Commit ef47a5e4 authored by Felix Fietkau's avatar Felix Fietkau Committed by Greg Kroah-Hartman
Browse files

mac80211/minstrel_ht: fix cck rate sampling

commit 1cd15857

 upstream.

The CCK group needs special treatment to set the right flags and rate
index. Add this missing check to prevent setting broken rates for tx
packets.
Signed-off-by: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 57fe9f79
......@@ -804,10 +804,18 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
sample_group = &minstrel_mcs_groups[sample_idx / MCS_GROUP_RATES];
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
rate->count = 1;
if (sample_idx / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) {
int idx = sample_idx % ARRAY_SIZE(mp->cck_rates);
rate->idx = mp->cck_rates[idx];
rate->flags = 0;
return;
}
rate->idx = sample_idx % MCS_GROUP_RATES +
(sample_group->streams - 1) * MCS_GROUP_RATES;
rate->flags = IEEE80211_TX_RC_MCS | sample_group->flags;
rate->count = 1;
}
static void
......
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