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: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c
index 3d56fb82f48a9ddf09bec5bd6a19fba713aa2557..0d35dca2e925ca7ec3f8d5b65def807bb86db2e0 100644 (file)
--- a/drivers/crypto/qat/qat_common/qat_asym_algs.c
+++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c
@@ -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);
        }