From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F6D03451BA; Tue, 16 Dec 2025 11:54:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765886088; cv=none; b=MfVoTeUzmEq62VCjjTuJXEcxaBXcbLkS8QD9DOr5CG6pM2bc+NmAebmOYJHndmHEN9PY94n/u5LtpPh8HvOdboZgSfsMXI5lZLDgBBioM6rf/fbbA6HjXiqeO+yTEiXjqqtf0aD9Gm39YTi1enCXAKeqMxKmNArGTxlswoDixaI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765886088; c=relaxed/simple; bh=duwXP/iEnGDM8uPqsR3Po7pueXK78VvgjUvqFnup3FE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sBhiErLQ2KExcmHKCVK7rz6TKFCUB0/Yuh1cmgM+jkuMOuAuOGqWNg4yS3JQoMAZgvN3Uh4Dh57Mg5vZ+qi/6USrlCyA9ecniGgsE6L3uwGgSzh2uqo+vl91eso64i5mCU7OLZqYrUSLDgUrKpwkvGB5djrkdXNFv1jFGok8k/M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Yfs5vFSE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Yfs5vFSE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5EEFC4CEF1; Tue, 16 Dec 2025 11:54:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1765886088; bh=duwXP/iEnGDM8uPqsR3Po7pueXK78VvgjUvqFnup3FE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Yfs5vFSE5LTxYLaUG+I1D2bIc5GYXxEjuZFo2yFLa7xukqr+mUmEZrw5dwBbwf9uW uFKlJIyliLCV97GXLJQbjTfeEETlhSXm1uLPtyy0Lm0k4B5O2ByawhXNEgmico4GN2 C1QfANJmHnxShvlcxEr3du3Tt3Cuj84b3PHl0f3c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lorenzo Bianconi , Ben Greear , Felix Fietkau , Sasha Levin Subject: [PATCH 6.17 334/507] wifi: mt76: mt7996: grab mt76 mutex in mt7996_mac_sta_event() Date: Tue, 16 Dec 2025 12:12:55 +0100 Message-ID: <20251216111357.564801081@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251216111345.522190956@linuxfoundation.org> References: <20251216111345.522190956@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lorenzo Bianconi [ Upstream commit 5a4bcba26e9fbea87507a81ad891e70bb525014f ] Grab mt76 mutex in mt7996_mac_sta_event routine in order to rely on mt76_dereference() utility macro. Fixes: ecd72f9695e7e ("wifi: mt76: mt7996: Support MLO in mt7996_mac_sta_event()") Signed-off-by: Lorenzo Bianconi Tested-by: Ben Greear Link: https://patch.msgid.link/20251114-mt76-fix-missing-mtx-v1-1-259ebf11f654@kernel.org Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7996/main.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c index 14e90ecf925e1..04b1d5f871376 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c @@ -1140,12 +1140,15 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif, unsigned long links = sta->valid_links; struct ieee80211_link_sta *link_sta; unsigned int link_id; + int err = 0; + + mutex_lock(&dev->mt76.mutex); for_each_sta_active_link(vif, sta, link_sta, link_id) { struct ieee80211_bss_conf *link_conf; struct mt7996_sta_link *msta_link; struct mt7996_vif_link *link; - int i, err; + int i; link_conf = link_conf_dereference_protected(vif, link_id); if (!link_conf) @@ -1165,12 +1168,12 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif, link, msta_link, CONN_STATE_CONNECT, true); if (err) - return err; + goto unlock; err = mt7996_mcu_add_rate_ctrl(dev, msta_link->sta, vif, link_id, false); if (err) - return err; + goto unlock; msta_link->wcid.tx_info |= MT_WCID_TX_INFO_SET; break; @@ -1179,7 +1182,7 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif, link, msta_link, CONN_STATE_PORT_SECURE, false); if (err) - return err; + goto unlock; break; case MT76_STA_EVENT_DISASSOC: for (i = 0; i < ARRAY_SIZE(msta_link->twt.flow); i++) @@ -1199,8 +1202,10 @@ mt7996_mac_sta_event(struct mt7996_dev *dev, struct ieee80211_vif *vif, break; } } +unlock: + mutex_unlock(&dev->mt76.mutex); - return 0; + return err; } static void -- 2.51.0