diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2012-01-20 16:55:21 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-02-06 23:48:24 +0400 |
| commit | f09603a259ffef69ad4516a04eb06cd65ac522fe (patch) | |
| tree | 3f826769c697eb15a76771e25291bbb54f9f58ab /net/mac80211/main.c | |
| parent | 71ec375c75095002f36f083ceb32bbb8725734ae (diff) | |
| download | linux-f09603a259ffef69ad4516a04eb06cd65ac522fe.tar.xz | |
mac80211: add sta_state callback
(based on Eliad's patch)
Add a callback to notify the low-level driver whenever
the state of a station changes. The driver is only
notified when the station is actually in the mac80211
hash table, not for pre-insert state transitions.
To allow the driver to replace sta_add/remove calls
with this, call extra transitions with the NOTEXIST
state.
This callback can fail, so we need to be careful in
handling it when a station is inserted, particularly
in the IBSS case where we still keep the station entry
around for mac80211 purposes.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/main.c')
| -rw-r--r-- | net/mac80211/main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 6192caadfab9..f4fc540aac17 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -535,6 +535,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, int priv_size, i; struct wiphy *wiphy; + if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) + return NULL; + /* Ensure 32-byte alignment of our private data and hw private data. * We use the wiphy priv data for both our ieee80211_local and for * the driver's private data |