From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) (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 230864B44DB; Mon, 19 Oct 2026 09:33:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.2 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792402427; cv=none; b=CJM1+HdIa6mRbNQuZIww7cfMR0S7U5xHG1TKFmNSPyohBaUB2wOf6FTMuhj/bNTTu3+5ictJvcFsJlBRFoR+DYKlZ3m/8HRg6zG+ckdpiQ+BtJeIoNdezmYaGXMy+KxHq2Qer+uK0HNWvK+QAUJODDBHfoiS/hA/JbVE7eudei4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792402427; c=relaxed/simple; bh=ZsDB7UVL/LmloWNnVluFsvsrHlfyNh8c7eT+F4/l8Ng=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=EeZT69e4ilvCNcp+noXsTMSup3tlWrIvZ8Qma8FJeUJGDcjK/Cr9A0t+AgkzXBvstKKeMSwoaNu8Allpe7y10G6YPpvpOrMxjy6La12xjghjgQkjyMBes4Qu1K+FVBYpu8pqxy6BMAWJh00tcj/X4AchBB5gl4T3GehHt+v90xw= 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=LI7XT3pK; arc=none smtp.client-ip=117.135.210.2 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="LI7XT3pK" 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=VB omzRk9uUTgk753tHBnspcaDlOQMppIF8orQT9r2mI=; b=LI7XT3pKwH1BQw30Gm 3Mpv/Wk+Ex+kdYYifhKsQM2TjcXW74AaQfqYDZ2GXm0fCyRT9Y3kh02uYq2TNTiC 4TsAWS9pihgdCBa4/MjYOJGi4FksYb+W6fVIAXrGbOyy3KbIN7gcRRpD6atTW/PY fOvFWpU9ZxE/u0cZEAnxzstEI= Received: from pc.localdomain (unknown []) by gzga-smtp-mtada-g0-4 (Coremail) with SMTP id _____wD3H73U49VqbIAVBQ--.320S2; Mon, 19 Oct 2026 17:33:11 +0800 (CST) From: Jiale Yao To: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , MeiChia Chiu , Howard Hsu , 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 0/2] wifi: mt76: mt7996: clamp beamforming NSS Date: Mon, 19 Oct 2026 17:33:05 +0800 Message-Id: <20261019093307.1869749-1-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 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--.320S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrKFyrurWrJr1UZFyxJw4UCFg_yoW3trg_C3 4vyr98JF48tFWrKF17Kwn7XryI9ay8Kr1DG34Yy398Xw1xJrs3WrZ7Jr17XwsrWay8XF13 Jrn3XFyxA34SvjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUjLL07UUUUU== X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC7xc+eGrV49dfWAAA3y From: Jiale Yao The mt7996 beamforming configuration converts a peer maximum NSS to a zero-based column count. A peer may report no receive streams for a VHT, HE, or EHT MCS range. Decrementing that zero value underflows and can send an invalid beamforming configuration to firmware. Patch 1 fixes the shared VHT and HE MCS-map conversion. Patch 2 fixes the corresponding EHT conversions for 80, 160, and 320 MHz operation. The series was checked with scripts/checkpatch.pl, and each patch was checked for application against the common base. Jiale Yao (2): wifi: mt76: mt7996: clamp VHT/HE beamforming NSS wifi: mt76: mt7996: clamp EHT beamforming NSS drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) -- 2.34.1