Commit 8d59c4e9 authored by Helmut Schaa's avatar Helmut Schaa Committed by John W. Linville

rt2x00: Make periodic beacon updates for PCI devices atomic

Allow the beacondone and pretbtt functions to update the beacon from
atomic context by using the beacon update functions with caller locking.

This is a preparation for moving the periodic beacon handling into
tasklets that require atomic context.
Signed-off-by: default avatarHelmut Schaa <helmut.schaa@googlemail.com>
Acked-by: default avatarGertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 1dae8d34
......@@ -174,7 +174,13 @@ static void rt2x00lib_beaconupdate_iter(void *data, u8 *mac,
vif->type != NL80211_IFTYPE_WDS)
return;
rt2x00queue_update_beacon(rt2x00dev, vif);
/*
* Update the beacon without locking. This is safe on PCI devices
* as they only update the beacon periodically here. This should
* never be called for USB devices.
*/
WARN_ON(rt2x00_is_usb(rt2x00dev));
rt2x00queue_update_beacon_locked(rt2x00dev, vif);
}
void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
......@@ -183,9 +189,9 @@ void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
return;
/* send buffered bc/mc frames out for every bssid */
ieee80211_iterate_active_interfaces(rt2x00dev->hw,
rt2x00lib_bc_buffer_iter,
rt2x00dev);
ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
rt2x00lib_bc_buffer_iter,
rt2x00dev);
/*
* Devices with pre tbtt interrupt don't need to update the beacon
* here as they will fetch the next beacon directly prior to
......@@ -195,9 +201,9 @@ void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
return;
/* fetch next beacon */
ieee80211_iterate_active_interfaces(rt2x00dev->hw,
rt2x00lib_beaconupdate_iter,
rt2x00dev);
ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
rt2x00lib_beaconupdate_iter,
rt2x00dev);
}
EXPORT_SYMBOL_GPL(rt2x00lib_beacondone);
......@@ -207,9 +213,9 @@ void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev)
return;
/* fetch next beacon */
ieee80211_iterate_active_interfaces(rt2x00dev->hw,
rt2x00lib_beaconupdate_iter,
rt2x00dev);
ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
rt2x00lib_beaconupdate_iter,
rt2x00dev);
}
EXPORT_SYMBOL_GPL(rt2x00lib_pretbtt);
......
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