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[2620:137:e000::3:7]) by mx.google.com with ESMTPS id z16-20020a656650000000b0056a1ea34f45si8071326pgv.670.2023.09.18.11.14.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Sep 2023 11:14:55 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=nCy9qke8; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 6F01880309EA; Mon, 18 Sep 2023 04:12:54 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241346AbjIRLMU (ORCPT + 57 others); Mon, 18 Sep 2023 07:12:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32772 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239738AbjIRLLq (ORCPT ); Mon, 18 Sep 2023 07:11:46 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E50B294 for ; Mon, 18 Sep 2023 04:11:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695035500; x=1726571500; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=awU3IC5lzIZEWuNaKximpASNqq2AJJgi98GItNMgIzg=; b=nCy9qke8DAW+QRoQSzBHmswRkiJoc12+sZVI33ZFfBuN6/HmZXIl7fmO xD/W65tUZaDH/kLBoaVGkVELLsvMT8AffL6cO/f3O1nyVLDHl0EJhrbuX YPBSE31w6GQgmJRwSblvBbdfidc7TdZo5j2VSZEhb76IWKl2Hi1IsjTRE s3HTbeSSBBkFjD9/ff6Kvgbbmhsg8vDJ1mFGT4KutqJJjX3P4q50Oj3H7 jAGUdcW51KewqCZH1SDIxN8/HYQPyc0HKjGYz1MVXvK0BHTtvzpW0tMtN vWzvfjy8udwYeS+OenPfbbXn8bY4XHnC8WnqIofWptRpkTDCMaMUnbezX g==; X-IronPort-AV: E=McAfee;i="6600,9927,10836"; a="378535748" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="378535748" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 04:11:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10836"; a="861025280" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="861025280" Received: from guyarad-mobl.ger.corp.intel.com (HELO ggreenma-mobl2.lan) ([10.214.215.14]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 04:11:30 -0700 From: gregory.greenman@intel.com To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Johannes Berg , Gregory Greenman Subject: [PATCH 05/18] wifi: mac80211: allow for_each_sta_active_link() under RCU Date: Mon, 18 Sep 2023 14:10:50 +0300 Message-Id: <20230918140607.25b2a5c0fd63.I52ef396d693e0e381a73eade06850137d8900948@changeid> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230918111103.435195-1-gregory.greenman@intel.com> References: <20230918111103.435195-1-gregory.greenman@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Mon, 18 Sep 2023 04:12:54 -0700 (PDT) From: Johannes Berg Since we only use this to protect the dereference and with STA mutex, we can also allow this with just RCU. Signed-off-by: Johannes Berg Signed-off-by: Gregory Greenman --- include/net/mac80211.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 7aea4787e62b..be3d74942a4a 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -2393,7 +2393,7 @@ static inline bool lockdep_sta_mutex_held(struct ieee80211_sta *pubsta) for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) \ if ((!(vif)->active_links || \ (vif)->active_links & BIT(link_id)) && \ - ((link_sta) = link_sta_dereference_protected(sta, link_id))) + ((link_sta) = link_sta_dereference_check(sta, link_id))) /** * enum sta_notify_cmd - sta notify command -- 2.38.1