diff options
| author | Eliad Peller <eliad@wizery.com> | 2015-11-17 10:24:37 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-12-04 14:43:32 +0100 |
| commit | ef044763a3ca6b9e0bb65a9ce0cb38c0eca62756 (patch) | |
| tree | 0c2f3c99895e58135693548cd44c9f1ed880c302 /net/mac80211/sta_info.c | |
| parent | 0ead2510f8cec11ce96308d79a1b4ee272fb5238 (diff) | |
mac80211: add atomic uploaded keys iterator
add ieee80211_iter_keys_rcu() to iterate over uploaded
keys in atomic context (when rcu is locked)
The station removal code removes the keys only after
calling synchronize_net(), so it's not safe to iterate
the keys at this point (and postponing the actual key
deletion with call_rcu() might result in some
badly-ordered ops calls).
Add a flag to indicate a station is being removed,
and skip the configured keys if it's set.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.c')
| -rw-r--r-- | net/mac80211/sta_info.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 723fa30aafc5..4402ad5b27d1 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -883,6 +883,7 @@ static int __must_check __sta_info_destroy_part1(struct sta_info *sta) } list_del_rcu(&sta->list); + sta->removed = true; drv_sta_pre_rcu_remove(local, sta->sdata, sta); |