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Revert "mac80211: do not use low data rates for data frames with no ack flag" 

This reverts commit d333322361 ("mac80211: do not use low data rates for
data frames with no ack flag").

Returning false early in rate_control_send_low breaks sending broadcast
packets, since rate control will not select a rate for it.

Before re-introducing a fixed version of this patch, we should probably also
make some changes to rate control to be more conservative in selecting rates
for no-ack packets and also prevent using probing rates on them, since we won't
get any feedback.

Fixes: d333322361 ("mac80211: do not use low data rates for data frames with no ack flag")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20210906083559.9109-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Felix Fietkau 2021-09-06 10:35:59 +02:00 committed by Johannes Berg
parent 977d293e23
commit 98d46b021f
1 changed files with 0 additions and 4 deletions
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4
net/mac80211/rate.c
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@ -392,10 +392,6 @@ static bool rate_control_send_low(struct ieee80211_sta *pubsta,
int mcast_rate;
bool use_basicrate = false;
if (ieee80211_is_tx_data(txrc->skb) &&
info->flags & IEEE80211_TX_CTL_NO_ACK)
return false;
if (!pubsta || rc_no_data_or_no_ack_use_min(txrc)) {
__rate_control_send_low(txrc->hw, sband, pubsta, info,
txrc->rate_idx_mask);