From nobody Fri Dec 19 18:53:12 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42DB9C38A2D for ; Mon, 24 Oct 2022 16:12:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233973AbiJXQM3 (ORCPT ); Mon, 24 Oct 2022 12:12:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38688 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232777AbiJXQFa (ORCPT ); Mon, 24 Oct 2022 12:05:30 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 72486264BE; Mon, 24 Oct 2022 07:58:30 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 1BF06B8164B; Mon, 24 Oct 2022 12:20:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63155C433D6; Mon, 24 Oct 2022 12:20:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666614021; bh=JTuqz7XI2XwjVG0MMTdnj7U3jbDzFHngQ8w9OjJuMJM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r7Yym9zaMJtdAqE69NhWf4XMsZh+0EtmfLILz54tdpvrz7JLofO0C2d6t9by3C2Q4 uEESPq6lPGvdWlFDDeNVDqwBljaiZRGySReHm4mprVzy5xSLJgwHbnvBMygY5cZ3ga 6zvOYRexv4O+1XgMPvph05y6wpuhL7DDcjTcEz74= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hari Chandrakanthan , Johannes Berg , Sasha Levin Subject: [PATCH 5.10 102/390] wifi: mac80211: allow bw change during channel switch in mesh Date: Mon, 24 Oct 2022 13:28:19 +0200 Message-Id: <20221024113027.012358409@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113022.510008560@linuxfoundation.org> References: <20221024113022.510008560@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Hari Chandrakanthan [ Upstream commit 6b75f133fe05c36c52d691ff21545d5757fff721 ] >From 'IEEE Std 802.11-2020 section 11.8.8.4.1': The mesh channel switch may be triggered by the need to avoid interference to a detected radar signal, or to reassign mesh STA channels to ensure the MBSS connectivity. A 20/40 MHz MBSS may be changed to a 20 MHz MBSS and a 20 MHz MBSS may be changed to a 20/40 MHz MBSS. Since the standard allows the change of bandwidth during the channel switch in mesh, remove the bandwidth check present in ieee80211_set_csa_beacon. Fixes: c6da674aff94 ("{nl,cfg,mac}80211: enable the triggering of CSA frame= in mesh") Signed-off-by: Hari Chandrakanthan Link: https://lore.kernel.org/r/1658903549-21218-1-git-send-email-quic_hari= c@quicinc.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/cfg.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 8010967a6874..c6a7f1c99abc 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3357,9 +3357,6 @@ static int ieee80211_set_csa_beacon(struct ieee80211_= sub_if_data *sdata, case NL80211_IFTYPE_MESH_POINT: { struct ieee80211_if_mesh *ifmsh =3D &sdata->u.mesh; =20 - if (params->chandef.width !=3D sdata->vif.bss_conf.chandef.width) - return -EINVAL; - /* changes into another band are not supported */ if (sdata->vif.bss_conf.chandef.chan->band !=3D params->chandef.chan->band) --=20 2.35.1