From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936428AbcKWQoT (ORCPT ); Wed, 23 Nov 2016 11:44:19 -0500 Received: from mx2.suse.de ([195.135.220.15]:39839 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935954AbcKWQoP (ORCPT ); Wed, 23 Nov 2016 11:44:15 -0500 Date: Wed, 23 Nov 2016 17:44:13 +0100 (CET) From: Jiri Kosina X-X-Sender: jkosina@pobox.suse.cz To: Benjamin Tissoires cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/4] HID: fix few non-DMA capable HID transfers In-Reply-To: <1479725322-30863-1-git-send-email-benjamin.tissoires@redhat.com> Message-ID: References: <1479725322-30863-1-git-send-email-benjamin.tissoires@redhat.com> User-Agent: Alpine 2.00 (LNX 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 21 Nov 2016, Benjamin Tissoires wrote: > While playing a little bit with the CP2112 (for hid-rmi I must confess), I > realized that kernel v4.9 now enforces DMA capable buffers when calling > hid_hw_raw_request(). Kernel v4.8 works fine (but gives a stacktrace the first > time), but v4.9 doesn't. > > So I gave a check of all the other drivers in the HID tree, and it looks like > only 4 drivers are not properly allocating their buffers. > > I'd say this is v4.9 material but I was not able to test magicmouse and lg. > If this doesn't qualifies for 4.9-rc7, I think we should add the stable@ stamp, > given that the chance this will break hid-rmi is huge (cp2112 is not so much an > issue, given it's a devel board). Thanks for fixing this up. Applied to for-4.9/upstream-fixes. -- Jiri Kosina SUSE Labs