changed files with 3 additions and 6 deletions
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9
drivers/crypto/axis/artpec6_crypto.c
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@@ -1323,7 +1323,7 @@ static int artpec6_crypto_prepare_hash(struct ahash_request *areq)
artpec6_crypto_init_dma_operation(common);
/* Upload HMAC key, must be first the first packet */
/* Upload HMAC key, it must be the first packet */
if (req_ctx->hash_flags & HASH_FLAG_HMAC) {
if (variant == ARTPEC6_CRYPTO) {
req_ctx->key_md = FIELD_PREP(A6_CRY_MD_OPER,
@@ -1333,11 +1333,8 @@ static int artpec6_crypto_prepare_hash(struct ahash_request *areq)
a7_regk_crypto_dlkey);
}
/* Copy and pad up the key */
memcpy(req_ctx->key_buffer, ctx->hmac_key,
ctx->hmac_key_length);
memset(req_ctx->key_buffer + ctx->hmac_key_length, 0,
blocksize - ctx->hmac_key_length);
memcpy_and_pad(req_ctx->key_buffer, blocksize, ctx->hmac_key,
ctx->hmac_key_length, 0);
error = artpec6_crypto_setup_out_descr(common,
(void *)&req_ctx->key_md,