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mac80211: use DECLARE_EWMA

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Instead of using the out-of-line average calculation, use the new
DECLARE_EWMA() macro to declare a signal EWMA, and use that.

This actually *reduces* the code size slightly (on x86-64) while
also reducing the station info size by 80 bytes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2015-07-13 12:26:46 +02:00
parent 2377799c08
commit 40d9a38ad3
5 changed files with 12 additions and 10 deletions
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9
net/mac80211/sta_info.c
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@@ -341,9 +341,9 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
ktime_get_ts(&uptime);
sta->last_connected = uptime.tv_sec;
ewma_init(&sta->avg_signal, 1024, 8);
ewma_signal_init(&sta->avg_signal);
for (i = 0; i < ARRAY_SIZE(sta->chain_signal_avg); i++)
ewma_init(&sta->chain_signal_avg[i], 1024, 8);
ewma_signal_init(&sta->chain_signal_avg[i]);
if (local->ops->wake_tx_queue) {
void *txq_data;
@@ -1896,7 +1896,8 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
}
if (!(sinfo->filled & BIT(NL80211_STA_INFO_SIGNAL_AVG))) {
sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
sinfo->signal_avg =
(s8) -ewma_signal_read(&sta->avg_signal);
sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
}
}
@@ -1911,7 +1912,7 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
sinfo->chain_signal[i] = sta->chain_signal_last[i];
sinfo->chain_signal_avg[i] =
(s8) -ewma_read(&sta->chain_signal_avg[i]);
(s8) -ewma_signal_read(&sta->chain_signal_avg[i]);
}
}