A good compiler should not compile this any differently, but it seems nicer to avoid memcpy() when integer assignment will work. Signed-off-by: Eric Blake <eblake@xxxxxxxxxx> --- drivers/block/nbd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 592cfa8b765a..672fb8d1ce67 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -606,7 +606,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index) request.len = htonl(size); } handle = nbd_cmd_handle(cmd); - memcpy(request.handle, &handle, sizeof(handle)); + request.cookie = handle; trace_nbd_send_request(&request, nbd->index, blk_mq_rq_from_pdu(cmd)); @@ -732,7 +732,7 @@ static struct nbd_cmd *nbd_handle_reply(struct nbd_device *nbd, int index, u32 tag; int ret = 0; - memcpy(&handle, reply->handle, sizeof(handle)); + handle = reply->cookie; tag = nbd_handle_to_tag(handle); hwq = blk_mq_unique_tag_to_hwq(tag); if (hwq < nbd->tag_set.nr_hw_queues) -- 2.39.2