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authorJohannes Berg <johannes.berg@intel.com>2011-09-29 16:04:27 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-09-30 21:57:10 +0200
commitc868cb35d013896ab6a80a554fb88baef06cedcd (patch)
tree48ed06dcf3c815e61f38f867e517d5a5dcfa6d79 /net/mac80211/tx.c
parentmac80211: let drivers inform it about per TID buffered frames (diff)
downloadlinux-c868cb35d013896ab6a80a554fb88baef06cedcd.tar.xz
linux-c868cb35d013896ab6a80a554fb88baef06cedcd.zip
mac80211: unify TIM bit handling
Currently, the TIM bit for a given station is set and cleared all over the place. Since the logic to set/clear it will become much more complex when we add uAPSD support, as a first step let's collect the entire logic in one place. This requires a few small adjustments to other places. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 0ca16880bbb4..d6754908ff79 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -469,15 +469,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
} else
tx->local->total_ps_buffered++;
- /*
- * Queue frame to be sent after STA wakes up/polls,
- * but don't set the TIM bit if the driver is blocking
- * wakeup or poll response transmissions anyway.
- */
- if (skb_queue_empty(&sta->ps_tx_buf) &&
- !(staflags & WLAN_STA_PS_DRIVER))
- sta_info_set_tim_bit(sta);
-
info->control.jiffies = jiffies;
info->control.vif = &tx->sdata->vif;
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
@@ -488,6 +479,12 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
round_jiffies(jiffies +
STA_INFO_CLEANUP_INTERVAL));
+ /*
+ * We queued up some frames, so the TIM bit might
+ * need to be set, recalculate it.
+ */
+ sta_info_recalc_tim(sta);
+
return TX_QUEUED;
}
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG