Commit 1f6d79d7 authored by LABBE Corentin's avatar LABBE Corentin Committed by Herbert Xu
Browse files

crypto: bfin_crc - replace sg_count by sg_nents 



The sg_count function in bfin_crc.c is the same function as sg_nents.
Remove the duplicate code and use sg_nents() instead.

Signed-off-by: default avatarLABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent be6ec98d

drivers/crypto/bfin_crc.c

+3 −22
Original line number Diff line number Diff line
@@ -96,26 +96,6 @@ struct bfin_crypto_crc_ctx { 
	u32			key;

};





/*

 * derive number of elements in scatterlist

 */

static int sg_count(struct scatterlist *sg_list)

{

	struct scatterlist *sg = sg_list;

	int sg_nents = 1;



	if (sg_list == NULL)

		return 0;



	while (!sg_is_last(sg)) {

		sg_nents++;

		sg = sg_next(sg);

	}



	return sg_nents;

}



/*

 * get element in scatter list by given index

 */
@@ -160,7 +140,7 @@ static int bfin_crypto_crc_init(struct ahash_request *req) 
	}

	spin_unlock_bh(&crc_list.lock);



	if (sg_count(req->src) > CRC_MAX_DMA_DESC) {

	if (sg_nents(req->src) > CRC_MAX_DMA_DESC) {

		dev_dbg(ctx->crc->dev, "init: requested sg list is too big > %d\n",

			CRC_MAX_DMA_DESC);

		return -EINVAL;
@@ -376,7 +356,8 @@ static int bfin_crypto_crc_handle_queue(struct bfin_crypto_crc *crc, 
			ctx->sg = req->src;



		/* Chop crc buffer size to multiple of 32 bit */

		nsg = ctx->sg_nents = sg_count(ctx->sg);

		nsg = sg_nents(ctx->sg);

		ctx->sg_nents = nsg;

		ctx->sg_buflen = ctx->buflast_len + req->nbytes;

		ctx->bufnext_len = ctx->sg_buflen % 4;

		ctx->sg_buflen &= ~0x3;