diff mbox series

[v2,3/9] crypto: hisilicon/sgl - Delete redundant parameter verification

Message ID 20240407080000.673435-4-huangchenghai2@huawei.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series crypto: hisilicon - Optimize and fix some driver processes | expand

Commit Message

Chenghai Huang April 7, 2024, 7:59 a.m. UTC 
The input parameter check in acc_get_sgl is redundant. The
caller has been verified once. When the check is performed for
multiple times, the performance deteriorates.

So the redundant parameter verification is deleted, and the
index verification is changed to the module entry function for
verification.

Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
---
 drivers/crypto/hisilicon/sgl.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/crypto/hisilicon/sgl.c b/drivers/crypto/hisilicon/sgl.c
index 0beca257c20b..568acd0aee3f 100644
--- a/drivers/crypto/hisilicon/sgl.c
+++ b/drivers/crypto/hisilicon/sgl.c
@@ -161,9 +161,6 @@  static struct hisi_acc_hw_sgl *acc_get_sgl(struct hisi_acc_sgl_pool *pool,
 	struct mem_block *block;
 	u32 block_index, offset;
 
-	if (!pool || !hw_sgl_dma || index >= pool->count)
-		return ERR_PTR(-EINVAL);
-
 	block = pool->mem_block;
 	block_index = index / pool->sgl_num_per_block;
 	offset = index % pool->sgl_num_per_block;
@@ -230,7 +227,7 @@  hisi_acc_sg_buf_map_to_hw_sgl(struct device *dev,
 	struct scatterlist *sg;
 	int sg_n;
 
-	if (!dev || !sgl || !pool || !hw_sgl_dma)
+	if (!dev || !sgl || !pool || !hw_sgl_dma || index >= pool->count)
 		return ERR_PTR(-EINVAL);
 
 	sg_n = sg_nents(sgl);