From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.4]) (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 E7B073BCD2A; Mon, 19 Oct 2026 09:33:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792402423; cv=none; b=cC4GsXBK0mF9nHQ6RpmR4Jj2QWD1huHRpMkrGFOM3WFSb1IOFdFsEempun5JugnQigm+imnm2okOL06UzlKkIDJApSyipLgqQogJ954f+LYrKk3Py1l27hZWKsEc1qIhj8ZS/BmNVK9vkHys3/VEHTjOw2aQKqX1b+CAEvpkbew= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792402423; c=relaxed/simple; bh=XWGrvW2HiLDIksf7BHfnmbAiv3I3WvN0k/Su0wCsrio=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=U1Qe6oXFPT8VrMqm+QukGWzMMLQH7QCbU+/VimTfcDe0lBXUU9z/mRMhwKJW7nqrdTTCEXJFD1HcZKrSbJ9NgdflFLrTRzYz/TTo3aar7Dm/Iy7udYH6h5IKMsTt/oRU3rs5VUWlKsIsB0Lzh73gBE5RllFao8JGr+c/iTOyffw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=TQRl2KGu; arc=none smtp.client-ip=220.197.31.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="TQRl2KGu" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=// Nz9GXytPYhtZz3+9TgaX3FgtxnYUSmb1UPwYaHVGc=; b=TQRl2KGuZr1+dpMKVe GY6tGtlGGS2DXNI89cY5d3ZAHQ/+FW28BS/PJjYHxi8GIy6LswE4jk04sbTI34Jm lwXHwef0lS/xj2MTqwLD+cyFCT4Itvra1G9MOXK7cMuOVYxlD9Ofqcg3u5kPe3Mv e0pCFiw6yRS5PSIHzARXR9/gE= Received: from pc.localdomain (unknown []) by gzga-smtp-mtada-g0-4 (Coremail) with SMTP id _____wD3H73U49VqbIAVBQ--.320S3; Mon, 19 Oct 2026 17:33:13 +0800 (CST) From: Jiale Yao To: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Money Wang , MeiChia Chiu , Bo Jiao , StanleyYP Wang , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Jiale Yao Subject: [PATCH 1/2] wifi: mt76: mt7996: clamp VHT/HE beamforming NSS Date: Mon, 19 Oct 2026 17:33:06 +0800 Message-Id: <20261019093307.1869749-2-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261019093307.1869749-1-yaojiale02@163.com> References: <20261019093307.1869749-1-yaojiale02@163.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wD3H73U49VqbIAVBQ--.320S3 X-Coremail-Antispam: 1Uf129KBjvdXoWrKFyxXry8Gr17GFWxuw45ZFb_yoWDGrcE9F n5ZF1IqF48Kr1jyr47ta9xCrySkay8Xr1kG3y3t3saga17J39rCFy0vF1DWrsrCF17ZF17 Gr9xXFyjk3yagjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUjMKZJUUUUU== X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC8Bk-eWrV49nb2QAA3o From: Jiale Yao A peer can advertise a VHT or HE MCS map with no supported spatial streams. In that case mt7996_mcu_get_sta_nss() decrements zero and produces 255 for the beamforming configuration. Return zero when the MCS map has no supported streams. Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Jiale Yao --- drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index cd7587ce5b8a..e6243dd33c31 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -120,7 +120,7 @@ mt7996_mcu_get_sta_nss(u16 mcs_map) break; } - return nss - 1; + return nss ? nss - 1 : 0; } static void -- 2.34.1