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FROMGIT: crypto: chacha20-generic - don't unnecessarily use atomic walk

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chacha20-generic doesn't use SIMD instructions or otherwise disable
preemption, so passing atomic=true to skcipher_walk_virt() is
unnecessary.

Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

(cherry picked from commit 5e04542a0e0763294e9fced73a149c38c4e0cee5
 https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master)
Bug: 112008522
Test: As series, see Ic61c13b53facfd2173065be715a7ee5f3af8760b
Change-Id: I28a63d6f8aa59f60aed8d35107b3c546ca5152f7
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Eric Biggers
2018-11-16 17:26:19 -08:00
committed by Alistair Strachan
parent 2148650c6a
commit e9320e4375
1 changed files with 1 additions and 1 deletions
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2
crypto/chacha20_generic.c
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@@ -81,7 +81,7 @@ int crypto_chacha20_crypt(struct skcipher_request *req)
u32 state[16];
int err;
err = skcipher_walk_virt(&walk, req, true);
err = skcipher_walk_virt(&walk, req, false);
crypto_chacha20_init(state, ctx, walk.iv);