mac80211: remove channel use statistics

[~andy/linux] / net / mac80211 / rx.c

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index cf0de3b0fe243aa7c6f148821cc9583862e276e2..9400a9766a7727ccf1cedcc65277e0da37e37b1d 100644 (file)
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -387,50 +387,8 @@ static void ieee80211_verify_ip_alignment(struct ieee80211_rx_data *rx)
 }
 
 
-static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
-                                  struct sk_buff *skb,
-                                  struct ieee80211_rx_status *status,
-                                  struct ieee80211_rate *rate)
-{
-       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-       u32 load = 0, hdrtime;
-
-       /* Estimate total channel use caused by this frame */
-
-       /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
-        * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
-       if (status->band == IEEE80211_BAND_5GHZ ||
-           (status->band == IEEE80211_BAND_5GHZ &&
-            rate->flags & IEEE80211_RATE_ERP_G))
-               hdrtime = CHAN_UTIL_HDR_SHORT;
-       else
-               hdrtime = CHAN_UTIL_HDR_LONG;
-
-       load = hdrtime;
-       if (!is_multicast_ether_addr(hdr->addr1))
-               load += hdrtime;
-
-       /* TODO: optimise again */
-       load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
-
-       /* Divide channel_use by 8 to avoid wrapping around the counter */
-       load >>= CHAN_UTIL_SHIFT;
-
-       return load;
-}
-
 /* rx handlers */
 
-static ieee80211_rx_result
-ieee80211_rx_h_if_stats(struct ieee80211_rx_data *rx)
-{
-       if (rx->sta)
-               rx->sta->channel_use_raw += rx->load;
-       rx->sdata->channel_use_raw += rx->load;
-       return RX_CONTINUE;
-}
-
 static ieee80211_rx_result
 ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx)
 {
@@ -1780,7 +1738,6 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx)
 typedef ieee80211_rx_result (*ieee80211_rx_handler)(struct ieee80211_rx_data *);
 static ieee80211_rx_handler ieee80211_rx_handlers[] =
 {
-       ieee80211_rx_h_if_stats,
        ieee80211_rx_h_passive_scan,
        ieee80211_rx_h_check,
        ieee80211_rx_h_decrypt,
@@ -1939,7 +1896,6 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
                                         struct sk_buff *skb,
                                         struct ieee80211_rx_status *status,
-                                        u32 load,
                                         struct ieee80211_rate *rate)
 {
        struct ieee80211_local *local = hw_to_local(hw);
@@ -1958,7 +1914,6 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
        rx.local = local;
 
        rx.status = status;
-       rx.load = load;
        rx.rate = rate;
        rx.fc = le16_to_cpu(hdr->frame_control);
        type = rx.fc & IEEE80211_FCTL_FTYPE;
@@ -2067,7 +2022,6 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
        struct ieee80211_rx_status status;
        u16 head_seq_num, buf_size;
        int index;
-       u32 pkt_load;
        struct ieee80211_supported_band *sband;
        struct ieee80211_rate *rate;
 
@@ -2102,12 +2056,9 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
                                        sizeof(status));
                                sband = local->hw.wiphy->bands[status.band];
                                rate = &sband->bitrates[status.rate_idx];
-                               pkt_load = ieee80211_rx_load_stats(local,
-                                               tid_agg_rx->reorder_buf[index],
-                                               &status, rate);
                                __ieee80211_rx_handle_packet(hw,
                                        tid_agg_rx->reorder_buf[index],
-                                       &status, pkt_load, rate);
+                                       &status, rate);
                                tid_agg_rx->stored_mpdu_num--;
                                tid_agg_rx->reorder_buf[index] = NULL;
                        }
@@ -2149,11 +2100,8 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
                        sizeof(status));
                sband = local->hw.wiphy->bands[status.band];
                rate = &sband->bitrates[status.rate_idx];
-               pkt_load = ieee80211_rx_load_stats(local,
-                                       tid_agg_rx->reorder_buf[index],
-                                       &status, rate);
                __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
-                                            &status, pkt_load, rate);
+                                            &status, rate);
                tid_agg_rx->stored_mpdu_num--;
                tid_agg_rx->reorder_buf[index] = NULL;
                tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
@@ -2232,7 +2180,6 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
                    struct ieee80211_rx_status *status)
 {
        struct ieee80211_local *local = hw_to_local(hw);
-       u32 pkt_load;
        struct ieee80211_rate *rate = NULL;
        struct ieee80211_supported_band *sband;
 
@@ -2272,11 +2219,8 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
                return;
        }
 
-       pkt_load = ieee80211_rx_load_stats(local, skb, status, rate);
-       local->channel_use_raw += pkt_load;
-
        if (!ieee80211_rx_reorder_ampdu(local, skb))
-               __ieee80211_rx_handle_packet(hw, skb, status, pkt_load, rate);
+               __ieee80211_rx_handle_packet(hw, skb, status, rate);
 
        rcu_read_unlock();
 }