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Date: Thu, 16 Jan 2020 18:20:47 +0200
From: Iuliana Prodan <iuliana.prodan@....com>
To: Herbert Xu <herbert@...dor.apana.org.au>,
Horia Geanta <horia.geanta@....com>,
Aymen Sghaier <aymen.sghaier@....com>
Cc: "David S. Miller" <davem@...emloft.net>,
Silvano Di Ninno <silvano.dininno@....com>,
Franck Lenormand <franck.lenormand@....com>,
linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-imx <linux-imx@....com>,
Iuliana Prodan <iuliana.prodan@....com>
Subject: [PATCH v3 3/9] crypto: caam - refactor ahash_edesc_alloc
Changed parameters for ahash_edesc_alloc function:
- remove flags since they can be computed in
ahash_edesc_alloc, the only place they are needed;
- use ahash_request instead of caam_hash_ctx, to be
able to compute gfp flags.
Signed-off-by: Iuliana Prodan <iuliana.prodan@....com>
Reviewed-by: Horia Geanta <horia.geanta@....com>
---
drivers/crypto/caam/caamhash.c | 62 +++++++++++++++---------------------------
1 file changed, 22 insertions(+), 40 deletions(-)
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 59881a8..4db8507 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -661,11 +661,14 @@ static void ahash_done_ctx_dst(struct device *jrdev, u32 *desc, u32 err,
* Allocate an enhanced descriptor, which contains the hardware descriptor
* and space for hardware scatter table containing sg_num entries.
*/
-static struct ahash_edesc *ahash_edesc_alloc(struct caam_hash_ctx *ctx,
+static struct ahash_edesc *ahash_edesc_alloc(struct ahash_request *req,
int sg_num, u32 *sh_desc,
- dma_addr_t sh_desc_dma,
- gfp_t flags)
+ dma_addr_t sh_desc_dma)
{
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+ gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
+ GFP_KERNEL : GFP_ATOMIC;
struct ahash_edesc *edesc;
unsigned int sg_size = sg_num * sizeof(struct sec4_sg_entry);
@@ -724,8 +727,6 @@ static int ahash_update_ctx(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
u8 *buf = state->buf;
int *buflen = &state->buflen;
int *next_buflen = &state->next_buflen;
@@ -779,8 +780,8 @@ static int ahash_update_ctx(struct ahash_request *req)
* allocate space for base edesc and hw desc commands,
* link tables
*/
- edesc = ahash_edesc_alloc(ctx, pad_nents, ctx->sh_desc_update,
- ctx->sh_desc_update_dma, flags);
+ edesc = ahash_edesc_alloc(req, pad_nents, ctx->sh_desc_update,
+ ctx->sh_desc_update_dma);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@@ -854,8 +855,6 @@ static int ahash_final_ctx(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
int buflen = state->buflen;
u32 *desc;
int sec4_sg_bytes;
@@ -867,8 +866,8 @@ static int ahash_final_ctx(struct ahash_request *req)
sizeof(struct sec4_sg_entry);
/* allocate space for base edesc and hw desc commands, link tables */
- edesc = ahash_edesc_alloc(ctx, 4, ctx->sh_desc_fin,
- ctx->sh_desc_fin_dma, flags);
+ edesc = ahash_edesc_alloc(req, 4, ctx->sh_desc_fin,
+ ctx->sh_desc_fin_dma);
if (!edesc)
return -ENOMEM;
@@ -920,8 +919,6 @@ static int ahash_finup_ctx(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
int buflen = state->buflen;
u32 *desc;
int sec4_sg_src_index;
@@ -950,9 +947,8 @@ static int ahash_finup_ctx(struct ahash_request *req)
sec4_sg_src_index = 1 + (buflen ? 1 : 0);
/* allocate space for base edesc and hw desc commands, link tables */
- edesc = ahash_edesc_alloc(ctx, sec4_sg_src_index + mapped_nents,
- ctx->sh_desc_fin, ctx->sh_desc_fin_dma,
- flags);
+ edesc = ahash_edesc_alloc(req, sec4_sg_src_index + mapped_nents,
+ ctx->sh_desc_fin, ctx->sh_desc_fin_dma);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@@ -1000,8 +996,6 @@ static int ahash_digest(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
u32 *desc;
int digestsize = crypto_ahash_digestsize(ahash);
int src_nents, mapped_nents;
@@ -1028,9 +1022,8 @@ static int ahash_digest(struct ahash_request *req)
}
/* allocate space for base edesc and hw desc commands, link tables */
- edesc = ahash_edesc_alloc(ctx, mapped_nents > 1 ? mapped_nents : 0,
- ctx->sh_desc_digest, ctx->sh_desc_digest_dma,
- flags);
+ edesc = ahash_edesc_alloc(req, mapped_nents > 1 ? mapped_nents : 0,
+ ctx->sh_desc_digest, ctx->sh_desc_digest_dma);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@@ -1077,8 +1070,6 @@ static int ahash_final_no_ctx(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
u8 *buf = state->buf;
int buflen = state->buflen;
u32 *desc;
@@ -1087,8 +1078,8 @@ static int ahash_final_no_ctx(struct ahash_request *req)
int ret;
/* allocate space for base edesc and hw desc commands, link tables */
- edesc = ahash_edesc_alloc(ctx, 0, ctx->sh_desc_digest,
- ctx->sh_desc_digest_dma, flags);
+ edesc = ahash_edesc_alloc(req, 0, ctx->sh_desc_digest,
+ ctx->sh_desc_digest_dma);
if (!edesc)
return -ENOMEM;
@@ -1136,8 +1127,6 @@ static int ahash_update_no_ctx(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
u8 *buf = state->buf;
int *buflen = &state->buflen;
int *next_buflen = &state->next_buflen;
@@ -1190,10 +1179,9 @@ static int ahash_update_no_ctx(struct ahash_request *req)
* allocate space for base edesc and hw desc commands,
* link tables
*/
- edesc = ahash_edesc_alloc(ctx, pad_nents,
+ edesc = ahash_edesc_alloc(req, pad_nents,
ctx->sh_desc_update_first,
- ctx->sh_desc_update_first_dma,
- flags);
+ ctx->sh_desc_update_first_dma);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@@ -1261,8 +1249,6 @@ static int ahash_finup_no_ctx(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
int buflen = state->buflen;
u32 *desc;
int sec4_sg_bytes, sec4_sg_src_index, src_nents, mapped_nents;
@@ -1292,9 +1278,8 @@ 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 = ahash_edesc_alloc(ctx, sec4_sg_src_index + mapped_nents,
- ctx->sh_desc_digest, ctx->sh_desc_digest_dma,
- flags);
+ edesc = ahash_edesc_alloc(req, sec4_sg_src_index + mapped_nents,
+ ctx->sh_desc_digest, ctx->sh_desc_digest_dma);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
@@ -1347,8 +1332,6 @@ static int ahash_update_first(struct ahash_request *req)
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct device *jrdev = ctx->jrdev;
- gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
- GFP_KERNEL : GFP_ATOMIC;
u8 *buf = state->buf;
int *buflen = &state->buflen;
int *next_buflen = &state->next_buflen;
@@ -1396,11 +1379,10 @@ static int ahash_update_first(struct ahash_request *req)
* allocate space for base edesc and hw desc commands,
* link tables
*/
- edesc = ahash_edesc_alloc(ctx, mapped_nents > 1 ?
+ edesc = ahash_edesc_alloc(req, mapped_nents > 1 ?
mapped_nents : 0,
ctx->sh_desc_update_first,
- ctx->sh_desc_update_first_dma,
- flags);
+ ctx->sh_desc_update_first_dma);
if (!edesc) {
dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE);
return -ENOMEM;
--
2.1.0
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