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    Subject[PATCH 4.20 035/352] iwlwifi: fw: do not set sgi bits for HE connection
    Date
    4.20-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    [ Upstream commit 5c2dbebb446539eb9640bf59a02756d6e7f1fc53 ]

    If the association supports HE, HT/VHT rates will never be used for Tx
    and therefore there's no need to set the sgi-per-channel-width-support
    bits, so don't set them in this case.

    Fixes: 110b32f065f3 ("iwlwifi: mvm: rs: add basic implementation of the new RS API handlers")
    Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
    Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
    index 7a98e1a1dc40..dabbc04853ac 100644
    --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
    +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
    @@ -98,8 +98,12 @@ static u8 rs_fw_sgi_cw_support(struct ieee80211_sta *sta)
    {
    struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
    struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
    + struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
    u8 supp = 0;

    + if (he_cap && he_cap->has_he)
    + return 0;
    +
    if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
    supp |= BIT(IWL_TLC_MNG_CH_WIDTH_20MHZ);
    if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
    --
    2.19.1


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