---- a/include/net/mac80211.h
-+++ b/include/net/mac80211.h
-@@ -729,6 +729,9 @@ enum mac80211_rx_flags {
- * @signal: signal strength when receiving this frame, either in dBm, in dB or
- * unspecified depending on the hardware capabilities flags
- * @IEEE80211_HW_SIGNAL_*
-+ * @chains: bitmask of receive chains for which separate signal strength
-+ * values were filled.
-+ * @chain_signal: per-chain signal strength, same format as @signal
- * @antenna: antenna used
- * @rate_idx: index of data rate into band's supported rates or MCS index if
- * HT rates are use (RX_FLAG_HT)
-@@ -749,6 +752,8 @@ struct ieee80211_rx_status {
- u8 band;
- u8 antenna;
- s8 signal;
-+ u8 chains;
-+ s8 chain_signal[4];
- u8 ampdu_delimiter_crc;
- };
-
---- a/net/mac80211/sta_info.h
-+++ b/net/mac80211/sta_info.h
-@@ -325,6 +325,11 @@ struct sta_info {
- unsigned long rx_dropped;
- int last_signal;
- struct ewma avg_signal;
-+
-+ u8 chains;
-+ s8 chain_signal_last[4];
-+ struct ewma chain_signal_avg[4];
-+
- /* Plus 1 for non-QoS frames */
- __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES + 1];
-
---- a/net/mac80211/rx.c
-+++ b/net/mac80211/rx.c
-@@ -1271,6 +1271,7 @@ ieee80211_rx_h_sta_process(struct ieee80
- struct sk_buff *skb = rx->skb;
- struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-+ int i;
-
- if (!sta)
- return RX_CONTINUE;
-@@ -1315,6 +1316,19 @@ ieee80211_rx_h_sta_process(struct ieee80
- ewma_add(&sta->avg_signal, -status->signal);
- }
-
-+ if (status->chains) {
-+ sta->chains = status->chains;
-+ for (i = 0; i < 4; i++) {
-+ int signal = status->chain_signal[i];
-+
-+ if (!(status->chains & BIT(i)))
-+ continue;
-+
-+ sta->chain_signal_last[i] = signal;
-+ ewma_add(&sta->chain_signal_avg[i], -signal);
-+ }
-+ }
-+
- /*
- * Change STA power saving mode only at the end of a frame
- * exchange sequence.
---- a/net/mac80211/sta_info.c
-+++ b/net/mac80211/sta_info.c
-@@ -254,6 +254,8 @@ struct sta_info *sta_info_alloc(struct i
- do_posix_clock_monotonic_gettime(&uptime);
- sta->last_connected = uptime.tv_sec;
- ewma_init(&sta->avg_signal, 1024, 8);
-+ for (i = 0; i < ARRAY_SIZE(sta->chain_signal_avg); i++)
-+ ewma_init(&sta->chain_signal_avg[i], 1024, 8);
-
- if (sta_prepare_rate_control(local, sta, gfp)) {
- kfree(sta);
---- a/include/net/cfg80211.h
-+++ b/include/net/cfg80211.h
-@@ -549,6 +549,8 @@ struct station_parameters {
- * @STATION_INFO_STA_FLAGS: @sta_flags filled
- * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
- * @STATION_INFO_T_OFFSET: @t_offset filled
-+ * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
-+ * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
- */
- enum station_info_flags {
- STATION_INFO_INACTIVE_TIME = 1<<0,
-@@ -572,6 +574,8 @@ enum station_info_flags {
- STATION_INFO_STA_FLAGS = 1<<18,
- STATION_INFO_BEACON_LOSS_COUNT = 1<<19,
- STATION_INFO_T_OFFSET = 1<<20,
-+ STATION_INFO_CHAIN_SIGNAL = 1<<21,
-+ STATION_INFO_CHAIN_SIGNAL_AVG = 1<<22,
- };
-
- /**
-@@ -655,6 +659,9 @@ struct sta_bss_parameters {
- * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
- * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
- * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
-+ * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
-+ * @chain_signal: per-chain signal strength of last received packet in dBm
-+ * @chain_signal_avg: per-chain signal strength average in dBm
- * @txrate: current unicast bitrate from this station
- * @rxrate: current unicast bitrate to this station
- * @rx_packets: packets received from this station
-@@ -687,6 +694,11 @@ struct station_info {
- u8 plink_state;
- s8 signal;
- s8 signal_avg;
-+
-+ u8 chains;
-+ s8 chain_signal[4];
-+ s8 chain_signal_avg[4];
-+
- struct rate_info txrate;
- struct rate_info rxrate;
- u32 rx_packets;
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -133,12 +133,8 @@ struct ath_rx_status {
u8 rs_num_delims;
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -955,6 +955,7 @@ static int ath9k_rx_skb_preprocess(struc
- bool *decrypt_error)
- {
- struct ath_hw *ah = common->ah;
+@@ -939,6 +939,7 @@ static int ath9k_rx_skb_preprocess(struc
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ bool discard_current = sc->rx.discard_next;
+ int i, j;
- /*
- * everything but the rate is checked here, the rate check is done
-@@ -980,6 +981,20 @@ static int ath9k_rx_skb_preprocess(struc
+ sc->rx.discard_next = rx_stats->rs_more;
+ if (discard_current)
+@@ -968,6 +969,21 @@ static int ath9k_rx_skb_preprocess(struc
if (rx_stats->rs_moreaggr)
rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;
+ j++;
+ }
+
++
+ sc->rx.discard_next = false;
return 0;
}
+@@ -1077,7 +1093,7 @@ static int ath_process_fft(struct ath_so
+ fft_sample.tlv.length = __cpu_to_be16(length);
+
+ fft_sample.freq = __cpu_to_be16(ah->curchan->chan->center_freq);
+- fft_sample.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
++ fft_sample.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
+ fft_sample.noise = ah->noise;
+ switch (len - SPECTRAL_HT20_TOTAL_DATA_LEN) {
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-@@ -458,12 +458,12 @@ int ath9k_hw_process_rxdesc_edma(struct
+@@ -476,12 +476,12 @@ int ath9k_hw_process_rxdesc_edma(struct
/* XXX: Keycache */
rxs->rs_rssi = MS(rxsp->status5, AR_RxRSSICombined);
rxs->rs_keyix = MS(rxsp->status11, AR_KeyIdx);
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
-@@ -553,25 +553,25 @@ int ath9k_hw_rxprocdesc(struct ath_hw *a
+@@ -554,25 +554,25 @@ int ath9k_hw_rxprocdesc(struct ath_hw *a
if (ads.ds_rxstatus8 & AR_PostDelimCRCErr) {
rs->rs_rssi = ATH9K_RSSI_BAD;
AR_RxRSSIAnt12);
}
if (ads.ds_rxstatus8 & AR_RxKeyIdxValid)
---- a/drivers/net/wireless/ath/ath9k/debug.c
-+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -997,12 +997,12 @@ void ath_debug_stat_rx(struct ath_softc
- #ifdef CONFIG_ATH9K_MAC_DEBUG
- spin_lock(&sc->debug.samp_lock);
- RX_SAMP_DBG(jiffies) = jiffies;
-- RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
-- RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1;
-- RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2;
-- RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0;
-- RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1;
-- RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2;
-+ RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl[0];
-+ RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl[1];
-+ RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl[2];
-+ RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext[0];
-+ RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext[1];
-+ RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext[2];
- RX_SAMP_DBG(antenna) = rs->rs_antenna;
- RX_SAMP_DBG(rssi) = rs->rs_rssi;
- RX_SAMP_DBG(rate) = rs->rs_rate;
---- a/include/linux/nl80211.h
-+++ b/include/linux/nl80211.h
-@@ -1760,6 +1760,8 @@ enum nl80211_sta_bss_param {
- * @NL80211_STA_INFO_STA_FLAGS: Contains a struct nl80211_sta_flag_update.
- * @NL80211_STA_INFO_BEACON_LOSS: count of times beacon loss was detected (u32)
- * @NL80211_STA_INFO_T_OFFSET: timing offset with respect to this STA (s64)
-+ * @NL80211_STA_INFO_CHAIN_SIGNAL: per-chain signal strength of last PPDU
-+ * @NL80211_STA_INFO_CHAIN_SIGNAL_AVG: per-chain signal strength average
- * @__NL80211_STA_INFO_AFTER_LAST: internal
- * @NL80211_STA_INFO_MAX: highest possible station info attribute
- */
-@@ -1784,6 +1786,8 @@ enum nl80211_sta_info {
- NL80211_STA_INFO_STA_FLAGS,
- NL80211_STA_INFO_BEACON_LOSS,
- NL80211_STA_INFO_T_OFFSET,
-+ NL80211_STA_INFO_CHAIN_SIGNAL,
-+ NL80211_STA_INFO_CHAIN_SIGNAL_AVG,
-
- /* keep last */
- __NL80211_STA_INFO_AFTER_LAST,
---- a/net/wireless/nl80211.c
-+++ b/net/wireless/nl80211.c
-@@ -2769,6 +2769,32 @@ nla_put_failure:
- return false;
- }
-
-+static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
-+ int id)
-+{
-+ void *attr;
-+ int i = 0;
-+
-+ if (!mask)
-+ return true;
-+
-+ attr = nla_nest_start(msg, id);
-+ if (!attr)
-+ return false;
-+
-+ for (i = 0; i < 4; i++) {
-+ if (!(mask & BIT(i)))
-+ continue;
-+
-+ if (nla_put_u8(msg, i, signal[i]))
-+ return false;
-+ }
-+
-+ nla_nest_end(msg, attr);
-+
-+ return true;
-+}
-+
- static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
- int flags,
- struct cfg80211_registered_device *rdev,
-@@ -2830,6 +2856,18 @@ static int nl80211_send_station(struct s
- default:
- break;
- }
-+ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
-+ if (!nl80211_put_signal(msg, sinfo->chains,
-+ sinfo->chain_signal,
-+ NL80211_STA_INFO_CHAIN_SIGNAL))
-+ goto nla_put_failure;
-+ }
-+ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
-+ if (!nl80211_put_signal(msg, sinfo->chains,
-+ sinfo->chain_signal_avg,
-+ NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
-+ goto nla_put_failure;
-+ }
- if (sinfo->filled & STATION_INFO_TX_BITRATE) {
- if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
- NL80211_STA_INFO_TX_BITRATE))
---- a/net/mac80211/cfg.c
-+++ b/net/mac80211/cfg.c
-@@ -367,6 +367,7 @@ static void sta_set_sinfo(struct sta_inf
- struct ieee80211_sub_if_data *sdata = sta->sdata;
- struct ieee80211_local *local = sdata->local;
- struct timespec uptime;
-+ int i;
-
- sinfo->generation = sdata->local->sta_generation;
-
-@@ -406,6 +407,17 @@ static void sta_set_sinfo(struct sta_inf
- sinfo->signal = (s8)sta->last_signal;
- sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
- }
-+ if (sta->chains) {
-+ sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
-+ STATION_INFO_CHAIN_SIGNAL_AVG;
-+
-+ sinfo->chains = sta->chains;
-+ for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
-+ sinfo->chain_signal[i] = sta->chain_signal_last[i];
-+ sinfo->chain_signal_avg[i] =
-+ (s8) -ewma_read(&sta->chain_signal_avg[i]);
-+ }
-+ }
-
- sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
-
--- a/drivers/net/wireless/ath/ath9k/dfs.c
+++ b/drivers/net/wireless/ath/ath9k/dfs.c
-@@ -164,8 +164,8 @@ void ath9k_dfs_process_phyerr(struct ath
+@@ -158,8 +158,8 @@ void ath9k_dfs_process_phyerr(struct ath
return;
}
* hardware stores this as 8 bit signed value.
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
-@@ -529,14 +529,14 @@ void ath_ant_comb_scan(struct ath_softc
+@@ -546,14 +546,14 @@ void ath_ant_comb_scan(struct ath_softc
struct ath_ant_comb *antcomb = &sc->ant_comb;
int alt_ratio = 0, alt_rssi_avg = 0, main_rssi_avg = 0, curr_alt_set;
int curr_main_set;
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