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>
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@ -342,6 +342,12 @@ static void mv_process_hash_current(int first_block)
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op.config |= CFG_LAST_FRAG;
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else
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op.config |= CFG_MID_FRAG;
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writel(req_ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A);
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writel(req_ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B);
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writel(req_ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C);
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writel(req_ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D);
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writel(req_ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E);
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}
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memcpy(cpg->sram + SRAM_CONFIG, &op, sizeof(struct sec_accel_config));
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@ -525,14 +531,6 @@ static void mv_start_new_hash_req(struct ahash_request *req)
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p->crypt_len = ctx->extra_bytes;
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}
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if (unlikely(!ctx->first_hash)) {
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writel(ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A);
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writel(ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B);
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writel(ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C);
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writel(ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D);
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writel(ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E);
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}
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ctx->extra_bytes = hw_bytes % SHA1_BLOCK_SIZE;
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if (ctx->extra_bytes != 0
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&& (!ctx->last_chunk || ctx->count > MAX_HW_HASH_SIZE))
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