From patchwork Fri Aug 30 06:09:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aditya Kumar Singh X-Patchwork-Id: 13784312 X-Patchwork-Delegate: johannes@sipsolutions.net 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 2C8E114D6FC for ; Fri, 30 Aug 2024 06:09:42 +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=1724998184; cv=none; b=L3JNdTQFqjP8W5ugtC/Q7PpZVYHWDJXN6xVggjAttiQ6wryRbz4xCFgnClEV6kbNnavSHtLai36XnEPsdIRztv9Vyw3blwDRvXooEU8z0L9mjsK+bZcXqHf9FtJZD1T1t4Q0Ga/t9LoRlu3QtWpPq4X4vi5oVtUrrvFhu2ZCYuw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724998184; c=relaxed/simple; bh=ro+rmJp7eF+rhtuChD9dt2guwl1hshmu2MZylceZ7+0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=hti0LV2JOCjhNd4ggI+1KqpfRRDZN7PfX4X8ZSCIWb7SPOGf9s5uEh6KaPFc3UQe7Z+EAn38ZDaNlUdZ1dDLZNHf+UVUgXPmXgR1ZiXTD0yGSMPtiDq03DFlclmxWNJq97vifA3kh2BIYHQtpocnSnrS0M2Jw/ZzYH2rSk4Dldg= 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=VyuFISjN; 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="VyuFISjN" Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 47TGtepJ023072; Fri, 30 Aug 2024 06:09:39 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 8K6Cs7iasS8xugY9HCizwIeISSlLEmtr+HLzCFl0vxE=; b=VyuFISjNLbep+0xg mkVU4Al7+vG30TXh3kqM4VXOEyqlYgR0NeKo/rgMH3/XYUnvWa4WXWwNcWj3NO0/ DOyqG3gjFZSmTBYU3hveDGEW2LHaD4PGpuOq7VpSFAUJUdCsIwBs9Q3p6GY4y8fb LBkpSpgM5kbyQwQmxV1fqFW5y54Ug9Yvmfot/4AwtIjqf9evfA8NL7Qy7fU9WGEN a5DIZH5Aq8iiyx/9QjNv1sG9gdBEZCRl6J+YbVmAi3xhJqTvuvKlfPQMh55nR/zC h8xxpxAjeysFIATQH7JBH1oZRDhkKfMHbsljpyOmzadc2647VxUBfxefIrs8pv5b 6mvnhA== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 41a612nhs3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Aug 2024 06:09:39 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47U69cc8011707 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Aug 2024 06:09:38 GMT Received: from hu-adisi-blr.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 29 Aug 2024 23:09:36 -0700 From: Aditya Kumar Singh To: CC: , Aditya Kumar Singh Subject: [PATCH v4 2/8] wifi: mac80211: remove label usage in ieee80211_start_radar_detection() Date: Fri, 30 Aug 2024 11:39:12 +0530 Message-ID: <20240830060918.2418701-3-quic_adisi@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240830060918.2418701-1-quic_adisi@quicinc.com> References: <20240830060918.2418701-1-quic_adisi@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 nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: u_uuGsjcCf-bkoKVV6wbwYrRxsOyBKgP X-Proofpoint-ORIG-GUID: u_uuGsjcCf-bkoKVV6wbwYrRxsOyBKgP 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=2024-08-30_02,2024-08-29_02,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 phishscore=0 spamscore=0 mlxlogscore=999 adultscore=0 impostorscore=0 mlxscore=0 suspectscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408300043 After locks rework [1], ieee80211_start_radar_detection() function is no longer acquiring any lock as such explicitly. Hence, it is not unlocking anything as well. However, label "out_unlock" is still used which creates confusion. Also, now there is no need of goto label as such. Get rid of the goto logic and use direct return statements. [1]: https://lore.kernel.org/all/20230828135928.b1c6efffe9ad.I4aec875e25abc9ef0b5ad1e70b5747fd483fbd3c@changeid/ Signed-off-by: Aditya Kumar Singh --- net/mac80211/cfg.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 8b4f32c01701..363dc33103d6 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3468,10 +3468,8 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy, lockdep_assert_wiphy(local->hw.wiphy); - if (!list_empty(&local->roc_list) || local->scanning) { - err = -EBUSY; - goto out_unlock; - } + if (!list_empty(&local->roc_list) || local->scanning) + return -EBUSY; /* whatever, but channel contexts should not complain about that one */ sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; @@ -3480,13 +3478,12 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy, err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, IEEE80211_CHANCTX_SHARED); if (err) - goto out_unlock; + return err; wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, msecs_to_jiffies(cac_time_ms)); - out_unlock: - return err; + return 0; } static void ieee80211_end_cac(struct wiphy *wiphy,