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Commit d23afa1a authored by LABBE Corentin's avatar LABBE Corentin Committed by Herbert Xu
Browse files

crypto: sahara - replace sahara_sg_length with sg_nents_for_len 



The sahara_sg_length function of the sahara driver is the same
as sg_nents_for_len from lib/scatterlist.c

Signed-off-by: default avatarLABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 76804eb8

drivers/crypto/sahara.c

+3 −27
Original line number Diff line number Diff line
@@ -274,30 +274,6 @@ static u32 sahara_aes_data_link_hdr(struct sahara_dev *dev) 
			SAHARA_HDR_CHA_SKHA | SAHARA_HDR_PARITY_BIT;

}



static int sahara_sg_length(struct scatterlist *sg,

			    unsigned int total)

{

	int sg_nb;

	unsigned int len;

	struct scatterlist *sg_list;



	sg_nb = 0;

	sg_list = sg;



	while (total) {

		len = min(sg_list->length, total);



		sg_nb++;

		total -= len;



		sg_list = sg_next(sg_list);

		if (!sg_list)

			total = 0;

	}



	return sg_nb;

}



static char *sahara_err_src[16] = {

	"No error",

	"Header error",
@@ -502,8 +478,8 @@ static int sahara_hw_descriptor_create(struct sahara_dev *dev) 
		idx++;

	}



	dev->nb_in_sg = sahara_sg_length(dev->in_sg, dev->total);

	dev->nb_out_sg = sahara_sg_length(dev->out_sg, dev->total);

	dev->nb_in_sg = sg_nents_for_len(dev->in_sg, dev->total);

	dev->nb_out_sg = sg_nents_for_len(dev->out_sg, dev->total);

	if ((dev->nb_in_sg + dev->nb_out_sg) > SAHARA_MAX_HW_LINK) {

		dev_err(dev->device, "not enough hw links (%d)\n",

			dev->nb_in_sg + dev->nb_out_sg);
@@ -818,7 +794,7 @@ static int sahara_sha_hw_links_create(struct sahara_dev *dev, 


	dev->in_sg = rctx->in_sg;



	dev->nb_in_sg = sahara_sg_length(dev->in_sg, rctx->total);

	dev->nb_in_sg = sg_nents_for_len(dev->in_sg, rctx->total);

	if ((dev->nb_in_sg) > SAHARA_MAX_HW_LINK) {

		dev_err(dev->device, "not enough hw links (%d)\n",

			dev->nb_in_sg + dev->nb_out_sg);