summaryrefslogtreecommitdiffstats
path: root/net/mac80211/main.c
diff options
context:
space:
mode:
authorJohannes Berg <johannes.berg@intel.com>2012-01-20 13:55:21 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-02-06 14:48:24 -0500
commitf09603a259ffef69ad4516a04eb06cd65ac522fe (patch)
tree3f826769c697eb15a76771e25291bbb54f9f58ab /net/mac80211/main.c
parent71ec375c75095002f36f083ceb32bbb8725734ae (diff)
downloadblackbird-op-linux-f09603a259ffef69ad4516a04eb06cd65ac522fe.tar.gz
blackbird-op-linux-f09603a259ffef69ad4516a04eb06cd65ac522fe.zip
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.c3
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
OpenPOWER on IntegriCloud