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Commit bd76ad4a authored by Salvatore Benedetto's avatar Salvatore Benedetto Committed by Herbert Xu
Browse files

crypto: qat - Stop dropping leading zeros from RSA output 



There is not need to drop leading zeros from the RSA output
operations results.

Signed-off-by: default avatarSalvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent c9839143

drivers/crypto/qat/qat_common/qat_asym_algs.c

+0 −20
Original line number Diff line number Diff line
@@ -571,32 +571,12 @@ static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp) 


	areq->dst_len = req->ctx.rsa->key_sz;

	if (req->dst_align) {

		char *ptr = req->dst_align;



		while (!(*ptr) && areq->dst_len) {

			areq->dst_len--;

			ptr++;

		}



		if (areq->dst_len != req->ctx.rsa->key_sz)

			memmove(req->dst_align, ptr, areq->dst_len);



		scatterwalk_map_and_copy(req->dst_align, areq->dst, 0,

					 areq->dst_len, 1);



		dma_free_coherent(dev, req->ctx.rsa->key_sz, req->dst_align,

				  req->out.rsa.enc.c);

	} else {

		char *ptr = sg_virt(areq->dst);



		while (!(*ptr) && areq->dst_len) {

			areq->dst_len--;

			ptr++;

		}



		if (sg_virt(areq->dst) != ptr && areq->dst_len)

			memmove(sg_virt(areq->dst), ptr, areq->dst_len);



		dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz,

				 DMA_FROM_DEVICE);

	}