From fe8431f89e25de722610ee5beb2892bd019d1fed Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 1 Mar 2012 18:00:07 +0100 Subject: mac80211: add an rx flag for ignoring a packet's signal strength For A-MPDU rx it makes sense to only process the signal strength once per aggregate instead of once per subframe. Additonally, some hardware (e.g. Atheros) only provides valid signal strength information for the last subframe. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- net/mac80211/rx.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 3cf011fc97f4..f3b515d16f24 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -177,7 +177,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, 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 ieee80211_rx_data *rx) 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); + } /* * Change STA power saving mode only at the end of a frame -- cgit v1.2.3