From patchwork Fri Jul 3 08:15:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 11641241 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2262714E3 for ; Fri, 3 Jul 2020 08:17:05 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EE679207FF for ; Fri, 3 Jul 2020 08:17:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="B0Nkg13f"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="yAPXJ+Fj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EE679207FF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=22TPcjva+CWtqx+nnsZ2CtxhXyhZoYm9svXlmNuX1Uc=; b=B0Nkg13fx1rOwnqJWfpT9Vl2w hsUvHIzv+ALQuLDWX2lpkLQXlrpRM59AL+DIv9UkE9PDqMv0G71sxNj4+nr6kQSueH3H7gDeCggzS ajextU/dEXwvcM08l2xtyRPNEG6PFifBx5nl5et0uZueBQjKw20bdLEiOXzFVOekX/+Yr4O96JlUm UcZmmLqIslVMANNubC+gv88NxHO3BbztIgpnsOwWafZ1UdSFnfCDX7Dko9hM5FZMYYMjGhLtT0EOM foVX7zevzNUgPkrAzMcVt1WENbNaN3DdNlfP+wXidBXN3BwEAj8J6U2jr/xplFn9IKp7QV93aIh2w Z0Tz034gQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jrGsM-0006Bh-LG; Fri, 03 Jul 2020 08:16:50 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jrGsD-00062b-85 for linux-mediatek@lists.infradead.org; Fri, 03 Jul 2020 08:16:42 +0000 Received: from lore-desk.lan (unknown [151.48.138.186]) (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 450EC207FF; Fri, 3 Jul 2020 08:16:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593764200; bh=PHxZI6kQT92TJsy5aJifbIG/s34Ng7bluHs6Q1I1JqE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yAPXJ+FjYcLZpzmKBc38EhSbW1BSXIHWJdz3P2YFTFlko4IP+UzCCtNz6bhuYbjDU Xz6+t5Z2jHFQWmHOfp7nzwzo0WJn8hKMkCO7+Qa8n0hTX7aQGgCPxMQUjIzP/2zCM9 E7A1VpHmlPcLfqNuQfxKr0e6acJyQaL9JwvgPTa8= From: Lorenzo Bianconi To: nbd@nbd.name Subject: [PATCH v2 11/22] mt76: mt7615: add missing lock in mt7615_regd_notifier Date: Fri, 3 Jul 2020 10:15:50 +0200 Message-Id: X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200703_041641_384572_2AFCA2B5 X-CRM114-Status: UNSURE ( 8.47 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mediatek@lists.infradead.org, lorenzo.bianconi@redhat.com, ryder.lee@mediatek.com, linux-wireless@vger.kernel.org, sean.wang@mediatek.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org Make sure to run mt7615_dfs_init_radar_detector in mt7615_regd_notifier holding mt76 mutex in order to avoid races and set the device in full power Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/mt7615/init.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c index c22878b82540..59c59e8630c1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -294,7 +294,9 @@ mt7615_regd_notifier(struct wiphy *wiphy, if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR)) return; + mt7615_mutex_acquire(dev); mt7615_dfs_init_radar_detector(phy); + mt7615_mutex_release(dev); } static void