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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 85233C11F69 for ; Tue, 6 Jul 2021 15:11:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6187761C29 for ; Tue, 6 Jul 2021 15:11:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232204AbhGFPOT (ORCPT ); Tue, 6 Jul 2021 11:14:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232228AbhGFPOQ (ORCPT ); Tue, 6 Jul 2021 11:14:16 -0400 Received: from mail-il1-x12b.google.com (mail-il1-x12b.google.com [IPv6:2607:f8b0:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3C74DC0617A6 for ; Tue, 6 Jul 2021 08:11:36 -0700 (PDT) Received: by mail-il1-x12b.google.com with SMTP id e13so4674196ilc.1 for ; Tue, 06 Jul 2021 08:11:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=4MFz8ETd/nmuIWZiubiifP+Omq2X9iSE9tCmj3gucYM=; b=IvCXivhuxpkQcwCSP/v/Rrn0oejjH/xBgjRtfoGhDm7lPAT9ogutmMgacy+clPyi90 DRK6HgR8AmsyVM4QORABjf/IAyGQ3UrkgNOTqIRMXsHteuk6/x/Br3dCjgnqoJCe77/0 NoZ6+4GEFW/mdLd6ihS8LHap9sTax8kG5BzSjYrBjsLKheGiGE55U68yC8yRpvGR3lrH i1lwKI80NFV0bQ+s0xhkaB3n4XHhOaW+jqS4RzYr17yLCz7jyCyj2zJOvQd/bsO7dMy8 2ctnoUx7hTSh3dWCQ/T9gwlXwnhJ8TT3KyPZF8lHiLfnzYjBh4g93fOsXwM2kjJbuutz CEWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=4MFz8ETd/nmuIWZiubiifP+Omq2X9iSE9tCmj3gucYM=; b=hFTYPn+vY875o9ZyVSoKY/9daBJ3rSr5T+5xBDR+n6WD/7hAkeouqtCReInqAtivQ2 lyisNJ5d9fxhftkSASWFbNgusQGn6LxJa5jSo9euNAMXSkwiYD/Xy6NKV0O0Tf9P50iD CM1CKeD37uPSqkkR71sEc0iPzZz1dTz8nEZlwczt1/tvSV2+dWIOLqqh0BsifGLe7+mp D6VReplP1Akuiz1vl9LDfE6Htqx52ItNfH3pu1TKd5g9Px8bWZ4/lrbzCiLhBHLmFDzJ mddXqE+gtgR4Y4FMQ23IrMqbanquLb3Dh22xC/fhbRnBlPX/hnK90qvAKOJMKp6aPrGC aEew== X-Gm-Message-State: AOAM533/ufBDNPIUKxooUQcPB+yk8xJhE4deV9j6m5b2thruegV898ry RK3tVCbprSCKpw5TgRlR720kHAHF1kaq6eU/9TXv5Q== X-Google-Smtp-Source: ABdhPJzdclmD8PsHwW9RgRKWE0tJHszXQy4UssslzUqRBaLI9w/Jj1BdJnRyjKvoHgub8buDAUaWux7OCTROnp7miaQ= X-Received: by 2002:a05:6e02:1a0f:: with SMTP id s15mr14885840ild.58.1625584295743; Tue, 06 Jul 2021 08:11:35 -0700 (PDT) MIME-Version: 1.0 References: <20210706095037.1425211-1-u.kleine-koenig@pengutronix.de> In-Reply-To: <20210706095037.1425211-1-u.kleine-koenig@pengutronix.de> From: Mathieu Poirier Date: Tue, 6 Jul 2021 09:11:24 -0600 Message-ID: Subject: Re: [PATCH] bus: Make remove callback return void To: =?UTF-8?Q?Uwe_Kleine=2DK=C3=B6nig?= Cc: Greg Kroah-Hartman , Pengutronix Kernel Team , Linux Kernel Mailing List , 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?B?UmFmYcWCIE1pxYJlY2tp?= , 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 , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas , Dominik Brodowski , Maximilian Luz , Hans de Goede , Mark Gross , Matt Porter , Alexandre Bounine , Ohad Ben-Cohen , Bjorn Andersson , "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 , Cornelia Huck , 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 , =?UTF-8?Q?Pali_Roh=C3=A1r?= , Adrian Hunter , Frank Li , Mike Christie , Bodo Stroesser , Hannes Reinecke , David Woodhouse , SeongJae Park , Julien Grall , linux-arm-kernel , 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 , linux-scsi@vger.kernel.org, alsa-devel@alsa-project.org, linux-arm-msm , 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 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org On Tue, 6 Jul 2021 at 03:56, 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. > > 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 send this mail to all people that get_maintainer.pl emits for this > patch. I wonder how many recipents will refuse this mail because of the > long Cc: list :-) > > Best regards > Uwe > > arch/arm/common/locomo.c | 3 +-- > arch/arm/common/sa1111.c | 4 +--- > arch/arm/mach-rpc/ecard.c | 4 +--- > arch/mips/sgi-ip22/ip22-gio.c | 3 +-- > arch/parisc/kernel/drivers.c | 5 ++--- > arch/powerpc/platforms/ps3/system-bus.c | 3 +-- > arch/powerpc/platforms/pseries/ibmebus.c | 3 +-- > arch/powerpc/platforms/pseries/vio.c | 3 +-- > drivers/acpi/bus.c | 3 +-- > drivers/amba/bus.c | 4 +--- > drivers/base/auxiliary.c | 4 +--- > drivers/base/isa.c | 4 +--- > drivers/base/platform.c | 4 +--- > drivers/bcma/main.c | 6 ++---- > drivers/bus/sunxi-rsb.c | 4 +--- > drivers/cxl/core.c | 3 +-- > drivers/dax/bus.c | 4 +--- > drivers/dma/idxd/sysfs.c | 4 +--- > drivers/firewire/core-device.c | 4 +--- > drivers/firmware/arm_scmi/bus.c | 4 +--- > drivers/firmware/google/coreboot_table.c | 4 +--- > drivers/fpga/dfl.c | 4 +--- > drivers/hid/hid-core.c | 4 +--- > drivers/hid/intel-ish-hid/ishtp/bus.c | 4 +--- > drivers/hv/vmbus_drv.c | 5 +---- > drivers/hwtracing/intel_th/core.c | 4 +--- > drivers/i2c/i2c-core-base.c | 5 +---- > drivers/i3c/master.c | 4 +--- > drivers/input/gameport/gameport.c | 3 +-- > drivers/input/serio/serio.c | 3 +-- > drivers/ipack/ipack.c | 4 +--- > drivers/macintosh/macio_asic.c | 4 +--- > drivers/mcb/mcb-core.c | 4 +--- > drivers/media/pci/bt8xx/bttv-gpio.c | 3 +-- > drivers/memstick/core/memstick.c | 3 +-- > drivers/mfd/mcp-core.c | 3 +-- > drivers/misc/mei/bus.c | 4 +--- > drivers/misc/tifm_core.c | 3 +-- > drivers/mmc/core/bus.c | 4 +--- > drivers/mmc/core/sdio_bus.c | 4 +--- > drivers/net/netdevsim/bus.c | 3 +-- > drivers/ntb/core.c | 4 +--- > drivers/ntb/ntb_transport.c | 4 +--- > drivers/nvdimm/bus.c | 3 +-- > drivers/pci/endpoint/pci-epf-core.c | 4 +--- > drivers/pci/pci-driver.c | 3 +-- > drivers/pcmcia/ds.c | 4 +--- > drivers/platform/surface/aggregator/bus.c | 4 +--- > drivers/platform/x86/wmi.c | 4 +--- > drivers/pnp/driver.c | 3 +-- > drivers/rapidio/rio-driver.c | 4 +--- > drivers/rpmsg/rpmsg_core.c | 4 +--- Reviewed-by: Mathieu Poirier