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    Subject[PATCH AUTOSEL 5.13 161/189] cfg80211: fix default HE tx bitrate mask in 2G band
    Date
    From: Ping-Ke Shih <pkshih@realtek.com>

    [ Upstream commit 9df66d5b9f45c39b3925d16e8947cc10009b186d ]

    In 2G band, a HE sta can only supports HT and HE, but not supports VHT.
    In this case, default HE tx bitrate mask isn't filled, when we use iw to
    set bitrates without any parameter.

    Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
    Link: https://lore.kernel.org/r/20210609075944.51130-1-pkshih@realtek.com
    Signed-off-by: Johannes Berg <johannes.berg@intel.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    net/wireless/nl80211.c | 9 ++++-----
    1 file changed, 4 insertions(+), 5 deletions(-)

    diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
    index fc9286afe3c9..912977bf3ec8 100644
    --- a/net/wireless/nl80211.c
    +++ b/net/wireless/nl80211.c
    @@ -4781,11 +4781,10 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
    sband->ht_cap.mcs.rx_mask,
    sizeof(mask->control[i].ht_mcs));

    - if (!sband->vht_cap.vht_supported)
    - continue;
    -
    - vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
    - vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
    + if (sband->vht_cap.vht_supported) {
    + vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
    + vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
    + }

    he_cap = ieee80211_get_he_iftype_cap(sband, wdev->iftype);
    if (!he_cap)
    --
    2.30.2
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