mac80211: Fix HT rate control configuration

commit 4fa004373133ece3d9b1c0a7e243b0e53760b165 upstream.

Handling HT configuration changes involved setting the channel
with the new HT parameters and then issuing a rate_update()
notification to the driver.

This behavior changed after the off-channel changes. Now, the channel
is not updated with the new HT params in enable_ht() - instead, it
is now done when the scan work terminates. This results in the driver
depending on stale information, defaulting to non-HT mode always.

Fix this by passing the new channel type to the driver.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 5 insertions, 3 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 05a18f43e1bf..9072a412089e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -205,7 +205,8 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
                 sta = sta_info_get(local, bssid);
                 if (sta)
                         rate_control_rate_update(local, sband, sta,
-                                                 IEEE80211_RC_HT_CHANGED);
+                                                 IEEE80211_RC_HT_CHANGED,
+                                                 local->oper_channel_type);
                 rcu_read_unlock();
         }
 
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index cb9bd1f65e27..3e02ea4eecd1 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -69,7 +69,8 @@ static inline void rate_control_rate_init(struct sta_info *sta)
 
 static inline void rate_control_rate_update(struct ieee80211_local *local,
                                     struct ieee80211_supported_band *sband,
-                                    struct sta_info *sta, u32 changed)
+                                    struct sta_info *sta, u32 changed,
+                                    enum nl80211_channel_type oper_chan_type)
 {
         struct rate_control_ref *ref = local->rate_ctrl;
         struct ieee80211_sta *ista = &sta->sta;
@@ -77,7 +78,7 @@ static inline void rate_control_rate_update(struct ieee80211_local *local,
 
         if (ref && ref->ops->rate_update)
                 ref->ops->rate_update(ref->priv, sband, ista,
-                                      priv_sta, changed);
+                                      priv_sta, changed, oper_chan_type);
 }
 
 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,