diff mbox series

[3/8] staging: ccree: simplify AEAD using local var

Message ID 1510047606-5589-4-git-send-email-gilad@benyossef.com
State Superseded
Headers show
Series None | expand

Commit Message

Gilad Ben-Yossef Nov. 7, 2017, 9:39 a.m. UTC
Make the code more readable by using a local variable
for commonly use expression in the AEAD part of the driver.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>

---
 drivers/staging/ccree/ssi_aead.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

-- 
2.7.4

Comments

Dan Carpenter Nov. 7, 2017, 10:35 a.m. UTC | #1
On Tue, Nov 07, 2017 at 09:39:59AM +0000, Gilad Ben-Yossef wrote:
> Make the code more readable by using a local variable

> for commonly use expression in the AEAD part of the driver.

> 

> Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>

> ---

>  drivers/staging/ccree/ssi_aead.c | 10 ++++------

>  1 file changed, 4 insertions(+), 6 deletions(-)

> 

> diff --git a/drivers/staging/ccree/ssi_aead.c b/drivers/staging/ccree/ssi_aead.c

> index 0b5b230..f1a3976 100644

> --- a/drivers/staging/ccree/ssi_aead.c

> +++ b/drivers/staging/ccree/ssi_aead.c

> @@ -251,13 +251,11 @@ static void ssi_aead_complete(struct device *dev, void *ssi_req, void __iomem *c

>  		}

>  	} else { /*ENCRYPT*/

>  		if (unlikely(areq_ctx->is_icv_fragmented)) {

> +			u32 loc = areq->cryptlen + areq_ctx->dst_offset;


"loc" isn't a very canonical name.  At first I thought this was "pos"
or maybe "end" but now I'm thinking this is "skip"?  I don't know what
this variable is.

> +

>  			cc_copy_sg_portion(dev, areq_ctx->mac_buf,

> -					   areq_ctx->dst_sgl,

> -					   (areq->cryptlen +

> -					    areq_ctx->dst_offset),

> -					   (areq->cryptlen +

> -					    areq_ctx->dst_offset +

> -					    ctx->authsize),

> +					   areq_ctx->dst_sgl, loc,

> +					   (loc + ctx->authsize),

>  					   SSI_SG_FROM_BUF);

>  		}


regards,
dan carpenter
diff mbox series

Patch

diff --git a/drivers/staging/ccree/ssi_aead.c b/drivers/staging/ccree/ssi_aead.c
index 0b5b230..f1a3976 100644
--- a/drivers/staging/ccree/ssi_aead.c
+++ b/drivers/staging/ccree/ssi_aead.c
@@ -251,13 +251,11 @@  static void ssi_aead_complete(struct device *dev, void *ssi_req, void __iomem *c
 		}
 	} else { /*ENCRYPT*/
 		if (unlikely(areq_ctx->is_icv_fragmented)) {
+			u32 loc = areq->cryptlen + areq_ctx->dst_offset;
+
 			cc_copy_sg_portion(dev, areq_ctx->mac_buf,
-					   areq_ctx->dst_sgl,
-					   (areq->cryptlen +
-					    areq_ctx->dst_offset),
-					   (areq->cryptlen +
-					    areq_ctx->dst_offset +
-					    ctx->authsize),
+					   areq_ctx->dst_sgl, loc,
+					   (loc + ctx->authsize),
 					   SSI_SG_FROM_BUF);
 		}