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crypto: bfin_crc - replace sg_count by sg_nents

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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 <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
LABBE Corentin 2015-09-18 14:57:09 +02:00 committed by Herbert Xu
parent be6ec98ddb
commit 1f6d79d7e0
1 changed files with 3 additions and 22 deletions
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25
drivers/crypto/bfin_crc.c
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@ -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;