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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-10-18 17:24:37 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-10-20 22:11:08 +0800 |
| commit | 58953e15ef015ba9136b7234a7098cf827428999 (patch) | |
| tree | 649a896c3b9c6e3e3520574aeaf769f68e5f55a0 /drivers/crypto | |
| parent | e41bbebddec44f7c06585f42686b2a529513fc6a (diff) | |
| download | linux-58953e15ef015ba9136b7234a7098cf827428999.tar.gz linux-58953e15ef015ba9136b7234a7098cf827428999.tar.bz2 linux-58953e15ef015ba9136b7234a7098cf827428999.zip | |
crypto: marvell/cesa - rearrange last request handling
Move the test for the last request out of mv_cesa_ahash_dma_last_req()
to its caller, and move the mv_cesa_dma_add_frag() down into this
function.
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')
| -rw-r--r-- | drivers/crypto/marvell/hash.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c index ce457d6e900e..71d29f025bbe 100644 --- a/drivers/crypto/marvell/hash.c +++ b/drivers/crypto/marvell/hash.c @@ -522,15 +522,21 @@ static struct mv_cesa_op_ctx * mv_cesa_ahash_dma_last_req(struct mv_cesa_tdma_chain *chain, struct mv_cesa_ahash_dma_iter *dma_iter, struct mv_cesa_ahash_req *creq, - struct mv_cesa_op_ctx *op, - gfp_t flags) + unsigned int frag_len, gfp_t flags) { struct mv_cesa_ahash_dma_req *ahashdreq = &creq->req.dma; unsigned int len, trailerlen, padoff = 0; + struct mv_cesa_op_ctx *op; int ret; - if (!creq->last_req) - return op; + if (frag_len) { + op = mv_cesa_dma_add_frag(chain, &creq->op_tmpl, frag_len, + flags); + if (IS_ERR(op)) + return op; + } else { + op = NULL; + } if (op && creq->len <= CESA_SA_DESC_MAC_SRC_TOTAL_LEN_MAX) { u32 frag = CESA_SA_DESC_CFG_NOT_FRAG; @@ -657,16 +663,18 @@ static int mv_cesa_ahash_dma_req_init(struct ahash_request *req) frag_len = iter.base.op_len; } - if (frag_len) { + /* + * At this point, frag_len indicates whether we have any data + * outstanding which needs an operation. Queue up the final + * operation, which depends whether this is the final request. + */ + if (creq->last_req) + op = mv_cesa_ahash_dma_last_req(&chain, &iter, creq, frag_len, + flags); + else if (frag_len) op = mv_cesa_dma_add_frag(&chain, &creq->op_tmpl, frag_len, flags); - if (IS_ERR(op)) { - ret = PTR_ERR(op); - goto err_free_tdma; - } - } - op = mv_cesa_ahash_dma_last_req(&chain, &iter, creq, op, flags); if (IS_ERR(op)) { ret = PTR_ERR(op); goto err_free_tdma; |