Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp3036612ybe; Sun, 8 Sep 2019 05:55:49 -0700 (PDT) X-Google-Smtp-Source: APXvYqytrTGThOComIwrOpbKVH+ZFjP5VR5VaUuiWeJN7oX/9e8++v5SBYLCuKzgDKEvVKhmJoju X-Received: by 2002:a17:90b:34a:: with SMTP id fh10mr11956045pjb.35.1567947349240; Sun, 08 Sep 2019 05:55:49 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1567947349; cv=none; d=google.com; s=arc-20160816; b=pRWXBXwoiN1wcC5ISKAkw/mF7W5j+o7yJhoqaVZVjTRel3l7VlcnO8VRQKJwVq/IgY 4cAI20eLOuE01rckibbytzTIVWR39Mdf+8cIrsXu6yLg+r5qdK+g7wM5nDHDRNvJ3Jim i+sd+WeCfpLCXd9rltDBDcC59YgpSaVpMXE0webUFhHIG1T+wwBsvRmE/wJHEw4tyhvM DmFLggUgwAw4DVnxX97hSASCiwBcUXRfzprO6p9QhFVclEM9a4PN79YhxPpEgSWKFsMJ w/8LuqvKUN5ILUPenAhouJrzgPE6te7TFSJBNjG4lHyWER+puMM3JcGCzGeRdbQPr9A2 PjQw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject:dkim-signature; bh=o1+VAU3r1wnOC38/TQf5t+G28XJ3eh9QIfBuXGwopyo=; b=K4lHeHw5P8x1rm7uBBVq5eYX78ktjo7fysiS/rxAl8wwZKbfYw938qMK73rk4yVwwP bmJbOImMpcw10PHZSXo/ZzKTEb+rQDjbeneRM+s30zk4QIyQFDPBZWu+w74k9xqUPlte 5w4A12Dh5V9VBc1q63HqFZipPsVBTz2aOiEJuPY6y3roaEpJkLcTGAKWqHv3qaxn7MXu kgaWnAswP0NIVK0C5HTTiXIpyxwjpAXVfL9M3j8HHPd/dMgGXVfj+dOdWA0vDNauweNn gGeybqEebxyorbniQzusU4NeTE8/Mj1nS4Fr2vaKE6x7eltSiuHoj437Uhg3p6KyGxwq IsuQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=veoIEBwm; spf=pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 6si9952816pgt.13.2019.09.08.05.55.34; Sun, 08 Sep 2019 05:55:49 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=veoIEBwm; spf=pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726164AbfIHAzV (ORCPT + 99 others); Sat, 7 Sep 2019 20:55:21 -0400 Received: from mail-pf1-f172.google.com ([209.85.210.172]:38861 "EHLO mail-pf1-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726060AbfIHAzV (ORCPT ); Sat, 7 Sep 2019 20:55:21 -0400 Received: by mail-pf1-f172.google.com with SMTP id h195so6903573pfe.5 for ; Sat, 07 Sep 2019 17:55:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=o1+VAU3r1wnOC38/TQf5t+G28XJ3eh9QIfBuXGwopyo=; b=veoIEBwmywO6uWa+MCQuzqJEzevrIDRDEx8NkkUWvN4LkFRUBvICEkeembqVhOaG8x VGZRen20W0p+WKWdljuHPIchSR5FtI08sxIJ/6cwI60fPBaTeo13N6ciCSV7ic4SQCiI VIH1vP5VOPaQi4RCzEWrDvqhwF1k1bniUNotHD42yqDwE94RPh70kNDgqINyXmzDiY3n OQ7P+IaGMzJIuhbXNuUxc6ucwnOxpsmrNfiHMmuz7c07dUxHRsy2o2m84s3sQOhD38aY iWgqcrRkZm6YZSe136yLhy12N9wImM8ITsZ6f1sicecSupExEElJ9ed79IJQcCBYsXqB /ocA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=o1+VAU3r1wnOC38/TQf5t+G28XJ3eh9QIfBuXGwopyo=; b=RF7RrDMyTIewUclsc1I9WcGTFeztpMOSYcDVH3682RBkevx/VhkLgrf1j5FIOVffQw IHjiyV/8ZwfwOMhrquGHktLJLnZiV3nYC1ioa+2OITwmhFdQGuJJByLsg8k7116sDyLK wjJZZBqLKMFrTyEPUGXH5MIxtwAfPeSf16v0NJbqCCTBB1NVG651F/eFJkg66TLGfeBx g+vfStteI9F20F/9p9xxR2DzzJDlrVGufSVloJUVpJ3vG5eQG15OqL0JHIASBfSn0N8Q KR0vv4EJQPp+9O9dlGb/yhxTLNdUoUKdI1GlvKlwZmX3F4r1o/TD4vcaCiLnwohlFpii Kq8Q== X-Gm-Message-State: APjAAAUNTesAZdkJSx1ktJS3DUT/Kb3GFZ+AUW2DWsjZ6eQXoOJxTVjZ Nn760HYhNnfOJPz7Kgn3LY1qtb6q X-Received: by 2002:aa7:8e08:: with SMTP id c8mr15259685pfr.238.1567904120162; Sat, 07 Sep 2019 17:55:20 -0700 (PDT) Received: from ?IPv6:2409:11:53c0:1f00:6859:dd0a:96bf:4dec? ([2409:11:53c0:1f00:6859:dd0a:96bf:4dec]) by smtp.gmail.com with ESMTPSA id p1sm1346915pfb.112.2019.09.07.17.55.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 07 Sep 2019 17:55:19 -0700 (PDT) Subject: Re: [bug report] nl80211: Fix possible Spectre-v1 for CQM RSSI thresholds To: Dan Carpenter Cc: linux-wireless@vger.kernel.org References: <20190907130234.GA32057@mwanda> From: Masashi Honma Message-ID: <4ec1ee46-d178-15e4-4918-f9a516ce23d2@gmail.com> Date: Sun, 8 Sep 2019 09:55:17 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190907130234.GA32057@mwanda> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 2019/09/07 22:02, Dan Carpenter wrote: > The patch 1222a1601488: "nl80211: Fix possible Spectre-v1 for CQM > RSSI thresholds" from Sep 25, 2018, leads to the following static > checker warning: > > net/wireless/nl80211.c:10820 cfg80211_cqm_rssi_update() > warn: disabling speculation after use: 'i' Thanks. I will send a patch to prevent accessing to rssi_thresholds[n]. Regards, Masashi Honma.