From 040279e84d4e94d65cd5a9f95f9821e26c72d26e Mon Sep 17 00:00:00 2001 From: Chenghai Huang Date: Sun, 7 Apr 2024 15:59:54 +0800 Subject: [PATCH] crypto: hisilicon/sgl - Delete redundant parameter verification 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 Signed-off-by: Herbert Xu --- drivers/crypto/hisilicon/sgl.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) 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);