Commit 36ca239b authored by Mandeep Singh Baines's avatar Mandeep Singh Baines Committed by Herbert Xu
Browse files

crypto: sha1_generic - use SHA1_BLOCK_SIZE 



Modify sha1_update to use SHA1_BLOCK_SIZE.

Signed-off-by: default avatarMandeep Singh Baines <msb@chromium.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 52527cf3

crypto/sha1_generic.c

+6 −5
Original line number Diff line number Diff line
@@ -43,25 +43,26 @@ static int sha1_update(struct shash_desc *desc, const u8 *data, 
	unsigned int partial, done;

	const u8 *src;



	partial = sctx->count & 0x3f;

	partial = sctx->count % SHA1_BLOCK_SIZE;

	sctx->count += len;

	done = 0;

	src = data;



	if ((partial + len) > 63) {

	if ((partial + len) >= SHA1_BLOCK_SIZE) {

		u32 temp[SHA_WORKSPACE_WORDS];



		if (partial) {

			done = -partial;

			memcpy(sctx->buffer + partial, data, done + 64);

			memcpy(sctx->buffer + partial, data,

			       done + SHA1_BLOCK_SIZE);

			src = sctx->buffer;

		}



		do {

			sha_transform(sctx->state, src, temp);

			done += 64;

			done += SHA1_BLOCK_SIZE;

			src = data + done;

		} while (done + 63 < len);

		} while (done + SHA1_BLOCK_SIZE <= len);



		memset(temp, 0, sizeof(temp));

		partial = 0;