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ath9k: Cleanup add/change_interface callbacks 

*Remove all the checks that will be handled by cfg80211
based on the interface combination advertised. For instance,
driver supports at the maximum 8 beaconing interface, while
we advertise maximum 8 beaconing interface in the interface
combination support.

*cfg80211 will take care of not allowing
us to add an interface that is not supported by the
driver, further if the change_interface changes the
old interface to a beaconing interface while we had
reached the max limit of 8 beaconing interface, again
cfg80211 takes care of this stuff!
So remove all these checks.

*Beautify placing PS wrappers in the appropriate
position.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mohammed Shafi Shajakhan 2012-09-04 19:33:36 +05:30 committed by John W. Linville
parent 1b29ce42e9
commit 327967cba4
1 changed files with 10 additions and 47 deletions
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57
drivers/net/wireless/ath/ath9k/main.c
View File

@ -986,47 +986,21 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
int ret = 0;
ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
switch (vif->type) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_MESH_POINT:
break;
default:
ath_err(common, "Interface type %d not yet supported\n",
vif->type);
ret = -EOPNOTSUPP;
goto out;
}
if (ath9k_uses_beacons(vif->type)) {
if (sc->nbcnvifs >= ATH_BCBUF) {
ath_err(common, "Not enough beacon buffers when adding"
" new interface of type: %i\n",
vif->type);
ret = -ENOBUFS;
goto out;
}
}
ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
sc->nvifs++;
ath9k_ps_wakeup(sc);
ath9k_calculate_summary_state(hw, vif);
ath9k_ps_restore(sc);
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_assign_slot(sc, vif);
out:
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
return ret;
return 0;
}
static int ath9k_change_interface(struct ieee80211_hw *hw,
@ -1036,21 +1010,9 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
{
struct ath_softc *sc = hw->priv;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
int ret = 0;
ath_dbg(common, CONFIG, "Change Interface\n");
mutex_lock(&sc->mutex);
ath9k_ps_wakeup(sc);
if (ath9k_uses_beacons(new_type) &&
!ath9k_uses_beacons(vif->type)) {
if (sc->nbcnvifs >= ATH_BCBUF) {
ath_err(common, "No beacon slot available\n");
ret = -ENOBUFS;
goto out;
}
}
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_remove_slot(sc, vif);
@ -1058,14 +1020,15 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
vif->type = new_type;
vif->p2p = p2p;
ath9k_ps_wakeup(sc);
ath9k_calculate_summary_state(hw, vif);
ath9k_ps_restore(sc);
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_assign_slot(sc, vif);
out:
ath9k_ps_restore(sc);
mutex_unlock(&sc->mutex);
return ret;
return 0;
}
static void ath9k_remove_interface(struct ieee80211_hw *hw,
@ -1076,7 +1039,6 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
ath_dbg(common, CONFIG, "Detach Interface\n");
ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
sc->nvifs--;
@ -1084,10 +1046,11 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_remove_slot(sc, vif);
ath9k_ps_wakeup(sc);
ath9k_calculate_summary_state(hw, NULL);
ath9k_ps_restore(sc);
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
}
static void ath9k_enable_ps(struct ath_softc *sc)