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net80211: fix a typo in Rx MCS set for unequal modulation case

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RX MCS set defines which MCSs are supported for RX, bits 0-31 are for equal
modulation of the streams, bits 33-76 are for unequal case. Current code checks
txstreams variable instead of rxstreams to set bits from 53 to 76 for 4 spatial
streams case.

The modulations are defined in tables 19-38 and 19-41 of the IEEE Std
802.11-2020.

Spotted by bz in https://reviews.freebsd.org/D39476

Reviewed by:		bz
Approved by:		bz
Sponsored by:		Serenity Cybersecurity, LLC
Differential Revision:	https://reviews.freebsd.org/D39568
This commit is contained in:
Mikhail Pchelin 2023-04-14 18:20:09 +03:00
parent ea26545cc5
commit 2f53b5991c
1 changed files with 1 additions and 1 deletions
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2
sys/net80211/ieee80211_ht.c
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@ -3203,7 +3203,7 @@ ieee80211_set_mcsset(struct ieee80211com *ic, uint8_t *frm)
for (i = 39; i <= 52; i++)
setbit(frm, i);
}
if (ic->ic_txstream >= 4) {
if (ic->ic_rxstream >= 4) {
for (i = 53; i <= 76; i++)
setbit(frm, i);
}