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authorRussell King <rmk+kernel@arm.linux.org.uk>2015-10-18 17:24:01 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2015-10-20 22:11:04 +0800
commit8651791e5403a0e0634b76dee91b102dc4f40385 (patch)
treedb68b60369acbfb9c57b9edaaec7c38dbed06ba1 /drivers/crypto
parentc439e4eec73373c6d5b7129ece69d67978ada307 (diff)
downloadlinux-8651791e5403a0e0634b76dee91b102dc4f40385.tar.bz2
crypto: marvell/cesa - factor out first fragment decisions to helper
Multiple locations in the driver test the operation context fragment type, checking whether it is a first fragment or not. Introduce a mv_cesa_mac_op_is_first_frag() helper, which returns true if the fragment operation is for a first fragment. 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/cesa.h6
-rw-r--r--drivers/crypto/marvell/hash.c9
2 files changed, 9 insertions, 6 deletions
diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h
index 14f8285379b3..1103405354db 100644
--- a/drivers/crypto/marvell/cesa.h
+++ b/drivers/crypto/marvell/cesa.h
@@ -686,6 +686,12 @@ static inline u32 mv_cesa_get_int_mask(struct mv_cesa_engine *engine)
return engine->int_mask;
}
+static inline bool mv_cesa_mac_op_is_first_frag(const struct mv_cesa_op_ctx *op)
+{
+ return (mv_cesa_get_op_cfg(op) & CESA_SA_DESC_CFG_FRAG_MSK) ==
+ CESA_SA_DESC_CFG_FIRST_FRAG;
+}
+
int mv_cesa_queue_req(struct crypto_async_request *req);
/* TDMA functions */
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
index 8c0aaa96ac3f..5ae2061ebb05 100644
--- a/drivers/crypto/marvell/hash.c
+++ b/drivers/crypto/marvell/hash.c
@@ -524,8 +524,7 @@ mv_cesa_ahash_dma_add_data(struct mv_cesa_tdma_chain *chain,
mv_cesa_set_mac_op_frag_len(op, dma_iter->base.op_len);
- if ((mv_cesa_get_op_cfg(&creq->op_tmpl) & CESA_SA_DESC_CFG_FRAG_MSK) ==
- CESA_SA_DESC_CFG_FIRST_FRAG)
+ if (mv_cesa_mac_op_is_first_frag(&creq->op_tmpl))
mv_cesa_update_op_cfg(&creq->op_tmpl,
CESA_SA_DESC_CFG_MID_FRAG,
CESA_SA_DESC_CFG_FRAG_MSK);
@@ -561,8 +560,7 @@ mv_cesa_ahash_dma_last_req(struct mv_cesa_tdma_chain *chain,
if (op && creq->len <= CESA_SA_DESC_MAC_SRC_TOTAL_LEN_MAX) {
u32 frag = CESA_SA_DESC_CFG_NOT_FRAG;
- if ((mv_cesa_get_op_cfg(op) & CESA_SA_DESC_CFG_FRAG_MSK) !=
- CESA_SA_DESC_CFG_FIRST_FRAG)
+ if (!mv_cesa_mac_op_is_first_frag(op))
frag = CESA_SA_DESC_CFG_LAST_FRAG;
mv_cesa_update_op_cfg(op, frag, CESA_SA_DESC_CFG_FRAG_MSK);
@@ -600,8 +598,7 @@ mv_cesa_ahash_dma_last_req(struct mv_cesa_tdma_chain *chain,
if (padoff >= trailerlen)
return op;
- if ((mv_cesa_get_op_cfg(&creq->op_tmpl) & CESA_SA_DESC_CFG_FRAG_MSK) !=
- CESA_SA_DESC_CFG_FIRST_FRAG)
+ if (!mv_cesa_mac_op_is_first_frag(&creq->op_tmpl))
mv_cesa_update_op_cfg(&creq->op_tmpl,
CESA_SA_DESC_CFG_MID_FRAG,
CESA_SA_DESC_CFG_FRAG_MSK);