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crypto: x86/poly1305 - emit does base conversion itself 

The emit code does optional base conversion itself in assembly, so we
don't need to do that here. Also, neither one of these functions uses
simd instructions, so checking for that doesn't make sense either.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jason A. Donenfeld 2020-01-17 11:42:22 +01:00 committed by Herbert Xu
parent 2203d3f797
commit f9e7fe32a7
1 changed files with 2 additions and 6 deletions
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8
arch/x86/crypto/poly1305_glue.c
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@ -123,13 +123,9 @@ static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len,
static void poly1305_simd_emit(void *ctx, u8 mac[POLY1305_DIGEST_SIZE], static void poly1305_simd_emit(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
const u32 nonce[4]) const u32 nonce[4])
{ {
struct poly1305_arch_internal *state = ctx; if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx))
if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx) ||
!state->is_base2_26 || !crypto_simd_usable()) {
convert_to_base2_64(ctx);
poly1305_emit_x86_64(ctx, mac, nonce); poly1305_emit_x86_64(ctx, mac, nonce);
} else else
poly1305_emit_avx(ctx, mac, nonce); poly1305_emit_avx(ctx, mac, nonce);
} }