diff options
Diffstat (limited to 'drivers/crypto/talitos.c')
| -rw-r--r-- | drivers/crypto/talitos.c | 41 |
1 files changed, 20 insertions, 21 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index f0507d167c2..2cba392f168 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -716,6 +716,8 @@ badkey: * talitos_edesc - s/w-extended descriptor * @src_nents: number of segments in input scatterlist * @dst_nents: number of segments in output scatterlist + * @src_chained: whether src is chained or not + * @dst_chained: whether dst is chained or not * @dma_len: length of dma mapped link_tbl space * @dma_link_tbl: bus physical address of link_tbl * @desc: h/w descriptor @@ -728,8 +730,8 @@ badkey: struct talitos_edesc { int src_nents; int dst_nents; - int src_is_chained; - int dst_is_chained; + bool src_chained; + bool dst_chained; int dma_len; dma_addr_t dma_link_tbl; struct talitos_desc desc; @@ -738,7 +740,7 @@ struct talitos_edesc { static int talitos_map_sg(struct device *dev, struct scatterlist *sg, unsigned int nents, enum dma_data_direction dir, - int chained) + bool chained) { if (unlikely(chained)) while (sg) { @@ -768,13 +770,13 @@ static void talitos_sg_unmap(struct device *dev, unsigned int dst_nents = edesc->dst_nents ? : 1; if (src != dst) { - if (edesc->src_is_chained) + if (edesc->src_chained) talitos_unmap_sg_chain(dev, src, DMA_TO_DEVICE); else dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE); if (dst) { - if (edesc->dst_is_chained) + if (edesc->dst_chained) talitos_unmap_sg_chain(dev, dst, DMA_FROM_DEVICE); else @@ -782,7 +784,7 @@ static void talitos_sg_unmap(struct device *dev, DMA_FROM_DEVICE); } } else - if (edesc->src_is_chained) + if (edesc->src_chained) talitos_unmap_sg_chain(dev, src, DMA_BIDIRECTIONAL); else dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL); @@ -974,7 +976,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq, sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1, (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE, - edesc->src_is_chained); + edesc->src_chained); if (sg_count == 1) { to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src)); @@ -1006,8 +1008,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq, if (areq->src != areq->dst) sg_count = talitos_map_sg(dev, areq->dst, edesc->dst_nents ? : 1, - DMA_FROM_DEVICE, - edesc->dst_is_chained); + DMA_FROM_DEVICE, edesc->dst_chained); if (sg_count == 1) { to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst)); @@ -1053,17 +1054,17 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq, /* * derive number of elements in scatterlist */ -static int sg_count(struct scatterlist *sg_list, int nbytes, int *chained) +static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained) { struct scatterlist *sg = sg_list; int sg_nents = 0; - *chained = 0; + *chained = false; while (nbytes > 0) { sg_nents++; nbytes -= sg->length; if (!sg_is_last(sg) && (sg + 1)->length == 0) - *chained = 1; + *chained = true; sg = scatterwalk_sg_next(sg); } @@ -1141,7 +1142,7 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, { struct talitos_edesc *edesc; int src_nents, dst_nents, alloc_len, dma_len; - int src_chained, dst_chained = 0; + bool src_chained, dst_chained = false; gfp_t flags = cryptoflags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : GFP_ATOMIC; @@ -1188,8 +1189,8 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, edesc->src_nents = src_nents; edesc->dst_nents = dst_nents; - edesc->src_is_chained = src_chained; - edesc->dst_is_chained = dst_chained; + edesc->src_chained = src_chained; + edesc->dst_chained = dst_chained; edesc->dma_len = dma_len; if (dma_len) edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0], @@ -1381,7 +1382,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc, sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1, (areq->src == areq->dst) ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE, - edesc->src_is_chained); + edesc->src_chained); if (sg_count == 1) { to_talitos_ptr(&desc->ptr[3], sg_dma_address(areq->src)); @@ -1408,8 +1409,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc, if (areq->src != areq->dst) sg_count = talitos_map_sg(dev, areq->dst, edesc->dst_nents ? : 1, - DMA_FROM_DEVICE, - edesc->dst_is_chained); + DMA_FROM_DEVICE, edesc->dst_chained); if (sg_count == 1) { to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->dst)); @@ -1577,8 +1577,7 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc, sg_count = talitos_map_sg(dev, req_ctx->psrc, edesc->src_nents ? : 1, - DMA_TO_DEVICE, - edesc->src_is_chained); + DMA_TO_DEVICE, edesc->src_chained); if (sg_count == 1) { to_talitos_ptr(&desc->ptr[3], sg_dma_address(req_ctx->psrc)); @@ -1689,7 +1688,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes) unsigned int nbytes_to_hash; unsigned int to_hash_later; unsigned int nsg; - int chained; + bool chained; if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) { /* Buffer up to one whole block */ |