diff options
| author | Felix Fietkau <nbd@nbd.name> | 2016-12-14 22:46:58 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-12-15 13:07:52 +0300 |
| commit | 1109dc392ea0248f7bfca3537011aa7afaa05cee (patch) | |
| tree | cdd84cf8f30810fa3db97a84b1bea082782bface /net/mac80211/rc80211_minstrel.c | |
| parent | 95cd470c75a8822d35fa82a1b276d47da37229d1 (diff) | |
| download | linux-1109dc392ea0248f7bfca3537011aa7afaa05cee.tar.xz | |
mac80211: minstrel: remove cur_prob from debugfs
This field is redundant, because it is simply last success divided by
last attempt count. Removing it from the rate stats struct saves about
1.2 KiB per HT station.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rc80211_minstrel.c')
| -rw-r--r-- | net/mac80211/rc80211_minstrel.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 14c5ba3a1b1c..a284ea08f048 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -159,21 +159,23 @@ minstrel_update_rates(struct minstrel_priv *mp, struct minstrel_sta_info *mi) void minstrel_calc_rate_stats(struct minstrel_rate_stats *mrs) { + unsigned int cur_prob; + if (unlikely(mrs->attempts > 0)) { mrs->sample_skipped = 0; - mrs->cur_prob = MINSTREL_FRAC(mrs->success, mrs->attempts); + cur_prob = MINSTREL_FRAC(mrs->success, mrs->attempts); if (unlikely(!mrs->att_hist)) { - mrs->prob_ewma = mrs->cur_prob; + mrs->prob_ewma = cur_prob; } else { /* update exponential weighted moving variance */ mrs->prob_ewmsd = minstrel_ewmsd(mrs->prob_ewmsd, - mrs->cur_prob, + cur_prob, mrs->prob_ewma, EWMA_LEVEL); /*update exponential weighted moving avarage */ mrs->prob_ewma = minstrel_ewma(mrs->prob_ewma, - mrs->cur_prob, + cur_prob, EWMA_LEVEL); } mrs->att_hist += mrs->attempts; |