crypto: caam - dma_map_sg can handle chained SG
The caam driver use two dma_map_sg path according to SG are chained
or not.
Since dma_map_sg can handle both case, clean the code with all
references to sg chained.
Thus removing dma_map_sg_chained, dma_unmap_sg_chained
and __sg_count functions.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index ba79d63..ad0d1ec 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1708,11 +1708,8 @@
/*
* aead_edesc - s/w-extended aead descriptor
* @assoc_nents: number of segments in associated data (SPI+Seq) scatterlist
- * @assoc_chained: if source is chained
* @src_nents: number of segments in input scatterlist
- * @src_chained: if source is chained
* @dst_nents: number of segments in output scatterlist
- * @dst_chained: if destination is chained
* @iv_dma: dma address of iv for checking continuity and link table
* @desc: h/w descriptor (variable length; must not exceed MAX_CAAM_DESCSIZE)
* @sec4_sg_bytes: length of dma mapped sec4_sg space
@@ -1721,11 +1718,8 @@
*/
struct aead_edesc {
int assoc_nents;
- bool assoc_chained;
int src_nents;
- bool src_chained;
int dst_nents;
- bool dst_chained;
dma_addr_t iv_dma;
int sec4_sg_bytes;
dma_addr_t sec4_sg_dma;
@@ -1736,9 +1730,7 @@
/*
* ablkcipher_edesc - s/w-extended ablkcipher descriptor
* @src_nents: number of segments in input scatterlist
- * @src_chained: if source is chained
* @dst_nents: number of segments in output scatterlist
- * @dst_chained: if destination is chained
* @iv_dma: dma address of iv for checking continuity and link table
* @desc: h/w descriptor (variable length; must not exceed MAX_CAAM_DESCSIZE)
* @sec4_sg_bytes: length of dma mapped sec4_sg space
@@ -1747,9 +1739,7 @@
*/
struct ablkcipher_edesc {
int src_nents;
- bool src_chained;
int dst_nents;
- bool dst_chained;
dma_addr_t iv_dma;
int sec4_sg_bytes;
dma_addr_t sec4_sg_dma;
@@ -1759,18 +1749,15 @@
static void caam_unmap(struct device *dev, struct scatterlist *src,
struct scatterlist *dst, int src_nents,
- bool src_chained, int dst_nents, bool dst_chained,
+ int dst_nents,
dma_addr_t iv_dma, int ivsize, dma_addr_t sec4_sg_dma,
int sec4_sg_bytes)
{
if (dst != src) {
- dma_unmap_sg_chained(dev, src, src_nents ? : 1, DMA_TO_DEVICE,
- src_chained);
- dma_unmap_sg_chained(dev, dst, dst_nents ? : 1, DMA_FROM_DEVICE,
- dst_chained);
+ dma_unmap_sg(dev, src, src_nents ? : 1, DMA_TO_DEVICE);
+ dma_unmap_sg(dev, dst, dst_nents ? : 1, DMA_FROM_DEVICE);
} else {
- dma_unmap_sg_chained(dev, src, src_nents ? : 1,
- DMA_BIDIRECTIONAL, src_chained);
+ dma_unmap_sg(dev, src, src_nents ? : 1, DMA_BIDIRECTIONAL);
}
if (iv_dma)
@@ -1785,8 +1772,7 @@
struct aead_request *req)
{
caam_unmap(dev, req->src, req->dst,
- edesc->src_nents, edesc->src_chained, edesc->dst_nents,
- edesc->dst_chained, 0, 0,
+ edesc->src_nents, edesc->dst_nents, 0, 0,
edesc->sec4_sg_dma, edesc->sec4_sg_bytes);
}
@@ -1798,8 +1784,8 @@
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
caam_unmap(dev, req->src, req->dst,
- edesc->src_nents, edesc->src_chained, edesc->dst_nents,
- edesc->dst_chained, edesc->iv_dma, ivsize,
+ edesc->src_nents, edesc->dst_nents,
+ edesc->iv_dma, ivsize,
edesc->sec4_sg_dma, edesc->sec4_sg_bytes);
}
@@ -2169,22 +2155,18 @@
struct aead_edesc *edesc;
int sgc;
bool all_contig = true;
- bool src_chained = false, dst_chained = false;
int sec4_sg_index, sec4_sg_len = 0, sec4_sg_bytes;
unsigned int authsize = ctx->authsize;
if (unlikely(req->dst != req->src)) {
- src_nents = sg_count(req->src, req->assoclen + req->cryptlen,
- &src_chained);
+ src_nents = sg_count(req->src, req->assoclen + req->cryptlen);
dst_nents = sg_count(req->dst,
req->assoclen + req->cryptlen +
- (encrypt ? authsize : (-authsize)),
- &dst_chained);
+ (encrypt ? authsize : (-authsize)));
} else {
src_nents = sg_count(req->src,
req->assoclen + req->cryptlen +
- (encrypt ? authsize : 0),
- &src_chained);
+ (encrypt ? authsize : 0));
}
/* Check if data are contiguous. */
@@ -2207,37 +2189,35 @@
}
if (likely(req->src == req->dst)) {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_BIDIRECTIONAL, src_chained);
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL);
if (unlikely(!sgc)) {
dev_err(jrdev, "unable to map source\n");
kfree(edesc);
return ERR_PTR(-ENOMEM);
}
} else {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_TO_DEVICE, src_chained);
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE);
if (unlikely(!sgc)) {
dev_err(jrdev, "unable to map source\n");
kfree(edesc);
return ERR_PTR(-ENOMEM);
}
- sgc = dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
- DMA_FROM_DEVICE, dst_chained);
+ sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE);
if (unlikely(!sgc)) {
dev_err(jrdev, "unable to map destination\n");
- dma_unmap_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_TO_DEVICE, src_chained);
+ dma_unmap_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE);
kfree(edesc);
return ERR_PTR(-ENOMEM);
}
}
edesc->src_nents = src_nents;
- edesc->src_chained = src_chained;
edesc->dst_nents = dst_nents;
- edesc->dst_chained = dst_chained;
edesc->sec4_sg = (void *)edesc + sizeof(struct aead_edesc) +
desc_bytes;
*all_contig_ptr = all_contig;
@@ -2467,22 +2447,21 @@
bool iv_contig = false;
int sgc;
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
- bool src_chained = false, dst_chained = false;
int sec4_sg_index;
- src_nents = sg_count(req->src, req->nbytes, &src_chained);
+ src_nents = sg_count(req->src, req->nbytes);
if (req->dst != req->src)
- dst_nents = sg_count(req->dst, req->nbytes, &dst_chained);
+ dst_nents = sg_count(req->dst, req->nbytes);
if (likely(req->src == req->dst)) {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_BIDIRECTIONAL, src_chained);
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL);
} else {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_TO_DEVICE, src_chained);
- sgc = dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
- DMA_FROM_DEVICE, dst_chained);
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE);
+ sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE);
}
iv_dma = dma_map_single(jrdev, req->info, ivsize, DMA_TO_DEVICE);
@@ -2511,9 +2490,7 @@
}
edesc->src_nents = src_nents;
- edesc->src_chained = src_chained;
edesc->dst_nents = dst_nents;
- edesc->dst_chained = dst_chained;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ablkcipher_edesc) +
desc_bytes;
@@ -2646,22 +2623,21 @@
bool iv_contig = false;
int sgc;
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
- bool src_chained = false, dst_chained = false;
int sec4_sg_index;
- src_nents = sg_count(req->src, req->nbytes, &src_chained);
+ src_nents = sg_count(req->src, req->nbytes);
if (unlikely(req->dst != req->src))
- dst_nents = sg_count(req->dst, req->nbytes, &dst_chained);
+ dst_nents = sg_count(req->dst, req->nbytes);
if (likely(req->src == req->dst)) {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_BIDIRECTIONAL, src_chained);
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL);
} else {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_TO_DEVICE, src_chained);
- sgc = dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
- DMA_FROM_DEVICE, dst_chained);
+ sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE);
+ sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE);
}
/*
@@ -2690,9 +2666,7 @@
}
edesc->src_nents = src_nents;
- edesc->src_chained = src_chained;
edesc->dst_nents = dst_nents;
- edesc->dst_chained = dst_chained;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ablkcipher_edesc) +
desc_bytes;