From patchwork Wed Dec 7 07:30:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryder Lee X-Patchwork-Id: 13066705 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 239DFC352A1 for ; Wed, 7 Dec 2022 07:31:15 +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:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=56GrzRTzL4IqyjNFK17cSt2aS1qNNZ9O5Pqe/qVyOYk=; b=CJ9wg/KMW9qdlYjZTZyhyhzSsY XlFR+ETisbaLemq0wYvBelZ+NCG9/QxmC3zJJuQWE5BtdwTl8aG0wqnRNwqih46RRwc3zzzVgSb9r UxDko1hDci6EiPCM6iZNe/6SLJNkNjkta1Js6aTlA0oOLk49/at3STQPF6HXessBlX5V9Ofoth5H0 gPvqIFz3G0yeJT/OANSf+ICzues3H0G/GZNbWq+NlaKc/uA4ptuXQSkNon9onaWp8RRZbcqbUvZF3 HNeEvpO13/pZCNhdV8K9r8w0+30xsXsgnVw7pxLXMsv2bi1uWhrFSp7HEm9Xq3PHYaGFKgcfWTABa LzBmk87w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2otO-00E0b1-Av; Wed, 07 Dec 2022 07:30:58 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2otL-00E0Zv-PQ for linux-mediatek@lists.infradead.org; Wed, 07 Dec 2022 07:30:57 +0000 X-UUID: 2a23ba770fb04355a15adb6ef6b69bf8-20221207 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=56GrzRTzL4IqyjNFK17cSt2aS1qNNZ9O5Pqe/qVyOYk=; b=sEaqE0nY8mpKGEcU4V6AB+VH0R8z9MdUDLRuv4OEiNlSllQS12zJ4Yzx5DR1dxuXdOEpO3ARHfeTJ23V0/ASSoTKZTKSqQmlX6nMlAvUnLc6eLfJX9O42y3aGrDY7pEfcp04Bs2rti6EsEpCL46xBajrvVbM2lQgyN92OGe+h/g=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.14,REQID:598040c6-cbb9-4b8b-a731-d40c18b0b534,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:95 X-CID-INFO: VERSION:1.1.14,REQID:598040c6-cbb9-4b8b-a731-d40c18b0b534,IP:0,URL :0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTION :quarantine,TS:95 X-CID-META: VersionHash:dcaaed0,CLOUDID:b874c916-b863-49f8-8228-cbdfeedd1fa4,B ulkID:221207153027DKY12FOE,BulkQuantity:2,Recheck:0,SF:38|28|17|19|48,TC:n il,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:40,QS:nil,BEC:nil,COL:0 X-UUID: 2a23ba770fb04355a15adb6ef6b69bf8-20221207 Received: from mtkmbs13n1.mediatek.inc [(172.21.101.193)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1730829164; Wed, 07 Dec 2022 00:30:45 -0700 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Wed, 7 Dec 2022 15:30:09 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Wed, 7 Dec 2022 15:30:09 +0800 From: Ryder Lee To: Felix Fietkau , CC: Lorenzo Bianconi , Shayne Chen , Evelyn Tsai , , Ryder Lee Subject: [PATCH 2/2] wifi: mt76: mt7915: fix unintended sign extension of mt7915_hw_queue_read() Date: Wed, 7 Dec 2022 15:30:05 +0800 Message-ID: <1c3c811a6f0a3ad54499729c1020e0504fea6c7d.1670396836.git.ryder.lee@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221206_233055_849054_6F2F6F27 X-CRM114-Status: GOOD ( 10.04 ) 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 In the expression "map[i].qid << 24" starts as u8, but is promoted to "signed int", then sign-extended to type "unsigned long", which is not intended. Cast to u32 to avoid the sign extension. Fixes: 776ec4e77aa6 ("mt76: mt7915: rework debugfs queue info") Signed-off-by: Ryder Lee --- drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c index a7fdcd1f3d98..5a46813a59ea 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c @@ -811,7 +811,7 @@ mt7915_hw_queue_read(struct seq_file *s, u32 size, if (val & BIT(map[i].index)) continue; - ctrl = BIT(31) | (map[i].pid << 10) | (map[i].qid << 24); + ctrl = BIT(31) | (map[i].pid << 10) | ((u32)map[i].qid << 24); mt76_wr(dev, MT_FL_Q0_CTRL, ctrl); head = mt76_get_field(dev, MT_FL_Q2_CTRL,