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UPSTREAM: crypto: blake2b - open code set last block helper

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The helper is trival and called once, inlining makes things simpler.
There's a comment to tie it back to the idea behind the code.

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

(cherry picked from commit a2e4bdce0f6e69c6cf9e460c4fe158bcc0db351f)
Bug: 178411248
Change-Id: Iba1276dfcdb29240206f66bf98902d0e587a590f
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
David Sterba
2019-11-12 11:20:28 +01:00
committed by Alistair Delva
parent 755d5a0a12
commit 2ddda50514
1 changed files with 2 additions and 6 deletions
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8
crypto/blake2b_generic.c
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@@ -65,11 +65,6 @@ static const u8 blake2b_sigma[12][16] = {
{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }
};
static void blake2b_set_lastblock(struct blake2b_state *S)
{
S->f[0] = (u64)-1;
}
static void blake2b_increment_counter(struct blake2b_state *S, const u64 inc)
{
S->t[0] += inc;
@@ -231,7 +226,8 @@ static int blake2b_final(struct shash_desc *desc, u8 *out)
size_t i;
blake2b_increment_counter(state, state->buflen);
blake2b_set_lastblock(state);
/* Set last block */
state->f[0] = (u64)-1;
/* Padding */
memset(state->buf + state->buflen, 0, BLAKE2B_BLOCKBYTES - state->buflen);
blake2b_compress(state, state->buf);