diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-05-10 12:32:47 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-05-25 00:02:16 +0200 |
| commit | 8d61ffa5e01c5f676431d12caba17db164a48a86 (patch) | |
| tree | c3df0dc13fdc8d2327712db10c1c654f428f11a3 /net/mac80211/cfg.c | |
| parent | cfg80211: vastly simplify locking (diff) | |
| download | linux-8d61ffa5e01c5f676431d12caba17db164a48a86.tar.xz linux-8d61ffa5e01c5f676431d12caba17db164a48a86.zip | |
cfg80211/mac80211: use cfg80211 wdev mutex in mac80211
Using separate locks in cfg80211 and mac80211 has always
caused issues, for example having to unlock in places in
mac80211 to call cfg80211, which even needed a framework
to make cfg80211 calls after some functions returned etc.
Additionally, I suspect some issues people have reported
with the cfg80211 state getting confused could be due to
such issues, when cfg80211 is asking mac80211 to change
state but mac80211 is in the process of telling cfg80211
that the state changed (in another way.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index eb4219051043..232edf78d5a9 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2318,7 +2318,7 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, enum ieee80211_smps_mode old_req; int err; - lockdep_assert_held(&sdata->u.mgd.mtx); + lockdep_assert_held(&sdata->wdev.mtx); old_req = sdata->u.mgd.req_smps; sdata->u.mgd.req_smps = smps_mode; @@ -2375,9 +2375,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, local->dynamic_ps_forced_timeout = timeout; /* no change, but if automatic follow powersave */ - mutex_lock(&sdata->u.mgd.mtx); __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps); - mutex_unlock(&sdata->u.mgd.mtx); if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); |