[PATCH v2 05/29] crypto: skcipher - fold skcipher_walk_skcipher() into skcipher_walk_virt()
From: Eric Biggers <ebiggers@kernel.org>
Date: 2024-12-30 00:16:00
Also in:
linux-crypto, lkml
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
From: Eric Biggers <redacted> Fold skcipher_walk_skcipher() into skcipher_walk_virt() which is its only remaining caller. No change in behavior. Signed-off-by: Eric Biggers <redacted> --- crypto/skcipher.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index 98606def1bf9..17f4bc79ca8b 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c@@ -304,23 +304,26 @@ static int skcipher_walk_first(struct skcipher_walk *walk) walk->page = NULL; return skcipher_walk_next(walk); } -static int skcipher_walk_skcipher(struct skcipher_walk *walk, - struct skcipher_request *req) +int skcipher_walk_virt(struct skcipher_walk *walk, + struct skcipher_request *req, bool atomic) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + int err = 0; + + might_sleep_if(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP); walk->total = req->cryptlen; walk->nbytes = 0; walk->iv = req->iv; walk->oiv = req->iv; if (unlikely(!walk->total)) - return 0; + goto out; scatterwalk_start(&walk->in, req->src); scatterwalk_start(&walk->out, req->dst); walk->flags &= ~SKCIPHER_WALK_SLEEP;
@@ -334,22 +337,12 @@ static int skcipher_walk_skcipher(struct skcipher_walk *walk, if (alg->co.base.cra_type != &crypto_skcipher_type) walk->stride = alg->co.chunksize; else walk->stride = alg->walksize; - return skcipher_walk_first(walk); -} - -int skcipher_walk_virt(struct skcipher_walk *walk, - struct skcipher_request *req, bool atomic) -{ - int err; - - might_sleep_if(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP); - - err = skcipher_walk_skcipher(walk, req); - + err = skcipher_walk_first(walk); +out: walk->flags &= atomic ? ~SKCIPHER_WALK_SLEEP : ~0; return err; } EXPORT_SYMBOL_GPL(skcipher_walk_virt);
--
2.47.1