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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 <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-01-31 19:48:25 +01:00 committed by John W. Linville
parent 2c9745e568
commit 589052904a
4 changed files with 43 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/mac80211/ieee80211.c
View File

@ -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;

13
net/mac80211/ieee80211_i.h
View File

@ -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);

80
net/mac80211/rx.c
View File

@ -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);

9
net/mac80211/tx.c
View File

@ -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;