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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: 842be75c77 ("cfg80211: make RATE_INFO_BW_20 the default")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Christian Lamparter 2018-03-28 12:19:55 +03:00 committed by Kalle Valo
parent 8ebee73b57
commit 91493e8e10
1 changed files with 24 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/net/wireless/ath/ath10k/htt_rx.c
View File

@ -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,