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authorJohannes Berg <johannes.berg@intel.com>2011-12-14 12:20:29 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-12-15 20:45:46 +0100
commit87be1e1e00f870567780dec111193426b4c085e8 (patch)
tree1d86707afa1e5f116804f0722573eeaf9d9ab13d /net/mac80211
parentmac80211: remove duplicate TDLS peer verification (diff)
downloadlinux-87be1e1e00f870567780dec111193426b4c085e8.tar.xz
linux-87be1e1e00f870567780dec111193426b4c085e8.zip
mac80211: use station mutex in configuration
There's no need to use RCU here, we can just lock the station mutex instead. This allows the code to sleep, which is necessary for later patches. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/cfg.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index bc83a6605ea6..3acda35df5cb 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -954,11 +954,11 @@ static int ieee80211_change_station(struct wiphy *wiphy,
struct sta_info *sta;
struct ieee80211_sub_if_data *vlansdata;
- rcu_read_lock();
+ mutex_lock(&local->sta_mtx);
sta = sta_info_get_bss(sdata, mac);
if (!sta) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -ENOENT;
}
@@ -966,7 +966,7 @@ static int ieee80211_change_station(struct wiphy *wiphy,
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->supported_rates &&
!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -EINVAL;
}
@@ -975,13 +975,13 @@ static int ieee80211_change_station(struct wiphy *wiphy,
if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
vlansdata->vif.type != NL80211_IFTYPE_AP) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -EINVAL;
}
if (params->vlan->ieee80211_ptr->use_4addr) {
if (vlansdata->u.vlan.sta) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -EBUSY;
}
@@ -997,7 +997,7 @@ static int ieee80211_change_station(struct wiphy *wiphy,
if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
rate_control_rate_init(sta);
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))