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Subject[PATCH 4.3 085/125] ath10k: use stations current operating mode from assoc request
Date
4.3-stable review patch.  If anyone has any objections, please let me know.

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

From: Vivek Natarajan <nataraja@qti.qualcomm.com>

commit 72f8cef5d1155209561b01e092ce1a04ad50c4cb upstream.

The current number of spatial streams used by the client is advertised
as a separate IE in assoc request. Use this information to set
the NSS operating mode.

Fixes: 45c9abc059fa ("ath10k: implement more versatile set_bitrate_mask").
Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/net/wireless/ath/ath10k/mac.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2083,7 +2083,8 @@ static void ath10k_peer_assoc_h_ht(struc
enum ieee80211_band band;
const u8 *ht_mcs_mask;
const u16 *vht_mcs_mask;
- int i, n, max_nss;
+ int i, n;
+ u8 max_nss;
u32 stbc;

lockdep_assert_held(&ar->conf_mutex);
@@ -2168,7 +2169,7 @@ static void ath10k_peer_assoc_h_ht(struc
arg->peer_ht_rates.rates[i] = i;
} else {
arg->peer_ht_rates.num_rates = n;
- arg->peer_num_spatial_streams = max_nss;
+ arg->peer_num_spatial_streams = min(sta->rx_nss, max_nss);
}

ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",



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