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 7CBB9345CCB; Tue, 16 Dec 2025 11:54:55 +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=1765886095; cv=none; b=ShO5U2AK6sHfTN9d5fr4GnmRFZW9j+6+l4MwwJkGLK9/uLpGrUit6igz/Oe8AVdKks3ElqiZ4jTtW9pUcD+f7pKeoXUEYCZrgK8T/anL37GpZItCfvPxkZ6FtCKEjo9edKfMtDExcTTieBXVp86ADMPLTzOzsm3+tF0/Gi2FG20= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765886095; c=relaxed/simple; bh=Vox0+3yn1+b/itjMQEzv3uaow+fg/tzExicVLD9HpYs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YLhMXR+8CU94l5LBSXD7l75DvECaPKWf9i1OcZx8ZiB6/2QDEMAD1jkkoU2TBJwhJCEOE+U9SkH0JqWgIkh92nyinJ3a8+YoWh4KDZV7/h/dM9JFCttQRfEaywKr5PghsXjVtpg8nGRaNRVA/jVkdziTLdaO9g2YYUQy1V7NTR0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=M5NyeBma; 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="M5NyeBma" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E0A3FC4CEF1; Tue, 16 Dec 2025 11:54:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1765886095; bh=Vox0+3yn1+b/itjMQEzv3uaow+fg/tzExicVLD9HpYs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=M5NyeBmaA++qyV23+VJDmQqdVcEjp56FYnXEATR1d/y7TvR5Q5hXipyHPcY926Kej Wzg7yl2mIWWsShv/MtDLE8Q/Ya6hFfvhs+OcWDbgE+ni79zR7J76XIwYeuh5hHMfPR 5Bw/RNxpBAlkFguTw1L1XvQRbrfvNAbhnGeo6t2A= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lorenzo Bianconi , Felix Fietkau , Sasha Levin Subject: [PATCH 6.17 336/507] wifi: mt76: mt7996: Add missing locking in mt7996_mac_sta_rc_work() Date: Tue, 16 Dec 2025 12:12:57 +0100 Message-ID: <20251216111357.636215935@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 7545551631fa63101f97974f49ac0b564814f703 ] Grab the mt76 mutex running mt7996_mac_sta_rc_work() since it is required by mt7996_mcu_add_rate_ctrl routine. Fixes: 28d519d0d493a ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl_fixed()") Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20251118-mt7996-rc-work-missing-mtx-v1-1-0739c493a6cb@kernel.org Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7996/mac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c index b0092794f37c9..4662111ad064d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c @@ -2338,6 +2338,8 @@ void mt7996_mac_sta_rc_work(struct work_struct *work) LIST_HEAD(list); u32 changed; + mutex_lock(&dev->mt76.mutex); + spin_lock_bh(&dev->mt76.sta_poll_lock); list_splice_init(&dev->sta_rc_list, &list); @@ -2370,6 +2372,8 @@ void mt7996_mac_sta_rc_work(struct work_struct *work) } spin_unlock_bh(&dev->mt76.sta_poll_lock); + + mutex_unlock(&dev->mt76.mutex); } void mt7996_mac_work(struct work_struct *work) -- 2.51.0