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>
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index c1925c2..a2d9e39 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -342,6 +342,12 @@
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 @@
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))
