From: Eric Biggers <ebiggers@google.com>
Date: Sat, 15 Dec 2018 20:42:52 +0000 (-0800)
Subject: crypto: salsa20-generic - don't unnecessarily use atomic walk
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=101b53d91d57ebcc13cb5fbd437b1230457ba9e2;p=linux.git

crypto: salsa20-generic - don't unnecessarily use atomic walk

salsa20-generic doesn't use SIMD instructions or otherwise disable
preemption, so passing atomic=true to skcipher_walk_virt() is
unnecessary.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/salsa20_generic.c b/crypto/salsa20_generic.c
index 8c77bc78a09f2..00fce32ae17af 100644
--- a/crypto/salsa20_generic.c
+++ b/crypto/salsa20_generic.c
@@ -159,7 +159,7 @@ static int salsa20_crypt(struct skcipher_request *req)
 	u32 state[16];
 	int err;
 
-	err = skcipher_walk_virt(&walk, req, true);
+	err = skcipher_walk_virt(&walk, req, false);
 
 	salsa20_init(state, ctx, walk.iv);