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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-18 11:44:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-18 11:44:53 -0700
commita18d783fedfe6f9b720afe901db9501ce116ed81 (patch)
tree12e100b5b31657d11bfc5dc3e2ddd124f3690cb3 /include
parentd5acba26bfa097a618be425522b1ec4269d3edaf (diff)
parentd2fc88a61b4ea99f574bde16e92718e22f312136 (diff)
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')
-rw-r--r--include/asm-generic/vmlinux.lds.h2
-rw-r--r--include/linux/device.h105
-rw-r--r--include/linux/kobject.h17
-rw-r--r--include/linux/of_iommu.h4
-rw-r--r--include/linux/sysfs.h6
5 files changed, 80 insertions, 54 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index e373e2e10f6a..f173b5f30dbe 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -218,7 +218,6 @@
#define TIMER_OF_TABLES() OF_TABLE(CONFIG_TIMER_OF, timer)
#define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip)
#define CLK_OF_TABLES() OF_TABLE(CONFIG_COMMON_CLK, clk)
-#define IOMMU_OF_TABLES() OF_TABLE(CONFIG_OF_IOMMU, iommu)
#define RESERVEDMEM_OF_TABLES() OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem)
#define CPU_METHOD_OF_TABLES() OF_TABLE(CONFIG_SMP, cpu_method)
#define CPUIDLE_METHOD_OF_TABLES() OF_TABLE(CONFIG_CPU_IDLE, cpuidle_method)
@@ -601,7 +600,6 @@
CLK_OF_TABLES() \
RESERVEDMEM_OF_TABLES() \
TIMER_OF_TABLES() \
- IOMMU_OF_TABLES() \
CPU_METHOD_OF_TABLES() \
CPUIDLE_METHOD_OF_TABLES() \
KERNEL_DTB() \
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