devres: allow const resource arguments

[mirror_ubuntu-bionic-kernel.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index 9d32000725da8452fdac148700c16315715bec07..9b4dc8e54e961c664deccde49299785a05bc694e 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -377,6 +377,9 @@ int subsys_virtual_register(struct bus_type *subsys,
  * @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.
@@ -406,6 +409,8 @@ struct class {
        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;
@@ -681,7 +686,8 @@ extern unsigned long devm_get_free_pages(struct device *dev,
                                         gfp_t gfp_mask, unsigned int order);
 extern void devm_free_pages(struct device *dev, unsigned long addr);
 
-void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
+void __iomem *devm_ioremap_resource(struct device *dev,
+                                   const struct resource *res);
 
 /* allows to add/remove a custom action to devres stack */
 int devm_add_action(struct device *dev, void (*action)(void *), void *data);
@@ -1255,6 +1261,7 @@ extern int (*platform_notify_remove)(struct device *dev);
  */
 extern struct device *get_device(struct device *dev);
 extern void put_device(struct device *dev);
+extern bool kill_device(struct device *dev);
 
 #ifdef CONFIG_DEVTMPFS
 extern int devtmpfs_create_node(struct device *dev);
@@ -1279,6 +1286,62 @@ void device_link_del(struct device_link *link);
 
 #ifdef CONFIG_PRINTK
 
+#if defined(__KMSG_CHECKER) && defined(KMSG_COMPONENT)
+
+/* generate magic string for scripts/kmsg-doc to parse */
+#define dev_emerg(dev, format, arg...)         \
+       __KMSG_DEV(KERN_EMERG _FMT_ format _ARGS_ dev, ## arg _END_)
+#define dev_alert(dev, format, arg...)         \
+       __KMSG_DEV(KERN_ALERT _FMT_ format _ARGS_ dev, ## arg _END_)
+#define dev_crit(dev, format, arg...)          \
+       __KMSG_DEV(KERN_CRIT _FMT_ format _ARGS_ dev, ## arg _END_)
+#define dev_err(dev, format, arg...)           \
+       __KMSG_DEV(KERN_ERR _FMT_ format _ARGS_ dev, ## arg _END_)
+#define dev_warn(dev, format, arg...)          \
+       __KMSG_DEV(KERN_WARNING _FMT_ format _ARGS_ dev, ## arg _END_)
+#define dev_notice(dev, format, arg...)                \
+       __KMSG_DEV(KERN_NOTICE _FMT_ format _ARGS_ dev, ## arg _END_)
+#define _dev_info(dev, format, arg...)         \
+       __KMSG_DEV(KERN_INFO _FMT_ format _ARGS_ dev, ## arg _END_)
+
+#elif defined(CONFIG_KMSG_IDS) && defined(KMSG_COMPONENT)
+
+extern int dev_printk_hash(const char *level, const struct device *dev,
+                          const char *fmt, ...);
+extern __printf(2,3)
+int dev_emerg_hash(const struct device *dev, const char *fmt, ...);
+extern __printf(2,3)
+int dev_alert_hash(const struct device *dev, const char *fmt, ...);
+extern __printf(2,3)
+int dev_crit_hash(const struct device *dev, const char *fmt, ...);
+extern __printf(2,3)
+int dev_err_hash(const struct device *dev, const char *fmt, ...);
+extern __printf(2,3)
+int dev_warn_hash(const struct device *dev, const char *fmt, ...);
+extern __printf(2,3)
+int dev_notice_hash(const struct device *dev, const char *fmt, ...);
+extern __printf(2,3)
+int _dev_info_hash(const struct device *dev, const char *fmt, ...);
+
+#define dev_printk(level, dev, format, arg...)                         \
+       dev_printk_hash(level, dev, "%s: " format, dev_name(dev), ## arg)
+#define dev_emerg(dev, format, arg...) \
+       dev_emerg_hash(dev, "%s: " format, dev_name(dev), ## arg)
+#define dev_alert(dev, format, arg...) \
+       dev_alert_hash(dev, "%s: " format, dev_name(dev), ## arg)
+#define dev_crit(dev, format, arg...) \
+       dev_crit_hash(dev, "%s: " format, dev_name(dev), ## arg)
+#define dev_err(dev, format, arg...) \
+       dev_err_hash(dev, "%s: " format, dev_name(dev), ## arg)
+#define dev_warn(dev, format, arg...) \
+       dev_warn_hash(dev, "%s: " format, dev_name(dev), ## arg)
+#define dev_notice(dev, format, arg...) \
+       dev_notice_hash(dev, "%s: " format, dev_name(dev), ## arg)
+#define _dev_info(dev, format, arg...) \
+       _dev_info_hash(dev, "%s: " format, dev_name(dev), ## arg)
+
+#else /* !defined(CONFIG_KMSG_IDS) */
+
 extern __printf(3, 0)
 int dev_vprintk_emit(int level, const struct device *dev,
                     const char *fmt, va_list args);
@@ -1303,7 +1366,9 @@ void dev_notice(const struct device *dev, const char *fmt, ...);
 extern __printf(2, 3)
 void _dev_info(const struct device *dev, const char *fmt, ...);
 
-#else
+#endif /* !defined(CONFIG_KMSG_IDS) */
+
+#else /* !defined(CONFIG_PRINTK) */
 
 static inline __printf(3, 0)
 int dev_vprintk_emit(int level, const struct device *dev,
@@ -1343,7 +1408,7 @@ static inline __printf(2, 3)
 void _dev_info(const struct device *dev, const char *fmt, ...)
 {}
 
-#endif
+#endif /* !defined(CONFIG_PRINTK) */
 
 /*
  * Stupid hackaround for existing uses of non-printk uses dev_info