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--- a/include/net/mac80211.h
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+++ b/include/net/mac80211.h
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@@ -659,6 +659,8 @@ ieee80211_tx_info_clear_status(struct ie
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* @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index
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* @RX_FLAG_40MHZ: HT40 (40 MHz) was used
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* @RX_FLAG_SHORT_GI: Short guard interval was used
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+ * @RX_FLAG_NO_SIGNAL_VAL: The signal strength value is not present.
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+ * Valid only for data frames (mainly A-MPDU)
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*/
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enum mac80211_rx_flags {
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RX_FLAG_MMIC_ERROR = 1<<0,
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@@ -672,6 +674,7 @@ enum mac80211_rx_flags {
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RX_FLAG_HT = 1<<9,
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RX_FLAG_40MHZ = 1<<10,
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RX_FLAG_SHORT_GI = 1<<11,
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+ RX_FLAG_NO_SIGNAL_VAL = 1<<12,
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};
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/**
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--- a/net/mac80211/rx.c
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+++ b/net/mac80211/rx.c
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@@ -177,7 +177,8 @@ ieee80211_add_rx_radiotap_header(struct
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pos += 2;
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/* IEEE80211_RADIOTAP_DBM_ANTSIGNAL */
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- if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
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+ if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM &&
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+ !(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
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*pos = status->signal;
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rthdr->it_present |=
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cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
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@@ -1310,8 +1311,10 @@ ieee80211_rx_h_sta_process(struct ieee80
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sta->rx_fragments++;
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sta->rx_bytes += rx->skb->len;
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- sta->last_signal = status->signal;
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- ewma_add(&sta->avg_signal, -status->signal);
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+ if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
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+ sta->last_signal = status->signal;
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+ ewma_add(&sta->avg_signal, -status->signal);
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+ }
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if (status->chains) {
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sta->chains = status->chains;
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