diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/hisilicon/sgl.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/crypto/hisilicon/sgl.c b/drivers/crypto/hisilicon/sgl.c index 7f11e41385ae..057273769f26 100644 --- a/drivers/crypto/hisilicon/sgl.c +++ b/drivers/crypto/hisilicon/sgl.c @@ -192,6 +192,18 @@ static void update_hw_sgl_sum_sge(struct hisi_acc_hw_sgl *hw_sgl, u16 sum) hw_sgl->entry_sum_in_chain = cpu_to_le16(sum); } +static void clear_hw_sgl_sge(struct hisi_acc_hw_sgl *hw_sgl) +{ + struct acc_hw_sge *hw_sge = hw_sgl->sge_entries; + int i; + + for (i = 0; i < le16_to_cpu(hw_sgl->entry_sum_in_sgl); i++) { + hw_sge[i].page_ctrl = NULL; + hw_sge[i].buf = 0; + hw_sge[i].len = 0; + } +} + /** * hisi_acc_sg_buf_map_to_hw_sgl - Map a scatterlist to a hw sgl. * @dev: The device which hw sgl belongs to. @@ -269,7 +281,7 @@ void hisi_acc_sg_buf_unmap(struct device *dev, struct scatterlist *sgl, return; dma_unmap_sg(dev, sgl, sg_nents(sgl), DMA_BIDIRECTIONAL); - + clear_hw_sgl_sge(hw_sgl); hw_sgl->entry_sum_in_chain = 0; hw_sgl->entry_sum_in_sgl = 0; hw_sgl->entry_length_in_sgl = 0; |