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 E2CA92F7EFC; Sat, 12 Sep 2026 14:45:38 +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=1789224339; cv=none; b=PnWWavHPUz2ADPYLRoRiqBXAWwNhDz0u9g3pBXGWSDWUNyyM88Om2pjBNVnG6jJSkRcqFK7wzh72d9/uWGZ1olaMS3sylyTWU62lhyOBlVG7ErubZwNX3XpI4Eajyy69tD22mPk5+Osi4IrlACjMNGVB9Tj4u/8J86msUfvVjss= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789224339; c=relaxed/simple; bh=VFv4Ena/DlOE898D3ITxGaec1O+vebVnwYgQIMx0LeE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QcsJqZ7wm9zklwQE87D4wqrvFGRyEzTUphnXL75jkiuZ0XxBlmAFq2eYirCa5dM5QIrk42BB1eQDe8oH39aOfotSWb/r3wWkaBdVM1ANjQIuHN84LsnEmHMVXh6DSycJhPfiuqsDz7AgyrOPLr2U+tlpDVEzQ6e24S8pRENvleM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=hgNPV5qo; 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="hgNPV5qo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E610A1F000FF; Sat, 12 Sep 2026 14:45:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789224338; bh=2DlblDBWJTpumO6pcOzeAubPQxlS/NNvxLCGbkaWrhM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=hgNPV5qolObWTFxXjKtz3qiLHysYxHvCHx3FUGHn1A6+yk8DULQO3oD8+oBQl/I2J +IU4f72h6yDknE8K+A1kWrT2hHeUJCEx8FrS7EP/x+HEirpqXkuC0ugPPYOHvCZLyO phadI50yob4Jt90C7U52lYajt3hqezOSKj3+VCFA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Felix Fietkau , Sasha Levin Subject: [PATCH 6.6 0973/1424] wifi: mt76: mt7996: set MT76_MCU_RESET before waking MCU waiters on full reset Date: Sat, 12 Sep 2026 08:56:45 +0200 Message-ID: <20260912065629.103951666@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.279695368@linuxfoundation.org> References: <20260912065607.279695368@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Felix Fietkau [ Upstream commit 6469ae71e7e5d0132c934972f628f346ad0379cd ] mt7996_mac_full_reset() called wake_up(&dev->mt76.mcu.wait) without first setting MT76_MCU_RESET. The MCU response wait condition only checks the response queue and that bit, so the wake-up released nobody: a thread blocked in an MCU command against the dead firmware (typically holding dev->mt76.mutex) stayed asleep until its multi-second timeout, stalling recovery. Set the bit before the wake-up, as mt7915 does. Fixes: 27015b6fbcca ("wifi: mt76: mt7996: enable full system reset support") Link: https://patch.msgid.link/20260722082610.2699628-7-nbd@nbd.name Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7996/mac.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c index 9270a68e6a38d..74ba07577bfd4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c @@ -1737,6 +1737,7 @@ mt7996_mac_full_reset(struct mt7996_dev *dev) phy3 = mt7996_phy3(dev); dev->recovery.hw_full_reset = true; + set_bit(MT76_MCU_RESET, &dev->mphy.state); wake_up(&dev->mt76.mcu.wait); ieee80211_stop_queues(mt76_hw(dev)); if (phy2) -- 2.53.0