From 5aee2bf2629d7db2619110f62b15cf742c116e0b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 9 Dec 2019 20:33:01 +0100 Subject: device.h: move 'struct bus' stuff out to device/bus.h device.h has everything and the kitchen sink when it comes to struct device things, so split out the struct bus things things to a separate .h file to make things easier to maintain and manage over time. Cc: "Rafael J. Wysocki" Cc: Suzuki K Poulose Cc: Saravana Kannan Cc: Heikki Krogerus Link: https://lore.kernel.org/r/20191209193303.1694546-5-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- include/linux/device/bus.h | 288 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 288 insertions(+) create mode 100644 include/linux/device/bus.h (limited to 'include/linux/device') diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h new file mode 100644 index 000000000000..1ea5e1d1545b --- /dev/null +++ b/include/linux/device/bus.h @@ -0,0 +1,288 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * bus.h - the bus-specific portions of the driver model + * + * Copyright (c) 2001-2003 Patrick Mochel + * Copyright (c) 2004-2009 Greg Kroah-Hartman + * Copyright (c) 2008-2009 Novell Inc. + * Copyright (c) 2012-2019 Greg Kroah-Hartman + * Copyright (c) 2012-2019 Linux Foundation + * + * See Documentation/driver-api/driver-model/ for more information. + */ + +#ifndef _DEVICE_BUS_H_ +#define _DEVICE_BUS_H_ + +#include +#include +#include + +struct device_driver; +struct fwnode_handle; + +/** + * struct bus_type - The bus type of the device + * + * @name: The name of the bus. + * @dev_name: Used for subsystems to enumerate devices like ("foo%u", dev->id). + * @dev_root: Default device to use as the parent. + * @bus_groups: Default attributes of the bus. + * @dev_groups: Default attributes of the devices on the bus. + * @drv_groups: Default attributes of the device drivers on the bus. + * @match: Called, perhaps multiple times, whenever a new device or driver + * is added for this bus. It should return a positive value if the + * given device can be handled by the given driver and zero + * otherwise. It may also return error code if determining that + * the driver supports the device is not possible. In case of + * -EPROBE_DEFER it will queue the device for deferred probing. + * @uevent: Called when a device is added, removed, or a few other things + * that generate uevents to add the environment variables. + * @probe: Called when a new device or driver add to this bus, and callback + * the specific driver's probe to initial the matched device. + * @sync_state: Called to sync device state to software state after all the + * state tracking consumers linked to this device (present at + * the time of late_initcall) have successfully bound to a + * driver. If the device has no consumers, this function will + * be called at late_initcall_sync level. If the device has + * consumers that are never bound to a driver, this function + * will never get called until they do. + * @remove: Called when a device removed from this bus. + * @shutdown: Called at shut-down time to quiesce the device. + * + * @online: Called to put the device back online (after offlining it). + * @offline: Called to put the device offline for hot-removal. May fail. + * + * @suspend: Called when a device on this bus wants to go to sleep mode. + * @resume: Called to bring a device on this bus out of sleep mode. + * @num_vf: Called to find out how many virtual functions a device on this + * bus supports. + * @dma_configure: Called to setup DMA configuration on a device on + * this bus. + * @pm: Power management operations of this bus, callback the specific + * device driver's pm-ops. + * @iommu_ops: IOMMU specific operations for this bus, used to attach IOMMU + * driver implementations to a bus and allow the driver to do + * bus-specific setup + * @p: The private data of the driver core, only the driver core can + * touch this. + * @lock_key: Lock class key for use by the lock validator + * @need_parent_lock: When probing or removing a device on this bus, the + * device core should lock the device's parent. + * + * A bus is a channel between the processor and one or more devices. For the + * purposes of the device model, all devices are connected via a bus, even if + * it is an internal, virtual, "platform" bus. Buses can plug into each other. + * A USB controller is usually a PCI device, for example. The device model + * represents the actual connections between buses and the devices they control. + * A bus is represented by the bus_type structure. It contains the name, the + * default attributes, the bus' methods, PM operations, and the driver core's + * private data. + */ +struct bus_type { + const char *name; + const char *dev_name; + struct device *dev_root; + const struct attribute_group **bus_groups; + const struct attribute_group **dev_groups; + const struct attribute_group **drv_groups; + + int (*match)(struct device *dev, struct device_driver *drv); + int (*uevent)(struct device *dev, struct kobj_uevent_env *env); + int (*probe)(struct device *dev); + void (*sync_state)(struct device *dev); + int (*remove)(struct device *dev); + void (*shutdown)(struct device *dev); + + int (*online)(struct device *dev); + int (*offline)(struct device *dev); + + int (*suspend)(struct device *dev, pm_message_t state); + int (*resume)(struct device *dev); + + int (*num_vf)(struct device *dev); + + int (*dma_configure)(struct device *dev); + + const struct dev_pm_ops *pm; + + const struct iommu_ops *iommu_ops; + + struct subsys_private *p; + struct lock_class_key lock_key; + + bool need_parent_lock; +}; + +extern int __must_check bus_register(struct bus_type *bus); + +extern void bus_unregister(struct bus_type *bus); + +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); +}; + +#define BUS_ATTR_RW(_name) \ + struct bus_attribute bus_attr_##_name = __ATTR_RW(_name) +#define BUS_ATTR_RO(_name) \ + struct bus_attribute bus_attr_##_name = __ATTR_RO(_name) +#define BUS_ATTR_WO(_name) \ + struct bus_attribute bus_attr_##_name = __ATTR_WO(_name) + +extern int __must_check bus_create_file(struct bus_type *, + struct bus_attribute *); +extern void bus_remove_file(struct bus_type *, struct bus_attribute *); + +/* Generic device matching functions that all busses can use to match with */ +int device_match_name(struct device *dev, const void *name); +int device_match_of_node(struct device *dev, const void *np); +int device_match_fwnode(struct device *dev, const void *fwnode); +int device_match_devt(struct device *dev, const void *pdevt); +int device_match_acpi_dev(struct device *dev, const void *adev); +int device_match_any(struct device *dev, const void *unused); + +/* iterator helpers for buses */ +struct subsys_dev_iter { + struct klist_iter ki; + const struct device_type *type; +}; +void subsys_dev_iter_init(struct subsys_dev_iter *iter, + struct bus_type *subsys, + struct device *start, + const struct device_type *type); +struct device *subsys_dev_iter_next(struct subsys_dev_iter *iter); +void subsys_dev_iter_exit(struct subsys_dev_iter *iter); + +int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, + int (*fn)(struct device *dev, void *data)); +struct device *bus_find_device(struct bus_type *bus, struct device *start, + const void *data, + int (*match)(struct device *dev, const void *data)); +/** + * bus_find_device_by_name - device iterator for locating a particular device + * of a specific name. + * @bus: bus type + * @start: Device to begin with + * @name: name of the device to match + */ +static inline struct device *bus_find_device_by_name(struct bus_type *bus, + struct device *start, + const char *name) +{ + return bus_find_device(bus, start, name, device_match_name); +} + +/** + * bus_find_device_by_of_node : device iterator for locating a particular device + * matching the of_node. + * @bus: bus type + * @np: of_node of the device to match. + */ +static inline struct device * +bus_find_device_by_of_node(struct bus_type *bus, const struct device_node *np) +{ + return bus_find_device(bus, NULL, np, device_match_of_node); +} + +/** + * bus_find_device_by_fwnode : device iterator for locating a particular device + * matching the fwnode. + * @bus: bus type + * @fwnode: fwnode of the device to match. + */ +static inline struct device * +bus_find_device_by_fwnode(struct bus_type *bus, const struct fwnode_handle *fwnode) +{ + return bus_find_device(bus, NULL, fwnode, device_match_fwnode); +} + +/** + * bus_find_device_by_devt : device iterator for locating a particular device + * matching the device type. + * @bus: bus type + * @devt: device type of the device to match. + */ +static inline struct device *bus_find_device_by_devt(struct bus_type *bus, + dev_t devt) +{ + return bus_find_device(bus, NULL, &devt, device_match_devt); +} + +/** + * bus_find_next_device - Find the next device after a given device in a + * given bus. + * @bus: bus type + * @cur: device to begin the search with. + */ +static inline struct device * +bus_find_next_device(struct bus_type *bus,struct device *cur) +{ + return bus_find_device(bus, cur, NULL, device_match_any); +} + +#ifdef CONFIG_ACPI +struct acpi_device; + +/** + * bus_find_device_by_acpi_dev : device iterator for locating a particular device + * matching the ACPI COMPANION device. + * @bus: bus type + * @adev: ACPI COMPANION device to match. + */ +static inline struct device * +bus_find_device_by_acpi_dev(struct bus_type *bus, const struct acpi_device *adev) +{ + return bus_find_device(bus, NULL, adev, device_match_acpi_dev); +} +#else +static inline struct device * +bus_find_device_by_acpi_dev(struct bus_type *bus, const void *adev) +{ + return NULL; +} +#endif + +struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id, + struct device *hint); +int bus_for_each_drv(struct bus_type *bus, struct device_driver *start, + void *data, int (*fn)(struct device_driver *, void *)); +void bus_sort_breadthfirst(struct bus_type *bus, + int (*compare)(const struct device *a, + const struct device *b)); +/* + * Bus notifiers: Get notified of addition/removal of devices + * and binding/unbinding of drivers to devices. + * In the long run, it should be a replacement for the platform + * notify hooks. + */ +struct notifier_block; + +extern int bus_register_notifier(struct bus_type *bus, + struct notifier_block *nb); +extern int bus_unregister_notifier(struct bus_type *bus, + struct notifier_block *nb); + +/* All 4 notifers below get called with the target struct device * + * as an argument. Note that those functions are likely to be called + * with the device lock held in the core, so be careful. + */ +#define BUS_NOTIFY_ADD_DEVICE 0x00000001 /* device added */ +#define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device to be removed */ +#define BUS_NOTIFY_REMOVED_DEVICE 0x00000003 /* device removed */ +#define BUS_NOTIFY_BIND_DRIVER 0x00000004 /* driver about to be + bound */ +#define BUS_NOTIFY_BOUND_DRIVER 0x00000005 /* driver bound to device */ +#define BUS_NOTIFY_UNBIND_DRIVER 0x00000006 /* driver about to be + unbound */ +#define BUS_NOTIFY_UNBOUND_DRIVER 0x00000007 /* driver is unbound + from the device */ +#define BUS_NOTIFY_DRIVER_NOT_BOUND 0x00000008 /* driver fails to be bound */ + +extern struct kset *bus_get_kset(struct bus_type *bus); +extern struct klist *bus_get_device_klist(struct bus_type *bus); + +#endif -- cgit From a8ae608529ab1b71a3830895f98a107be90fed48 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 9 Dec 2019 20:33:02 +0100 Subject: device.h: move 'struct class' stuff out to device/class.h device.h has everything and the kitchen sink when it comes to struct device things, so split out the struct class things things to a separate .h file to make things easier to maintain and manage over time. Cc: "Rafael J. Wysocki" Cc: Suzuki K Poulose Cc: Saravana Kannan Cc: Heikki Krogerus Link: https://lore.kernel.org/r/20191209193303.1694546-6-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 1 + include/linux/device.h | 241 +-------------------------------------- include/linux/device/class.h | 266 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 268 insertions(+), 240 deletions(-) create mode 100644 include/linux/device/class.h (limited to 'include/linux/device') diff --git a/drivers/base/class.c b/drivers/base/class.c index d8a6a5864c2e..bcd410e6d70a 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -8,6 +8,7 @@ * Copyright (c) 2003-2004 IBM Corp. */ +#include #include #include #include diff --git a/include/linux/device.h b/include/linux/device.h index 22fd0b91d0fa..4c261fbd7053 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -27,6 +27,7 @@ #include #include #include +#include #include struct device; @@ -294,246 +295,6 @@ int subsys_system_register(struct bus_type *subsys, int subsys_virtual_register(struct bus_type *subsys, const struct attribute_group **groups); -/** - * struct class - device classes - * @name: Name of the class. - * @owner: The module owner. - * @class_groups: Default attributes of this class. - * @dev_groups: Default attributes of the devices that belong to the class. - * @dev_kobj: The kobject that represents this class and links it into the hierarchy. - * @dev_uevent: Called when a device is added, removed from this class, or a - * few other things that generate uevents to add the environment - * variables. - * @devnode: Callback to provide the devtmpfs. - * @class_release: Called to release this class. - * @dev_release: Called to release the device. - * @shutdown_pre: Called at shut-down time before driver shutdown. - * @ns_type: Callbacks so sysfs can detemine namespaces. - * @namespace: Namespace of the device belongs to this class. - * @get_ownership: Allows class to specify uid/gid of the sysfs directories - * for the devices belonging to the class. Usually tied to - * device's namespace. - * @pm: The default device power management operations of this class. - * @p: The private data of the driver core, no one other than the - * driver core can touch this. - * - * A class is a higher-level view of a device that abstracts out low-level - * implementation details. Drivers may see a SCSI disk or an ATA disk, but, - * at the class level, they are all simply disks. Classes allow user space - * to work with devices based on what they do, rather than how they are - * connected or how they work. - */ -struct class { - const char *name; - struct module *owner; - - const struct attribute_group **class_groups; - const struct attribute_group **dev_groups; - struct kobject *dev_kobj; - - int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); - char *(*devnode)(struct device *dev, umode_t *mode); - - void (*class_release)(struct class *class); - void (*dev_release)(struct device *dev); - - int (*shutdown_pre)(struct device *dev); - - const struct kobj_ns_type_operations *ns_type; - const void *(*namespace)(struct device *dev); - - void (*get_ownership)(struct device *dev, kuid_t *uid, kgid_t *gid); - - const struct dev_pm_ops *pm; - - struct subsys_private *p; -}; - -struct class_dev_iter { - struct klist_iter ki; - const struct device_type *type; -}; - -extern struct kobject *sysfs_dev_block_kobj; -extern struct kobject *sysfs_dev_char_kobj; -extern int __must_check __class_register(struct class *class, - struct lock_class_key *key); -extern void class_unregister(struct class *class); - -/* This is a #define to keep the compiler from merging different - * instances of the __key variable */ -#define class_register(class) \ -({ \ - static struct lock_class_key __key; \ - __class_register(class, &__key); \ -}) - -struct class_compat; -struct class_compat *class_compat_register(const char *name); -void class_compat_unregister(struct class_compat *cls); -int class_compat_create_link(struct class_compat *cls, struct device *dev, - struct device *device_link); -void class_compat_remove_link(struct class_compat *cls, struct device *dev, - struct device *device_link); - -extern void class_dev_iter_init(struct class_dev_iter *iter, - struct class *class, - struct device *start, - const struct device_type *type); -extern struct device *class_dev_iter_next(struct class_dev_iter *iter); -extern void class_dev_iter_exit(struct class_dev_iter *iter); - -extern int class_for_each_device(struct class *class, struct device *start, - void *data, - int (*fn)(struct device *dev, void *data)); -extern struct device *class_find_device(struct class *class, - struct device *start, const void *data, - int (*match)(struct device *, const void *)); - -/** - * class_find_device_by_name - device iterator for locating a particular device - * of a specific name. - * @class: class type - * @name: name of the device to match - */ -static inline struct device *class_find_device_by_name(struct class *class, - const char *name) -{ - return class_find_device(class, NULL, name, device_match_name); -} - -/** - * class_find_device_by_of_node : device iterator for locating a particular device - * matching the of_node. - * @class: class type - * @np: of_node of the device to match. - */ -static inline struct device * -class_find_device_by_of_node(struct class *class, const struct device_node *np) -{ - return class_find_device(class, NULL, np, device_match_of_node); -} - -/** - * class_find_device_by_fwnode : device iterator for locating a particular device - * matching the fwnode. - * @class: class type - * @fwnode: fwnode of the device to match. - */ -static inline struct device * -class_find_device_by_fwnode(struct class *class, - const struct fwnode_handle *fwnode) -{ - return class_find_device(class, NULL, fwnode, device_match_fwnode); -} - -/** - * class_find_device_by_devt : device iterator for locating a particular device - * matching the device type. - * @class: class type - * @devt: device type of the device to match. - */ -static inline struct device *class_find_device_by_devt(struct class *class, - dev_t devt) -{ - return class_find_device(class, NULL, &devt, device_match_devt); -} - -#ifdef CONFIG_ACPI -struct acpi_device; -/** - * class_find_device_by_acpi_dev : device iterator for locating a particular - * device matching the ACPI_COMPANION device. - * @class: class type - * @adev: ACPI_COMPANION device to match. - */ -static inline struct device * -class_find_device_by_acpi_dev(struct class *class, const struct acpi_device *adev) -{ - return class_find_device(class, NULL, adev, device_match_acpi_dev); -} -#else -static inline struct device * -class_find_device_by_acpi_dev(struct class *class, const void *adev) -{ - return NULL; -} -#endif - -struct class_attribute { - struct attribute attr; - ssize_t (*show)(struct class *class, struct class_attribute *attr, - char *buf); - ssize_t (*store)(struct class *class, struct class_attribute *attr, - const char *buf, size_t count); -}; - -#define CLASS_ATTR_RW(_name) \ - struct class_attribute class_attr_##_name = __ATTR_RW(_name) -#define CLASS_ATTR_RO(_name) \ - struct class_attribute class_attr_##_name = __ATTR_RO(_name) -#define CLASS_ATTR_WO(_name) \ - struct class_attribute class_attr_##_name = __ATTR_WO(_name) - -extern int __must_check class_create_file_ns(struct class *class, - const struct class_attribute *attr, - const void *ns); -extern void class_remove_file_ns(struct class *class, - const struct class_attribute *attr, - const void *ns); - -static inline int __must_check class_create_file(struct class *class, - const struct class_attribute *attr) -{ - return class_create_file_ns(class, attr, NULL); -} - -static inline void class_remove_file(struct class *class, - const struct class_attribute *attr) -{ - return class_remove_file_ns(class, attr, NULL); -} - -/* Simple class attribute that is just a static string */ -struct class_attribute_string { - struct class_attribute attr; - char *str; -}; - -/* Currently read-only only */ -#define _CLASS_ATTR_STRING(_name, _mode, _str) \ - { __ATTR(_name, _mode, show_class_attr_string, NULL), _str } -#define CLASS_ATTR_STRING(_name, _mode, _str) \ - struct class_attribute_string class_attr_##_name = \ - _CLASS_ATTR_STRING(_name, _mode, _str) - -extern ssize_t show_class_attr_string(struct class *class, struct class_attribute *attr, - char *buf); - -struct class_interface { - struct list_head node; - struct class *class; - - int (*add_dev) (struct device *, struct class_interface *); - void (*remove_dev) (struct device *, struct class_interface *); -}; - -extern int __must_check class_interface_register(struct class_interface *); -extern void class_interface_unregister(struct class_interface *); - -extern struct class * __must_check __class_create(struct module *owner, - const char *name, - struct lock_class_key *key); -extern void class_destroy(struct class *cls); - -/* This is a #define to keep the compiler from merging different - * instances of the __key variable */ -#define class_create(owner, name) \ -({ \ - static struct lock_class_key __key; \ - __class_create(owner, name, &__key); \ -}) - /* * The type of device, "struct device" is embedded in. A class * or bus can contain devices of different types diff --git a/include/linux/device/class.h b/include/linux/device/class.h new file mode 100644 index 000000000000..e8d470c457d1 --- /dev/null +++ b/include/linux/device/class.h @@ -0,0 +1,266 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * The class-specific portions of the driver model + * + * Copyright (c) 2001-2003 Patrick Mochel + * Copyright (c) 2004-2009 Greg Kroah-Hartman + * Copyright (c) 2008-2009 Novell Inc. + * Copyright (c) 2012-2019 Greg Kroah-Hartman + * Copyright (c) 2012-2019 Linux Foundation + * + * See Documentation/driver-api/driver-model/ for more information. + */ + +#ifndef _DEVICE_CLASS_H_ +#define _DEVICE_CLASS_H_ + +#include +#include +#include +#include + +struct device; +struct fwnode_handle; + +/** + * struct class - device classes + * @name: Name of the class. + * @owner: The module owner. + * @class_groups: Default attributes of this class. + * @dev_groups: Default attributes of the devices that belong to the class. + * @dev_kobj: The kobject that represents this class and links it into the hierarchy. + * @dev_uevent: Called when a device is added, removed from this class, or a + * few other things that generate uevents to add the environment + * variables. + * @devnode: Callback to provide the devtmpfs. + * @class_release: Called to release this class. + * @dev_release: Called to release the device. + * @shutdown_pre: Called at shut-down time before driver shutdown. + * @ns_type: Callbacks so sysfs can detemine namespaces. + * @namespace: Namespace of the device belongs to this class. + * @get_ownership: Allows class to specify uid/gid of the sysfs directories + * for the devices belonging to the class. Usually tied to + * device's namespace. + * @pm: The default device power management operations of this class. + * @p: The private data of the driver core, no one other than the + * driver core can touch this. + * + * A class is a higher-level view of a device that abstracts out low-level + * implementation details. Drivers may see a SCSI disk or an ATA disk, but, + * at the class level, they are all simply disks. Classes allow user space + * to work with devices based on what they do, rather than how they are + * connected or how they work. + */ +struct class { + const char *name; + struct module *owner; + + const struct attribute_group **class_groups; + const struct attribute_group **dev_groups; + struct kobject *dev_kobj; + + int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); + char *(*devnode)(struct device *dev, umode_t *mode); + + void (*class_release)(struct class *class); + void (*dev_release)(struct device *dev); + + int (*shutdown_pre)(struct device *dev); + + const struct kobj_ns_type_operations *ns_type; + const void *(*namespace)(struct device *dev); + + void (*get_ownership)(struct device *dev, kuid_t *uid, kgid_t *gid); + + const struct dev_pm_ops *pm; + + struct subsys_private *p; +}; + +struct class_dev_iter { + struct klist_iter ki; + const struct device_type *type; +}; + +extern struct kobject *sysfs_dev_block_kobj; +extern struct kobject *sysfs_dev_char_kobj; +extern int __must_check __class_register(struct class *class, + struct lock_class_key *key); +extern void class_unregister(struct class *class); + +/* This is a #define to keep the compiler from merging different + * instances of the __key variable */ +#define class_register(class) \ +({ \ + static struct lock_class_key __key; \ + __class_register(class, &__key); \ +}) + +struct class_compat; +struct class_compat *class_compat_register(const char *name); +void class_compat_unregister(struct class_compat *cls); +int class_compat_create_link(struct class_compat *cls, struct device *dev, + struct device *device_link); +void class_compat_remove_link(struct class_compat *cls, struct device *dev, + struct device *device_link); + +extern void class_dev_iter_init(struct class_dev_iter *iter, + struct class *class, + struct device *start, + const struct device_type *type); +extern struct device *class_dev_iter_next(struct class_dev_iter *iter); +extern void class_dev_iter_exit(struct class_dev_iter *iter); + +extern int class_for_each_device(struct class *class, struct device *start, + void *data, + int (*fn)(struct device *dev, void *data)); +extern struct device *class_find_device(struct class *class, + struct device *start, const void *data, + int (*match)(struct device *, const void *)); + +/** + * class_find_device_by_name - device iterator for locating a particular device + * of a specific name. + * @class: class type + * @name: name of the device to match + */ +static inline struct device *class_find_device_by_name(struct class *class, + const char *name) +{ + return class_find_device(class, NULL, name, device_match_name); +} + +/** + * class_find_device_by_of_node : device iterator for locating a particular device + * matching the of_node. + * @class: class type + * @np: of_node of the device to match. + */ +static inline struct device * +class_find_device_by_of_node(struct class *class, const struct device_node *np) +{ + return class_find_device(class, NULL, np, device_match_of_node); +} + +/** + * class_find_device_by_fwnode : device iterator for locating a particular device + * matching the fwnode. + * @class: class type + * @fwnode: fwnode of the device to match. + */ +static inline struct device * +class_find_device_by_fwnode(struct class *class, + const struct fwnode_handle *fwnode) +{ + return class_find_device(class, NULL, fwnode, device_match_fwnode); +} + +/** + * class_find_device_by_devt : device iterator for locating a particular device + * matching the device type. + * @class: class type + * @devt: device type of the device to match. + */ +static inline struct device *class_find_device_by_devt(struct class *class, + dev_t devt) +{ + return class_find_device(class, NULL, &devt, device_match_devt); +} + +#ifdef CONFIG_ACPI +struct acpi_device; +/** + * class_find_device_by_acpi_dev : device iterator for locating a particular + * device matching the ACPI_COMPANION device. + * @class: class type + * @adev: ACPI_COMPANION device to match. + */ +static inline struct device * +class_find_device_by_acpi_dev(struct class *class, const struct acpi_device *adev) +{ + return class_find_device(class, NULL, adev, device_match_acpi_dev); +} +#else +static inline struct device * +class_find_device_by_acpi_dev(struct class *class, const void *adev) +{ + return NULL; +} +#endif + +struct class_attribute { + struct attribute attr; + ssize_t (*show)(struct class *class, struct class_attribute *attr, + char *buf); + ssize_t (*store)(struct class *class, struct class_attribute *attr, + const char *buf, size_t count); +}; + +#define CLASS_ATTR_RW(_name) \ + struct class_attribute class_attr_##_name = __ATTR_RW(_name) +#define CLASS_ATTR_RO(_name) \ + struct class_attribute class_attr_##_name = __ATTR_RO(_name) +#define CLASS_ATTR_WO(_name) \ + struct class_attribute class_attr_##_name = __ATTR_WO(_name) + +extern int __must_check class_create_file_ns(struct class *class, + const struct class_attribute *attr, + const void *ns); +extern void class_remove_file_ns(struct class *class, + const struct class_attribute *attr, + const void *ns); + +static inline int __must_check class_create_file(struct class *class, + const struct class_attribute *attr) +{ + return class_create_file_ns(class, attr, NULL); +} + +static inline void class_remove_file(struct class *class, + const struct class_attribute *attr) +{ + return class_remove_file_ns(class, attr, NULL); +} + +/* Simple class attribute that is just a static string */ +struct class_attribute_string { + struct class_attribute attr; + char *str; +}; + +/* Currently read-only only */ +#define _CLASS_ATTR_STRING(_name, _mode, _str) \ + { __ATTR(_name, _mode, show_class_attr_string, NULL), _str } +#define CLASS_ATTR_STRING(_name, _mode, _str) \ + struct class_attribute_string class_attr_##_name = \ + _CLASS_ATTR_STRING(_name, _mode, _str) + +extern ssize_t show_class_attr_string(struct class *class, struct class_attribute *attr, + char *buf); + +struct class_interface { + struct list_head node; + struct class *class; + + int (*add_dev) (struct device *, struct class_interface *); + void (*remove_dev) (struct device *, struct class_interface *); +}; + +extern int __must_check class_interface_register(struct class_interface *); +extern void class_interface_unregister(struct class_interface *); + +extern struct class * __must_check __class_create(struct module *owner, + const char *name, + struct lock_class_key *key); +extern void class_destroy(struct class *cls); + +/* This is a #define to keep the compiler from merging different + * instances of the __key variable */ +#define class_create(owner, name) \ +({ \ + static struct lock_class_key __key; \ + __class_create(owner, name, &__key); \ +}) + + +#endif /* _DEVICE_CLASS_H_ */ -- cgit From 4c002c978b7f2f2306d53de051c054504af920a9 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 9 Dec 2019 20:33:03 +0100 Subject: device.h: move 'struct driver' stuff out to device/driver.h device.h has everything and the kitchen sink when it comes to struct device things, so split out the struct driver things things to a separate .h file to make things easier to maintain and manage over time. Cc: "Rafael J. Wysocki" Cc: Suzuki K Poulose Cc: Saravana Kannan Cc: Heikki Krogerus Link: https://lore.kernel.org/r/20191209193303.1694546-7-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/base/driver.c | 1 + include/linux/device.h | 272 +-------------------------------------- include/linux/device/driver.h | 292 ++++++++++++++++++++++++++++++++++++++++++ init/main.c | 2 +- 4 files changed, 295 insertions(+), 272 deletions(-) create mode 100644 include/linux/device/driver.h (limited to 'include/linux/device') diff --git a/drivers/base/driver.c b/drivers/base/driver.c index 4e5ca632f35e..57c68769e157 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -8,6 +8,7 @@ * Copyright (c) 2007 Novell Inc. */ +#include #include #include #include diff --git a/include/linux/device.h b/include/linux/device.h index 4c261fbd7053..0cd7c647c16c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -28,6 +28,7 @@ #include #include #include +#include #include struct device; @@ -45,227 +46,6 @@ struct iommu_fwspec; struct dev_pin_info; struct iommu_param; -/** - * enum probe_type - device driver probe type to try - * Device drivers may opt in for special handling of their - * respective probe routines. This tells the core what to - * expect and prefer. - * - * @PROBE_DEFAULT_STRATEGY: Used by drivers that work equally well - * whether probed synchronously or asynchronously. - * @PROBE_PREFER_ASYNCHRONOUS: Drivers for "slow" devices which - * probing order is not essential for booting the system may - * opt into executing their probes asynchronously. - * @PROBE_FORCE_SYNCHRONOUS: Use this to annotate drivers that need - * their probe routines to run synchronously with driver and - * device registration (with the exception of -EPROBE_DEFER - * handling - re-probing always ends up being done asynchronously). - * - * Note that the end goal is to switch the kernel to use asynchronous - * probing by default, so annotating drivers with - * %PROBE_PREFER_ASYNCHRONOUS is a temporary measure that allows us - * to speed up boot process while we are validating the rest of the - * drivers. - */ -enum probe_type { - PROBE_DEFAULT_STRATEGY, - PROBE_PREFER_ASYNCHRONOUS, - PROBE_FORCE_SYNCHRONOUS, -}; - -/** - * struct device_driver - The basic device driver structure - * @name: Name of the device driver. - * @bus: The bus which the device of this driver belongs to. - * @owner: The module owner. - * @mod_name: Used for built-in modules. - * @suppress_bind_attrs: Disables bind/unbind via sysfs. - * @probe_type: Type of the probe (synchronous or asynchronous) to use. - * @of_match_table: The open firmware table. - * @acpi_match_table: The ACPI match table. - * @probe: Called to query the existence of a specific device, - * whether this driver can work with it, and bind the driver - * to a specific device. - * @sync_state: Called to sync device state to software state after all the - * state tracking consumers linked to this device (present at - * the time of late_initcall) have successfully bound to a - * driver. If the device has no consumers, this function will - * be called at late_initcall_sync level. If the device has - * consumers that are never bound to a driver, this function - * will never get called until they do. - * @remove: Called when the device is removed from the system to - * unbind a device from this driver. - * @shutdown: Called at shut-down time to quiesce the device. - * @suspend: Called to put the device to sleep mode. Usually to a - * low power state. - * @resume: Called to bring a device from sleep mode. - * @groups: Default attributes that get created by the driver core - * automatically. - * @dev_groups: Additional attributes attached to device instance once the - * it is bound to the driver. - * @pm: Power management operations of the device which matched - * this driver. - * @coredump: Called when sysfs entry is written to. The device driver - * is expected to call the dev_coredump API resulting in a - * uevent. - * @p: Driver core's private data, no one other than the driver - * core can touch this. - * - * The device driver-model tracks all of the drivers known to the system. - * The main reason for this tracking is to enable the driver core to match - * up drivers with new devices. Once drivers are known objects within the - * system, however, a number of other things become possible. Device drivers - * can export information and configuration variables that are independent - * of any specific device. - */ -struct device_driver { - const char *name; - struct bus_type *bus; - - struct module *owner; - const char *mod_name; /* used for built-in modules */ - - bool suppress_bind_attrs; /* disables bind/unbind via sysfs */ - enum probe_type probe_type; - - const struct of_device_id *of_match_table; - const struct acpi_device_id *acpi_match_table; - - int (*probe) (struct device *dev); - void (*sync_state)(struct device *dev); - int (*remove) (struct device *dev); - void (*shutdown) (struct device *dev); - int (*suspend) (struct device *dev, pm_message_t state); - int (*resume) (struct device *dev); - const struct attribute_group **groups; - const struct attribute_group **dev_groups; - - const struct dev_pm_ops *pm; - void (*coredump) (struct device *dev); - - struct driver_private *p; -}; - - -extern int __must_check driver_register(struct device_driver *drv); -extern void driver_unregister(struct device_driver *drv); - -extern struct device_driver *driver_find(const char *name, - struct bus_type *bus); -extern int driver_probe_done(void); -extern void wait_for_device_probe(void); - -/* sysfs interface for exporting driver attributes */ - -struct driver_attribute { - struct attribute attr; - ssize_t (*show)(struct device_driver *driver, char *buf); - ssize_t (*store)(struct device_driver *driver, const char *buf, - size_t count); -}; - -#define DRIVER_ATTR_RW(_name) \ - struct driver_attribute driver_attr_##_name = __ATTR_RW(_name) -#define DRIVER_ATTR_RO(_name) \ - struct driver_attribute driver_attr_##_name = __ATTR_RO(_name) -#define DRIVER_ATTR_WO(_name) \ - struct driver_attribute driver_attr_##_name = __ATTR_WO(_name) - -extern int __must_check driver_create_file(struct device_driver *driver, - const struct driver_attribute *attr); -extern void driver_remove_file(struct device_driver *driver, - const struct driver_attribute *attr); - -extern int __must_check driver_for_each_device(struct device_driver *drv, - struct device *start, - void *data, - int (*fn)(struct device *dev, - void *)); -struct device *driver_find_device(struct device_driver *drv, - struct device *start, const void *data, - int (*match)(struct device *dev, const void *data)); - -/** - * driver_find_device_by_name - device iterator for locating a particular device - * of a specific name. - * @drv: the driver we're iterating - * @name: name of the device to match - */ -static inline struct device *driver_find_device_by_name(struct device_driver *drv, - const char *name) -{ - return driver_find_device(drv, NULL, name, device_match_name); -} - -/** - * driver_find_device_by_of_node- device iterator for locating a particular device - * by of_node pointer. - * @drv: the driver we're iterating - * @np: of_node pointer to match. - */ -static inline struct device * -driver_find_device_by_of_node(struct device_driver *drv, - const struct device_node *np) -{ - return driver_find_device(drv, NULL, np, device_match_of_node); -} - -/** - * driver_find_device_by_fwnode- device iterator for locating a particular device - * by fwnode pointer. - * @drv: the driver we're iterating - * @fwnode: fwnode pointer to match. - */ -static inline struct device * -driver_find_device_by_fwnode(struct device_driver *drv, - const struct fwnode_handle *fwnode) -{ - return driver_find_device(drv, NULL, fwnode, device_match_fwnode); -} - -/** - * driver_find_device_by_devt- device iterator for locating a particular device - * by devt. - * @drv: the driver we're iterating - * @devt: devt pointer to match. - */ -static inline struct device *driver_find_device_by_devt(struct device_driver *drv, - dev_t devt) -{ - return driver_find_device(drv, NULL, &devt, device_match_devt); -} - -static inline struct device *driver_find_next_device(struct device_driver *drv, - struct device *start) -{ - return driver_find_device(drv, start, NULL, device_match_any); -} - -#ifdef CONFIG_ACPI -/** - * driver_find_device_by_acpi_dev : device iterator for locating a particular - * device matching the ACPI_COMPANION device. - * @drv: the driver we're iterating - * @adev: ACPI_COMPANION device to match. - */ -static inline struct device * -driver_find_device_by_acpi_dev(struct device_driver *drv, - const struct acpi_device *adev) -{ - return driver_find_device(drv, NULL, adev, device_match_acpi_dev); -} -#else -static inline struct device * -driver_find_device_by_acpi_dev(struct device_driver *drv, const void *adev) -{ - return NULL; -} -#endif - -void driver_deferred_probe_add(struct device *dev); -int driver_deferred_probe_check_state(struct device *dev); -int driver_deferred_probe_check_state_continue(struct device *dev); - /** * struct subsys_interface - interfaces to device functions * @name: name of the device function @@ -1018,8 +798,6 @@ static inline struct device_node *dev_of_node(struct device *dev) return dev->of_node; } -void driver_init(void); - /* * High level routines for use by the bus drivers */ @@ -1193,52 +971,4 @@ extern long sysfs_deprecated; #define sysfs_deprecated 0 #endif -/** - * module_driver() - Helper macro for drivers that don't do anything - * special in module init/exit. This eliminates a lot of boilerplate. - * Each module may only use this macro once, and calling it replaces - * module_init() and module_exit(). - * - * @__driver: driver name - * @__register: register function for this driver type - * @__unregister: unregister function for this driver type - * @...: Additional arguments to be passed to __register and __unregister. - * - * Use this macro to construct bus specific macros for registering - * drivers, and do not use it on its own. - */ -#define module_driver(__driver, __register, __unregister, ...) \ -static int __init __driver##_init(void) \ -{ \ - return __register(&(__driver) , ##__VA_ARGS__); \ -} \ -module_init(__driver##_init); \ -static void __exit __driver##_exit(void) \ -{ \ - __unregister(&(__driver) , ##__VA_ARGS__); \ -} \ -module_exit(__driver##_exit); - -/** - * builtin_driver() - Helper macro for drivers that don't do anything - * special in init and have no exit. This eliminates some boilerplate. - * Each driver may only use this macro once, and calling it replaces - * device_initcall (or in some cases, the legacy __initcall). This is - * meant to be a direct parallel of module_driver() above but without - * the __exit stuff that is not used for builtin cases. - * - * @__driver: driver name - * @__register: register function for this driver type - * @...: Additional arguments to be passed to __register - * - * Use this macro to construct bus specific macros for registering - * drivers, and do not use it on its own. - */ -#define builtin_driver(__driver, __register, ...) \ -static int __init __driver##_init(void) \ -{ \ - return __register(&(__driver) , ##__VA_ARGS__); \ -} \ -device_initcall(__driver##_init); - #endif /* _DEVICE_H_ */ diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h new file mode 100644 index 000000000000..1188260f9a02 --- /dev/null +++ b/include/linux/device/driver.h @@ -0,0 +1,292 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * The driver-specific portions of the driver model + * + * Copyright (c) 2001-2003 Patrick Mochel + * Copyright (c) 2004-2009 Greg Kroah-Hartman + * Copyright (c) 2008-2009 Novell Inc. + * Copyright (c) 2012-2019 Greg Kroah-Hartman + * Copyright (c) 2012-2019 Linux Foundation + * + * See Documentation/driver-api/driver-model/ for more information. + */ + +#ifndef _DEVICE_DRIVER_H_ +#define _DEVICE_DRIVER_H_ + +#include +#include +#include +#include + +/** + * enum probe_type - device driver probe type to try + * Device drivers may opt in for special handling of their + * respective probe routines. This tells the core what to + * expect and prefer. + * + * @PROBE_DEFAULT_STRATEGY: Used by drivers that work equally well + * whether probed synchronously or asynchronously. + * @PROBE_PREFER_ASYNCHRONOUS: Drivers for "slow" devices which + * probing order is not essential for booting the system may + * opt into executing their probes asynchronously. + * @PROBE_FORCE_SYNCHRONOUS: Use this to annotate drivers that need + * their probe routines to run synchronously with driver and + * device registration (with the exception of -EPROBE_DEFER + * handling - re-probing always ends up being done asynchronously). + * + * Note that the end goal is to switch the kernel to use asynchronous + * probing by default, so annotating drivers with + * %PROBE_PREFER_ASYNCHRONOUS is a temporary measure that allows us + * to speed up boot process while we are validating the rest of the + * drivers. + */ +enum probe_type { + PROBE_DEFAULT_STRATEGY, + PROBE_PREFER_ASYNCHRONOUS, + PROBE_FORCE_SYNCHRONOUS, +}; + +/** + * struct device_driver - The basic device driver structure + * @name: Name of the device driver. + * @bus: The bus which the device of this driver belongs to. + * @owner: The module owner. + * @mod_name: Used for built-in modules. + * @suppress_bind_attrs: Disables bind/unbind via sysfs. + * @probe_type: Type of the probe (synchronous or asynchronous) to use. + * @of_match_table: The open firmware table. + * @acpi_match_table: The ACPI match table. + * @probe: Called to query the existence of a specific device, + * whether this driver can work with it, and bind the driver + * to a specific device. + * @sync_state: Called to sync device state to software state after all the + * state tracking consumers linked to this device (present at + * the time of late_initcall) have successfully bound to a + * driver. If the device has no consumers, this function will + * be called at late_initcall_sync level. If the device has + * consumers that are never bound to a driver, this function + * will never get called until they do. + * @remove: Called when the device is removed from the system to + * unbind a device from this driver. + * @shutdown: Called at shut-down time to quiesce the device. + * @suspend: Called to put the device to sleep mode. Usually to a + * low power state. + * @resume: Called to bring a device from sleep mode. + * @groups: Default attributes that get created by the driver core + * automatically. + * @dev_groups: Additional attributes attached to device instance once the + * it is bound to the driver. + * @pm: Power management operations of the device which matched + * this driver. + * @coredump: Called when sysfs entry is written to. The device driver + * is expected to call the dev_coredump API resulting in a + * uevent. + * @p: Driver core's private data, no one other than the driver + * core can touch this. + * + * The device driver-model tracks all of the drivers known to the system. + * The main reason for this tracking is to enable the driver core to match + * up drivers with new devices. Once drivers are known objects within the + * system, however, a number of other things become possible. Device drivers + * can export information and configuration variables that are independent + * of any specific device. + */ +struct device_driver { + const char *name; + struct bus_type *bus; + + struct module *owner; + const char *mod_name; /* used for built-in modules */ + + bool suppress_bind_attrs; /* disables bind/unbind via sysfs */ + enum probe_type probe_type; + + const struct of_device_id *of_match_table; + const struct acpi_device_id *acpi_match_table; + + int (*probe) (struct device *dev); + void (*sync_state)(struct device *dev); + int (*remove) (struct device *dev); + void (*shutdown) (struct device *dev); + int (*suspend) (struct device *dev, pm_message_t state); + int (*resume) (struct device *dev); + const struct attribute_group **groups; + const struct attribute_group **dev_groups; + + const struct dev_pm_ops *pm; + void (*coredump) (struct device *dev); + + struct driver_private *p; +}; + + +extern int __must_check driver_register(struct device_driver *drv); +extern void driver_unregister(struct device_driver *drv); + +extern struct device_driver *driver_find(const char *name, + struct bus_type *bus); +extern int driver_probe_done(void); +extern void wait_for_device_probe(void); + +/* sysfs interface for exporting driver attributes */ + +struct driver_attribute { + struct attribute attr; + ssize_t (*show)(struct device_driver *driver, char *buf); + ssize_t (*store)(struct device_driver *driver, const char *buf, + size_t count); +}; + +#define DRIVER_ATTR_RW(_name) \ + struct driver_attribute driver_attr_##_name = __ATTR_RW(_name) +#define DRIVER_ATTR_RO(_name) \ + struct driver_attribute driver_attr_##_name = __ATTR_RO(_name) +#define DRIVER_ATTR_WO(_name) \ + struct driver_attribute driver_attr_##_name = __ATTR_WO(_name) + +extern int __must_check driver_create_file(struct device_driver *driver, + const struct driver_attribute *attr); +extern void driver_remove_file(struct device_driver *driver, + const struct driver_attribute *attr); + +extern int __must_check driver_for_each_device(struct device_driver *drv, + struct device *start, + void *data, + int (*fn)(struct device *dev, + void *)); +struct device *driver_find_device(struct device_driver *drv, + struct device *start, const void *data, + int (*match)(struct device *dev, const void *data)); + +/** + * driver_find_device_by_name - device iterator for locating a particular device + * of a specific name. + * @drv: the driver we're iterating + * @name: name of the device to match + */ +static inline struct device *driver_find_device_by_name(struct device_driver *drv, + const char *name) +{ + return driver_find_device(drv, NULL, name, device_match_name); +} + +/** + * driver_find_device_by_of_node- device iterator for locating a particular device + * by of_node pointer. + * @drv: the driver we're iterating + * @np: of_node pointer to match. + */ +static inline struct device * +driver_find_device_by_of_node(struct device_driver *drv, + const struct device_node *np) +{ + return driver_find_device(drv, NULL, np, device_match_of_node); +} + +/** + * driver_find_device_by_fwnode- device iterator for locating a particular device + * by fwnode pointer. + * @drv: the driver we're iterating + * @fwnode: fwnode pointer to match. + */ +static inline struct device * +driver_find_device_by_fwnode(struct device_driver *drv, + const struct fwnode_handle *fwnode) +{ + return driver_find_device(drv, NULL, fwnode, device_match_fwnode); +} + +/** + * driver_find_device_by_devt- device iterator for locating a particular device + * by devt. + * @drv: the driver we're iterating + * @devt: devt pointer to match. + */ +static inline struct device *driver_find_device_by_devt(struct device_driver *drv, + dev_t devt) +{ + return driver_find_device(drv, NULL, &devt, device_match_devt); +} + +static inline struct device *driver_find_next_device(struct device_driver *drv, + struct device *start) +{ + return driver_find_device(drv, start, NULL, device_match_any); +} + +#ifdef CONFIG_ACPI +/** + * driver_find_device_by_acpi_dev : device iterator for locating a particular + * device matching the ACPI_COMPANION device. + * @drv: the driver we're iterating + * @adev: ACPI_COMPANION device to match. + */ +static inline struct device * +driver_find_device_by_acpi_dev(struct device_driver *drv, + const struct acpi_device *adev) +{ + return driver_find_device(drv, NULL, adev, device_match_acpi_dev); +} +#else +static inline struct device * +driver_find_device_by_acpi_dev(struct device_driver *drv, const void *adev) +{ + return NULL; +} +#endif + +void driver_deferred_probe_add(struct device *dev); +int driver_deferred_probe_check_state(struct device *dev); +int driver_deferred_probe_check_state_continue(struct device *dev); +void driver_init(void); + +/** + * module_driver() - Helper macro for drivers that don't do anything + * special in module init/exit. This eliminates a lot of boilerplate. + * Each module may only use this macro once, and calling it replaces + * module_init() and module_exit(). + * + * @__driver: driver name + * @__register: register function for this driver type + * @__unregister: unregister function for this driver type + * @...: Additional arguments to be passed to __register and __unregister. + * + * Use this macro to construct bus specific macros for registering + * drivers, and do not use it on its own. + */ +#define module_driver(__driver, __register, __unregister, ...) \ +static int __init __driver##_init(void) \ +{ \ + return __register(&(__driver) , ##__VA_ARGS__); \ +} \ +module_init(__driver##_init); \ +static void __exit __driver##_exit(void) \ +{ \ + __unregister(&(__driver) , ##__VA_ARGS__); \ +} \ +module_exit(__driver##_exit); + +/** + * builtin_driver() - Helper macro for drivers that don't do anything + * special in init and have no exit. This eliminates some boilerplate. + * Each driver may only use this macro once, and calling it replaces + * device_initcall (or in some cases, the legacy __initcall). This is + * meant to be a direct parallel of module_driver() above but without + * the __exit stuff that is not used for builtin cases. + * + * @__driver: driver name + * @__register: register function for this driver type + * @...: Additional arguments to be passed to __register + * + * Use this macro to construct bus specific macros for registering + * drivers, and do not use it on its own. + */ +#define builtin_driver(__driver, __register, ...) \ +static int __init __driver##_init(void) \ +{ \ + return __register(&(__driver) , ##__VA_ARGS__); \ +} \ +device_initcall(__driver##_init); + +#endif /* _DEVICE_DRIVER_H_ */ diff --git a/init/main.c b/init/main.c index ec3a1463ac69..22840d3048b3 100644 --- a/init/main.c +++ b/init/main.c @@ -63,7 +63,7 @@ #include #include #include -#include +#include #include #include #include -- cgit