crypto: ccree - use std api sg_zero_buffer (e88b27c8) · Commits · 戴 / test

drivers/crypto/ccree/cc_aead.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -236,7 +236,8 @@ static void cc_aead_complete(struct device dev, void cc_req, int err)
		/* In case of payload authentication failure, MUST NOT
		* revealed the decrypted message --> zero its memory.
		*/
		cc_zero_sgl(areq->dst, areq->cryptlen);
		sg_zero_buffer(areq->dst, sg_nents(areq->dst),
		areq->cryptlen, 0);
		err = -EBADMSG;
		}
		/ENCRYPT/

+0 −21

Original line number	Diff line number	Diff line
		@@ -99,27 +99,6 @@ static unsigned int cc_get_sgl_nents(struct device *dev,
		return nents;
		}

		/**
		* cc_zero_sgl() - Zero scatter scatter list data.
		*
		* @sgl:
		*/
		void cc_zero_sgl(struct scatterlist *sgl, u32 data_len)
		{
		struct scatterlist *current_sg = sgl;
		int sg_index = 0;

		while (sg_index <= data_len) {
		if (!current_sg) {
		/* reached the end of the sgl --> just return back */
		return;
		}
		memset(sg_virt(current_sg), 0, current_sg->length);
		sg_index += current_sg->length;
		current_sg = sg_next(current_sg);
		}
		}

		/**
		* cc_copy_sg_portion() - Copy scatter list data,
		* from to_skip to end, to dest and vice versa

+0 −2

Original line number	Diff line number	Diff line
		@@ -66,6 +66,4 @@ void cc_unmap_hash_request(struct device dev, void ctx,
		void cc_copy_sg_portion(struct device dev, u8 dest, struct scatterlist *sg,
		u32 to_skip, u32 end, enum cc_sg_cpy_direct direct);

		void cc_zero_sgl(struct scatterlist *sgl, u32 data_len);

		#endif /__BUFFER_MGR_H__/