mac80211: implement hardware offload for remain-on-channel

This allows drivers to support remain-on-channel
offload if they implement smarter timing or need
to use a device implementation like iwlwifi.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 4b088b3c25e8..485d36bc9a46 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -609,6 +609,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
         ieee80211_led_names(local);
 
+        ieee80211_hw_roc_setup(local);
+
         return local_to_hw(local);
 }
 EXPORT_SYMBOL(ieee80211_alloc_hw);
@@ -753,7 +755,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
                 }
         }
 
-        local->hw.wiphy->max_remain_on_channel_duration = 5000;
+        if (!local->ops->remain_on_channel)
+                local->hw.wiphy->max_remain_on_channel_duration = 5000;
 
         result = wiphy_register(local->hw.wiphy);
         if (result < 0)