crypto: aspeed - Use memcpy_from_sglist() in aspeed_ahash_dma_prepare()

Replace scatterwalk_map_and_copy() with memcpy_from_sglist() in
aspeed_ahash_dma_prepare(). The latter provides a simpler interface
without requiring a direction parameter, making the code easier to
read and less error-prone.

No functional change intended.

Signed-off-by: Paul Louvel <paul.louvel@bootlin.com>
Reviewed-by: Neal Liu <neal_liu@aspeedtech.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/aspeed/aspeed-hace-hash.c b/drivers/crypto/aspeed/aspeed-hace-hash.c
index f8f37c9d5f3c34631a863f9c47fc839dcb32513f..6f0d03cfbefcd82dcf07451f3896be12f3cf94ca 100644 (file)
--- a/drivers/crypto/aspeed/aspeed-hace-hash.c
+++ b/drivers/crypto/aspeed/aspeed-hace-hash.c
@@ -182,8 +182,7 @@ static int aspeed_ahash_dma_prepare(struct aspeed_hace_dev *hace_dev)
                        final = true;
        } else
                length -= remain;
-       scatterwalk_map_and_copy(hash_engine->ahash_src_addr, rctx->src_sg,
-                                rctx->offset, length, 0);
+       memcpy_from_sglist(hash_engine->ahash_src_addr, rctx->src_sg, rctx->offset, length);
        aspeed_ahash_update_counter(rctx, length);
        if (final)
                length += aspeed_ahash_fill_padding(