From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 EFDEB4E3ED4; Fri, 9 Oct 2026 14:20:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791555649; cv=none; b=e6i3q14ORWQ5iSZERsBSLKiD8IQItH9Bwp2vxm/uEWB3I6L8GHTymFso22RYEXacL6tZ/39L3JYM2tda8ZDAYyV3qJdV/bgsl50VeZYW2EkBVyIPZYj5HAnytFpXH1OQF9TYQNd+LzuX1xO9alXx308kLTFvg9qRncBKVD47S4s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791555649; c=relaxed/simple; bh=nBZinOeuL/1r4xIAo1e6GEGzanbAQjj3uITv2vOc/lk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=O8VQ/NFF7EfjMuXDlQue0bxQnME+lq+GYQpmXOnvnurhNv8X9Sb/D5FK2Kb4zojBuM5ral2fQt1TkgzUyfue3zrvVbPzGNbdx6RnBL81UAmHjgOZ6YU7EOh3MEjwVEPLlu963Sx8G2uG9oKeAuHcH6r9nn1o7NiCnMI3AQp2hQE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ATwWRWtW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ATwWRWtW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5496E1F000FF; Fri, 9 Oct 2026 14:20:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791555642; bh=BYp5M1oUVR3H2E/nxkva2mZwQNwEEPMhgMR93bnWr3s=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=ATwWRWtWNVVX2SbF/r11APxisj9sSZtSKMSqZP3eOOfcFA0g4F7h6x4N6zADZQOnv MqD3zjmzZBml19LpfOQ5Xbqy4iwHFaaAE61JuCEXkj8hkkAPERbGXx9573a24IjFBx Zww7a7PUbfWUTU/GnEq6OB3AXEKENDg0gPUCs05I= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicolas Escande , Rameshkumar Sundaram , Baochen Qiang , Jeff Johnson , Sasha Levin Subject: [PATCH 6.18 070/403] wifi: ath11k: reset ar->num_stations on hardware start Date: Fri, 9 Oct 2026 16:07:11 +0200 Message-ID: <20261009140953.733489761@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261009140952.119038291@linuxfoundation.org> References: <20261009140952.119038291@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 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nicolas Escande [ Upstream commit 7e0ad05ebc72fffba2bdf2400400902d94ed7272 ] When (multiple) hw restart occurs, we end up in a situation where we cannot accept new stations / mesh peers. This seems to be the 'num_stations' in 'struct ath11k' that did not get reset properly in this case. In ath11k_mac_op_start(), it was indeed the only accounting var that did not get reset so let's clear it too. This avoids problems like those: [1248828.088023] WARNING: CPU: 0 PID: 12281 at net/mac80211/util.c:1682 ieee80211_reconfig_stations+0x98/0xc0 [1248828.088115] Call trace: [1248828.088116] ieee80211_reconfig_stations+0x98/0xc0 (P) [1248828.088119] ieee80211_reconfig+0x774/0x1438 [1248828.088123] ieee80211_restart_work+0x10c/0x178 [1248828.088127] process_one_work+0x178/0x3c0 [1248828.088130] worker_thread+0x280/0x440 [1248828.088133] kthread+0xe0/0xf8 [1248828.088137] ret_from_fork+0x10/0x20 [1248828.088141] ---[ end trace 0000000000000000 ]--- [1248836.686604] ath11k_pci 0000:04:00.0: refusing to associate station: too many connected already (128) [1248836.686609] ath11k_pci 0000:04:00.0: Failed to add station: xx:xx:xx:xx:xx:xx for VDEV: 1 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1 Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Signed-off-by: Nicolas Escande Reviewed-by: Rameshkumar Sundaram Reviewed-by: Baochen Qiang Link: https://patch.msgid.link/20260812-num-station-v3-1-871d20e043f6@gmail.com Signed-off-by: Jeff Johnson Signed-off-by: Sasha Levin --- drivers/net/wireless/ath/ath11k/mac.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index c97c07a7ef0fd..60ffecd52280e 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -6402,6 +6402,7 @@ static int ath11k_mac_op_start(struct ieee80211_hw *hw) ar->num_started_vdevs = 0; ar->num_created_vdevs = 0; ar->num_peers = 0; + ar->num_stations = 0; ar->allocated_vdev_map = 0; /* Configure monitor status ring with default rx_filter to get rx status -- 2.53.0