linux-stable.git/net/wireless/util.c, branch v3.17

cfg80211: implement cfg80211_get_station cfg80211 API

2014-05-21T07:15:17+00:00

Implement and export the new cfg80211_get_station() API.
This utility can be used by other kernel modules to obtain
detailed information about a given wireless station.

It will be in particular useful to batman-adv which will
implement a wireless rate based metric.

Signed-off-by: Antonio Quartulli 
Signed-off-by: Johannes Berg

cfg80211: constify more pointers in the cfg80211 API

2014-05-19T15:53:16+00:00

This also propagates through the drivers.

The orinoco driver uses the cfg80211 API structs for internal
bookkeeping, and so needs a (void *) cast that removes the
const - but that's OK because it allocates those pointers.

Signed-off-by: Johannes Berg

cfg80211: allow restricting supported dfs regions

2014-05-13T13:50:06+00:00

At the moment, the ath9k/ath10k DFS module only supports detecting ETSI
radar patterns.
Add a bitmap in the interface combinations, indicating which DFS regions
are supported by the detector. If unset, support for all regions is
assumed.

Signed-off-by: Felix Fietkau 
Signed-off-by: Johannes Berg

cfg80211: export interface stopping function

2014-05-06T13:16:34+00:00

This exports a new cfg80211_stop_iface() function.

This is intended for driver internal interface
combination management and channel switching.

Due to locking issues (it re-enters driver) the
call is asynchronous and uses cfg80211 event
list/worker.

Signed-off-by: Michal Kazior 
Signed-off-by: Johannes Berg

cfg80211: change wiphy_to_dev function name

2014-04-25T15:33:04+00:00

Name wiphy_to_rdev is more accurate to describe what the function
does, i.e., return a pointer pointing to struct
cfg80211_registered_device.

Signed-off-by: Zhao, Gang 
Signed-off-by: Johannes Berg

cfg80211: allow drivers to iterate over matching combinations

2014-04-25T15:08:14+00:00

The patch splits cfg80211_check_combinations()
into an iterator function and a simple iteration
user.

This makes it possible for drivers to asses how
many channels can use given iftype setup. This in
turn can be used for future
multi-interface/multi-channel channel switching.

Signed-off-by: Michal Kazior 
Signed-off-by: Johannes Berg

cfg80211: fix radar_detect combination checking

2014-04-09T08:55:58+00:00

All bits from radar_detect must match combination
radar bitmask. Otherwise it is theoretically
possible to lead into an invalid combination
provided a driver reports strange combinations.

Signed-off-by: Michal Kazior 
Signed-off-by: Johannes Berg

cfg80211/mac80211: move more combination checks to mac80211

2014-04-09T08:55:47+00:00

Get rid of the cfg80211_can_add_interface() and
cfg80211_can_change_interface() functions by moving that functionality
to mac80211.  With this patch all interface combination checks are now
out of cfg80211 (except for the channel switch case which will be
addressed in a future commit).

Additionally, modify the ieee80211_check_combinations() function so
that an undefined chandef can be passed, in order to use it before a
channel is defined.

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

cfg80211/mac80211: move interface counting for combination check to mac80211

2014-04-09T08:55:43+00:00

Move the counting part of the interface combination check from
cfg80211 to mac80211.

This is needed to simplify locking when the driver has to perform a
combination check by itself (eg. with channel-switch).

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

cfg80211: refactor cfg80211_can_use_iftype_chan()

2014-04-09T08:55:39+00:00

Separate the code that counts the interface types and channels from
the code that check the interface combinations.  The new function that
checks for combinations is exported so it can be called by the
drivers.

This is done in preparation for moving the interface combinations
checks out of cfg80211.

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg