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[209.132.180.67]) by mx.google.com with ESMTP id u21si2611101pgn.290.2019.07.03.08.29.00; Wed, 03 Jul 2019 08:29:15 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-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-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726678AbfGCP2k (ORCPT + 99 others); Wed, 3 Jul 2019 11:28:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36958 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725933AbfGCP2k (ORCPT ); Wed, 3 Jul 2019 11:28:40 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3CABC308222F; Wed, 3 Jul 2019 15:28:40 +0000 (UTC) Received: from gondolin (dhcp-192-192.str.redhat.com [10.33.192.192]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5A0561001281; Wed, 3 Jul 2019 15:28:36 +0000 (UTC) Date: Wed, 3 Jul 2019 17:28:34 +0200 From: Cornelia Huck To: Vasily Gorbik Cc: Sebastian Ott , Peter Oberparleiter , Halil Pasic , Alex Williamson , Heiko Carstens , Christian Borntraeger , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] s390/cio: introduce driver_override on the css bus Message-ID: <20190703172834.31ed1848.cohuck@redhat.com> In-Reply-To: References: <20190613110815.17251-1-cohuck@redhat.com> <20190624091740.1d9c6c1d.cohuck@redhat.com> <20190703165506.53d3911c.cohuck@redhat.com> Organization: Red Hat GmbH MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.47]); Wed, 03 Jul 2019 15:28:40 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 3 Jul 2019 17:09:53 +0200 Vasily Gorbik wrote: > On Wed, Jul 03, 2019 at 04:55:06PM +0200, Cornelia Huck wrote: > > On Mon, 24 Jun 2019 09:17:40 +0200 > > Cornelia Huck wrote: > > > > > On Fri, 21 Jun 2019 18:19:36 +0200 (CEST) > > > Sebastian Ott wrote: > > > > > > > On Thu, 13 Jun 2019, Cornelia Huck wrote: > > > > > Sometimes, we want to control which of the matching drivers > > > > > binds to a subchannel device (e.g. for subchannels we want to > > > > > handle via vfio-ccw). > > > > > > > > > > For pci devices, a mechanism to do so has been introduced in > > > > > 782a985d7af2 ("PCI: Introduce new device binding path using > > > > > pci_dev.driver_override"). It makes sense to introduce the > > > > > driver_override attribute for subchannel devices as well, so > > > > > that we can easily extend the 'driverctl' tool (which makes > > > > > use of the driver_override attribute for pci). > > > > > > > > > > Note that unlike pci we still require a driver override to > > > > > match the subchannel type; matching more than one subchannel > > > > > type is probably not useful anyway. > > > > > > > > > > Signed-off-by: Cornelia Huck > > > > > > > > Reviewed-by: Sebastian Ott > > > > > > > > Should I take that via our git tree or do you have other patches depending > > > > on this one? > > > > > > > > > > No, this patch is stand-alone; everything else is happening in user > > > space, so taking it via your tree would be great. Thanks! > > > > Friendly ping (I don't see it on s390/features yet; or is this going > > via some other path?) > > > > It is there now. Just waited until latest ci results to push the branch. > Sorry for delay. > Awesome, thanks!