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crypto: caam - incorporate job descriptor into struct ahash_edesc 

Rather than giving the descriptor as hw_desc[0], give it's real size.
All places where we allocate an ahash_edesc incorporate DESC_JOB_IO_LEN
bytes of job descriptor.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Russell King 2016-08-08 18:04:42 +01:00 committed by Herbert Xu
parent e11793f5da
commit 64ce56cb44
1 changed files with 19 additions and 30 deletions
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49
drivers/crypto/caam/caamhash.c
View File

@ -604,7 +604,7 @@ struct ahash_edesc {
int src_nents;
int sec4_sg_bytes;
struct sec4_sg_entry *sec4_sg;
u32 hw_desc[0];
u32 hw_desc[DESC_JOB_IO_LEN / sizeof(u32)];
};
static inline void ahash_unmap(struct device *dev,
@ -815,8 +815,8 @@ static int ahash_update_ctx(struct ahash_request *req)
* allocate space for base edesc and hw desc commands,
* link tables
*/
edesc = kzalloc(sizeof(*edesc) + DESC_JOB_IO_LEN +
sec4_sg_bytes, GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes,
GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev,
"could not allocate extended descriptor\n");
@ -825,8 +825,7 @@ static int ahash_update_ctx(struct ahash_request *req)
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
DESC_JOB_IO_LEN;
edesc->sec4_sg = (void *)(edesc + 1);
ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
edesc->sec4_sg, DMA_BIDIRECTIONAL);
@ -925,8 +924,7 @@ static int ahash_final_ctx(struct ahash_request *req)
sec4_sg_bytes = sec4_sg_src_index * sizeof(struct sec4_sg_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kzalloc(sizeof(*edesc) + DESC_JOB_IO_LEN + sec4_sg_bytes,
GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes, GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
return -ENOMEM;
@ -937,8 +935,7 @@ static int ahash_final_ctx(struct ahash_request *req)
init_job_desc_shared(desc, ptr, sh_len, HDR_SHARE_DEFER | HDR_REVERSE);
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
DESC_JOB_IO_LEN;
edesc->sec4_sg = (void *)(edesc + 1);
edesc->src_nents = 0;
ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
@ -1016,8 +1013,7 @@ static int ahash_finup_ctx(struct ahash_request *req)
sizeof(struct sec4_sg_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kzalloc(sizeof(*edesc) + DESC_JOB_IO_LEN + sec4_sg_bytes,
GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes, GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
return -ENOMEM;
@ -1029,8 +1025,7 @@ static int ahash_finup_ctx(struct ahash_request *req)
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
DESC_JOB_IO_LEN;
edesc->sec4_sg = (void *)(edesc + 1);
ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
edesc->sec4_sg, DMA_TO_DEVICE);
@ -1106,14 +1101,12 @@ static int ahash_digest(struct ahash_request *req)
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,
GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes, GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
return -ENOMEM;
}
edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
DESC_JOB_IO_LEN;
edesc->sec4_sg = (void *)(edesc + 1);
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->src_nents = src_nents;
@ -1179,7 +1172,7 @@ static int ahash_final_no_ctx(struct ahash_request *req)
int sh_len;
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kzalloc(sizeof(*edesc) + DESC_JOB_IO_LEN, GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc), GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
return -ENOMEM;
@ -1261,8 +1254,8 @@ static int ahash_update_no_ctx(struct ahash_request *req)
* allocate space for base edesc and hw desc commands,
* link tables
*/
edesc = kzalloc(sizeof(*edesc) + DESC_JOB_IO_LEN +
sec4_sg_bytes, GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes,
GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev,
"could not allocate extended descriptor\n");
@ -1271,8 +1264,7 @@ static int ahash_update_no_ctx(struct ahash_request *req)
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
DESC_JOB_IO_LEN;
edesc->sec4_sg = (void *)(edesc + 1);
edesc->dst_dma = 0;
state->buf_dma = buf_map_to_sec4_sg(jrdev, edesc->sec4_sg,
@ -1371,8 +1363,7 @@ static int ahash_finup_no_ctx(struct ahash_request *req)
sizeof(struct sec4_sg_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kzalloc(sizeof(*edesc) + DESC_JOB_IO_LEN + sec4_sg_bytes,
GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes, GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
return -ENOMEM;
@ -1384,8 +1375,7 @@ static int ahash_finup_no_ctx(struct ahash_request *req)
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
DESC_JOB_IO_LEN;
edesc->sec4_sg = (void *)(edesc + 1);
state->buf_dma = try_buf_map_to_sec4_sg(jrdev, edesc->sec4_sg, buf,
state->buf_dma, buflen,
@ -1470,8 +1460,8 @@ static int ahash_update_first(struct ahash_request *req)
* allocate space for base edesc and hw desc commands,
* link tables
*/
edesc = kzalloc(sizeof(*edesc) + DESC_JOB_IO_LEN +
sec4_sg_bytes, GFP_DMA | flags);
edesc = kzalloc(sizeof(*edesc) + sec4_sg_bytes,
GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev,
"could not allocate extended descriptor\n");
@ -1480,8 +1470,7 @@ static int ahash_update_first(struct ahash_request *req)
edesc->src_nents = src_nents;
edesc->sec4_sg_bytes = sec4_sg_bytes;
edesc->sec4_sg = (void *)edesc + sizeof(struct ahash_edesc) +
DESC_JOB_IO_LEN;
edesc->sec4_sg = (void *)(edesc + 1);
edesc->dst_dma = 0;
if (src_nents > 1) {