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authorHoria Geanta <horia.geanta@freescale.com>2012-08-02 17:16:39 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2012-08-28 23:56:26 +0800
commit2a1cfe46b17f6dd43fcd8eb2b5e5deaa2a94e4bb (patch)
treee09ecb81f77bad938b737ce059f2755afd9c5b8a /drivers/crypto/talitos.c
parent602499a34247a890fd018c364c9bb6f9b931c1db (diff)
downloadlinux-linaro-stable-2a1cfe46b17f6dd43fcd8eb2b5e5deaa2a94e4bb.tar.gz
crypto: talitos - change type and name for [src|dst]_is_chained
It's more natural to think of these vars as bool rather than int. Signed-off-by: Horia Geanta <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/talitos.c')
-rw-r--r--drivers/crypto/talitos.c41
1 files changed, 20 insertions, 21 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index f0507d167c2f..2cba392f1682 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 */