From patchwork Mon Apr 14 01:39:52 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mingyen Hsieh X-Patchwork-Id: 14049534 X-Patchwork-Delegate: nbd@nbd.name Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (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 868C854670 for ; Mon, 14 Apr 2025 01:40:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=60.244.123.138 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744594806; cv=none; b=fdOmYNpMrhv157j4JL4CCAw5w9AJOo2TY43JCrsmUirCscHAjxSL41BKe81xTvUL7FaxKGN6/ghhfktPYeUve/LN3LXi7a29OFnokx31ZiiOXSlIx5ZofO3vJccWPWF74ZFqTmRIh8L9Fn4WVca+/qKu2gU8+K2BUEpN72jDS54= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744594806; c=relaxed/simple; bh=+iE9O2RNjTJMi3DFWz+e6H/duEVpIgGWlGnN3zviaTg=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=uWtoI61M9R33a6s5ZZinbQLB8ZdcHFJoz1vPDf+yqSkuROrVduRZC8krReAdFZavtoJOV9ifiwsyWzAx7AaU1eQZOQkFhyuColI2w+mUzjveAnJ1NADN4od8gj+0Wp+HyVqhSExG4GEzuWfGRpRu5q7ecstPjKied2JKnC0+HJY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=A/v1c6XT; arc=none smtp.client-ip=60.244.123.138 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="A/v1c6XT" X-UUID: 5f9cc6c018d111f0aae1fd9735fae912-20250414 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=zQJiN28fwUgubuHePtoHyZEwChoQ1+xaiRmHGpEGKKU=; b=A/v1c6XTnZuiHoFPkk4aDv1VwB3YoVDLqWtG945Jwv4X/KoFII/RIYvwJvI6St1mA0GIVdVTl6D8SkswH+ldWWbaPnyy2+7J4hzvzG43y4F6IAY63MSSeb+kbLyKaMSeOIDtIqaQU7JInODdQE+LB7KZfxaxXuxcjFpCDh1dndM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.2.1,REQID:834cac41-6aca-4950-a99f-7d3dd0a61ac3,IP:0,UR L:0,TC:0,Content:0,EDM:-30,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-30 X-CID-META: VersionHash:0ef645f,CLOUDID:cf7f8f8d-f5b8-47d5-8cf3-b68fe7530c9a,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0|50,EDM:2,IP:nil ,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES: 1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 5f9cc6c018d111f0aae1fd9735fae912-20250414 Received: from mtkmbs09n1.mediatek.inc [(172.21.101.35)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 324859104; Mon, 14 Apr 2025 09:39:57 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.39; Mon, 14 Apr 2025 09:39:56 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1258.39 via Frontend Transport; Mon, 14 Apr 2025 09:39:56 +0800 From: Mingyen Hsieh To: , CC: , , , , , , , , , , , , Ming Yen Hsieh Subject: [PATCH 1/3] wifi: mt76: mt7925: prevent multiple scan commands Date: Mon, 14 Apr 2025 09:39:52 +0800 Message-ID: <20250414013954.1151774-1-mingyen.hsieh@mediatek.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Ming Yen Hsieh Add a check to ensure only one scan command is active at a time by testing the MT76_HW_SCANNING state. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh --- drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c index 71d721ded9c1..8909d76f4795 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c @@ -2791,6 +2791,9 @@ int mt7925_mcu_hw_scan(struct mt76_phy *phy, struct ieee80211_vif *vif, struct tlv *tlv; int max_len; + if (test_bit(MT76_HW_SCANNING, &phy->state)) + return -EBUSY; + max_len = sizeof(*hdr) + sizeof(*req) + sizeof(*ssid) + sizeof(*bssid) * MT7925_RNR_SCAN_MAX_BSSIDS + sizeof(*chan_info) + sizeof(*misc) + sizeof(*ie);