mac80211: stop queues before rate control updation

Stop tx queues before updating rate control to ensure
proper rate selection. Otherwise packets can be transmitted
in 40 Mhz whereas hw is configured in HT20.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4f6b2675e41d43fd8335e35094875b41774d9ca8..746595597b68417671393e9ac5c21c18f5669026 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -232,6 +232,9 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
                WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type));
        }
 
+       ieee80211_stop_queues_by_reason(&sdata->local->hw,
+                                       IEEE80211_QUEUE_STOP_REASON_CSA);
+
        /* channel_type change automatically detected */
        ieee80211_hw_config(local, 0);
 
@@ -245,6 +248,9 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
                rcu_read_unlock();
        }
 
+       ieee80211_wake_queues_by_reason(&sdata->local->hw,
+                                       IEEE80211_QUEUE_STOP_REASON_CSA);
+
        ht_opmode = le16_to_cpu(hti->operation_mode);
 
        /* if bss configuration changed store the new one */