diff options
| author | Eric Biggers <ebiggers@google.com> | 2025-05-05 12:10:45 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-12 13:32:53 +0800 |
| commit | aeaad5bfb18890cc73ca32d63f1f02feb5f3f651 (patch) | |
| tree | 7499b1f3662d439891eb3fef80d7f1254076ebf1 | |
| parent | bde393057bbc452731a521bafa7441932da5f564 (diff) | |
crypto: null - use memcpy_sglist()
Make null_skcipher_crypt() use memcpy_sglist() instead of the
skcipher_walk API, as this is simpler.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/crypto_null.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/crypto/crypto_null.c b/crypto/crypto_null.c index 48c71b925f375..34588f39fdfc6 100644 --- a/crypto/crypto_null.c +++ b/crypto/crypto_null.c @@ -15,6 +15,7 @@ #include <crypto/null.h> #include <crypto/internal/hash.h> #include <crypto/internal/skcipher.h> +#include <crypto/scatterwalk.h> #include <linux/init.h> #include <linux/module.h> #include <linux/string.h> @@ -60,19 +61,9 @@ static void null_crypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) static int null_skcipher_crypt(struct skcipher_request *req) { - struct skcipher_walk walk; - int err; - - err = skcipher_walk_virt(&walk, req, false); - - while (walk.nbytes) { - if (walk.src.virt.addr != walk.dst.virt.addr) - memcpy(walk.dst.virt.addr, walk.src.virt.addr, - walk.nbytes); - err = skcipher_walk_done(&walk, 0); - } - - return err; + if (req->src != req->dst) + memcpy_sglist(req->dst, req->src, req->cryptlen); + return 0; } static struct shash_alg digest_null = { |