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openwrt-xburst/package/mac80211/patches/560-mac80211_minstrel_ht_sampling_fix.patch

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--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -415,10 +415,8 @@ minstrel_ht_tx_status(void *priv, struct
mi->sample_count--;
}
- if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) {
+ if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
mi->sample_packets += info->status.ampdu_len;
- minstrel_next_sample_idx(mi);
- }
for (i = 0; !last; i++) {
last = (i == IEEE80211_TX_MAX_RATES - 1) ||
@@ -553,13 +551,14 @@ minstrel_get_sample_rate(struct minstrel
sample_idx = sample_table[mg->column][mg->index];
mr = &mg->rates[sample_idx];
sample_idx += mi->sample_group * MCS_GROUP_RATES;
+ minstrel_next_sample_idx(mi);
/*
* When not using MRR, do not sample if the probability is already
* higher than 95% to avoid wasting airtime
*/
if (!mp->has_mrr && (mr->probability > MINSTREL_FRAC(95, 100)))
- goto next;
+ return -1;
/*
* Make sure that lower rates get sampled only occasionally,
@@ -568,17 +567,13 @@ minstrel_get_sample_rate(struct minstrel
if (minstrel_get_duration(sample_idx) >
minstrel_get_duration(mi->max_tp_rate)) {
if (mr->sample_skipped < 20)
- goto next;
+ return -1;
if (mi->sample_slow++ > 2)
- goto next;
+ return -1;
}
return sample_idx;
-
-next:
- minstrel_next_sample_idx(mi);
- return -1;
}
static void