From patchwork Fri Jun 7 14:40:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zijun Hu X-Patchwork-Id: 802809 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 B899E19CD13; Fri, 7 Jun 2024 14:40:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717771250; cv=none; b=klpA1AiBsskUNcgd7vOFiif1t6c2MfUMxALd+4uKOkzdJmm8TcXoD5gfVpruMIN8uINmaI4C86GFscjUtv/Nu3fB/noAa3y9CfCZNRsV9NNVYuhRp6vf/Nxe1efGJrlGeY78tTbexDk/b3X6meeIcaRaoTiMLwALE07HuHHdv1E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717771250; c=relaxed/simple; bh=z7motuO/xV2ePFvwqk4C0YMsvJQ3jt9+be8vjhJjRHM=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tKx8w2NXxWl/VKqMAYjRH5V6KOZeCInIVLngGELgE4xri5gWYqH94ejtpC3+QFudNVCgzpQRTT3Cc2gj36GIZaq19kwNPT58rghAkAaPvenTljo+I7LG9mohula1niOiXGMRX8vawOAfeE00YPsZEUI+gvit5X4xcIKEVXEQd3M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=otdJJ2oW; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="otdJJ2oW" Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 457C6rTg020987; Fri, 7 Jun 2024 14:40:39 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=6RI6aD1aRcRnRr23fMfwPOE6 rq2EmxPFWYovc/OqDYY=; b=otdJJ2oWlb11pMI2okqFeQgoxX/d0L81MOWYhGMy y5b+oLZiahqUilD1EQaJIpjRPp66El92BvigXe5uUM/RxNR0wud4lyDPg5DaihIf DpYdBscLrE9s6fuI8pizAcDj7GuIkZ/bMg+AmPUsXca7mN6Oy4AFtgeJfSL2TBkr dZ8CvBUBx9uJWTa0Dxbdpig0eyjPkvzcRCPHrlEMjuXqODtnHe3RVsYnEzG+eGWm roarQidaY4toP1v+Je4Hkd6BKWNqE0HuDpdppPpEN75q2DFe4eNC7kXMJlW+l4Q1 A48nHuZy6/CXZPNg7DEh8mg1dxjdA+RvS8Ponqyl+Q5KvA== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3yk3h2vepc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 07 Jun 2024 14:40:38 +0000 (GMT) Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 457EebD7003199 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 7 Jun 2024 14:40:37 GMT Received: from zijuhu-gv.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Fri, 7 Jun 2024 07:40:35 -0700 From: Zijun Hu To: , , , , , CC: , , Zijun Hu Subject: [PATCH v1 1/2] net: rfkill: Fix a wrongly handling error case Date: Fri, 7 Jun 2024 22:40:11 +0800 Message-ID: <1717771212-30723-2-git-send-email-quic_zijuhu@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1717771212-30723-1-git-send-email-quic_zijuhu@quicinc.com> References: <1717771212-30723-1-git-send-email-quic_zijuhu@quicinc.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: GZVKt2PTqVYl5BdnnRWTLMs1XgcBJ75P X-Proofpoint-ORIG-GUID: GZVKt2PTqVYl5BdnnRWTLMs1XgcBJ75P X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-07_08,2024-06-06_02,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 mlxscore=0 priorityscore=1501 clxscore=1015 suspectscore=0 spamscore=0 mlxlogscore=999 adultscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2406070108 Kernel API rfkill_set_hw_state_reason() does not return current combined block state when its parameter @reason is invalid, that is wrong according to its comments. Fixed by returning API required value, also use pr_err() instead of WARN() for this error case handling. Fixes: 14486c82612a ("rfkill: add a reason to the HW rfkill state") Signed-off-by: Zijun Hu --- net/rfkill/core.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/net/rfkill/core.c b/net/rfkill/core.c index c3feb4f49d09..0dc982b4fce6 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -543,13 +543,15 @@ bool rfkill_set_hw_state_reason(struct rfkill *rfkill, { unsigned long flags; bool ret, prev; + const unsigned long reason_mask = RFKILL_HARD_BLOCK_SIGNAL | + RFKILL_HARD_BLOCK_NOT_OWNER; BUG_ON(!rfkill); - if (WARN(reason & - ~(RFKILL_HARD_BLOCK_SIGNAL | RFKILL_HARD_BLOCK_NOT_OWNER), - "hw_state reason not supported: 0x%lx", reason)) - return blocked; + if (reason & ~reason_mask) { + pr_err("hw_state reason not supported: 0x%lx\n", reason); + return rfkill_blocked(rfkill); + } spin_lock_irqsave(&rfkill->lock, flags); prev = !!(rfkill->hard_block_reasons & reason);