1 files changed, 44 insertions, 0 deletions
diff --git a/package/mac80211/patches/580-mac80211_ignore_bad_signal_values.patch b/package/mac80211/patches/580-mac80211_ignore_bad_signal_values.patch
new file mode 100644
index 000000000..b6d88b0ba
--- /dev/null
+++ b/package/mac80211/patches/580-mac80211_ignore_bad_signal_values.patch
@@ -0,0 +1,44 @@
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -659,6 +659,8 @@ ieee80211_tx_info_clear_status(struct ie
+  * @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index
+  * @RX_FLAG_40MHZ: HT40 (40 MHz) was used
+  * @RX_FLAG_SHORT_GI: Short guard interval was used
++ * @RX_FLAG_NO_SIGNAL_VAL: The signal strength value is not present.
++ *	Valid only for data frames (mainly A-MPDU)
+  */
+ enum mac80211_rx_flags {
+ 	RX_FLAG_MMIC_ERROR	= 1<<0,
+@@ -672,6 +674,7 @@ enum mac80211_rx_flags {
+ 	RX_FLAG_HT		= 1<<9,
+ 	RX_FLAG_40MHZ		= 1<<10,
+ 	RX_FLAG_SHORT_GI	= 1<<11,
++	RX_FLAG_NO_SIGNAL_VAL	= 1<<12,
+ };
+ 
+ /**
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -176,7 +176,8 @@ ieee80211_add_rx_radiotap_header(struct 
+ 	pos += 2;
+ 
+ 	/* IEEE80211_RADIOTAP_DBM_ANTSIGNAL */
+-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
++	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM &&
++	    !(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
+ 		*pos = status->signal;
+ 		rthdr->it_present |=
+ 			cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
+@@ -1309,8 +1310,10 @@ ieee80211_rx_h_sta_process(struct ieee80
+ 
+ 	sta->rx_fragments++;
+ 	sta->rx_bytes += rx->skb->len;
+-	sta->last_signal = status->signal;
+-	ewma_add(&sta->avg_signal, -status->signal);
++	if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
++		sta->last_signal = status->signal;
++		ewma_add(&sta->avg_signal, -status->signal);
++	}
+ 
+ 	if (status->chains) {
+ 		sta->chains = status->chains;