From patchwork Wed Sep 12 03:17:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 10596701 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8F200920 for ; Wed, 12 Sep 2018 03:19:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7D84529BEF for ; Wed, 12 Sep 2018 03:19:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 71D2429BF8; Wed, 12 Sep 2018 03:19:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F04029BEF for ; Wed, 12 Sep 2018 03:19:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727942AbeILIT7 (ORCPT ); Wed, 12 Sep 2018 04:19:59 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:40102 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726027AbeILIT6 (ORCPT ); Wed, 12 Sep 2018 04:19:58 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2F1D440216F7; Wed, 12 Sep 2018 03:17:34 +0000 (UTC) Received: from jason-ThinkPad-T450s.redhat.com (ovpn-12-130.pek2.redhat.com [10.72.12.130]) by smtp.corp.redhat.com (Postfix) with ESMTP id 404902027EA4; Wed, 12 Sep 2018 03:17:30 +0000 (UTC) From: Jason Wang To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, mst@redhat.com, jasowang@redhat.com Subject: [PATCH net-next V2 02/11] tuntap: switch to use XDP_PACKET_HEADROOM Date: Wed, 12 Sep 2018 11:17:00 +0800 Message-Id: <20180912031709.14112-3-jasowang@redhat.com> In-Reply-To: <20180912031709.14112-1-jasowang@redhat.com> References: <20180912031709.14112-1-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Wed, 12 Sep 2018 03:17:34 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Wed, 12 Sep 2018 03:17:34 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'jasowang@redhat.com' RCPT:'' Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Acked-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- drivers/net/tun.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 2c548bd20393..d3677a544b56 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -113,7 +113,6 @@ do { \ } while (0) #endif -#define TUN_HEADROOM 256 #define TUN_RX_PAD (NET_IP_ALIGN + NET_SKB_PAD) /* TUN device flags */ @@ -1654,7 +1653,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun, rcu_read_lock(); xdp_prog = rcu_dereference(tun->xdp_prog); if (xdp_prog) - pad += TUN_HEADROOM; + pad += XDP_PACKET_HEADROOM; buflen += SKB_DATA_ALIGN(len + pad); rcu_read_unlock();