Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 649B8C6FD19 for ; Mon, 13 Mar 2023 18:32:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231473AbjCMSc5 (ORCPT ); Mon, 13 Mar 2023 14:32:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35180 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230429AbjCMScS (ORCPT ); Mon, 13 Mar 2023 14:32:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E046284F77 for ; Mon, 13 Mar 2023 11:31:11 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id EBCEF61416 for ; Mon, 13 Mar 2023 18:30:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF613C433D2; Mon, 13 Mar 2023 18:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678732222; bh=Pq2G49k2alsP0lshp/4ziB6Ad5l2/VR2KomD6ac0rUo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kUfqEZ5R6SeP12Ghuz5bEg3qzvRcz9s3SU1erP15Cm/X7xiYnD+nHFTDT0UCkap+V EtJK8RlOj9Eq0qcHHlodiXw00eT28MAAF9P4TAEgZ40mkMNFNngfjOhADQRMsllUA2 IVwYPOcgSGjy62qi+VIafjlJGZmXtRY9FgRuj/aQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: rafael@kernel.org, Greg Kroah-Hartman , "David S. Miller" , "James E.J. Bottomley" , "K. Y. Srinivasan" , "Martin K. Petersen" , Alex Shi , Alexander Gordeev , Alexandre Bounine , Alison Schofield , Ben Widawsky , Bjorn Helgaas , Dan Williams , Dexuan Cui , Eric Dumazet , Haiyang Zhang , Hannes Reinecke , Harald Freudenberger , Heiko Carstens , Hu Haowen , Ilya Dryomov , Ira Weiny , Iwona Winiarska , Jakub Kicinski , Jens Axboe , Jonathan Corbet , Laurentiu Tudor , Matt Porter , Michael Ellerman , Paolo Abeni , Stuart Yoder , Vasily Gorbik , Vishal Verma , Wei Liu , Yanteng Si Subject: [PATCH 23/36] driver core: bus: mark the struct bus_type for sysfs callbacks as constant Date: Mon, 13 Mar 2023 19:29:05 +0100 Message-Id: <20230313182918.1312597-23-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230313182918.1312597-1-gregkh@linuxfoundation.org> References: <20230313182918.1312597-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=30198; i=gregkh@linuxfoundation.org; h=from:subject; bh=Pq2G49k2alsP0lshp/4ziB6Ad5l2/VR2KomD6ac0rUo=; b=owGbwMvMwCRo6H6F97bub03G02pJDCn82VXx61asXPlckGV7FmcrO1PKdo67hYeOK+5U/X33x hbvtKD+jlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZiI4GeGBecuXIjbd2q1zaZd tiIMNo7L+9mY5RgWzL5x2aPTc837zMTQprL1+5+Ef/IMAQA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org struct bus_type should never be modified in a sysfs callback as there is nothing in the structure to modify, and frankly, the structure is almost never used in a sysfs callback, so mark it as constant to allow struct bus_type to be moved to read-only memory. Cc: "David S. Miller" Cc: "James E.J. Bottomley" Cc: "K. Y. Srinivasan" Cc: "Martin K. Petersen" Cc: Alex Shi Cc: Alexander Gordeev Cc: Alexandre Bounine Cc: Alison Schofield Cc: Ben Widawsky Cc: Bjorn Helgaas Cc: Dan Williams Cc: Dexuan Cui Cc: Eric Dumazet Cc: Haiyang Zhang Cc: Hannes Reinecke Cc: Harald Freudenberger Cc: Heiko Carstens Cc: Hu Haowen Cc: Ilya Dryomov Cc: Ira Weiny Cc: Iwona Winiarska Cc: Jakub Kicinski Cc: Jens Axboe Cc: Jonathan Corbet Cc: Laurentiu Tudor Cc: Matt Porter Cc: Michael Ellerman Cc: Paolo Abeni Cc: Stuart Yoder Cc: Vasily Gorbik Cc: Vishal Verma Cc: Wei Liu Cc: Yanteng Si Signed-off-by: Greg Kroah-Hartman --- Note, this is a patch that is a prepatory cleanup as part of a larger series of patches that is working on resolving some old driver core design mistakes. It will build and apply cleanly on top of 6.3-rc2 on its own, but I'd prefer if I could take it through my driver-core tree so that the driver core changes can be taken through there for 6.4-rc1. Documentation/driver-api/driver-model/bus.rst | 4 +- Documentation/filesystems/sysfs.rst | 4 +- .../translations/zh_CN/filesystems/sysfs.txt | 4 +- .../translations/zh_TW/filesystems/sysfs.txt | 4 +- arch/powerpc/platforms/pseries/ibmebus.c | 4 +- arch/powerpc/platforms/pseries/vio.c | 8 ++-- drivers/ata/pata_parport/pata_parport.c | 6 +-- drivers/base/bus.c | 8 ++-- drivers/block/rbd.c | 34 +++++++-------- drivers/bus/fsl-mc/fsl-mc-bus.c | 6 +-- drivers/cxl/core/port.c | 2 +- drivers/hv/vmbus_drv.c | 2 +- drivers/net/netdevsim/bus.c | 4 +- drivers/pci/pci-sysfs.c | 2 +- drivers/pci/pci.c | 4 +- drivers/peci/sysfs.c | 2 +- drivers/rapidio/rio-sysfs.c | 2 +- drivers/s390/crypto/ap_bus.c | 42 +++++++++---------- drivers/scsi/fcoe/fcoe_sysfs.c | 8 ++-- drivers/scsi/fcoe/fcoe_transport.c | 6 +-- include/linux/device/bus.h | 4 +- include/scsi/libfcoe.h | 6 +-- 22 files changed, 78 insertions(+), 88 deletions(-) diff --git a/Documentation/driver-api/driver-model/bus.rst b/Documentation/driver-api/driver-model/bus.rst index 016b15a6e8ea..9709ab62a468 100644 --- a/Documentation/driver-api/driver-model/bus.rst +++ b/Documentation/driver-api/driver-model/bus.rst @@ -125,8 +125,8 @@ Exporting Attributes struct bus_attribute { struct attribute attr; - ssize_t (*show)(struct bus_type *, char * buf); - ssize_t (*store)(struct bus_type *, const char * buf, size_t count); + ssize_t (*show)(const struct bus_type *, char * buf); + ssize_t (*store)(const struct bus_type *, const char * buf, size_t count); }; Bus drivers can export attributes using the BUS_ATTR_RW macro that works diff --git a/Documentation/filesystems/sysfs.rst b/Documentation/filesystems/sysfs.rst index f8187d466b97..c32993bc83c7 100644 --- a/Documentation/filesystems/sysfs.rst +++ b/Documentation/filesystems/sysfs.rst @@ -373,8 +373,8 @@ Structure:: struct bus_attribute { struct attribute attr; - ssize_t (*show)(struct bus_type *, char * buf); - ssize_t (*store)(struct bus_type *, const char * buf, size_t count); + ssize_t (*show)(const struct bus_type *, char * buf); + ssize_t (*store)(const struct bus_type *, const char * buf, size_t count); }; Declaring:: diff --git a/Documentation/translations/zh_CN/filesystems/sysfs.txt b/Documentation/translations/zh_CN/filesystems/sysfs.txt index 046cc1d52058..547062759e60 100644 --- a/Documentation/translations/zh_CN/filesystems/sysfs.txt +++ b/Documentation/translations/zh_CN/filesystems/sysfs.txt @@ -329,8 +329,8 @@ void device_remove_file(struct device *dev, const struct device_attribute * attr struct bus_attribute { struct attribute attr; - ssize_t (*show)(struct bus_type *, char * buf); - ssize_t (*store)(struct bus_type *, const char * buf, size_t count); + ssize_t (*show)(const struct bus_type *, char * buf); + ssize_t (*store)(const struct bus_type *, const char * buf, size_t count); }; 声明: diff --git a/Documentation/translations/zh_TW/filesystems/sysfs.txt b/Documentation/translations/zh_TW/filesystems/sysfs.txt index acd677f19d4f..280824cc7e5d 100644 --- a/Documentation/translations/zh_TW/filesystems/sysfs.txt +++ b/Documentation/translations/zh_TW/filesystems/sysfs.txt @@ -332,8 +332,8 @@ void device_remove_file(struct device *dev, const struct device_attribute * attr struct bus_attribute { struct attribute attr; - ssize_t (*show)(struct bus_type *, char * buf); - ssize_t (*store)(struct bus_type *, const char * buf, size_t count); + ssize_t (*show)(const struct bus_type *, char * buf); + ssize_t (*store)(const struct bus_type *, const char * buf, size_t count); }; 聲明: diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c index bb9c18682783..44703f13985b 100644 --- a/arch/powerpc/platforms/pseries/ibmebus.c +++ b/arch/powerpc/platforms/pseries/ibmebus.c @@ -267,7 +267,7 @@ static char *ibmebus_chomp(const char *in, size_t count) return out; } -static ssize_t probe_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t probe_store(const struct bus_type *bus, const char *buf, size_t count) { struct device_node *dn = NULL; struct device *dev; @@ -305,7 +305,7 @@ static ssize_t probe_store(struct bus_type *bus, const char *buf, size_t count) } static BUS_ATTR_WO(probe); -static ssize_t remove_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t remove_store(const struct bus_type *bus, const char *buf, size_t count) { struct device *dev; char *path; diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c index 770df9351aaa..bf7aff6390be 100644 --- a/arch/powerpc/platforms/pseries/vio.c +++ b/arch/powerpc/platforms/pseries/vio.c @@ -1006,7 +1006,7 @@ ATTRIBUTE_GROUPS(vio_cmo_dev); /* sysfs bus functions and data structures for CMO */ #define viobus_cmo_rd_attr(name) \ -static ssize_t cmo_bus_##name##_show(struct bus_type *bt, char *buf) \ +static ssize_t cmo_bus_##name##_show(const struct bus_type *bt, char *buf) \ { \ return sprintf(buf, "%lu\n", vio_cmo.name); \ } \ @@ -1015,7 +1015,7 @@ static struct bus_attribute bus_attr_cmo_bus_##name = \ #define viobus_cmo_pool_rd_attr(name, var) \ static ssize_t \ -cmo_##name##_##var##_show(struct bus_type *bt, char *buf) \ +cmo_##name##_##var##_show(const struct bus_type *bt, char *buf) \ { \ return sprintf(buf, "%lu\n", vio_cmo.name.var); \ } \ @@ -1030,12 +1030,12 @@ viobus_cmo_pool_rd_attr(reserve, size); viobus_cmo_pool_rd_attr(excess, size); viobus_cmo_pool_rd_attr(excess, free); -static ssize_t cmo_high_show(struct bus_type *bt, char *buf) +static ssize_t cmo_high_show(const struct bus_type *bt, char *buf) { return sprintf(buf, "%lu\n", vio_cmo.high); } -static ssize_t cmo_high_store(struct bus_type *bt, const char *buf, +static ssize_t cmo_high_store(const struct bus_type *bt, const char *buf, size_t count) { unsigned long flags; diff --git a/drivers/ata/pata_parport/pata_parport.c b/drivers/ata/pata_parport/pata_parport.c index 294a266a0dda..64d1bde26940 100644 --- a/drivers/ata/pata_parport/pata_parport.c +++ b/drivers/ata/pata_parport/pata_parport.c @@ -554,8 +554,7 @@ void pata_parport_unregister_driver(struct pi_protocol *pr) } EXPORT_SYMBOL_GPL(pata_parport_unregister_driver); -static ssize_t new_device_store(struct bus_type *bus, const char *buf, - size_t count) +static ssize_t new_device_store(const struct bus_type *bus, const char *buf, size_t count) { char port[12] = "auto"; char protocol[8] = "auto"; @@ -630,8 +629,7 @@ static void pi_remove_one(struct device *dev) /* pata_parport_dev_release will do kfree(pi) */ } -static ssize_t delete_device_store(struct bus_type *bus, const char *buf, - size_t count) +static ssize_t delete_device_store(const struct bus_type *bus, const char *buf, size_t count) { struct device *dev; diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 91a6b6b1fc49..819ab745fa9f 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -274,7 +274,7 @@ static ssize_t bind_store(struct device_driver *drv, const char *buf, } static DRIVER_ATTR_IGNORE_LOCKDEP(bind, 0200, NULL, bind_store); -static ssize_t drivers_autoprobe_show(struct bus_type *bus, char *buf) +static ssize_t drivers_autoprobe_show(const struct bus_type *bus, char *buf) { struct subsys_private *sp = bus_to_subsys(bus); int ret; @@ -287,7 +287,7 @@ static ssize_t drivers_autoprobe_show(struct bus_type *bus, char *buf) return ret; } -static ssize_t drivers_autoprobe_store(struct bus_type *bus, +static ssize_t drivers_autoprobe_store(const struct bus_type *bus, const char *buf, size_t count) { struct subsys_private *sp = bus_to_subsys(bus); @@ -304,7 +304,7 @@ static ssize_t drivers_autoprobe_store(struct bus_type *bus, return count; } -static ssize_t drivers_probe_store(struct bus_type *bus, +static ssize_t drivers_probe_store(const struct bus_type *bus, const char *buf, size_t count) { struct device *dev; @@ -808,7 +808,7 @@ static void klist_devices_put(struct klist_node *n) put_device(dev); } -static ssize_t bus_uevent_store(struct bus_type *bus, +static ssize_t bus_uevent_store(const struct bus_type *bus, const char *buf, size_t count) { struct subsys_private *sp = bus_to_subsys(bus); diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 5cb008b9700a..84ad3b17956f 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -491,12 +491,12 @@ static bool single_major = true; module_param(single_major, bool, 0444); MODULE_PARM_DESC(single_major, "Use a single major number for all rbd devices (default: true)"); -static ssize_t add_store(struct bus_type *bus, const char *buf, size_t count); -static ssize_t remove_store(struct bus_type *bus, const char *buf, +static ssize_t add_store(const struct bus_type *bus, const char *buf, size_t count); +static ssize_t remove_store(const struct bus_type *bus, const char *buf, size_t count); -static ssize_t add_single_major_store(struct bus_type *bus, const char *buf, +static ssize_t add_single_major_store(const struct bus_type *bus, const char *buf, size_t count); -static ssize_t remove_single_major_store(struct bus_type *bus, const char *buf, +static ssize_t remove_single_major_store(const struct bus_type *bus, const char *buf, size_t count); static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth); @@ -538,7 +538,7 @@ static bool rbd_is_lock_owner(struct rbd_device *rbd_dev) return is_lock_owner; } -static ssize_t supported_features_show(struct bus_type *bus, char *buf) +static ssize_t supported_features_show(const struct bus_type *bus, char *buf) { return sprintf(buf, "0x%llx\n", RBD_FEATURES_SUPPORTED); } @@ -6967,9 +6967,7 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth) return ret; } -static ssize_t do_rbd_add(struct bus_type *bus, - const char *buf, - size_t count) +static ssize_t do_rbd_add(const char *buf, size_t count) { struct rbd_device *rbd_dev = NULL; struct ceph_options *ceph_opts = NULL; @@ -7081,18 +7079,18 @@ static ssize_t do_rbd_add(struct bus_type *bus, goto out; } -static ssize_t add_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t add_store(const struct bus_type *bus, const char *buf, size_t count) { if (single_major) return -EINVAL; - return do_rbd_add(bus, buf, count); + return do_rbd_add(buf, count); } -static ssize_t add_single_major_store(struct bus_type *bus, const char *buf, +static ssize_t add_single_major_store(const struct bus_type *bus, const char *buf, size_t count) { - return do_rbd_add(bus, buf, count); + return do_rbd_add(buf, count); } static void rbd_dev_remove_parent(struct rbd_device *rbd_dev) @@ -7122,9 +7120,7 @@ static void rbd_dev_remove_parent(struct rbd_device *rbd_dev) } } -static ssize_t do_rbd_remove(struct bus_type *bus, - const char *buf, - size_t count) +static ssize_t do_rbd_remove(const char *buf, size_t count) { struct rbd_device *rbd_dev = NULL; struct list_head *tmp; @@ -7196,18 +7192,18 @@ static ssize_t do_rbd_remove(struct bus_type *bus, return count; } -static ssize_t remove_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t remove_store(const struct bus_type *bus, const char *buf, size_t count) { if (single_major) return -EINVAL; - return do_rbd_remove(bus, buf, count); + return do_rbd_remove(buf, count); } -static ssize_t remove_single_major_store(struct bus_type *bus, const char *buf, +static ssize_t remove_single_major_store(const struct bus_type *bus, const char *buf, size_t count) { - return do_rbd_remove(bus, buf, count); + return do_rbd_remove(buf, count); } /* diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c index 36cb091a33b4..653e2d4c116f 100644 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c @@ -231,7 +231,7 @@ static int scan_fsl_mc_bus(struct device *dev, void *data) return 0; } -static ssize_t rescan_store(struct bus_type *bus, +static ssize_t rescan_store(const struct bus_type *bus, const char *buf, size_t count) { unsigned long val; @@ -284,7 +284,7 @@ static int fsl_mc_bus_get_autorescan(struct device *dev, void *data) return 0; } -static ssize_t autorescan_store(struct bus_type *bus, +static ssize_t autorescan_store(const struct bus_type *bus, const char *buf, size_t count) { bus_for_each_dev(bus, NULL, (void *)buf, fsl_mc_bus_set_autorescan); @@ -292,7 +292,7 @@ static ssize_t autorescan_store(struct bus_type *bus, return count; } -static ssize_t autorescan_show(struct bus_type *bus, char *buf) +static ssize_t autorescan_show(const struct bus_type *bus, char *buf) { bus_for_each_dev(bus, NULL, (void *)buf, fsl_mc_bus_get_autorescan); return strlen(buf); diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c index 8ee6b6e2e2a4..66333cd6248e 100644 --- a/drivers/cxl/core/port.c +++ b/drivers/cxl/core/port.c @@ -1927,7 +1927,7 @@ bool schedule_cxl_memdev_detach(struct cxl_memdev *cxlmd) EXPORT_SYMBOL_NS_GPL(schedule_cxl_memdev_detach, CXL); /* for user tooling to ensure port disable work has completed */ -static ssize_t flush_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t flush_store(const struct bus_type *bus, const char *buf, size_t count) { if (sysfs_streq(buf, "1")) { flush_workqueue(cxl_bus_wq); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index d24dd65b33d4..513adba09f56 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -684,7 +684,7 @@ static const struct attribute_group vmbus_dev_group = { __ATTRIBUTE_GROUPS(vmbus_dev); /* Set up the attribute for /sys/bus/vmbus/hibernation */ -static ssize_t hibernation_show(struct bus_type *bus, char *buf) +static ssize_t hibernation_show(const struct bus_type *bus, char *buf) { return sprintf(buf, "%d\n", !!hv_is_hibernation_supported()); } diff --git a/drivers/net/netdevsim/bus.c b/drivers/net/netdevsim/bus.c index 0052968e881e..0787ad252dd9 100644 --- a/drivers/net/netdevsim/bus.c +++ b/drivers/net/netdevsim/bus.c @@ -132,7 +132,7 @@ static struct nsim_bus_dev * nsim_bus_dev_new(unsigned int id, unsigned int port_count, unsigned int num_queues); static ssize_t -new_device_store(struct bus_type *bus, const char *buf, size_t count) +new_device_store(const struct bus_type *bus, const char *buf, size_t count) { unsigned int id, port_count, num_queues; struct nsim_bus_dev *nsim_bus_dev; @@ -186,7 +186,7 @@ static BUS_ATTR_WO(new_device); static void nsim_bus_dev_del(struct nsim_bus_dev *nsim_bus_dev); static ssize_t -del_device_store(struct bus_type *bus, const char *buf, size_t count) +del_device_store(const struct bus_type *bus, const char *buf, size_t count) { struct nsim_bus_dev *nsim_bus_dev, *tmp; unsigned int id; diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index dd0d9d9bc509..ab32a91f287b 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -428,7 +428,7 @@ static ssize_t msi_bus_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR_RW(msi_bus); -static ssize_t rescan_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t rescan_store(const struct bus_type *bus, const char *buf, size_t count) { unsigned long val; struct pci_bus *b = NULL; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 7a67611dc5f4..45c3bb039f21 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -6679,7 +6679,7 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev) } } -static ssize_t resource_alignment_show(struct bus_type *bus, char *buf) +static ssize_t resource_alignment_show(const struct bus_type *bus, char *buf) { size_t count = 0; @@ -6691,7 +6691,7 @@ static ssize_t resource_alignment_show(struct bus_type *bus, char *buf) return count; } -static ssize_t resource_alignment_store(struct bus_type *bus, +static ssize_t resource_alignment_store(const struct bus_type *bus, const char *buf, size_t count) { char *param, *old, *end; diff --git a/drivers/peci/sysfs.c b/drivers/peci/sysfs.c index db9ef05776e3..c04244075794 100644 --- a/drivers/peci/sysfs.c +++ b/drivers/peci/sysfs.c @@ -15,7 +15,7 @@ static int rescan_controller(struct device *dev, void *data) return peci_controller_scan_devices(to_peci_controller(dev)); } -static ssize_t rescan_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t rescan_store(const struct bus_type *bus, const char *buf, size_t count) { bool res; int ret; diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c index f7679602498e..90d391210533 100644 --- a/drivers/rapidio/rio-sysfs.c +++ b/drivers/rapidio/rio-sysfs.c @@ -286,7 +286,7 @@ const struct attribute_group *rio_dev_groups[] = { NULL, }; -static ssize_t scan_store(struct bus_type *bus, const char *buf, size_t count) +static ssize_t scan_store(const struct bus_type *bus, const char *buf, size_t count) { long val; int rc; diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index f4cc1720156f..5a99e0b18289 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1166,12 +1166,12 @@ EXPORT_SYMBOL(ap_parse_mask_str); * AP bus attributes. */ -static ssize_t ap_domain_show(struct bus_type *bus, char *buf) +static ssize_t ap_domain_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", ap_domain_index); } -static ssize_t ap_domain_store(struct bus_type *bus, +static ssize_t ap_domain_store(const struct bus_type *bus, const char *buf, size_t count) { int domain; @@ -1193,7 +1193,7 @@ static ssize_t ap_domain_store(struct bus_type *bus, static BUS_ATTR_RW(ap_domain); -static ssize_t ap_control_domain_mask_show(struct bus_type *bus, char *buf) +static ssize_t ap_control_domain_mask_show(const struct bus_type *bus, char *buf) { if (!ap_qci_info) /* QCI not supported */ return scnprintf(buf, PAGE_SIZE, "not supported\n"); @@ -1208,7 +1208,7 @@ static ssize_t ap_control_domain_mask_show(struct bus_type *bus, char *buf) static BUS_ATTR_RO(ap_control_domain_mask); -static ssize_t ap_usage_domain_mask_show(struct bus_type *bus, char *buf) +static ssize_t ap_usage_domain_mask_show(const struct bus_type *bus, char *buf) { if (!ap_qci_info) /* QCI not supported */ return scnprintf(buf, PAGE_SIZE, "not supported\n"); @@ -1223,7 +1223,7 @@ static ssize_t ap_usage_domain_mask_show(struct bus_type *bus, char *buf) static BUS_ATTR_RO(ap_usage_domain_mask); -static ssize_t ap_adapter_mask_show(struct bus_type *bus, char *buf) +static ssize_t ap_adapter_mask_show(const struct bus_type *bus, char *buf) { if (!ap_qci_info) /* QCI not supported */ return scnprintf(buf, PAGE_SIZE, "not supported\n"); @@ -1238,7 +1238,7 @@ static ssize_t ap_adapter_mask_show(struct bus_type *bus, char *buf) static BUS_ATTR_RO(ap_adapter_mask); -static ssize_t ap_interrupts_show(struct bus_type *bus, char *buf) +static ssize_t ap_interrupts_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", ap_irq_flag ? 1 : 0); @@ -1246,12 +1246,12 @@ static ssize_t ap_interrupts_show(struct bus_type *bus, char *buf) static BUS_ATTR_RO(ap_interrupts); -static ssize_t config_time_show(struct bus_type *bus, char *buf) +static ssize_t config_time_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", ap_config_time); } -static ssize_t config_time_store(struct bus_type *bus, +static ssize_t config_time_store(const struct bus_type *bus, const char *buf, size_t count) { int time; @@ -1265,12 +1265,12 @@ static ssize_t config_time_store(struct bus_type *bus, static BUS_ATTR_RW(config_time); -static ssize_t poll_thread_show(struct bus_type *bus, char *buf) +static ssize_t poll_thread_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", ap_poll_kthread ? 1 : 0); } -static ssize_t poll_thread_store(struct bus_type *bus, +static ssize_t poll_thread_store(const struct bus_type *bus, const char *buf, size_t count) { int flag, rc; @@ -1289,12 +1289,12 @@ static ssize_t poll_thread_store(struct bus_type *bus, static BUS_ATTR_RW(poll_thread); -static ssize_t poll_timeout_show(struct bus_type *bus, char *buf) +static ssize_t poll_timeout_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%llu\n", poll_timeout); } -static ssize_t poll_timeout_store(struct bus_type *bus, const char *buf, +static ssize_t poll_timeout_store(const struct bus_type *bus, const char *buf, size_t count) { unsigned long long time; @@ -1318,21 +1318,21 @@ static ssize_t poll_timeout_store(struct bus_type *bus, const char *buf, static BUS_ATTR_RW(poll_timeout); -static ssize_t ap_max_domain_id_show(struct bus_type *bus, char *buf) +static ssize_t ap_max_domain_id_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", ap_max_domain_id); } static BUS_ATTR_RO(ap_max_domain_id); -static ssize_t ap_max_adapter_id_show(struct bus_type *bus, char *buf) +static ssize_t ap_max_adapter_id_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", ap_max_adapter_id); } static BUS_ATTR_RO(ap_max_adapter_id); -static ssize_t apmask_show(struct bus_type *bus, char *buf) +static ssize_t apmask_show(const struct bus_type *bus, char *buf) { int rc; @@ -1393,7 +1393,7 @@ static int apmask_commit(unsigned long *newapm) return 0; } -static ssize_t apmask_store(struct bus_type *bus, const char *buf, +static ssize_t apmask_store(const struct bus_type *bus, const char *buf, size_t count) { int rc, changes = 0; @@ -1425,7 +1425,7 @@ static ssize_t apmask_store(struct bus_type *bus, const char *buf, static BUS_ATTR_RW(apmask); -static ssize_t aqmask_show(struct bus_type *bus, char *buf) +static ssize_t aqmask_show(const struct bus_type *bus, char *buf) { int rc; @@ -1486,7 +1486,7 @@ static int aqmask_commit(unsigned long *newaqm) return 0; } -static ssize_t aqmask_store(struct bus_type *bus, const char *buf, +static ssize_t aqmask_store(const struct bus_type *bus, const char *buf, size_t count) { int rc, changes = 0; @@ -1518,13 +1518,13 @@ static ssize_t aqmask_store(struct bus_type *bus, const char *buf, static BUS_ATTR_RW(aqmask); -static ssize_t scans_show(struct bus_type *bus, char *buf) +static ssize_t scans_show(const struct bus_type *bus, char *buf) { return scnprintf(buf, PAGE_SIZE, "%llu\n", atomic64_read(&ap_scan_bus_count)); } -static ssize_t scans_store(struct bus_type *bus, const char *buf, +static ssize_t scans_store(const struct bus_type *bus, const char *buf, size_t count) { AP_DBF_INFO("%s force AP bus rescan\n", __func__); @@ -1536,7 +1536,7 @@ static ssize_t scans_store(struct bus_type *bus, const char *buf, static BUS_ATTR_RW(scans); -static ssize_t bindings_show(struct bus_type *bus, char *buf) +static ssize_t bindings_show(const struct bus_type *bus, char *buf) { int rc; unsigned int apqns, n; diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c index 6260aa5ea6af..e17957f8085c 100644 --- a/drivers/scsi/fcoe/fcoe_sysfs.c +++ b/drivers/scsi/fcoe/fcoe_sysfs.c @@ -659,17 +659,17 @@ static const struct device_type fcoe_fcf_device_type = { .release = fcoe_fcf_device_release, }; -static ssize_t ctlr_create_store(struct bus_type *bus, const char *buf, +static ssize_t ctlr_create_store(const struct bus_type *bus, const char *buf, size_t count) { - return fcoe_ctlr_create_store(bus, buf, count); + return fcoe_ctlr_create_store(buf, count); } static BUS_ATTR_WO(ctlr_create); -static ssize_t ctlr_destroy_store(struct bus_type *bus, const char *buf, +static ssize_t ctlr_destroy_store(const struct bus_type *bus, const char *buf, size_t count) { - return fcoe_ctlr_destroy_store(bus, buf, count); + return fcoe_ctlr_destroy_store(buf, count); } static BUS_ATTR_WO(ctlr_destroy); diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c index 62341c6353a7..46b0bf237be1 100644 --- a/drivers/scsi/fcoe/fcoe_transport.c +++ b/drivers/scsi/fcoe/fcoe_transport.c @@ -745,8 +745,7 @@ static int libfcoe_device_notification(struct notifier_block *notifier, return NOTIFY_OK; } -ssize_t fcoe_ctlr_create_store(struct bus_type *bus, - const char *buf, size_t count) +ssize_t fcoe_ctlr_create_store(const char *buf, size_t count) { struct net_device *netdev = NULL; struct fcoe_transport *ft = NULL; @@ -808,8 +807,7 @@ ssize_t fcoe_ctlr_create_store(struct bus_type *bus, return count; } -ssize_t fcoe_ctlr_destroy_store(struct bus_type *bus, - const char *buf, size_t count) +ssize_t fcoe_ctlr_destroy_store(const char *buf, size_t count) { int rc = -ENODEV; struct net_device *netdev = NULL; diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index c258e8770285..78c875386c06 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -118,8 +118,8 @@ extern int __must_check bus_rescan_devices(struct bus_type *bus); struct bus_attribute { struct attribute attr; - ssize_t (*show)(struct bus_type *bus, char *buf); - ssize_t (*store)(struct bus_type *bus, const char *buf, size_t count); + ssize_t (*show)(const struct bus_type *bus, char *buf); + ssize_t (*store)(const struct bus_type *bus, const char *buf, size_t count); }; #define BUS_ATTR_RW(_name) \ diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h index 279782156373..8300ef1a982e 100644 --- a/include/scsi/libfcoe.h +++ b/include/scsi/libfcoe.h @@ -397,10 +397,8 @@ int fcoe_transport_attach(struct fcoe_transport *ft); int fcoe_transport_detach(struct fcoe_transport *ft); /* sysfs store handler for ctrl_control interface */ -ssize_t fcoe_ctlr_create_store(struct bus_type *bus, - const char *buf, size_t count); -ssize_t fcoe_ctlr_destroy_store(struct bus_type *bus, - const char *buf, size_t count); +ssize_t fcoe_ctlr_create_store(const char *buf, size_t count); +ssize_t fcoe_ctlr_destroy_store(const char *buf, size_t count); #endif /* _LIBFCOE_H */ -- 2.39.2