From patchwork Tue Apr 16 22:25:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haiyang Zhang X-Patchwork-Id: 237116 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3C80D2C00E7 for ; Wed, 17 Apr 2013 07:54:41 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965534Ab3DPVyY (ORCPT ); Tue, 16 Apr 2013 17:54:24 -0400 Received: from p3plsmtps2ded03.prod.phx3.secureserver.net ([208.109.80.60]:45308 "EHLO p3plsmtps2ded03.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965448Ab3DPVyX (ORCPT ); Tue, 16 Apr 2013 17:54:23 -0400 Received: from linuxonhyperv.com ([72.167.245.219]) by p3plsmtps2ded03.prod.phx3.secureserver.net with : DED : id QluN1l00U4kklxU01luNKT; Tue, 16 Apr 2013 14:54:23 -0700 x-originating-ip: 72.167.245.219 Received: by linuxonhyperv.com (Postfix, from userid 503) id CEBF9190310; Tue, 16 Apr 2013 15:26:24 -0700 (PDT) From: Haiyang Zhang To: davem@davemloft.net, netdev@vger.kernel.org Cc: haiyangz@microsoft.com, kys@microsoft.com, olaf@aepfle.de, jasowang@redhat.com, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org Subject: [PATCH net] hyperv: Fix a compiler warning in netvsc_send() Date: Tue, 16 Apr 2013 15:25:50 -0700 Message-Id: <1366151150-14859-1-git-send-email-haiyangz@microsoft.com> X-Mailer: git-send-email 1.7.4.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Fixed: warning: cast from pointer to integer of different size The Hyper-V hosts always use 64 bit request id. The guests can have 32 or 64 bit pointers which equal to the ulong type size. So we cast it to ulong type. And, assigning 32bit integer to 64 bit variable works fine. The VMBus returns the same id in the completion packet. But the value has no effect on the host side. Reported-by: kbuild test robot Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan --- drivers/net/hyperv/netvsc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index f5f0f09..2b04804 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -522,7 +522,7 @@ int netvsc_send(struct hv_device *device, sendMessage.msg.v1_msg.send_rndis_pkt.send_buf_section_size = 0; if (packet->completion.send.send_completion) - req_id = (u64)packet; + req_id = (ulong)packet; else req_id = 0;