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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-06 11:36:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-06 11:36:30 -0700
commitab69bcd66fb4be64edfc767365cb9eb084961246 (patch)
treef7623585aee58978fc7814460fff517ec39138f2 /include
parentc513b67e68787eceafeede32bcd0edbee45c0006 (diff)
parent6937e8f8c0135f2325194c372ada6dc655499992 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (28 commits) driver core: device_rename's new_name can be const sysfs: Remove owner field from sysfs struct attribute powerpc/pci: Remove owner field from attribute initialization in PCI bridge init regulator: Remove owner field from attribute initialization in regulator core driver leds: Remove owner field from attribute initialization in bd2802 driver scsi: Remove owner field from attribute initialization in ARCMSR driver scsi: Remove owner field from attribute initialization in LPFC driver cgroupfs: create /sys/fs/cgroup to mount cgroupfs on Driver core: Add BUS_NOTIFY_BIND_DRIVER driver core: fix memory leak on one error path in bus_register() debugfs: no longer needs to depend on SYSFS sysfs: Fix one more signature discrepancy between sysfs implementation and docs. sysfs: fix discrepancies between implementation and documentation dcdbas: remove a redundant smi_data_buf_free in dcdbas_exit dmi-id: fix a memory leak in dmi_id_init error path sysfs: sysfs_chmod_file's attr can be const firmware: Update hotplug script Driver core: move platform device creation helpers to .init.text (if MODULE=n) Driver core: reduce duplicated code for platform_device creation Driver core: use kmemdup in platform_device_add_resources ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/device.h15
-rw-r--r--include/linux/platform_device.h62
-rw-r--r--include/linux/sysfs.h12
3 files changed, 69 insertions, 20 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 6a8276f683b6..516fecacf27b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -84,9 +84,8 @@ struct device *bus_find_device_by_name(struct bus_type *bus,
struct device *start,
const char *name);
-int __must_check bus_for_each_drv(struct bus_type *bus,
- struct device_driver *start, void *data,
- int (*fn)(struct device_driver *, void *));
+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,
@@ -110,10 +109,12 @@ extern int bus_unregister_notifier(struct bus_type *bus,
*/
#define BUS_NOTIFY_ADD_DEVICE 0x00000001 /* device added */
#define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device removed */
-#define BUS_NOTIFY_BOUND_DRIVER 0x00000003 /* driver bound to device */
-#define BUS_NOTIFY_UNBIND_DRIVER 0x00000004 /* driver about to be
+#define BUS_NOTIFY_BIND_DRIVER 0x00000003 /* driver about to be
+ bound */
+#define BUS_NOTIFY_BOUND_DRIVER 0x00000004 /* driver bound to device */
+#define BUS_NOTIFY_UNBIND_DRIVER 0x00000005 /* driver about to be
unbound */
-#define BUS_NOTIFY_UNBOUND_DRIVER 0x00000005 /* driver is unbound
+#define BUS_NOTIFY_UNBOUND_DRIVER 0x00000006 /* driver is unbound
from the device */
extern struct kset *bus_get_kset(struct bus_type *bus);
@@ -551,7 +552,7 @@ extern int device_for_each_child(struct device *dev, void *data,
int (*fn)(struct device *dev, void *data));
extern struct device *device_find_child(struct device *dev, void *data,
int (*match)(struct device *dev, void *data));
-extern int device_rename(struct device *dev, char *new_name);
+extern int device_rename(struct device *dev, const char *new_name);
extern int device_move(struct device *dev, struct device *new_parent,
enum dpm_order dpm_order);
extern const char *device_get_devnode(struct device *dev,
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 5417944d3687..d7ecad0093bb 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -43,10 +43,64 @@ extern struct resource *platform_get_resource_byname(struct platform_device *, u
extern int platform_get_irq_byname(struct platform_device *, const char *);
extern int platform_add_devices(struct platform_device **, int);
-extern struct platform_device *platform_device_register_simple(const char *, int id,
- const struct resource *, unsigned int);
-extern struct platform_device *platform_device_register_data(struct device *,
- const char *, int, const void *, size_t);
+extern struct platform_device *platform_device_register_resndata(
+ struct device *parent, const char *name, int id,
+ const struct resource *res, unsigned int num,
+ const void *data, size_t size);
+
+/**
+ * platform_device_register_simple - add a platform-level device and its resources
+ * @name: base name of the device we're adding
+ * @id: instance id
+ * @res: set of resources that needs to be allocated for the device
+ * @num: number of resources
+ *
+ * This function creates a simple platform device that requires minimal
+ * resource and memory management. Canned release function freeing memory
+ * allocated for the device allows drivers using such devices to be
+ * unloaded without waiting for the last reference to the device to be
+ * dropped.
+ *
+ * This interface is primarily intended for use with legacy drivers which
+ * probe hardware directly. Because such drivers create sysfs device nodes
+ * themselves, rather than letting system infrastructure handle such device
+ * enumeration tasks, they don't fully conform to the Linux driver model.
+ * In particular, when such drivers are built as modules, they can't be
+ * "hotplugged".
+ *
+ * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
+ */
+static inline struct platform_device *platform_device_register_simple(
+ const char *name, int id,
+ const struct resource *res, unsigned int num)
+{
+ return platform_device_register_resndata(NULL, name, id,
+ res, num, NULL, 0);
+}
+
+/**
+ * platform_device_register_data - add a platform-level device with platform-specific data
+ * @parent: parent device for the device we're adding
+ * @name: base name of the device we're adding
+ * @id: instance id
+ * @data: platform specific data for this platform device
+ * @size: size of platform specific data
+ *
+ * This function creates a simple platform device that requires minimal
+ * resource and memory management. Canned release function freeing memory
+ * allocated for the device allows drivers using such devices to be
+ * unloaded without waiting for the last reference to the device to be
+ * dropped.
+ *
+ * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
+ */
+static inline struct platform_device *platform_device_register_data(
+ struct device *parent, const char *name, int id,
+ const void *data, size_t size)
+{
+ return platform_device_register_resndata(parent, name, id,
+ NULL, 0, data, size);
+}
extern struct platform_device *platform_device_alloc(const char *name, int id);
extern int platform_device_add_resources(struct platform_device *pdev,
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index f2694eb4dd3d..3c92121ba9af 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -22,14 +22,8 @@ struct kobject;
struct module;
enum kobj_ns_type;
-/* FIXME
- * The *owner field is no longer used.
- * x86 tree has been cleaned up. The owner
- * attribute is still left for other arches.
- */
struct attribute {
const char *name;
- struct module *owner;
mode_t mode;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lock_class_key *key;
@@ -136,8 +130,8 @@ int __must_check sysfs_create_file(struct kobject *kobj,
const struct attribute *attr);
int __must_check sysfs_create_files(struct kobject *kobj,
const struct attribute **attr);
-int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr,
- mode_t mode);
+int __must_check sysfs_chmod_file(struct kobject *kobj,
+ const struct attribute *attr, mode_t mode);
void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);
@@ -225,7 +219,7 @@ static inline int sysfs_create_files(struct kobject *kobj,
}
static inline int sysfs_chmod_file(struct kobject *kobj,
- struct attribute *attr, mode_t mode)
+ const struct attribute *attr, mode_t mode)
{
return 0;
}