Commit 4a27096b authored by Jesper Dangaard Brouer's avatar Jesper Dangaard Brouer Committed by David S. Miller

mac80211: Use rcu_barrier() on unload.

The mac80211 module uses rcu_call() thus it should use rcu_barrier()
on module unload.

The rcu_barrier() is placed in mech.c ieee80211_stop_mesh() which is
invoked from ieee80211_stop() in case vif.type == NL80211_IFTYPE_MESH_POINT.
Acked-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 75de874f
...@@ -494,7 +494,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata) ...@@ -494,7 +494,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
* should it be using the interface and enqueuing * should it be using the interface and enqueuing
* frames at this very time on another CPU. * frames at this very time on another CPU.
*/ */
synchronize_rcu(); rcu_barrier(); /* Wait for RX path and call_rcu()'s */
skb_queue_purge(&sdata->u.mesh.skb_queue); skb_queue_purge(&sdata->u.mesh.skb_queue);
} }
......
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