From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:52842 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932081AbeE2JE2 (ORCPT ); Tue, 29 May 2018 05:04:28 -0400 Date: Tue, 29 May 2018 11:04:07 +0200 From: Greg KH To: Martin Peres Cc: intel-gfx-trybot@lists.freedesktop.org, Alexander Usyskin , stable@vger.kernel.org Subject: Re: [PATCH] mei: discard messages from not connected client during power down. Message-ID: <20180529090407.GA9530@kroah.com> References: <20180529085616.29820-1-martin.peres@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180529085616.29820-1-martin.peres@linux.intel.com> Sender: stable-owner@vger.kernel.org List-ID: On Tue, May 29, 2018 at 11:56:16AM +0300, Martin Peres wrote: > From: Alexander Usyskin > > This fixes regression introduced by > commit 8d52af6795c0 ("mei: speed up the power down flow") > > In power down or suspend flow a message can still be received > from the FW because the clients fake disconnection. > In normal case we interpret messages w/o destination as corrupted > and link reset is performed in order to clean the channel, > but during power down link reset is already in progress resulting > in endless loop. To resolve the issue under power down flow we > discard messages silently. > > Cc: 4.16+ > Fixes: 8d52af6795c0 ("mei: speed up the power down flow") > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199541 > Signed-off-by: Alexander Usyskin > Signed-off-by: Tomas Winkler > --- > drivers/misc/mei/interrupt.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) Shouldn't this patch go through the char/misc maintainer? confused, greg k-h