mac80211: minstrel: make prob_ewma u16 instead of u32

Saves about 1.2 KiB memory per station

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h
index ea86e67..be6c3f3 100644 (file)
--- a/net/mac80211/rc80211_minstrel.h
+++ b/net/mac80211/rc80211_minstrel.h
@@ -59,7 +59,7 @@ struct minstrel_rate_stats {
        /* statistis of packet delivery probability
         *  prob_ewma - exponential weighted moving average of prob
         *  prob_ewmsd - exp. weighted moving standard deviation of prob */
-       unsigned int prob_ewma;
+       u16 prob_ewma;
        u16 prob_ewmv;
 
        /* maximum retry counts */