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: 14049537 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E303CC3601E for ; Mon, 14 Apr 2025 01:40:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=zQJiN28fwUgubuHePtoHyZEwChoQ1+xaiRmHGpEGKKU=; b=EPE7uMC/+PyEnTv3QctwQve6l0 tYzHsypQbeg258XKt66W9QOlVY3YAd1cZaLJ51tzR4wG9KSVBGll1egdd0RSV3/5+5f9wfkmLZyuk VoBNlJW//wlBugTnW1DDQ5q17pgXkQEG7/xd/t9K/oI+rMb500nqpR9Qo84ElCa0/G/qHPGW958Sy WpEpRuTFa+2uunxDHapaNMXepXGoWxGp/+h8dNE+mXxwbgzANVjeQI6PWIrgo2s0IS6+GmKVoRcAk dv7VqDjgeXRoQRgTFi0sRGNY65i5pf0dbmD//7Qc4GcVty4vPgPznzRJ9ed4dnLVyFOFjYkukA/Yv LB+HwJ1g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u48nw-00000000R7d-49Si; Mon, 14 Apr 2025 01:40:08 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u48nt-00000000R63-1b4u for linux-mediatek@lists.infradead.org; Mon, 14 Apr 2025 01:40:07 +0000 X-UUID: 6047231818d111f083f2a1c9db70dae0-20250413 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:7bad2dde-8cea-4af8-aab3-ae5bac8db33c,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:e57f8f8d-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: 6047231818d111f083f2a1c9db70dae0-20250413 Received: from mtkmbs09n2.mediatek.inc [(172.21.101.94)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 269526697; Sun, 13 Apr 2025 18:39:59 -0700 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 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250413_184005_454314_8D19004A X-CRM114-Status: UNSURE ( 7.63 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org 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);