mac80211: A couple of fixes to dynamic power save.

a) hw_config() should not be called from siwpower() for the drivers which do not support
   dynamic powersave.
b) IEEE80211_HW_NO_STACK_DYNAMIC_PS needs to be verified in set_associated() also before
   enabling the power save timers.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index b688425d7555..b3c99d3c61ba 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -751,7 +751,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
         bss_info_changed |= BSS_CHANGED_BASIC_RATES;
         ieee80211_bss_info_change_notify(sdata, bss_info_changed);
 
-        if (local->powersave) {
+        if (local->powersave &&
+                        !(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS)) {
                 if (local->dynamic_ps_timeout > 0)
                         mod_timer(&local->dynamic_ps_timer, jiffies +
                                   msecs_to_jiffies(local->dynamic_ps_timeout));