From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC44AC2BA83 for ; Thu, 13 Feb 2020 14:37:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A75A2073C for ; Thu, 13 Feb 2020 14:37:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=axis.com header.i=@axis.com header.b="AE1XFg/f" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727608AbgBMOhg (ORCPT ); Thu, 13 Feb 2020 09:37:36 -0500 Received: from smtp1.axis.com ([195.60.68.17]:13346 "EHLO smtp1.axis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726282AbgBMOhg (ORCPT ); Thu, 13 Feb 2020 09:37:36 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; l=766; q=dns/txt; s=axis-central1; t=1581604656; x=1613140656; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=gQ4PcXBuTs3nA7VnAfRNzRtBuwZ3e0TfEkfi5EkIwhQ=; b=AE1XFg/fbm8C4DefIwaQuGF93RZ0mOg3kYPVnGdPAQyZroUktyEZvEpc MhylXt7OuFXq28viwQ9etXvNgfRYLma02taUIJFKXHJTH17I8SIqr1+UY TO7BjZbk+KmvJdJ7DUpsuJ9ermb48TWE12t+ADPCTPYgK40IJDV/8L1XT GXkB8SQWt5OuvM0L0Y5eGjy794jGeviz8cgHsaKEVmwB2YcJgP2wlZWrY FFpQoShLx3dZrpMwb5gj5luHk6s9lqxTZE1hsr1ckuQvpx8D5aTYgvqjg FTOzWrMZ9uCTGp3ilYdwUBVfa4f0l4DP/tT4lcNkZGEqeJBWz/0XQHdzI Q==; IronPort-SDR: GelEka6EyC3QqU++DUA/rrDoXu+IArIkA3pJJAf0EuGSwxb/LSnf0DMOUVcAzm4jvPVlC+6Mey 5pIfZHQ+/v9KkbUu17E7S4S1IPPxNRmIeNJRuW0S0AuPt4idTP5xbjCMst/swAQbnn/AlDgZj7 x5v78dc69lu7WrjVtpd5+bhQNnn8KnFLqSk5TNNYB4pmqDE7ozQHvTUan+5ATR3gVh/CeQdxFb K+EucxcUFcdF5SIwjh8xY+MpuEDzMBDvjpYEneW5xlKp7qTeEX9RWxkAmH7mgYpFU8/aJ1Uiur oEo= X-IronPort-AV: E=Sophos;i="5.70,437,1574118000"; d="scan'208";a="5391023" From: Per Forlin To: , , , CC: Per Forlin , Per Forlin Subject: [PATCH net 1/2] net: dsa: tag_qca: Make sure there is headroom for tag Date: Thu, 13 Feb 2020 15:37:09 +0100 Message-ID: <20200213143710.22811-2-per.forlin@axis.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20200213143710.22811-1-per.forlin@axis.com> References: <20200213143710.22811-1-per.forlin@axis.com> MIME-Version: 1.0 Content-Type: text/plain Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Passing tag size to skb_cow_head will make sure there is enough headroom for the tag data. This change does not introduce any overhead in case there is already available headroom for tag. Signed-off-by: Per Forlin --- net/dsa/tag_qca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c index c8a128c9e5e0..70db7c909f74 100644 --- a/net/dsa/tag_qca.c +++ b/net/dsa/tag_qca.c @@ -33,7 +33,7 @@ static struct sk_buff *qca_tag_xmit(struct sk_buff *skb, struct net_device *dev) struct dsa_port *dp = dsa_slave_to_port(dev); u16 *phdr, hdr; - if (skb_cow_head(skb, 0) < 0) + if (skb_cow_head(skb, QCA_HDR_LEN) < 0) return NULL; skb_push(skb, QCA_HDR_LEN); -- 2.11.0