Received: by 2002:a25:c205:0:0:0:0:0 with SMTP id s5csp4231665ybf; Tue, 3 Mar 2020 23:28:22 -0800 (PST) X-Google-Smtp-Source: ADFU+vvLt1PgpNJkBZZB0kkQN/KGRxIInlW2jMVIH2u5/0gp8LEwcC6ybDrdYU8ASmGZKMZ1mj0y X-Received: by 2002:aca:b187:: with SMTP id a129mr854881oif.175.1583306902730; Tue, 03 Mar 2020 23:28:22 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1583306902; cv=none; d=google.com; s=arc-20160816; b=UBbuA/Oz6m6GATMnH6ZFqEoV6riDl8iMe8w00aDpQOZIAekUDjlscs0WCfPVp+qQJz QUX34ehcT5UDmAdxRQRvS7noTfTOZAvmqpygYaDfX0TIkuKkogaMqyjn+0E77ZSJ3sIW sq4FGYcoRvpcXOVuXkJ2Bgr7UQLXAWlLF9TDiA1YqEyywhBhFrf1AI0KyhALfjW+A4VL GV3OpviW8Xf+5jlxNidDxHxqT1d9w7Ok9/TcVvfOfmTv8E2YxDUM7TAuCPfHRGzLGZTj xP3joNDglJawyrfQgDRqj7TQQXxjEz2PRnAUNGWqz97TM43VcdzUyUpWTlJQtGujY6os GtxA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:to:references:message-id :content-transfer-encoding:cc:date:in-reply-to:from:subject :mime-version; bh=7xs/33V6MpCuHwDztRdxOfQ2J/ij1WC70LZ/UE/aE+g=; b=D5Bb82tkzysZyef74GLRqtcK6a4eWPaKxMiTdX/v7CJvzl6zF5f+gBdSxi702cK+Ut Q7phui9wpSpJp47XgE3QCUbQFskpZrv7QHafx4kmk4ZsX9zuWSFrHFUIJH1+KrygJzIi 61dU8TO5nkgL24/k8VcUDYOs9TmakuJVRIcGDmttcIQGv6tLWf88xgU2ZHRx7gQGZ4Wj GNVK5ByEi5Ybm05lZ1y3E0H5uxlK0jeq4SJTUhlLsXHwnhsLadrw5nZKnIul6jzrHVZV LIZocHPeH6Pj4Ux8+Sef0UR+vx+Z7jjXF3N/SUKlsKcqtj/7V4hufgh3JZuSzGkN6ftY V5OQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-bluetooth-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-bluetooth-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o6si668570oic.34.2020.03.03.23.28.11; Tue, 03 Mar 2020 23:28:22 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-bluetooth-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-bluetooth-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-bluetooth-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725965AbgCDH2G (ORCPT + 99 others); Wed, 4 Mar 2020 02:28:06 -0500 Received: from coyote.holtmann.net ([212.227.132.17]:33199 "EHLO mail.holtmann.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725825AbgCDH2G (ORCPT ); Wed, 4 Mar 2020 02:28:06 -0500 Received: from marcel-macbook.fritz.box (p4FEFC5A7.dip0.t-ipconnect.de [79.239.197.167]) by mail.holtmann.org (Postfix) with ESMTPSA id 3DE21CECDA; Wed, 4 Mar 2020 08:37:32 +0100 (CET) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.60.0.2.5\)) Subject: Re: [PATCH v3] bluetooth: guard against controllers sending zero'd events From: Marcel Holtmann In-Reply-To: <20200303155534.127645-1-alainm@chromium.org> Date: Wed, 4 Mar 2020 08:28:04 +0100 Cc: linux-bluetooth@vger.kernel.org Content-Transfer-Encoding: 7bit Message-Id: <3F146946-8F93-4541-B2EC-9EAE4262176F@holtmann.org> References: <20200303155534.127645-1-alainm@chromium.org> To: Alain Michaud X-Mailer: Apple Mail (2.3608.60.0.2.5) Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Hi Alain, > Some controllers have been observed to send zero'd events under some > conditions. This change guards against this condition as well as adding > a trace to facilitate diagnosability of this condition. > > Signed-off-by: Alain Michaud > --- > > net/bluetooth/hci_event.c | 6 ++++++ > 1 file changed, 6 insertions(+) patch has been applied to bluetooth-next tree. Regards Marcel