From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 572F6177 for ; Tue, 6 Jul 2021 10:57:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1625569063; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QUyu+xoe1E6BsQbSDzUeyLIXRBJKwC/I/FCZr8qcsPA=; b=Tpitbp8kRSV2Hc2y6VIhqDekGY7ZfeSw1kRC+BpUzdAdWDjVolk9floMPAIccWCKebta0U 41FDt47yB0fzRf/2Kg6HJo1mf3TAQLqXEk9QilWjSmo7/7k26EWUm7t8rCvaA0yK9jrXp0 lpxxx/yL6IbqFrmFw/bhdsMwYLpf2fo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-263-5mCOs4Y3P-6VHTb8_rh9-g-1; Tue, 06 Jul 2021 06:57:41 -0400 X-MC-Unique: 5mCOs4Y3P-6VHTb8_rh9-g-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 481AE100B3AC; Tue, 6 Jul 2021 10:57:36 +0000 (UTC) Received: from localhost (ovpn-113-13.ams2.redhat.com [10.36.113.13]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 95A0A60CC6; Tue, 6 Jul 2021 10:57:19 +0000 (UTC) From: Cornelia Huck To: Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= , Greg Kroah-Hartman Cc: kernel@pengutronix.de, linux-kernel@vger.kernel.org, Russell King , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Geoff Levand , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , "Rafael J. Wysocki" , Len Brown , William Breathitt Gray , =?utf-8?Q?Rafa=C5=82_Mi=C5=82eck?= =?utf-8?Q?i?= , Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec , Alison Schofield , Vishal Verma , Ira Weiny , Ben Widawsky , Dan Williams , Dave Jiang , Vinod Koul , Stefan Richter , Sudeep Holla , Cristian Marussi , Wu Hao , Tom Rix , Moritz Fischer , Jiri Kosina , Benjamin Tissoires , Srinivas Pandruvada , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui , Alexander Shishkin , Wolfram Sang , Alexandre Belloni , Dmitry Torokhov , Samuel Iglesias Gonsalvez , Jens Taprogge , Johannes Thumshirn , Mauro Carvalho Chehab , Maxim Levitsky , Alex Dubov , Ulf Hansson , Lee Jones , Tomas Winkler , Arnd Bergmann , Jakub Kicinski , "David S. Miller" , Jon Mason , Allen Hubbe , Kishon Vijay Abraham I , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84sk?= =?utf-8?Q?i?= , Bjorn Helgaas , Dominik Brodowski , Maximilian Luz , Hans de Goede , Mark Gross , Matt Porter , Alexandre Bounine , Ohad Ben-Cohen , Bjorn Andersson , Mathieu Poirier , "Martin K. Petersen" , Thorsten Scherer , Srinivas Kandagatla , Andy Gross , Mark Brown , Stephen Boyd , Michael Buesch , Sven Van Asbroeck , Johan Hovold , Alex Elder , Andreas Noever , Michael Jamet , Mika Westerberg , Yehezkel Bernat , Rob Herring , Jiri Slaby , Heikki Krogerus , "Michael S. Tsirkin" , Jason Wang , Kirti Wankhede , Alex Williamson , Martyn Welch , Manohar Vanga , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , Johannes Berg , Jaroslav Kysela , Takashi Iwai , Marc Zyngier , Tyrel Datwyler , Vladimir Zapolskiy , Samuel Holland , Qinglang Miao , Alexey Kardashevskiy , Kai-Heng Feng , Joey Pabalan , Pali =?utf-8?Q?Roh=C3=A1r?= , Adrian Hunter , Frank Li , Mike Christie , Bodo Stroesser , Hannes Reinecke , David Woodhouse , SeongJae Park , Julien Grall , linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org, linux-wireless@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, dmaengine@vger.kernel.org, linux1394-devel@lists.sourceforge.net, linux-fpga@vger.kernel.org, linux-input@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-i2c@vger.kernel.org, linux-i3c@lists.infradead.org, industrypack-devel@lists.sourceforge.net, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, netdev@vger.kernel.org, linux-ntb@googlegroups.com, linux-pci@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-scsi@vger.kernel.org, alsa-devel@alsa-project.org, linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, linux-staging@lists.linux.dev, greybus-dev@lists.linaro.org, target-devel@vger.kernel.org, linux-usb@vger.kernel.org, linux-serial@vger.kernel.org, virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org Subject: Re: [PATCH] bus: Make remove callback return void In-Reply-To: <20210706095037.1425211-1-u.kleine-koenig@pengutronix.de> Organization: Red Hat GmbH References: <20210706095037.1425211-1-u.kleine-koenig@pengutronix.de> User-Agent: Notmuch/0.32.1 (https://notmuchmail.org) Date: Tue, 06 Jul 2021 12:57:17 +0200 Message-ID: <87pmvvhfqq.fsf@redhat.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Tue, Jul 06 2021, Uwe Kleine-K=C3=B6nig = wrote: > The driver core ignores the return value of this callback because there > is only little it can do when a device disappears. > > This is the final bit of a long lasting cleanup quest where several > buses were converted to also return void from their remove callback. > Additionally some resource leaks were fixed that were caused by drivers > returning an error code in the expectation that the driver won't go > away. > > With struct bus_type::remove returning void it's prevented that newly > implemented buses return an ignored error code and so don't anticipate > wrong expectations for driver authors. Yay! > > Signed-off-by: Uwe Kleine-K=C3=B6nig > --- > Hello, > > this patch depends on "PCI: endpoint: Make struct pci_epf_driver::remove > return void" that is not yet applied, see > https://lore.kernel.org/r/20210223090757.57604-1-u.kleine-koenig@pengutro= nix.de. > > I tested it using allmodconfig on amd64 and arm, but I wouldn't be > surprised if I still missed to convert a driver. So it would be great to > get this into next early after the merge window closes. I'm afraid you missed the s390-specific busses in drivers/s390/cio/ (css/ccw/ccwgroup).