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| author | Phil Sutter <phil.sutter@viprinet.com> | 2011-05-05 15:29:04 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-05-11 15:06:20 +1000 |
| commit | 8652348754a1f538daa1eab248e5c9c4c3600204 (patch) | |
| tree | 9812a8205990fe5ec13f8d84d7db7fd81589e53d /drivers/crypto/mv_cesa.c | |
| parent | cc8d35057ce7ae2f88cc65be0f839316c4641332 (diff) | |
| download | linux-8652348754a1f538daa1eab248e5c9c4c3600204.tar.gz linux-8652348754a1f538daa1eab248e5c9c4c3600204.tar.bz2 linux-8652348754a1f538daa1eab248e5c9c4c3600204.zip | |
crypto: mv_cesa - move digest state initialisation to a better place
On one hand, the digest state registers need to be set only when
actually using the crypto engine. On the other hand, there is a check
for ctx->first_hash in mv_process_hash_current() already, so use that.
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/mv_cesa.c')
| -rw-r--r-- | drivers/crypto/mv_cesa.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index c1925c2a88b0..a2d9e394f80f 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -342,6 +342,12 @@ static void mv_process_hash_current(int first_block) op.config |= CFG_LAST_FRAG; else op.config |= CFG_MID_FRAG; + + writel(req_ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A); + writel(req_ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B); + writel(req_ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C); + writel(req_ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D); + writel(req_ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E); } memcpy(cpg->sram + SRAM_CONFIG, &op, sizeof(struct sec_accel_config)); @@ -525,14 +531,6 @@ static void mv_start_new_hash_req(struct ahash_request *req) p->crypt_len = ctx->extra_bytes; } - if (unlikely(!ctx->first_hash)) { - writel(ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A); - writel(ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B); - writel(ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C); - writel(ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D); - writel(ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E); - } - ctx->extra_bytes = hw_bytes % SHA1_BLOCK_SIZE; if (ctx->extra_bytes != 0 && (!ctx->last_chunk || ctx->count > MAX_HW_HASH_SIZE)) |