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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>
This commit is contained in:
David Sterba 2019-11-12 11:20:28 +01:00 committed by Herbert Xu
parent d063d6327e
commit a2e4bdce0f
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 } { 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) static void blake2b_increment_counter(struct blake2b_state *S, const u64 inc)
{ {
S->t[0] += inc; S->t[0] += inc;
@ -231,7 +226,8 @@ static int blake2b_final(struct shash_desc *desc, u8 *out)
size_t i; size_t i;
blake2b_increment_counter(state, state->buflen); blake2b_increment_counter(state, state->buflen);
blake2b_set_lastblock(state); /* Set last block */
state->f[0] = (u64)-1;
/* Padding */ /* Padding */
memset(state->buf + state->buflen, 0, BLAKE2B_BLOCKBYTES - state->buflen); memset(state->buf + state->buflen, 0, BLAKE2B_BLOCKBYTES - state->buflen);
blake2b_compress(state, state->buf); blake2b_compress(state, state->buf);