Commit 91493e8e authored by Christian Lamparter's avatar Christian Lamparter Committed by Kalle Valo
Browse files

ath10k: fix recent bandwidth conversion bug



The commit "cfg80211: make RATE_INFO_BW_20 the default" changed
the index of RATE_INFO_BW_20, but the updates to ath10k missed
the special bandwidth calculation case in
ath10k_update_per_peer_tx_stats().

This will fix below warning,

 WARNING: CPU: 0 PID: 609 at net/wireless/util.c:1254
 cfg80211_calculate_bitrate+0x174/0x220
 invalid rate bw=1, mcs=9, nss=2

 (unwind_backtrace) from
 (cfg80211_calculate_bitrate+0x174/0x220)
 (cfg80211_calculate_bitrate) from
 (nl80211_put_sta_rate+0x44/0x1dc)from
 (nl80211_put_sta_rate) from
 (nl80211_send_station+0x388/0xaf0)
 (nl80211_get_station+0xa8/0xec)
 [ end trace da8257d6a850e91a ]

Fixes: 842be75c ("cfg80211: make RATE_INFO_BW_20 the default")
Signed-off-by: default avatarChristian Lamparter <chunkeey@gmail.com>
Signed-off-by: default avatarAnilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 8ebee73b
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+24 −18
Original line number Diff line number Diff line
@@ -724,6 +724,28 @@ struct amsdu_subframe_hdr {

#define GROUP_ID_IS_SU_MIMO(x) ((x) == 0 || (x) == 63)

static inline u8 ath10k_bw_to_mac80211_bw(u8 bw)
{
	u8 ret = 0;

	switch (bw) {
	case 0:
		ret = RATE_INFO_BW_20;
		break;
	case 1:
		ret = RATE_INFO_BW_40;
		break;
	case 2:
		ret = RATE_INFO_BW_80;
		break;
	case 3:
		ret = RATE_INFO_BW_160;
		break;
	}

	return ret;
}

static void ath10k_htt_rx_h_rates(struct ath10k *ar,
				  struct ieee80211_rx_status *status,
				  struct htt_rx_desc *rxd)
@@ -826,23 +848,7 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
		if (sgi)
			status->enc_flags |= RX_ENC_FLAG_SHORT_GI;

		switch (bw) {
		/* 20MHZ */
		case 0:
			break;
		/* 40MHZ */
		case 1:
			status->bw = RATE_INFO_BW_40;
			break;
		/* 80MHZ */
		case 2:
			status->bw = RATE_INFO_BW_80;
			break;
		case 3:
			status->bw = RATE_INFO_BW_160;
			break;
		}

		status->bw = ath10k_bw_to_mac80211_bw(bw);
		status->encoding = RX_ENC_VHT;
		break;
	default:
@@ -2550,7 +2556,7 @@ ath10k_update_per_peer_tx_stats(struct ath10k *ar,
		arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;

	arsta->txrate.nss = txrate.nss;
	arsta->txrate.bw = txrate.bw + RATE_INFO_BW_20;
	arsta->txrate.bw = ath10k_bw_to_mac80211_bw(txrate.bw);
}

static void ath10k_htt_fetch_peer_stats(struct ath10k *ar,