From: Felix Fietkau Date: Sat, 16 Mar 2013 16:00:27 +0000 (+0100) Subject: mac80211/minstrel_ht: do not sample actively used rates X-Git-Tag: v3.10-rc2~34^2~21^2^2~117^2~35 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a0ca796c460259bc079631d2d148ffff1d1fc736;p=platform%2Fupstream%2Fkernel-adaptation-pc.git mac80211/minstrel_ht: do not sample actively used rates max_tp_rate2 and max_prob_rate tend to get used occasionally during retransmission, which is more useful for the statistics than probing with individual probe packets. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index 0fc9449..d2b264d 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -648,10 +648,13 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) /* * Sampling might add some overhead (RTS, no aggregation) * to the frame. Hence, don't use sampling for the currently - * used max TP rate. + * used rates. */ - if (sample_idx == mi->max_tp_rate) + if (sample_idx == mi->max_tp_rate || + sample_idx == mi->max_tp_rate2 || + sample_idx == mi->max_prob_rate) return -1; + /* * Do not sample if the probability is already higher than 95% * to avoid wasting airtime.