mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-16 01:04:08 +08:00
5568296573
Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/*
|
|
* Wireless configuration interface internals.
|
|
*
|
|
* Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
|
|
*/
|
|
#ifndef __NET_WIRELESS_CORE_H
|
|
#define __NET_WIRELESS_CORE_H
|
|
#include <linux/mutex.h>
|
|
#include <linux/list.h>
|
|
#include <linux/netdevice.h>
|
|
#include <net/genetlink.h>
|
|
#include <net/wireless.h>
|
|
#include <net/cfg80211.h>
|
|
|
|
struct cfg80211_registered_device {
|
|
struct cfg80211_ops *ops;
|
|
struct list_head list;
|
|
/* we hold this mutex during any call so that
|
|
* we cannot do multiple calls at once, and also
|
|
* to avoid the deregister call to proceed while
|
|
* any call is in progress */
|
|
struct mutex mtx;
|
|
|
|
/* wiphy index, internal only */
|
|
int idx;
|
|
|
|
/* associate netdev list */
|
|
struct mutex devlist_mtx;
|
|
struct list_head netdev_list;
|
|
|
|
/* must be last because of the way we do wiphy_priv(),
|
|
* and it should at least be aligned to NETDEV_ALIGN */
|
|
struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
|
|
};
|
|
|
|
static inline
|
|
struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
|
|
{
|
|
BUG_ON(!wiphy);
|
|
return container_of(wiphy, struct cfg80211_registered_device, wiphy);
|
|
}
|
|
|
|
extern struct mutex cfg80211_drv_mutex;
|
|
extern struct list_head cfg80211_drv_list;
|
|
|
|
/*
|
|
* This function returns a pointer to the driver
|
|
* that the genl_info item that is passed refers to.
|
|
* If successful, it returns non-NULL and also locks
|
|
* the driver's mutex!
|
|
*
|
|
* This means that you need to call cfg80211_put_dev()
|
|
* before being allowed to acquire &cfg80211_drv_mutex!
|
|
*
|
|
* This is necessary because we need to lock the global
|
|
* mutex to get an item off the list safely, and then
|
|
* we lock the drv mutex so it doesn't go away under us.
|
|
*
|
|
* We don't want to keep cfg80211_drv_mutex locked
|
|
* for all the time in order to allow requests on
|
|
* other interfaces to go through at the same time.
|
|
*
|
|
* The result of this can be a PTR_ERR and hence must
|
|
* be checked with IS_ERR() for errors.
|
|
*/
|
|
extern struct cfg80211_registered_device *
|
|
cfg80211_get_dev_from_info(struct genl_info *info);
|
|
|
|
/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
|
|
extern struct cfg80211_registered_device *
|
|
cfg80211_get_dev_from_ifindex(int ifindex);
|
|
|
|
extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
|
|
|
|
/* free object */
|
|
extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
|
|
|
|
extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
|
|
char *newname);
|
|
|
|
#endif /* __NET_WIRELESS_CORE_H */
|