From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 14 Dec 2016 19:47:01 +0000 (+0100)
Subject: mac80211: minstrel: make prob_ewma u16 instead of u32
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4cae4cd10d058eb4057e20cb72e82fe76ae739af;p=linux.git

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 ea86e67841549..be6c3f35f48b3 100644
--- 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 */