diff options
Diffstat (limited to 'drivers/crypto/caam/caamhash.c')
| -rw-r--r-- | drivers/crypto/caam/caamhash.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index 36365b3efdfd..24acd52b222e 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -1094,13 +1094,16 @@ static int ahash_digest(struct ahash_request *req) u32 options; int sh_len; - src_nents = sg_count(req->src, req->nbytes); + src_nents = sg_nents_for_len(req->src, req->nbytes); if (src_nents < 0) { dev_err(jrdev, "Invalid number of src SG.\n"); return src_nents; } - dma_map_sg(jrdev, req->src, src_nents ? : 1, DMA_TO_DEVICE); - sec4_sg_bytes = src_nents * sizeof(struct sec4_sg_entry); + dma_map_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE); + if (src_nents > 1) + sec4_sg_bytes = src_nents * sizeof(struct sec4_sg_entry); + else + sec4_sg_bytes = 0; /* allocate space for base edesc and hw desc commands, link tables */ edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes + DESC_JOB_IO_LEN, @@ -1118,7 +1121,7 @@ static int ahash_digest(struct ahash_request *req) desc = edesc->hw_desc; init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE); - if (src_nents) { + if (src_nents > 1) { sg_to_sec4_sg_last(req->src, src_nents, edesc->sec4_sg, 0); edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg, sec4_sg_bytes, DMA_TO_DEVICE); @@ -1246,7 +1249,7 @@ static int ahash_update_no_ctx(struct ahash_request *req) if (to_hash) { src_nents = sg_nents_for_len(req->src, - req->nbytes - (*next_buflen)); + req->nbytes - *next_buflen); if (src_nents < 0) { dev_err(jrdev, "Invalid number of src SG.\n"); return src_nents; @@ -1450,13 +1453,18 @@ static int ahash_update_first(struct ahash_request *req) to_hash = req->nbytes - *next_buflen; if (to_hash) { - src_nents = sg_count(req->src, req->nbytes - (*next_buflen)); + src_nents = sg_nents_for_len(req->src, + req->nbytes - *next_buflen); if (src_nents < 0) { dev_err(jrdev, "Invalid number of src SG.\n"); return src_nents; } - dma_map_sg(jrdev, req->src, src_nents ? : 1, DMA_TO_DEVICE); - sec4_sg_bytes = src_nents * sizeof(struct sec4_sg_entry); + dma_map_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE); + if (src_nents > 1) + sec4_sg_bytes = src_nents * + sizeof(struct sec4_sg_entry); + else + sec4_sg_bytes = 0; /* * allocate space for base edesc and hw desc commands, @@ -1476,7 +1484,7 @@ static int ahash_update_first(struct ahash_request *req) DESC_JOB_IO_LEN; edesc->dst_dma = 0; - if (src_nents) { + if (src_nents > 1) { sg_to_sec4_sg_last(req->src, src_nents, edesc->sec4_sg, 0); edesc->sec4_sg_dma = dma_map_single(jrdev, |