mac80211: disable powersave if pm_qos asks for low latency
When an application asks for a latency lower than the beacon interval
there's nothing we can do -- we need to stay awake and not have the
AP buffer frames for us. Add code to automatically calculate this
constraint in mac80211 so drivers need not concern themselves with it.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 6240f76..5d60deb 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -317,7 +317,7 @@
ieee80211_set_wmm_default(sdata);
}
- ieee80211_recalc_ps(local);
+ ieee80211_recalc_ps(local, -1);
/*
* ieee80211_sta_work is disabled while network interface
@@ -574,7 +574,7 @@
hw_reconf_flags = 0;
}
- ieee80211_recalc_ps(local);
+ ieee80211_recalc_ps(local, -1);
/* do after stop to avoid reconfiguring when we stop anyway */
if (hw_reconf_flags)