From: Colin Ian King colin.i.king@gmail.com
commit 02a95374b5eebdbd3b6413fd7ddec151d2ea75a1 upstream.
Currently tx_params is being re-assigned with a new value and the previous setting IEEE80211_HT_MCS_TX_RX_DIFF is being overwritten. The assignment operator is incorrect, the original intent was to bit-wise or the value in. Fix this by replacing the = operator with |= instead.
Kudos to Christian Lamparter for suggesting the correct fix.
Fixes: fe8ee9ad80b2 ("carl9170: mac80211 glue and command interface") Signed-off-by: Colin Ian King colin.i.king@gmail.com Cc: Stable@vger.kernel.org Acked-by: Christian Lamparter chunkeey@gmail.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20220125004406.344422-1-colin.i.king@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/ath/carl9170/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/ath/carl9170/main.c +++ b/drivers/net/wireless/ath/carl9170/main.c @@ -1915,7 +1915,7 @@ static int carl9170_parse_eeprom(struct WARN_ON(!(tx_streams >= 1 && tx_streams <= IEEE80211_HT_MCS_TX_MAX_STREAMS));
- tx_params = (tx_streams - 1) << + tx_params |= (tx_streams - 1) << IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
carl9170_band_2GHz.ht_cap.mcs.tx_params |= tx_params;