Commit 7e958d30 authored by Kai Ye's avatar Kai Ye Committed by Herbert Xu
Browse files

crypto: hisilicon/sgl - fix the sg buf unmap 



Add data cleared operation for sge data.

Signed-off-by: default avatarKai Ye <yekai13@huawei.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4b95e17b

drivers/crypto/hisilicon/sgl.c

+13 −1
Original line number Diff line number Diff line
@@ -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;