diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2016-08-08 18:04:52 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-08-09 18:47:25 +0800 |
| commit | 343e44b15ecce6bca4b2caeae613a559e5be2720 (patch) | |
| tree | 317922e189535e505de3a4eb15be160800ff29cd /drivers/crypto/caam/caamhash.c | |
| parent | d7b24ed4a9a4250f483f4c2fea3588828ab43af2 (diff) | |
crypto: caam - replace sec4_sg pointer with array
Since the extended descriptor includes the hardware descriptor, and the
sec4 scatterlist immediately follows this, we can declare it as a array
at the very end of the extended descriptor. This allows us to get rid
of an initialiser for every site where we allocate an extended
descriptor.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam/caamhash.c')
| -rw-r--r-- | drivers/crypto/caam/caamhash.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index faf3d1bbcce9..aaaa3724e1f8 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -595,16 +595,16 @@ badkey: * @sec4_sg_dma: physical mapped address of h/w link table * @src_nents: number of segments in input scatterlist * @sec4_sg_bytes: length of dma mapped sec4_sg space - * @sec4_sg: pointer to h/w link table * @hw_desc: the h/w job descriptor followed by any referenced link tables + * @sec4_sg: h/w link table */ struct ahash_edesc { dma_addr_t dst_dma; dma_addr_t sec4_sg_dma; int src_nents; int sec4_sg_bytes; - struct sec4_sg_entry *sec4_sg; u32 hw_desc[DESC_JOB_IO_LEN / sizeof(u32)] ____cacheline_aligned; + struct sec4_sg_entry sec4_sg[0]; }; static inline void ahash_unmap(struct device *dev, @@ -825,7 +825,6 @@ 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 + 1); ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len, edesc->sec4_sg, DMA_BIDIRECTIONAL); @@ -935,7 +934,6 @@ 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 + 1); edesc->src_nents = 0; ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len, @@ -1025,7 +1023,6 @@ 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 + 1); ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len, edesc->sec4_sg, DMA_TO_DEVICE); @@ -1106,7 +1103,7 @@ static int ahash_digest(struct ahash_request *req) dev_err(jrdev, "could not allocate extended descriptor\n"); return -ENOMEM; } - edesc->sec4_sg = (void *)(edesc + 1); + edesc->sec4_sg_bytes = sec4_sg_bytes; edesc->src_nents = src_nents; @@ -1264,7 +1261,6 @@ 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 + 1); edesc->dst_dma = 0; state->buf_dma = buf_map_to_sec4_sg(jrdev, edesc->sec4_sg, @@ -1375,7 +1371,6 @@ 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 + 1); state->buf_dma = try_buf_map_to_sec4_sg(jrdev, edesc->sec4_sg, buf, state->buf_dma, buflen, @@ -1470,7 +1465,6 @@ 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 + 1); edesc->dst_dma = 0; if (src_nents > 1) { |