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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-18 21:44:53 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-18 21:44:53 +0300 |
commit | a18d783fedfe6f9b720afe901db9501ce116ed81 (patch) | |
tree | 12e100b5b31657d11bfc5dc3e2ddd124f3690cb3 /include/linux | |
parent | d5acba26bfa097a618be425522b1ec4269d3edaf (diff) | |
parent | d2fc88a61b4ea99f574bde16e92718e22f312136 (diff) | |
download | linux-a18d783fedfe6f9b720afe901db9501ce116ed81.tar.xz |
Merge tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here are all of the driver core and related patches for 4.19-rc1.
Nothing huge here, just a number of small cleanups and the ability to
now stop the deferred probing after init happens.
All of these have been in linux-next for a while with only a merge
issue reported"
* tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (21 commits)
base: core: Remove WARN_ON from link dependencies check
drivers/base: stop new probing during shutdown
drivers: core: Remove glue dirs from sysfs earlier
driver core: remove unnecessary function extern declare
sysfs.h: fix non-kernel-doc comment
PM / Domains: Stop deferring probe at the end of initcall
iommu: Remove IOMMU_OF_DECLARE
iommu: Stop deferring probe at end of initcalls
pinctrl: Support stopping deferred probe after initcalls
dt-bindings: pinctrl: add a 'pinctrl-use-default' property
driver core: allow stopping deferred probe after init
driver core: add a debugfs entry to show deferred devices
sysfs: Fix internal_create_group() for named group updates
base: fix order of OF initialization
linux/device.h: fix kernel-doc notation warning
Documentation: update firmware loader fallback reference
kobject: Replace strncpy with memcpy
drivers: base: cacheinfo: use OF property_read_u32 instead of get_property,read_number
kernfs: Replace strncpy with memcpy
device: Add #define dev_fmt similar to #define pr_fmt
...
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/device.h | 105 | ||||
-rw-r--r-- | include/linux/kobject.h | 17 | ||||
-rw-r--r-- | include/linux/of_iommu.h | 4 | ||||
-rw-r--r-- | include/linux/sysfs.h | 6 |
4 files changed, 80 insertions, 52 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index f6475b1820ef..8f882549edee 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -339,6 +339,8 @@ struct device *driver_find_device(struct device_driver *drv, struct device *start, void *data, int (*match)(struct device *dev, void *data)); +int driver_deferred_probe_check_state(struct device *dev); + /** * struct subsys_interface - interfaces to device functions * @name: name of the device function @@ -1329,30 +1331,34 @@ struct device_link *device_link_add(struct device *consumer, void device_link_del(struct device_link *link); void device_link_remove(void *consumer, struct device *supplier); +#ifndef dev_fmt +#define dev_fmt(fmt) fmt +#endif + #ifdef CONFIG_PRINTK -extern __printf(3, 0) +__printf(3, 0) int dev_vprintk_emit(int level, const struct device *dev, const char *fmt, va_list args); -extern __printf(3, 4) +__printf(3, 4) int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...); -extern __printf(3, 4) +__printf(3, 4) void dev_printk(const char *level, const struct device *dev, const char *fmt, ...); -extern __printf(2, 3) -void dev_emerg(const struct device *dev, const char *fmt, ...); -extern __printf(2, 3) -void dev_alert(const struct device *dev, const char *fmt, ...); -extern __printf(2, 3) -void dev_crit(const struct device *dev, const char *fmt, ...); -extern __printf(2, 3) -void dev_err(const struct device *dev, const char *fmt, ...); -extern __printf(2, 3) -void dev_warn(const struct device *dev, const char *fmt, ...); -extern __printf(2, 3) -void dev_notice(const struct device *dev, const char *fmt, ...); -extern __printf(2, 3) +__printf(2, 3) +void _dev_emerg(const struct device *dev, const char *fmt, ...); +__printf(2, 3) +void _dev_alert(const struct device *dev, const char *fmt, ...); +__printf(2, 3) +void _dev_crit(const struct device *dev, const char *fmt, ...); +__printf(2, 3) +void _dev_err(const struct device *dev, const char *fmt, ...); +__printf(2, 3) +void _dev_warn(const struct device *dev, const char *fmt, ...); +__printf(2, 3) +void _dev_notice(const struct device *dev, const char *fmt, ...); +__printf(2, 3) void _dev_info(const struct device *dev, const char *fmt, ...); #else @@ -1370,26 +1376,26 @@ static inline void __dev_printk(const char *level, const struct device *dev, {} static inline __printf(3, 4) void dev_printk(const char *level, const struct device *dev, - const char *fmt, ...) + const char *fmt, ...) {} static inline __printf(2, 3) -void dev_emerg(const struct device *dev, const char *fmt, ...) +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, ...) +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, ...) +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, ...) +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, ...) +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, ...) +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, ...) @@ -1398,27 +1404,36 @@ void _dev_info(const struct device *dev, const char *fmt, ...) #endif /* - * Stupid hackaround for existing uses of non-printk uses dev_info - * - * Note that the definition of dev_info below is actually _dev_info - * and a macro is used to avoid redefining dev_info + * #defines for all the dev_<level> macros to prefix with whatever + * possible use of #define dev_fmt(fmt) ... */ -#define dev_info(dev, fmt, arg...) _dev_info(dev, fmt, ##arg) +#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, format, ...) \ -do { \ - dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \ -} while (0) +#define dev_dbg(dev, fmt, ...) \ + dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) #elif defined(DEBUG) -#define dev_dbg(dev, format, arg...) \ - dev_printk(KERN_DEBUG, dev, format, ##arg) +#define dev_dbg(dev, fmt, ...) \ + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__) #else -#define dev_dbg(dev, format, arg...) \ -({ \ - if (0) \ - dev_printk(KERN_DEBUG, dev, format, ##arg); \ +#define dev_dbg(dev, fmt, ...) \ +({ \ + if (0) \ + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \ }) #endif @@ -1490,7 +1505,7 @@ do { \ DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \ __ratelimit(&_rs)) \ - __dynamic_dev_dbg(&descriptor, dev, fmt, \ + __dynamic_dev_dbg(&descriptor, dev, dev_fmt(fmt), \ ##__VA_ARGS__); \ } while (0) #elif defined(DEBUG) @@ -1500,23 +1515,23 @@ do { \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ if (__ratelimit(&_rs)) \ - dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); \ + 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, fmt, ##__VA_ARGS__); \ + 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, format, arg...) \ -({ \ - if (0) \ - dev_printk(KERN_DEBUG, dev, format, ##arg); \ +#define dev_vdbg(dev, fmt, ...) \ +({ \ + if (0) \ + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \ }) #endif diff --git a/include/linux/kobject.h b/include/linux/kobject.h index b49ff230beba..1ab0d624fb36 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -119,6 +119,23 @@ extern void kobject_get_ownership(struct kobject *kobj, kuid_t *uid, kgid_t *gid); extern char *kobject_get_path(struct kobject *kobj, gfp_t flag); +/** + * kobject_has_children - Returns whether a kobject has children. + * @kobj: the object to test + * + * This will return whether a kobject has other kobjects as children. + * + * It does NOT account for the presence of attribute files, only sub + * directories. It also assumes there is no concurrent addition or + * removal of such children, and thus relies on external locking. + */ +static inline bool kobject_has_children(struct kobject *kobj) +{ + WARN_ON_ONCE(kref_read(&kobj->kref) == 0); + + return kobj->sd && kobj->sd->dir.subdirs; +} + struct kobj_type { void (*release)(struct kobject *kobj); const struct sysfs_ops *sysfs_ops; diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h index 4fa654e4b5a9..f3d40dd7bb66 100644 --- a/include/linux/of_iommu.h +++ b/include/linux/of_iommu.h @@ -32,8 +32,4 @@ static inline const struct iommu_ops *of_iommu_configure(struct device *dev, #endif /* CONFIG_OF_IOMMU */ -extern struct of_device_id __iommu_of_table; - -#define IOMMU_OF_DECLARE(name, compat) OF_DECLARE_1(iommu, name, compat, NULL) - #endif /* __OF_IOMMU_H */ diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 3c12198c0103..987cefa337de 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -91,9 +91,9 @@ struct attribute_group { struct bin_attribute **bin_attrs; }; -/** - * Use these macros to make defining attributes easier. See include/linux/device.h - * for examples.. +/* + * Use these macros to make defining attributes easier. + * See include/linux/device.h for examples.. */ #define SYSFS_PREALLOC 010000 |