package/kernel/mac80211/patches/341-mac80211-minstrel-make-prob_ewma-u16-instead-of-u32.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Wed, 14 Dec 2016 20:19:56 +0100
   3 Subject: [PATCH] mac80211: minstrel: make prob_ewma u16 instead of u32
   4
   5 Saves about 1.2 KiB memory per station
   6
   7 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   8 ---
   9
  10 --- a/net/mac80211/rc80211_minstrel.h
  11 +++ b/net/mac80211/rc80211_minstrel.h
  12 @@ -59,7 +59,7 @@ struct minstrel_rate_stats {
  13         /* statistis of packet delivery probability
  14          *  prob_ewma - exponential weighted moving average of prob
  15          *  prob_ewmsd - exp. weighted moving standard deviation of prob */
  16 -       unsigned int prob_ewma;
  17 +       u16 prob_ewma;
  18         u16 prob_ewmv;
  19
  20         /* maximum retry counts */