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mac80211: clarify interface iteration and make it configurable

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During hardware restart, all interfaces are iterated even
though they haven't been re-added to the driver, document
this behaviour. The same also happens during resume, which
is even more confusing since all of the interfaces were
previously removed from the driver. Make this optional so
drivers relying on the current behaviour can still use it,
but to let drivers that don't want this behaviour disable
it.

Also convert all API users, keeping the old semantics
except in hwsim, where the new normal ones are desired.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-11-06 20:23:30 +01:00
parent 9214ad7f9a
commit 8b2c98243e
11 changed files with 90 additions and 45 deletions
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15
drivers/net/wireless/ath/ath9k/main.c
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@@ -924,8 +924,9 @@ void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
ath9k_vif_iter(iter_data, vif->addr, vif);
/* Get list of all active MAC addresses */
ieee80211_iterate_active_interfaces_atomic(sc->hw, ath9k_vif_iter,
iter_data);
ieee80211_iterate_active_interfaces_atomic(
sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
ath9k_vif_iter, iter_data);
}
/* Called with sc->mutex held. */
@@ -975,8 +976,9 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
if (ah->opmode == NL80211_IFTYPE_STATION &&
old_opmode == NL80211_IFTYPE_AP &&
test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
ieee80211_iterate_active_interfaces_atomic(sc->hw,
ath9k_sta_vif_iter, sc);
ieee80211_iterate_active_interfaces_atomic(
sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
ath9k_sta_vif_iter, sc);
}
}
@@ -1505,8 +1507,9 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
clear_bit(SC_OP_BEACONS, &sc->sc_flags);
}
ieee80211_iterate_active_interfaces_atomic(sc->hw,
ath9k_bss_assoc_iter, sc);
ieee80211_iterate_active_interfaces_atomic(
sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
ath9k_bss_assoc_iter, sc);
if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
ah->opmode == NL80211_IFTYPE_STATION) {