From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v3] usb/hcd: Send a uevent signaling that the host controller had died From: Greg Kroah-Hartman Message-Id: <20190419121624.GA12209@kroah.com> Date: Fri, 19 Apr 2019 14:16:24 +0200 To: Raul E Rangel Cc: linux-usb@vger.kernel.org, groeck@chromium.org, oneukum@suse.com, djkurtz@chromium.org, zwisler@chromium.org, Sebastian Andrzej Siewior , Martin Blumenstingl , Alan Stern , Dmitry Torokhov , linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" , Miquel Raynal , Johan Hovold , Mathias Nyman List-ID: T24gV2VkLCBBcHIgMTcsIDIwMTkgYXQgMDE6MDM6MTZQTSAtMDYwMCwgUmF1bCBFIFJhbmdlbCB3 cm90ZToKPiBUaGlzIGNoYW5nZSB3aWxsIHNlbmQgYW4gT0ZGTElORSBldmVudCB0byB1ZGV2IHdp dGggdGhlIEVSUk9SPURFQUQKPiBlbnZpcm9ubWVudCB2YXJpYWJsZSBzZXQgd2hlbiB0aGUgSEMg ZGllcy4KPiAKPiBCeSBub3RpZnlpbmcgdXNlciBzcGFjZSB0aGUgYXBwcm9wcmlhdGUgcG9saWNp ZXMgY2FuIGJlIGFwcGxpZWQuCj4gaS5lLiwKPiAgKiBDb2xsZWN0IGVycm9yIGxvZ3MuCj4gICog Tm90aWZ5IHRoZSB1c2VyIHRoYXQgVVNCIGlzIG5vIGxvbmdlciBmdW5jdGlvbmFsLgo+ICAqIFBl cmZvcm0gYSBncmFjZWZ1bCByZWJvb3QuCj4gCj4gU2lnbmVkLW9mZi1ieTogUmF1bCBFIFJhbmdl bCA8cnJhbmdlbEBjaHJvbWl1bS5vcmc+CgpJJ2xsIHdhaXQgZm9yIGEgdjQgdG8gZml4IHVwIHRo ZSBidWdzIDAtZGF5IGZvdW5kIGluIHRoaXMgYmVmb3JlCnJldmlld2luZyA6KQoKdGhhbmtzLAoK Z3JlZyBrLWgK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3A49C282DA for ; Fri, 19 Apr 2019 18:33:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 862A82054F for ; Fri, 19 Apr 2019 18:33:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555698800; bh=Nwz6MB47owPeWVb24oGS4ZPsfgfpLOqrJ6XmgqtytVM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=aSKwBkQbJPG/FJEZICH/Qb6zT5c/wXBveP55KuaEkdiBNGPaL9OiIgRO7wCvY3W4E N3KOusPZXzu8KSvS26pghGzX8Nh3mhZ/dpY0WTBRAFe2cG24+sTB1z6mWgxCBpnrBb OIj0pcM+o15+VIvMq1645d26A5ka+hN4gMJqB6sw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727948AbfDSSdN (ORCPT ); Fri, 19 Apr 2019 14:33:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:53908 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727769AbfDSS3R (ORCPT ); Fri, 19 Apr 2019 14:29:17 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0D79921925; Fri, 19 Apr 2019 12:16:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555676186; bh=Nwz6MB47owPeWVb24oGS4ZPsfgfpLOqrJ6XmgqtytVM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=AVRNnI+tCaxmxotIT5e1bJXk6hnEG72mMz8GhppQSPmBY+lK65ok+j9PaucF+UjVT MJfpfPcAJ1Qk8Q+825vsIiLC//kYnrDcuMUx1LeX2uiPt4LiQKrGevTCaUeX3QkURV x2ZkqZI6iYA9X1QqvQwoxW00iJtog/yNG8u/pgg0= Date: Fri, 19 Apr 2019 14:16:24 +0200 From: Greg Kroah-Hartman To: Raul E Rangel Cc: linux-usb@vger.kernel.org, groeck@chromium.org, oneukum@suse.com, djkurtz@chromium.org, zwisler@chromium.org, Sebastian Andrzej Siewior , Martin Blumenstingl , Alan Stern , Dmitry Torokhov , linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" , Miquel Raynal , Johan Hovold , Mathias Nyman Subject: Re: [PATCH v3] usb/hcd: Send a uevent signaling that the host controller had died Message-ID: <20190419121624.GA12209@kroah.com> References: <20190417190316.10032-1-rrangel@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline In-Reply-To: <20190417190316.10032-1-rrangel@chromium.org> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Message-ID: <20190419121624.Hm0USVH8sb37UeXP6_FyorwX15PJlTRB0IQK3aGvkFE@z> On Wed, Apr 17, 2019 at 01:03:16PM -0600, Raul E Rangel wrote: > This change will send an OFFLINE event to udev with the ERROR=DEAD > environment variable set when the HC dies. > > By notifying user space the appropriate policies can be applied. > i.e., > * Collect error logs. > * Notify the user that USB is no longer functional. > * Perform a graceful reboot. > > Signed-off-by: Raul E Rangel I'll wait for a v4 to fix up the bugs 0-day found in this before reviewing :) thanks, greg k-h