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rfkill: strip pointless notifier chain 

No users, so no reason to have it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-12-10 17:48:48 +01:00 committed by John W. Linville
parent 6fb532527e
commit 4dec9b807b
2 changed files with 5 additions and 85 deletions
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7
include/linux/rfkill.h
View File

@ -149,11 +149,4 @@ static inline char *rfkill_get_led_name(struct rfkill *rfkill)
#endif
}
/* rfkill notification chain */
#define RFKILL_STATE_CHANGED 0x0001 /* state of a normal rfkill
switch has changed */
int register_rfkill_notifier(struct notifier_block *nb);
int unregister_rfkill_notifier(struct notifier_block *nb);
#endif /* RFKILL_H */

83
net/rfkill/rfkill.c
View File

@ -53,51 +53,6 @@ static struct rfkill_gsw_state rfkill_global_states[RFKILL_TYPE_MAX];
static unsigned long rfkill_states_lockdflt[BITS_TO_LONGS(RFKILL_TYPE_MAX)];
static bool rfkill_epo_lock_active;
static BLOCKING_NOTIFIER_HEAD(rfkill_notifier_list);
/**
* register_rfkill_notifier - Add notifier to rfkill notifier chain
* @nb: pointer to the new entry to add to the chain
*
* See blocking_notifier_chain_register() for return value and further
* observations.
*
* Adds a notifier to the rfkill notifier chain. The chain will be
* called with a pointer to the relevant rfkill structure as a parameter,
* refer to include/linux/rfkill.h for the possible events.
*
* Notifiers added to this chain are to always return NOTIFY_DONE. This
* chain is a blocking notifier chain: notifiers can sleep.
*
* Calls to this chain may have been done through a workqueue. One must
* assume unordered asynchronous behaviour, there is no way to know if
* actions related to the event that generated the notification have been
* carried out already.
*/
int register_rfkill_notifier(struct notifier_block *nb)
{
BUG_ON(!nb);
return blocking_notifier_chain_register(&rfkill_notifier_list, nb);
}
EXPORT_SYMBOL_GPL(register_rfkill_notifier);
/**
* unregister_rfkill_notifier - remove notifier from rfkill notifier chain
* @nb: pointer to the entry to remove from the chain
*
* See blocking_notifier_chain_unregister() for return value and further
* observations.
*
* Removes a notifier from the rfkill notifier chain.
*/
int unregister_rfkill_notifier(struct notifier_block *nb)
{
BUG_ON(!nb);
return blocking_notifier_chain_unregister(&rfkill_notifier_list, nb);
}
EXPORT_SYMBOL_GPL(unregister_rfkill_notifier);
static void rfkill_led_trigger(struct rfkill *rfkill,
enum rfkill_state state)
@ -124,12 +79,9 @@ static void rfkill_led_trigger_activate(struct led_classdev *led)
}
#endif /* CONFIG_RFKILL_LEDS */
static void notify_rfkill_state_change(struct rfkill *rfkill)
static void rfkill_uevent(struct rfkill *rfkill)
{
rfkill_led_trigger(rfkill, rfkill->state);
blocking_notifier_call_chain(&rfkill_notifier_list,
RFKILL_STATE_CHANGED,
rfkill);
kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
}
static void update_rfkill_state(struct rfkill *rfkill)
@ -142,7 +94,7 @@ static void update_rfkill_state(struct rfkill *rfkill)
oldstate = rfkill->state;
rfkill->state = newstate;
if (oldstate != newstate)
notify_rfkill_state_change(rfkill);
rfkill_uevent(rfkill);
}
mutex_unlock(&rfkill->mutex);
}
@ -220,7 +172,7 @@ static int rfkill_toggle_radio(struct rfkill *rfkill,
}
if (force || rfkill->state != oldstate)
notify_rfkill_state_change(rfkill);
rfkill_uevent(rfkill);
return retval;
}
@ -405,7 +357,7 @@ int rfkill_force_state(struct rfkill *rfkill, enum rfkill_state state)
rfkill->state = state;
if (state != oldstate)
notify_rfkill_state_change(rfkill);
rfkill_uevent(rfkill);
mutex_unlock(&rfkill->mutex);
@ -618,28 +570,6 @@ static int rfkill_resume(struct device *dev)
#define rfkill_resume NULL
#endif
static int rfkill_blocking_uevent_notifier(struct notifier_block *nb,
unsigned long eventid,
void *data)
{
struct rfkill *rfkill = (struct rfkill *)data;
switch (eventid) {
case RFKILL_STATE_CHANGED:
kobject_uevent(&rfkill->dev.kobj, KOBJ_CHANGE);
break;
default:
break;
}
return NOTIFY_DONE;
}
static struct notifier_block rfkill_blocking_uevent_nb = {
.notifier_call = rfkill_blocking_uevent_notifier,
.priority = 0,
};
static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct rfkill *rfkill = to_rfkill(dev);
@ -942,14 +872,11 @@ static int __init rfkill_init(void)
return error;
}
register_rfkill_notifier(&rfkill_blocking_uevent_nb);
return 0;
}
static void __exit rfkill_exit(void)
{
unregister_rfkill_notifier(&rfkill_blocking_uevent_nb);
class_unregister(&rfkill_class);
}