Commit ce331356 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: hash - Use nth_page instead of doing it by hand 



Use nth_page instead of adding n to the page pointer.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent e9ed7aff

crypto/ahash.c

+2 −2
Original line number Diff line number Diff line
@@ -80,7 +80,7 @@ static int hash_walk_new_entry(struct crypto_hash_walk *walk) 


	sg = walk->sg;

	walk->offset = sg->offset;

	walk->pg = sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);

	walk->pg = nth_page(sg_page(walk->sg), (walk->offset >> PAGE_SHIFT));

	walk->offset = offset_in_page(walk->offset);

	walk->entrylen = sg->length;
@@ -221,7 +221,7 @@ int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc) 
	if (!IS_ENABLED(CONFIG_HIGHMEM))

		return crypto_shash_digest(desc, data, nbytes, req->result);



	page += offset >> PAGE_SHIFT;

	page = nth_page(page, offset >> PAGE_SHIFT);

	offset = offset_in_page(offset);



	if (nbytes > (unsigned int)PAGE_SIZE - offset)