diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/scatterwalk.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h index 8e83c43016c9..1689ecd7ddaf 100644 --- a/include/crypto/scatterwalk.h +++ b/include/crypto/scatterwalk.h @@ -170,8 +170,28 @@ void scatterwalk_skip(struct scatter_walk *walk, unsigned int nbytes); void scatterwalk_copychunks(void *buf, struct scatter_walk *walk, size_t nbytes, int out); -void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg, - unsigned int start, unsigned int nbytes, int out); +void memcpy_from_scatterwalk(void *buf, struct scatter_walk *walk, + unsigned int nbytes); + +void memcpy_to_scatterwalk(struct scatter_walk *walk, const void *buf, + unsigned int nbytes); + +void memcpy_from_sglist(void *buf, struct scatterlist *sg, + unsigned int start, unsigned int nbytes); + +void memcpy_to_sglist(struct scatterlist *sg, unsigned int start, + const void *buf, unsigned int nbytes); + +/* In new code, please use memcpy_{from,to}_sglist() directly instead. */ +static inline void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg, + unsigned int start, + unsigned int nbytes, int out) +{ + if (out) + memcpy_to_sglist(sg, start, buf, nbytes); + else + memcpy_from_sglist(buf, sg, start, nbytes); +} struct scatterlist *scatterwalk_ffwd(struct scatterlist dst[2], struct scatterlist *src, |