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authorJohannes Berg <johannes.berg@intel.com>2011-07-19 12:39:53 +0400
committerJohn W. Linville <linville@tuxdriver.com>2011-07-20 23:04:35 +0400
commitb2abb6e2bcb91ae384c5857dffd0bb97b76c7a68 (patch)
tree4f6381c0a7b4dc8a1f9cd3c3bf2b94a6c971c737 /net/mac80211/mlme.c
parente0d687bd9df218ba3d97aac15919d30816d72dcb (diff)
downloadlinux-b2abb6e2bcb91ae384c5857dffd0bb97b76c7a68.tar.xz
mac80211: sync driver before TX
In P2P client mode, the GO (AP) to connect to might have periods of time where it is not available due to powersave. To allow the driver to sync with it and send frames to the GO only when it is available add a new callback tx_sync (and the corresponding finish_tx_sync). These callbacks can sleep unlike the actual TX. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r--net/mac80211/mlme.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index fee706d39fc2..d6470c7fd6ce 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2335,14 +2335,16 @@ static enum work_done_result
ieee80211_probe_auth_done(struct ieee80211_work *wk,
struct sk_buff *skb)
{
+ struct ieee80211_local *local = wk->sdata->local;
+
if (!skb) {
cfg80211_send_auth_timeout(wk->sdata->dev, wk->filter_ta);
- return WORK_DONE_DESTROY;
+ goto destroy;
}
if (wk->type == IEEE80211_WORK_AUTH) {
cfg80211_send_rx_auth(wk->sdata->dev, skb->data, skb->len);
- return WORK_DONE_DESTROY;
+ goto destroy;
}
mutex_lock(&wk->sdata->u.mgd.mtx);
@@ -2352,6 +2354,12 @@ ieee80211_probe_auth_done(struct ieee80211_work *wk,
wk->type = IEEE80211_WORK_AUTH;
wk->probe_auth.tries = 0;
return WORK_DONE_REQUEUE;
+ destroy:
+ if (wk->probe_auth.synced)
+ drv_finish_tx_sync(local, wk->sdata, wk->filter_ta,
+ IEEE80211_TX_SYNC_AUTH);
+
+ return WORK_DONE_DESTROY;
}
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
@@ -2424,6 +2432,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
static enum work_done_result ieee80211_assoc_done(struct ieee80211_work *wk,
struct sk_buff *skb)
{
+ struct ieee80211_local *local = wk->sdata->local;
struct ieee80211_mgmt *mgmt;
struct ieee80211_rx_status *rx_status;
struct ieee802_11_elems elems;
@@ -2431,7 +2440,7 @@ static enum work_done_result ieee80211_assoc_done(struct ieee80211_work *wk,
if (!skb) {
cfg80211_send_assoc_timeout(wk->sdata->dev, wk->filter_ta);
- return WORK_DONE_DESTROY;
+ goto destroy;
}
if (wk->type == IEEE80211_WORK_ASSOC_BEACON_WAIT) {
@@ -2451,6 +2460,10 @@ static enum work_done_result ieee80211_assoc_done(struct ieee80211_work *wk,
status = le16_to_cpu(mgmt->u.assoc_resp.status_code);
if (status == WLAN_STATUS_SUCCESS) {
+ if (wk->assoc.synced)
+ drv_finish_tx_sync(local, wk->sdata, wk->filter_ta,
+ IEEE80211_TX_SYNC_ASSOC);
+
mutex_lock(&wk->sdata->u.mgd.mtx);
if (!ieee80211_assoc_success(wk, mgmt, skb->len)) {
mutex_unlock(&wk->sdata->u.mgd.mtx);
@@ -2464,6 +2477,11 @@ static enum work_done_result ieee80211_assoc_done(struct ieee80211_work *wk,
}
cfg80211_send_rx_assoc(wk->sdata->dev, skb->data, skb->len);
+ destroy:
+ if (wk->assoc.synced)
+ drv_finish_tx_sync(local, wk->sdata, wk->filter_ta,
+ IEEE80211_TX_SYNC_ASSOC);
+
return WORK_DONE_DESTROY;
}