Received: by 2002:a05:6358:16cc:b0:ea:6187:17c9 with SMTP id r12csp9359172rwl; Wed, 11 Jan 2023 04:55:03 -0800 (PST) X-Google-Smtp-Source: AMrXdXtM+ObCg4zrkX/eRrC9aVgVj0xESdM752wpD05Qpy8zBoJr9egO2K1JihflRJz2YJgiObEk X-Received: by 2002:a17:902:c10a:b0:188:bc62:276f with SMTP id 10-20020a170902c10a00b00188bc62276fmr72104055pli.3.1673441702790; Wed, 11 Jan 2023 04:55:02 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673441702; cv=none; d=google.com; s=arc-20160816; b=m68qHeDKJZS5pcOaO/F1DESq3jkwRo+ZWDJtEYazCcjXNhvSmWgG4R3Y1LhvVB7KL4 oH1aEp4QcWQjxOYb0go1Z0P4u1kUBUepsG4/BKPiNYO9UBQH5x5y727DmVeg1MvWTh/R M/6o/ss5VIJb63fMGM8M3NF97W0G/9o2L9n82xCQPo5QmG+tVA17FsX7mG4vS6OJJiLV oiR274+gmHZM5x2eBksryrFr/4Z9n1LQZW9LN8OvFnEYIVVzE+aj/zeyIkIZ3snVrzWp wkaoeQaBrLECZJptgu0OpOapcls/xv1xoFCeVJTkW1yq6V9D7PcLvz+VmGmqP81NU5pC Hoiw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:in-reply-to:from :references:to:content-language:subject:user-agent:mime-version:date :message-id:dkim-signature; bh=or7HIbi0FLzkErlpkRfiCb5sXTJTlfJeiqaPEzHEIp4=; b=NhmEWsc6Vd6+zdGZeKRChuOiz6KhCwCNwFzl7EW1B6Xa//VaSsR/YWgViW0uFX5uGE KVYfrMbrfvxLQ7IRhXIfmv9+HfSbsHMDiyIvFX/9yJ4N9HI/spr6TX0azteWOkcVnOBZ o/fgVlrDNKYFA3pHETYkWhO/X3TLk/u8+tTNQ73BMHE4OryBQMZxF7c5kdllIG6I3odp Uyras5+7HR4WVBT7wapN+hEPBwm2tNMNP/Td093E/Z1uZ1j0nz4T3FaAnKy3P6CdkDXt YuHTq4tN/eyET7df9RIBCBtSjRtf50rIRp+McPnlLevE3WpoGGugo44dAR9qVuymGjHU aOKA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=GQFlLb5x; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id h10-20020a170902680a00b00192b54de49bsi13292963plk.380.2023.01.11.04.54.55; Wed, 11 Jan 2023 04:55:02 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=GQFlLb5x; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239168AbjAKMAb (ORCPT + 53 others); Wed, 11 Jan 2023 07:00:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238612AbjAKL73 (ORCPT ); Wed, 11 Jan 2023 06:59:29 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A81499585 for ; Wed, 11 Jan 2023 03:55:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1673438144; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=or7HIbi0FLzkErlpkRfiCb5sXTJTlfJeiqaPEzHEIp4=; b=GQFlLb5xXp2WG+m/jT/cDaCO4t2fjHFWBgF4LUDPNZfl6O/sd1ZDMkcxvy6DE3xfRkYnKZ 9pVLQZjWzR9rSnC5xhr0zhuH47yYadWVKlLP/qWh12bHchreDMc+ieg4UERXgt0hvoepHb 5X4RoZV07GzQntwFdepHlgq+igkiSjk= Received: from mail-ej1-f69.google.com (mail-ej1-f69.google.com [209.85.218.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-609-LvFLT83WODm-Hf7FWWyr-w-1; Wed, 11 Jan 2023 06:55:43 -0500 X-MC-Unique: LvFLT83WODm-Hf7FWWyr-w-1 Received: by mail-ej1-f69.google.com with SMTP id dn11-20020a17090794cb00b007c14ea70afcso9914885ejc.0 for ; Wed, 11 Jan 2023 03:55:43 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=or7HIbi0FLzkErlpkRfiCb5sXTJTlfJeiqaPEzHEIp4=; b=vCgBlSDC7Kp1RaGQrktt/1m8CUmlzVvEMXGWqLsVglQZqnJ27Xn/rRQGbJkcBDnRSe 5uqnXwwtpVmqp758aV1RM2qLcf+4gaqevuFMOJkUiLFe1QQsZjrtxtqIbmSBCBsRe2Z6 ceQg+3gXKWnb3l9HSyiP/mZMy3cVxKScZDqlMCTI+eRyeQcyUFTdTnjEsbeF22KFSvgy csydm/55LnIk+WDbuitvr5shKICwbUDBq8ToqVHjiJju4WKH76e8wZK1ZWx0FaQJlSiY 9aLzt7XmCrvXBVTBzn9nCtXkZIqX4Ve8mFQIWbmYVLDvCwXng1JIQK5/QFLuX4sSSK8p ExCQ== X-Gm-Message-State: AFqh2ko83U7jxq28phvA5Yi90j/42GGH+Z+kd332xnr8B6PGMstptcg7 TMfFZzJDpz98YzQai4EiylgkIvWMG7KHJQ3wWNrJVDPu1EHSe5HvPixHt0Gf8QkgA6z8YC2bymG 2hcn1ww2zSXdZunw3uSIf+inJ X-Received: by 2002:a17:906:c18d:b0:843:770e:777d with SMTP id g13-20020a170906c18d00b00843770e777dmr60211503ejz.11.1673438141793; Wed, 11 Jan 2023 03:55:41 -0800 (PST) X-Received: by 2002:a17:906:c18d:b0:843:770e:777d with SMTP id g13-20020a170906c18d00b00843770e777dmr60211488ejz.11.1673438141496; Wed, 11 Jan 2023 03:55:41 -0800 (PST) Received: from ?IPV6:2001:1c00:c32:7800:5bfa:a036:83f0:f9ec? (2001-1c00-0c32-7800-5bfa-a036-83f0-f9ec.cable.dynamic.v6.ziggo.nl. [2001:1c00:c32:7800:5bfa:a036:83f0:f9ec]) by smtp.gmail.com with ESMTPSA id tb18-20020a1709078b9200b007c09d37eac7sm6063274ejc.216.2023.01.11.03.55.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Jan 2023 03:55:40 -0800 (PST) Message-ID: <1d0dff6f-97c7-c800-2a6b-551613cae733@redhat.com> Date: Wed, 11 Jan 2023 12:55:40 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH v2 00/16] driver core: make more things const! Content-Language: en-US, nl To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org References: <20230111113018.459199-1-gregkh@linuxfoundation.org> From: Hans de Goede In-Reply-To: <20230111113018.459199-1-gregkh@linuxfoundation.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 1/11/23 12:30, Greg Kroah-Hartman wrote: > Here's an updated version of this original series: > https://lore.kernel.org/all/20221123122523.1332370-1-gregkh@linuxfoundation.org/ > that has the goal of making more functions in the driver core take const > pointers as they do not actually modify anything. This work is an > outgrowth of some conversations I had with the Linux Rust developers > talking about the mutability of many of the driver model pointers. > > A small subset of the original submission is now in 6.2-rc1 and this > series is an outgrown of the original submission in that many things are > now changed and a bit more explicit than before. > > I can take all of these through the driver-core git tree as they depend > on each other. 0-day has been passing on this series for quite a while, > so all should be good unless some subsystem trees have added new busses > without me noticing. > > Bonus for all of this work, the overall code size of the kernel actually > decreased a tiny bit: > 126 files changed, 283 insertions(+), 309 deletions(-) > while adding a lot more type-safeness to the system. Other then a small remark on "[PATCH v2 03/16] platform/surface: aggregator: move to_ssam_device() to use container_of_const()" the platform/surface and platform/x86/wmi.c changes look good to me: Acked-by: Hans de Goede Regards, Hans > > Changes from v1: > - rebased on 6.2-rc1 and dropped accepted patches already in there. > - container_of_const() is now in 6.2-rc1 so use that in many > individual subsystems to make the follow-on changes in the driver > core more obvious. > - collected some Reviewed-by > - of_device_uevent_modalias was being "abused" by many different > subsystems in using it instead of a local bus function which played > havoc when enabling stricter type-checking. Move that out into a > new function for the busses that were doing this to make it more > obvious what they need here. > > Greg Kroah-Hartman (16): > of: device: make of_device_uevent_modalias() take a const device * > i3c: move dev_to_i3cdev() to use container_of_const() > platform/surface: aggregator: move to_ssam_device() to use > container_of_const() > firewire: move fw_device() and fw_unit() to use container_of_const() > driver core: make struct device_type.uevent() take a const * > driver core: make struct device_type.devnode() take a const * > driver core: device_get_devnode() should take a const * > vio: move to_vio_dev() to use container_of_const() > platform/x86: wmi: move dev_to_wblock() and dev_to_wdev to use > container_of_const() > drivers: hv: move device_to_hv_device to use container_of_const() > virtio: move dev_to_virtio() to use container_of_const() > drm/mipi-dsi: move to_mipi_dsi_device() to use container_of_const() > mcb: move to_mcb_device() to use container_of_const() > xen/xenbus: move to_xenbus_device() to use container_of_const() > driver core: make struct bus_type.uevent() take a const * > kobject: kset_uevent_ops: make uevent() callback take a const * > > arch/mips/sgi-ip22/ip22-gio.c | 4 ++-- > arch/parisc/kernel/drivers.c | 4 ++-- > arch/powerpc/include/asm/vio.h | 5 +---- > arch/powerpc/platforms/pseries/ibmebus.c | 7 ++++++- > arch/powerpc/platforms/pseries/vio.c | 4 ++-- > arch/sparc/include/asm/vio.h | 5 +---- > arch/sparc/kernel/vio.c | 2 +- > block/genhd.c | 2 +- > block/partitions/core.c | 4 ++-- > drivers/acpi/bus.c | 2 +- > drivers/acpi/device_sysfs.c | 8 ++++---- > drivers/acpi/internal.h | 2 +- > drivers/amba/bus.c | 4 ++-- > drivers/base/auxiliary.c | 2 +- > drivers/base/base.h | 2 ++ > drivers/base/core.c | 6 +++--- > drivers/base/cpu.c | 2 +- > drivers/base/platform.c | 4 ++-- > drivers/bcma/main.c | 6 +++--- > drivers/bus/fsl-mc/fsl-mc-bus.c | 4 ++-- > drivers/bus/mhi/ep/main.c | 4 ++-- > drivers/bus/mhi/host/init.c | 4 ++-- > drivers/bus/mips_cdmm.c | 4 ++-- > drivers/bus/sunxi-rsb.c | 7 ++++++- > drivers/cxl/core/memdev.c | 4 ++-- > drivers/cxl/core/port.c | 8 ++++---- > drivers/cxl/cxl.h | 4 ++-- > drivers/cxl/cxlmem.h | 2 +- > drivers/dax/bus.c | 2 +- > drivers/eisa/eisa-bus.c | 4 ++-- > drivers/firewire/core-device.c | 8 ++++---- > drivers/firmware/arm_ffa/bus.c | 4 ++-- > drivers/fpga/dfl.c | 4 ++-- > drivers/fsi/fsi-core.c | 6 +++--- > drivers/gpu/drm/display/drm_dp_aux_bus.c | 7 ++++++- > drivers/gpu/drm/drm_mipi_dsi.c | 4 ++-- > drivers/gpu/host1x/bus.c | 2 +- > drivers/greybus/core.c | 14 +++++++------- > drivers/hid/hid-core.c | 4 ++-- > drivers/hid/intel-ish-hid/ishtp/bus.c | 2 +- > drivers/hsi/hsi_core.c | 2 +- > drivers/hv/vmbus_drv.c | 4 ++-- > drivers/hwtracing/intel_th/core.c | 6 +++--- > drivers/hwtracing/intel_th/intel_th.h | 4 ++-- > drivers/i2c/i2c-core-base.c | 4 ++-- > drivers/i3c/device.c | 14 +------------- > drivers/i3c/master.c | 4 ++-- > drivers/input/input.c | 16 ++++++++-------- > drivers/input/serio/serio.c | 4 ++-- > drivers/ipack/ipack.c | 4 ++-- > drivers/macintosh/macio_asic.c | 7 ++++++- > drivers/mcb/mcb-core.c | 4 ++-- > drivers/media/rc/rc-main.c | 2 +- > drivers/memstick/core/memstick.c | 6 +++--- > drivers/misc/mei/bus.c | 4 ++-- > drivers/misc/tifm_core.c | 4 ++-- > drivers/mmc/core/bus.c | 4 ++-- > drivers/mmc/core/sdio_bus.c | 4 ++-- > drivers/net/phy/mdio_bus.c | 2 +- > drivers/net/xen-netback/xenbus.c | 2 +- > drivers/nvdimm/bus.c | 4 ++-- > drivers/nvdimm/dax_devs.c | 2 +- > drivers/nvdimm/dimm_devs.c | 2 +- > drivers/nvdimm/nd-core.h | 10 +++++----- > drivers/nvdimm/nd.h | 4 ++-- > drivers/nvdimm/region_devs.c | 4 ++-- > drivers/of/device.c | 4 ++-- > drivers/pci/pci-driver.c | 4 ++-- > drivers/pcmcia/ds.c | 4 ++-- > drivers/platform/surface/aggregator/bus.c | 4 ++-- > drivers/platform/x86/wmi.c | 15 ++++----------- > drivers/rapidio/rio-driver.c | 4 ++-- > drivers/rpmsg/rpmsg_core.c | 4 ++-- > drivers/s390/cio/css.c | 4 ++-- > drivers/s390/cio/device.c | 8 ++++---- > drivers/s390/cio/scm.c | 2 +- > drivers/s390/crypto/ap_bus.c | 4 ++-- > drivers/scsi/scsi_sysfs.c | 4 ++-- > drivers/slimbus/core.c | 4 ++-- > drivers/soc/qcom/apr.c | 4 ++-- > drivers/soundwire/bus_type.c | 4 ++-- > drivers/spi/spi.c | 2 +- > drivers/spmi/spmi.c | 2 +- > drivers/ssb/main.c | 4 ++-- > drivers/staging/greybus/gbphy.c | 14 +++++++------- > drivers/tee/tee_core.c | 2 +- > drivers/thunderbolt/switch.c | 4 ++-- > drivers/thunderbolt/tb.h | 2 +- > drivers/thunderbolt/xdomain.c | 6 +++--- > drivers/tty/serdev/core.c | 2 +- > drivers/usb/common/ulpi.c | 4 ++-- > drivers/usb/core/driver.c | 6 +++--- > drivers/usb/core/message.c | 8 ++++---- > drivers/usb/core/usb.c | 8 ++++---- > drivers/usb/phy/phy.c | 6 +++--- > drivers/usb/roles/class.c | 3 +-- > drivers/usb/typec/bus.c | 4 ++-- > drivers/usb/typec/class.c | 2 +- > drivers/virtio/virtio.c | 4 ++-- > drivers/w1/w1.c | 10 +++++----- > drivers/xen/pvcalls-back.c | 2 +- > drivers/xen/xenbus/xenbus_probe_backend.c | 8 ++++---- > drivers/xen/xenbus/xenbus_probe_frontend.c | 4 ++-- > drivers/zorro/zorro-driver.c | 4 ++-- > fs/dlm/lockspace.c | 4 ++-- > fs/gfs2/sys.c | 6 +++--- > include/drm/drm_mipi_dsi.h | 5 +---- > include/linux/acpi.h | 4 ++-- > include/linux/device.h | 6 ++---- > include/linux/device/bus.h | 2 +- > include/linux/firewire.h | 15 +++------------ > include/linux/hyperv.h | 5 +---- > include/linux/i3c/device.h | 11 +++++++++-- > include/linux/kobject.h | 2 +- > include/linux/mcb.h | 5 +---- > include/linux/of_device.h | 4 ++-- > include/linux/soundwire/sdw_type.h | 2 +- > include/linux/spi/spi.h | 2 +- > include/linux/ssb/ssb.h | 2 +- > include/linux/surface_aggregator/device.h | 5 +---- > include/linux/virtio.h | 5 +---- > include/sound/hdaudio.h | 2 +- > include/xen/xenbus.h | 7 ++----- > sound/aoa/soundbus/core.c | 6 +++--- > sound/hda/hda_bus_type.c | 2 +- > sound/hda/hdac_device.c | 2 +- > 126 files changed, 283 insertions(+), 309 deletions(-) >