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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 7996DC43381 for ; Mon, 4 Mar 2019 08:48:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 407FC20823 for ; Mon, 4 Mar 2019 08:48:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551689280; bh=lWzv4KIiuO4JjQkk6CCDbC3KTRS6lfxJE/izDEKUkVM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=udgpdiVZD3prMAAcKlx+LflhgP/3tdfh9l0LjZZfmA/EJFdA7vLWq7yVAZ+uo9b7w GuzbBbrY8Q07Haoq4jzvPfUrRkKLFA5mSCKpyT/x8TOr/9d5gQfH/6pr35yxJYKtry HAihaCOw5DM7bGiCuJ6cKzY6WF8XxkOpsQzNWpUI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726581AbfCDIXZ (ORCPT ); Mon, 4 Mar 2019 03:23:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:39354 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726560AbfCDIXZ (ORCPT ); Mon, 4 Mar 2019 03:23:25 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 12F9A20823; Mon, 4 Mar 2019 08:23:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1551687804; bh=lWzv4KIiuO4JjQkk6CCDbC3KTRS6lfxJE/izDEKUkVM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yuRI3sGYiYcvQpv2xr3jGXd+u2BmEUplrSr8W4iA/+DWZtmIT+48jUEtt21H+S0w4 fdDvdqJ/82ZYHu+5PCvsPx5kUPiZh5UoZLcts7L+oscp5S790XzGo+pqlwcX7ZCGJd yDIqO7mYMokhlW4jcwW6kgSir3Lf8wfeaI3keelY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johannes Berg , Johannes Berg , Mathieu Malaterre , Sasha Levin Subject: [PATCH 4.9 25/32] mac80211: Add attribute aligned(2) to struct action Date: Mon, 4 Mar 2019 09:22:13 +0100 Message-Id: <20190304081604.135644789@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190304081602.307094059@linuxfoundation.org> References: <20190304081602.307094059@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 7c53eb5d87bc21464da4268c3c0c47457b6d9c9b ] During refactor in commit 9e478066eae4 ("mac80211: fix MU-MIMO follow-MAC mode") a new struct 'action' was declared with packed attribute as: struct { struct ieee80211_hdr_3addr hdr; u8 category; u8 action_code; } __packed action; But since struct 'ieee80211_hdr_3addr' is declared with an aligned keyword as: struct ieee80211_hdr { __le16 frame_control; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; __le16 seq_ctrl; u8 addr4[ETH_ALEN]; } __packed __aligned(2); Solve the ambiguity of placing aligned structure in a packed one by adding the aligned(2) attribute to struct 'action'. This removes the following warning (W=1): net/mac80211/rx.c:234:2: warning: alignment 1 of 'struct ' is less than 2 [-Wpacked-not-aligned] Cc: Johannes Berg Suggested-by: Johannes Berg Signed-off-by: Mathieu Malaterre Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 7013b37637556..23f6c8baae951 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -217,7 +217,7 @@ static void ieee80211_handle_mu_mimo_mon(struct ieee80211_sub_if_data *sdata, struct ieee80211_hdr_3addr hdr; u8 category; u8 action_code; - } __packed action; + } __packed __aligned(2) action; if (!sdata) return; -- 2.19.1