From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.2]) (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 AC6544B8285; Mon, 19 Oct 2026 10:11:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.2 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792404681; cv=none; b=QI2gNbeZg4ZKoKd+bL3/JwzSDakCWndtC2GwJB8VSY04jqbYPUjJx1alZ+dqAJPtNQEa9r4ohUX3E6tcCRIVpsC0YMQp4UUusgkqe56JLDeYqIqYWPGl5ucR/7bXWkI4nfJAeBYRgk2H/UELjfVb7tEXmlauf785RjoTFiz4dxo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792404681; c=relaxed/simple; bh=zVqAZWwdL91u+X2L2sSv4uMJqku/bL40qw6pKmkFwpA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=obQS3QJamhtrMLdBATX69WZCmpIGyDvLI6DetWL6XBKGGdgDbkw15HYxsgXymT4V6vg7Rh4AO5AhaS6UQ2MOy8JHEIT56HOVEIVKPmPzfrQ/hKxtJIUqFEzMdtaIBHjB1hCyqcau2nz8AZ9OxjVFYOgNsos1NJ1Ws+ds/XJIs4U= 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=HmM1/NcZ; arc=none smtp.client-ip=220.197.31.2 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="HmM1/NcZ" 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=wu IWijRtYYAq+6BiQ98mjJUGC3M/zZZs5wiFaBV7CKQ=; b=HmM1/NcZRdhsrpk1Mv Fcv3FyCerOktb9bZmHZp527joX1ZoMtCfwslgUMxPRcJMQ50eryxc0p5ERYOcRsr WdFr86uo3162damvcw81es03JFf0P5VGukwDL0z6mNfLcVG3W/qdmYvR8myUx4Xi i/94gioD1HJIQq8rt5MwX5PiE= Received: from pc.localdomain (unknown []) by gzga-smtp-mtada-g0-3 (Coremail) with SMTP id _____wD3_8Wk7NVq1VPPBA--.45843S2; Mon, 19 Oct 2026 18:10:45 +0800 (CST) From: Jiale Yao To: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , MeiChia Chiu , Bo Jiao , Howard Hsu , Peter Chiu , 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 18:10:40 +0800 Message-Id: <20261019101043.1922205-1-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:_____wD3_8Wk7NVq1VPPBA--.45843S2 X-Coremail-Antispam: 1Uf129KBjvdXoWruF1fZr1rtr4DGrW7Ar1UJrb_yoW3AFg_C3 4vyr98JF48tFWrKa17Kwn7XryIvay0gr1kCw1jy395X34xArs5WrZ7Jr1UXwsrWay8XF15 Jrn3XFyxA34fZjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7VUUtl13UUUUU== X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC7wV0rmrV7KUf4gAA37 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