The purpose of this function is to allow other parts of the driver core to iterate over the currently registered classes.
Signed-off-by: Tomeu Vizoso <[email protected]> --- drivers/base/base.h | 2 ++ drivers/base/class.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/drivers/base/base.h b/drivers/base/base.h index 29c985e..be81c88 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -149,3 +149,5 @@ extern int devtmpfs_init(void); #else static inline int devtmpfs_init(void) { return 0; } #endif + +extern void for_each_class(void (*fn)(struct class *, void *), void *data); diff --git a/drivers/base/class.c b/drivers/base/class.c index 6e81088..f4114a4 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -583,6 +583,22 @@ void class_compat_remove_link(struct class_compat *cls, struct device *dev, } EXPORT_SYMBOL_GPL(class_compat_remove_link); +void for_each_class(void (*fn)(struct class *, void *), void *data) +{ + struct subsys_private *cp; + struct kobject *k; + + if (!class_kset) + return; + + list_for_each_entry(k, &class_kset->list, entry) { + cp = to_subsys_private(k); + class_get(cp->class); + fn(cp->class, data); + class_put(cp->class); + } +} + int __init classes_init(void) { class_kset = kset_create_and_add("class", NULL, NULL); -- 2.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
