Hi David,
On Fri, 20 Dec 2019 07:52:09 +0000 David Howells <dhowells@xxxxxxxxxx> wrote:
>
> Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> > I fixed it up (see below) and can carry the fix as necessary.
>
> Um. I don't see anything below.
Sorry about that (see below).
--
Cheers,
Stephen Rothwell
85a7a99c22826b8241ed020a2921f7610682b05c
diff --cc include/linux/device.h
index f32de6466092,0cd7c647c16c..ce6db68c3f29
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@@ -43,492 -45,7 +45,8 @@@ struct iommu_group
struct iommu_fwspec;
struct dev_pin_info;
struct iommu_param;
+struct watch_notification;
- 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 *);
-
- /**
- * 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);
-
- /* 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 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);
-
- 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);
-
- /**
- * 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
@@@ -1688,227 -959,6 +960,12 @@@ void device_link_remove(void *consumer
void device_links_supplier_sync_state_pause(void);
void device_links_supplier_sync_state_resume(void);
+#ifdef CONFIG_DEVICE_NOTIFICATIONS
+extern void post_device_notification(struct watch_notification *n, u64 id);
+#else
+static inline void post_device_notification(struct watch_notification *n, u64 id) {}
+#endif
+
- #ifndef dev_fmt
- #define dev_fmt(fmt) fmt
- #endif
-
- #ifdef CONFIG_PRINTK
-
- __printf(3, 0) __cold
- int dev_vprintk_emit(int level, const struct device *dev,
- const char *fmt, va_list args);
- __printf(3, 4) __cold
- int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...);
-
- __printf(3, 4) __cold
- void dev_printk(const char *level, const struct device *dev,
- const char *fmt, ...);
- __printf(2, 3) __cold
- void _dev_emerg(const struct device *dev, const char *fmt, ...);
- __printf(2, 3) __cold
- void _dev_alert(const struct device *dev, const char *fmt, ...);
- __printf(2, 3) __cold
- void _dev_crit(const struct device *dev, const char *fmt, ...);
- __printf(2, 3) __cold
- void _dev_err(const struct device *dev, const char *fmt, ...);
- __printf(2, 3) __cold
- void _dev_warn(const struct device *dev, const char *fmt, ...);
- __printf(2, 3) __cold
- void _dev_notice(const struct device *dev, const char *fmt, ...);
- __printf(2, 3) __cold
- void _dev_info(const struct device *dev, const char *fmt, ...);
-
- #else
-
- static inline __printf(3, 0)
- int dev_vprintk_emit(int level, const struct device *dev,
- const char *fmt, va_list args)
- { return 0; }
- static inline __printf(3, 4)
- int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...)
- { return 0; }
-
- static inline void __dev_printk(const char *level, const struct device *dev,
- struct va_format *vaf)
- {}
- static inline __printf(3, 4)
- void dev_printk(const char *level, const struct device *dev,
- const char *fmt, ...)
- {}
-
- static inline __printf(2, 3)
- void _dev_emerg(const struct device *dev, const char *fmt, ...)
- {}
- static inline __printf(2, 3)
- void _dev_crit(const struct device *dev, const char *fmt, ...)
- {}
- static inline __printf(2, 3)
- void _dev_alert(const struct device *dev, const char *fmt, ...)
- {}
- static inline __printf(2, 3)
- void _dev_err(const struct device *dev, const char *fmt, ...)
- {}
- static inline __printf(2, 3)
- void _dev_warn(const struct device *dev, const char *fmt, ...)
- {}
- static inline __printf(2, 3)
- void _dev_notice(const struct device *dev, const char *fmt, ...)
- {}
- static inline __printf(2, 3)
- void _dev_info(const struct device *dev, const char *fmt, ...)
- {}
-
- #endif
-
- /*
- * #defines for all the dev_<level> macros to prefix with whatever
- * possible use of #define dev_fmt(fmt) ...
- */
-
- #define dev_emerg(dev, fmt, ...) \
- _dev_emerg(dev, dev_fmt(fmt), ##__VA_ARGS__)
- #define dev_crit(dev, fmt, ...) \
- _dev_crit(dev, dev_fmt(fmt), ##__VA_ARGS__)
- #define dev_alert(dev, fmt, ...) \
- _dev_alert(dev, dev_fmt(fmt), ##__VA_ARGS__)
- #define dev_err(dev, fmt, ...) \
- _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
- #define dev_warn(dev, fmt, ...) \
- _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
- #define dev_notice(dev, fmt, ...) \
- _dev_notice(dev, dev_fmt(fmt), ##__VA_ARGS__)
- #define dev_info(dev, fmt, ...) \
- _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
-
- #if defined(CONFIG_DYNAMIC_DEBUG)
- #define dev_dbg(dev, fmt, ...) \
- dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
- #elif defined(DEBUG)
- #define dev_dbg(dev, fmt, ...) \
- dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__)
- #else
- #define dev_dbg(dev, fmt, ...) \
- ({ \
- if (0) \
- dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
- })
- #endif
-
- #ifdef CONFIG_PRINTK
- #define dev_level_once(dev_level, dev, fmt, ...) \
- do { \
- static bool __print_once __read_mostly; \
- \
- if (!__print_once) { \
- __print_once = true; \
- dev_level(dev, fmt, ##__VA_ARGS__); \
- } \
- } while (0)
- #else
- #define dev_level_once(dev_level, dev, fmt, ...) \
- do { \
- if (0) \
- dev_level(dev, fmt, ##__VA_ARGS__); \
- } while (0)
- #endif
-
- #define dev_emerg_once(dev, fmt, ...) \
- dev_level_once(dev_emerg, dev, fmt, ##__VA_ARGS__)
- #define dev_alert_once(dev, fmt, ...) \
- dev_level_once(dev_alert, dev, fmt, ##__VA_ARGS__)
- #define dev_crit_once(dev, fmt, ...) \
- dev_level_once(dev_crit, dev, fmt, ##__VA_ARGS__)
- #define dev_err_once(dev, fmt, ...) \
- dev_level_once(dev_err, dev, fmt, ##__VA_ARGS__)
- #define dev_warn_once(dev, fmt, ...) \
- dev_level_once(dev_warn, dev, fmt, ##__VA_ARGS__)
- #define dev_notice_once(dev, fmt, ...) \
- dev_level_once(dev_notice, dev, fmt, ##__VA_ARGS__)
- #define dev_info_once(dev, fmt, ...) \
- dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
- #define dev_dbg_once(dev, fmt, ...) \
- dev_level_once(dev_dbg, dev, fmt, ##__VA_ARGS__)
-
- #define dev_level_ratelimited(dev_level, dev, fmt, ...) \
- do { \
- static DEFINE_RATELIMIT_STATE(_rs, \
- DEFAULT_RATELIMIT_INTERVAL, \
- DEFAULT_RATELIMIT_BURST); \
- if (__ratelimit(&_rs)) \
- dev_level(dev, fmt, ##__VA_ARGS__); \
- } while (0)
-
- #define dev_emerg_ratelimited(dev, fmt, ...) \
- dev_level_ratelimited(dev_emerg, dev, fmt, ##__VA_ARGS__)
- #define dev_alert_ratelimited(dev, fmt, ...) \
- dev_level_ratelimited(dev_alert, dev, fmt, ##__VA_ARGS__)
- #define dev_crit_ratelimited(dev, fmt, ...) \
- dev_level_ratelimited(dev_crit, dev, fmt, ##__VA_ARGS__)
- #define dev_err_ratelimited(dev, fmt, ...) \
- dev_level_ratelimited(dev_err, dev, fmt, ##__VA_ARGS__)
- #define dev_warn_ratelimited(dev, fmt, ...) \
- dev_level_ratelimited(dev_warn, dev, fmt, ##__VA_ARGS__)
- #define dev_notice_ratelimited(dev, fmt, ...) \
- dev_level_ratelimited(dev_notice, dev, fmt, ##__VA_ARGS__)
- #define dev_info_ratelimited(dev, fmt, ...) \
- dev_level_ratelimited(dev_info, dev, fmt, ##__VA_ARGS__)
- #if defined(CONFIG_DYNAMIC_DEBUG)
- /* descriptor check is first to prevent flooding with "callbacks suppressed" */
- #define dev_dbg_ratelimited(dev, fmt, ...) \
- do { \
- static DEFINE_RATELIMIT_STATE(_rs, \
- DEFAULT_RATELIMIT_INTERVAL, \
- DEFAULT_RATELIMIT_BURST); \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (DYNAMIC_DEBUG_BRANCH(descriptor) && \
- __ratelimit(&_rs)) \
- __dynamic_dev_dbg(&descriptor, dev, dev_fmt(fmt), \
- ##__VA_ARGS__); \
- } while (0)
- #elif defined(DEBUG)
- #define dev_dbg_ratelimited(dev, fmt, ...) \
- do { \
- static DEFINE_RATELIMIT_STATE(_rs, \
- DEFAULT_RATELIMIT_INTERVAL, \
- DEFAULT_RATELIMIT_BURST); \
- if (__ratelimit(&_rs)) \
- dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
- } while (0)
- #else
- #define dev_dbg_ratelimited(dev, fmt, ...) \
- do { \
- if (0) \
- dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
- } while (0)
- #endif
-
- #ifdef VERBOSE_DEBUG
- #define dev_vdbg dev_dbg
- #else
- #define dev_vdbg(dev, fmt, ...) \
- ({ \
- if (0) \
- dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
- })
- #endif
-
- /*
- * dev_WARN*() acts like dev_printk(), but with the key difference of
- * using WARN/WARN_ONCE to include file/line information and a backtrace.
- */
- #define dev_WARN(dev, format, arg...) \
- WARN(1, "%s %s: " format, dev_driver_string(dev), dev_name(dev), ## arg);
-
- #define dev_WARN_ONCE(dev, condition, format, arg...) \
- WARN_ONCE(condition, "%s %s: " format, \
- dev_driver_string(dev), dev_name(dev), ## arg)
-
/* Create alias, so I can be autoloaded. */
#define MODULE_ALIAS_CHARDEV(major,minor) \
MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))
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