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mac80211: convert sta_info.pspoll to a flag

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This doesn't really need to be a full int variable since it's
just a flag to indicate a PS-poll is in progress.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-02-19 11:31:14 +01:00 committed by John W. Linville
parent d007b7f42e
commit 4a9a66e9a8
3 changed files with 12 additions and 9 deletions
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13
net/mac80211/rx.c
View file

@ -579,7 +579,7 @@ static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
if (sdata->bss)
atomic_inc(&sdata->bss->num_sta_ps);
sta->flags |= WLAN_STA_PS;
sta->pspoll = 0;
sta->flags &= ~WLAN_STA_PSPOLL;
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n",
dev->name, print_mac(mac, sta->addr), sta->aid);
@ -598,8 +598,7 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
if (sdata->bss)
atomic_dec(&sdata->bss->num_sta_ps);
sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM);
sta->pspoll = 0;
sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM | WLAN_STA_PSPOLL);
if (!skb_queue_empty(&sta->ps_tx_buf)) {
if (local->ops->set_tim)
local->ops->set_tim(local_to_hw(local), sta->aid, 0);
@ -925,9 +924,11 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *) skb->data;
/* tell TX path to send one frame even though the STA may
* still remain is PS mode after this frame exchange */
rx->sta->pspoll = 1;
/*
* Tell TX path to send one frame even though the STA may
* still remain is PS mode after this frame exchange.
*/
rx->sta->flags |= WLAN_STA_PSPOLL;
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "STA %s aid %d: PS Poll (entries after %d)\n",

3
net/mac80211/sta_info.h
View file

@ -32,6 +32,7 @@
* @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
* @WLAN_STA_WME: Station is a QoS-STA.
* @WLAN_STA_WDS: Station is one of our WDS peers.
* @WLAN_STA_PSPOLL: Station has just PS-polled us.
*/
enum ieee80211_sta_info_flags {
WLAN_STA_AUTH = 1<<0,
@ -43,6 +44,7 @@ enum ieee80211_sta_info_flags {
WLAN_STA_ASSOC_AP = 1<<6,
WLAN_STA_WME = 1<<7,
WLAN_STA_WDS = 1<<8,
WLAN_STA_PSPOLL = 1<<9,
};
#define STA_TID_NUM 16
@ -133,7 +135,6 @@ struct sta_info {
struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
* power saving state */
int pspoll; /* whether STA has send a PS Poll frame */
struct sk_buff_head tx_filtered; /* buffer of TX frames that were
* already given to low-level driver,
* but were filtered */

5
net/mac80211/tx.c
View file

@ -395,7 +395,8 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
(tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
return TX_CONTINUE;
if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
if (unlikely((sta->flags & WLAN_STA_PS) &&
!(sta->flags & WLAN_STA_PSPOLL))) {
struct ieee80211_tx_packet_data *pkt_data;
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries "
@ -436,7 +437,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
print_mac(mac, sta->addr));
}
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
sta->pspoll = 0;
sta->flags &= ~WLAN_STA_PSPOLL;
return TX_CONTINUE;
}