From 589052904a60f00dd2cbc1d3488ee3f520a7de21 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 31 Jan 2008 19:48:25 +0100 Subject: [PATCH] mac80211: remove "dynamic" RX/TX handlers It doesn't really make sense to have extra pointers to the RX/TX handler arrays instead of just using the arrays directly, that also allows us to make them static. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/ieee80211.c | 2 -- net/mac80211/ieee80211_i.h | 13 -------- net/mac80211/rx.c | 80 ++++++++++++++++++++++------------------------ net/mac80211/tx.c | 9 +++--- 4 files changed, 43 insertions(+), 61 deletions(-) diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c index 83694fb..78fd918 100644 --- a/net/mac80211/ieee80211.c +++ b/net/mac80211/ieee80211.c @@ -1429,8 +1429,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.queues = 1; /* default */ local->mdev = mdev; - local->rx_handlers = ieee80211_rx_handlers; - local->tx_handlers = ieee80211_tx_handlers; local->bridge_packets = 1; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 21d54b2..1129a42 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -190,12 +190,6 @@ struct ieee80211_tx_stored_packet { unsigned int last_frag_rate_ctrl_probe; }; -typedef ieee80211_tx_result (*ieee80211_tx_handler) -(struct ieee80211_txrx_data *tx); - -typedef ieee80211_rx_result (*ieee80211_rx_handler) -(struct ieee80211_txrx_data *rx); - struct beacon_data { u8 *head, *tail; int head_len, tail_len; @@ -477,9 +471,6 @@ struct ieee80211_local { * deliver multicast frames both back to wireless * media and to the local net stack */ - ieee80211_rx_handler *rx_handlers; - ieee80211_tx_handler *tx_handlers; - struct list_head interfaces; bool sta_sw_scanning; @@ -779,11 +770,7 @@ int ieee80211_if_remove(struct net_device *dev, const char *name, int id); void ieee80211_if_free(struct net_device *dev); void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); -/* rx handling */ -extern ieee80211_rx_handler ieee80211_rx_handlers[]; - /* tx handling */ -extern ieee80211_tx_handler ieee80211_tx_handlers[]; void ieee80211_clear_tx_pending(struct ieee80211_local *local); void ieee80211_tx_pending(unsigned long data); int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev); diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 794917f..0ab9fef 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1448,42 +1448,6 @@ ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx) return RX_QUEUED; } -static void ieee80211_invoke_rx_handlers(struct ieee80211_local *local, - ieee80211_rx_handler *handlers, - struct ieee80211_txrx_data *rx, - struct sta_info *sta) -{ - ieee80211_rx_handler *handler; - ieee80211_rx_result res = RX_DROP_MONITOR; - - for (handler = handlers; *handler != NULL; handler++) { - res = (*handler)(rx); - - switch (res) { - case RX_CONTINUE: - continue; - case RX_DROP_UNUSABLE: - case RX_DROP_MONITOR: - I802_DEBUG_INC(local->rx_handlers_drop); - if (sta) - sta->rx_dropped++; - break; - case RX_QUEUED: - I802_DEBUG_INC(local->rx_handlers_queued); - break; - } - break; - } - - switch (res) { - case RX_DROP_MONITOR: - case RX_DROP_UNUSABLE: - case RX_CONTINUE: - dev_kfree_skb(rx->skb); - break; - } -} - static void ieee80211_rx_michael_mic_report(struct net_device *dev, struct ieee80211_hdr *hdr, struct sta_info *sta, @@ -1557,7 +1521,8 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev, rx->skb = NULL; } -ieee80211_rx_handler ieee80211_rx_handlers[] = +typedef ieee80211_rx_result (*ieee80211_rx_handler)(struct ieee80211_txrx_data *); +static ieee80211_rx_handler ieee80211_rx_handlers[] = { ieee80211_rx_h_if_stats, ieee80211_rx_h_passive_scan, @@ -1579,6 +1544,41 @@ ieee80211_rx_handler ieee80211_rx_handlers[] = NULL }; +static void ieee80211_invoke_rx_handlers(struct ieee80211_local *local, + struct ieee80211_txrx_data *rx, + struct sta_info *sta) +{ + ieee80211_rx_handler *handler; + ieee80211_rx_result res = RX_DROP_MONITOR; + + for (handler = ieee80211_rx_handlers; *handler != NULL; handler++) { + res = (*handler)(rx); + + switch (res) { + case RX_CONTINUE: + continue; + case RX_DROP_UNUSABLE: + case RX_DROP_MONITOR: + I802_DEBUG_INC(local->rx_handlers_drop); + if (sta) + sta->rx_dropped++; + break; + case RX_QUEUED: + I802_DEBUG_INC(local->rx_handlers_queued); + break; + } + break; + } + + switch (res) { + case RX_DROP_MONITOR: + case RX_DROP_UNUSABLE: + case RX_CONTINUE: + dev_kfree_skb(rx->skb); + break; + } +} + /* main receive path */ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, @@ -1756,8 +1756,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, rx.skb = skb_new; rx.dev = prev->dev; rx.sdata = prev; - ieee80211_invoke_rx_handlers(local, local->rx_handlers, - &rx, sta); + ieee80211_invoke_rx_handlers(local, &rx, sta); prev = sdata; } if (prev) { @@ -1765,8 +1764,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, rx.skb = skb; rx.dev = prev->dev; rx.sdata = prev; - ieee80211_invoke_rx_handlers(local, local->rx_handlers, - &rx, sta); + ieee80211_invoke_rx_handlers(local, &rx, sta); } else dev_kfree_skb(skb); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 0cba4a2..181d970 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -813,10 +813,9 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx) return TX_CONTINUE; } -/* TODO: implement register/unregister functions for adding TX/RX handlers - * into ordered list */ -ieee80211_tx_handler ieee80211_tx_handlers[] = +typedef ieee80211_tx_result (*ieee80211_tx_handler)(struct ieee80211_txrx_data *); +static ieee80211_tx_handler ieee80211_tx_handlers[] = { ieee80211_tx_h_check_assoc, ieee80211_tx_h_sequence, @@ -1158,7 +1157,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb, sta = tx.sta; tx.u.tx.channel = local->hw.conf.channel; - for (handler = local->tx_handlers; *handler != NULL; + for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) { res = (*handler)(&tx); if (res != TX_CONTINUE) @@ -1914,7 +1913,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED; tx.u.tx.channel = local->hw.conf.channel; - for (handler = local->tx_handlers; *handler != NULL; handler++) { + for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) { res = (*handler)(&tx); if (res == TX_DROP || res == TX_QUEUED) break; -- 2.7.4