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: LABBE Corentin <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/bfin_crc.c

···
 	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
  */
···
 	}
 	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;
···
 			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;