From cb25dbb60542c56a68089b57f9edd994a6b5bbf4 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 19 Feb 2025 10:23:28 -0800 Subject: [PATCH] crypto: skcipher - use scatterwalk_start_at_pos() In skcipher_walk_aead_common(), use scatterwalk_start_at_pos() instead of a sequence of scatterwalk_start(), scatterwalk_copychunks(..., 2), and scatterwalk_done(). This is simpler and faster. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- crypto/skcipher.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/crypto/skcipher.c b/crypto/skcipher.c index cdf0f11c7eaa..59e33f63f845 100644 --- a/crypto/skcipher.c +++ b/crypto/skcipher.c @@ -363,14 +363,8 @@ static int skcipher_walk_aead_common(struct skcipher_walk *walk, if (unlikely(!walk->total)) return 0; - scatterwalk_start(&walk->in, req->src); - scatterwalk_start(&walk->out, req->dst); - - scatterwalk_copychunks(NULL, &walk->in, req->assoclen, 2); - scatterwalk_copychunks(NULL, &walk->out, req->assoclen, 2); - - scatterwalk_done(&walk->in, 0, walk->total); - scatterwalk_done(&walk->out, 0, walk->total); + scatterwalk_start_at_pos(&walk->in, req->src, req->assoclen); + scatterwalk_start_at_pos(&walk->out, req->dst, req->assoclen); /* * Accessing 'alg' directly generates better code than using the -- 2.50.1