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Commit 7759995c authored by Phil Sutter's avatar Phil Sutter Committed by Herbert Xu
Browse files

crypto: mv_cesa - copy remaining bytes to SRAM only when needed 



Signed-off-by: default avatarPhil Sutter <phil.sutter@viprinet.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 86523487

drivers/crypto/mv_cesa.c

+6 −6
Original line number Diff line number Diff line
@@ -525,12 +525,6 @@ static void mv_start_new_hash_req(struct ahash_request *req) 
	hw_bytes = req->nbytes + ctx->extra_bytes;

	old_extra_bytes = ctx->extra_bytes;



	if (unlikely(ctx->extra_bytes)) {

		memcpy(cpg->sram + SRAM_DATA_IN_START, ctx->buffer,

		       ctx->extra_bytes);

		p->crypt_len = ctx->extra_bytes;

	}



	ctx->extra_bytes = hw_bytes % SHA1_BLOCK_SIZE;

	if (ctx->extra_bytes != 0

	    && (!ctx->last_chunk || ctx->count > MAX_HW_HASH_SIZE))
@@ -546,6 +540,12 @@ static void mv_start_new_hash_req(struct ahash_request *req) 
		p->complete = mv_hash_algo_completion;

		p->process = mv_process_hash_current;



		if (unlikely(old_extra_bytes)) {

			memcpy(cpg->sram + SRAM_DATA_IN_START, ctx->buffer,

			       old_extra_bytes);

			p->crypt_len = old_extra_bytes;

		}



		mv_process_hash_current(1);

	} else {

		copy_src_to_buf(p, ctx->buffer + old_extra_bytes,