Commit 73c203fe authored by Eric Biggers's avatar Eric Biggers
Browse files

crypto: adiantum - Use memcpy_{to,from}_sglist() 



Call the newer, easier-to-read functions memcpy_to_sglist() and
memcpy_from_sglist() directly instead of calling
scatterwalk_map_and_copy().  No change in behavior.

Acked-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Link: https://lore.kernel.org/r/20251211011846.8179-9-ebiggers@kernel.org


Signed-off-by: default avatarEric Biggers <ebiggers@kernel.org>
parent cd912b34

crypto/adiantum.c

+4 −4
Original line number Diff line number Diff line
@@ -427,8 +427,8 @@ static int adiantum_finish(struct skcipher_request *req) 
		/* Slow path that works for any destination scatterlist */

		adiantum_hash_message(req, dst, &digest);

		le128_sub(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);

		scatterwalk_map_and_copy(&rctx->rbuf.bignum, dst,

					 bulk_len, sizeof(le128), 1);

		memcpy_to_sglist(dst, bulk_len, &rctx->rbuf.bignum,

				 sizeof(le128));

	}

	return 0;

}
@@ -477,8 +477,8 @@ static int adiantum_crypt(struct skcipher_request *req, bool enc) 
	} else {

		/* Slow path that works for any source scatterlist */

		adiantum_hash_message(req, src, &digest);

		scatterwalk_map_and_copy(&rctx->rbuf.bignum, src,

					 bulk_len, sizeof(le128), 0);

		memcpy_from_sglist(&rctx->rbuf.bignum, src, bulk_len,

				   sizeof(le128));

	}

	le128_add(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &rctx->header_hash);

	le128_add(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);