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 D9E711DA62E; Sat, 12 Sep 2026 10:29:49 +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=1789208991; cv=none; b=Soj4azSNSeBPWjlCpNXYwnq+pf3+Zp7l7GDjpC7uUktvrvGE1VDvgNMNc0dcFyejJOpz9XT3D7xv7RNgOm/uAu5Ii0vtnWbyBV4/Nj0NrNq/ps+T7glKr1OCeCYm3oG62gVzjtmxKms73Y4mNklwHxolDipgZAyEmHjZb3qni7Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789208991; c=relaxed/simple; bh=8zmHBxIjLFUsSS9jSNKXvBqsaJYTQnFZzEJhtONWvic=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=r/WdjTAW5R/+eFxUTDm0iaB84qlb14OnKzXZAAmlXJtO7Rcp3evVLDnsQMoXLqr9Dk450J35OKtO0iIZtRS1FJvKFjI49lk+H3Qi7iDZZT5aUlqQwu4c0J0xSvRJhepil25HKdH4zt8UhflAqUuyif4AJ0f/WVheNC5MMB0MpkY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=EUD79g4z; 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="EUD79g4z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DEB281F000FF; Sat, 12 Sep 2026 10:29:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789208989; bh=As1pQ8+IPVX9NXYybgxT8Hj99bbBuVv5s+1zhjtPcjo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=EUD79g4zvK3JswLDdGx3p6y09snfj4wCAOS28CQKceV66LU5ExGA7WB8oKCYTfz7X oRN8a52Z2e/QsDdRvcLKYn/+w5YfFZnhrpb+ousugkZrJ/hPGA/ea5hpySpNnekiE7 Z1YgcwOGbcRP6rHsDMEyPc6AM5BvuldcKCrWphtA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Benjamin Larsson , Zhi-Jun You , Felix Fietkau , Sasha Levin Subject: [PATCH 6.18 0728/1518] wifi: mt76: mt7915: fix net_fill_forward_path for non-DBDC mt7986 Date: Sat, 12 Sep 2026 08:48:17 +0200 Message-ID: <20260912065639.902745642@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065623.398859879@linuxfoundation.org> References: <20260912065623.398859879@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: Zhi-Jun You [ Upstream commit bade0d238b60c29dafcc7da17501fa489495d6ae ] Current implementation assumes that the hardware supports DBDC or single band and binds to band0. This causes net_fill_forward_path to select the wrong queue for non-DBDC mt7986 because it binds to band1 and getting the following in dmesg: ieee80211 phy2: WA: --> drop by reaseon:1, msdu id = 0xc002 but failed! mtk_wed1: error status=00000002 ieee80211 phy2: WA: txblk 10324e00 len = 128 DW0 : 10 00 00 00 DW1 : 00 00 00 00 DW2 : 00 00 00 00 DW3 : 72 0f 94 68 DW4 : 00 00 00 00 DW5 : ff 03 00 00 DW6 : 00 00 3c 40 DW7 : 00 17 dd 14 DW8 : 79 6f 00 00 DW9 : 02 c0 00 00 DW10 : 58 c5 34 10 DW11 : 00 00 00 00 DW12 : 00 06 3e 00 DW13 : 00 00 00 80 DW14 : 10 8c 00 00 DW15 : 00 00 00 00 DW16 : 00 00 00 00 DW17 : 00 00 00 00 DW18 : 00 00 00 00 DW19 : 00 00 00 00 DW20 : 00 00 00 00 DW21 : 00 00 00 00 DW22 : 00 00 00 00 DW23 : 00 00 00 00 DW24 : 00 00 00 00 DW25 : 00 00 00 00 DW26 : 00 00 00 00 DW27 : 00 00 00 00 DW28 : 00 00 00 00 DW29 : 00 00 00 00 DW30 : 00 00 00 00 DW31 : 00 00 00 00 Fix it by using phy->mt76->band_idx for queue which works for both non-DBDC and DBDC devices. Fixes: f68d67623dec ("mt76: mt7915: add Wireless Ethernet Dispatch support") Suggested-by: Benjamin Larsson Signed-off-by: Zhi-Jun You Link: https://patch.msgid.link/20260715152113.553-2-hujy652@gmail.com Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7915/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c index 6f594677474b0..8e69df105c5ae 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c @@ -1738,7 +1738,7 @@ mt7915_net_fill_forward_path(struct ieee80211_hw *hw, path->mtk_wdma.wdma_idx = wed->wdma_idx; path->mtk_wdma.bss = mvif->mt76.idx; path->mtk_wdma.wcid = is_mt7915(&dev->mt76) ? msta->wcid.idx : 0x3ff; - path->mtk_wdma.queue = phy != &dev->phy; + path->mtk_wdma.queue = phy->mt76->band_idx; ctx->dev = NULL; -- 2.53.0