Commit 5506f53c authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: scatterwalk - Remove scatterwalk_bytes_sglen 



This patch removes the now unused scatterwalk_bytes_sglen.  Anyone
using this out-of-tree should switch over to sg_nents_for_len.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 7c001a86

crypto/scatterwalk.c

+0 −22
Original line number Diff line number Diff line
@@ -125,28 +125,6 @@ void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg, 
}

EXPORT_SYMBOL_GPL(scatterwalk_map_and_copy);



int scatterwalk_bytes_sglen(struct scatterlist *sg, int num_bytes)

{

	int offset = 0, n = 0;



	/* num_bytes is too small */

	if (num_bytes < sg->length)

		return -1;



	do {

		offset += sg->length;

		n++;

		sg = sg_next(sg);



		/* num_bytes is too large */

		if (unlikely(!sg && (num_bytes < offset)))

			return -1;

	} while (sg && (num_bytes > offset));



	return n;

}

EXPORT_SYMBOL_GPL(scatterwalk_bytes_sglen);



struct scatterlist *scatterwalk_ffwd(struct scatterlist dst[2],

				     struct scatterlist *src,

				     unsigned int len)

include/crypto/scatterwalk.h

+0 −2
Original line number Diff line number Diff line
@@ -92,8 +92,6 @@ void scatterwalk_done(struct scatter_walk *walk, int out, int more); 
void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg,

			      unsigned int start, unsigned int nbytes, int out);



int scatterwalk_bytes_sglen(struct scatterlist *sg, int num_bytes);



struct scatterlist *scatterwalk_ffwd(struct scatterlist dst[2],

				     struct scatterlist *src,

				     unsigned int len);