From 36786024df993f0fb5e7d1b56058c4f48f24d5e8 Mon Sep 17 00:00:00 2001 From: Marek Kwaczynski Date: Mon, 10 Feb 2014 11:25:25 +0100 Subject: [PATCH] ath10k: Set proper nss value for the peer It was found during testing the nss calculation does not cover all corner cases. Station could request eq. only MCS8 and MCS9 (nss=2 specific). Next num_rates=2 so the driver sets nss=(max((2+7)/8, 1))=1. Which is wrong. The in-driver calculation was introduced prior (commit ddcc347b70 mac80211: fix rx_nss calculation for drivers with hw rc). Since it's fixed, use mac80211 provided value from now. End user will experience lower throuhputs than expected if the nss is wrongly calculated. Signed-off-by: Marek Kwaczynski Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 144b4d605267..e6bf2e8da770 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -1149,7 +1149,7 @@ static void ath10k_peer_assoc_h_ht(struct ath10k *ar, arg->peer_ht_rates.rates[n++] = i; arg->peer_ht_rates.num_rates = n; - arg->peer_num_spatial_streams = max((n+7) / 8, 1); + arg->peer_num_spatial_streams = sta->rx_nss; ath10k_dbg(ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n", arg->addr, -- 2.20.1