[PATCH tip/core/rcu 11/47] mac80211: Convert call_rcu() to kfree_rcu(), drop mesh_gate_node_reclaim()

[Paul E. McKenney]

From: "Paul E. McKenney" <paul.mckenney@xxxxxxxxxx>

The call_rcu() in mesh_gate_del() invokes mesh_gate_node_reclaim(),
which simply calls kfree().  So convert the call_rcu() to kfree_rcu(),
allowing mesh_gate_node_reclaim() to be eliminated.

Signed-off-by: Paul E. McKenney <paul.mckenney@xxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: "John W. Linville" <linville@xxxxxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
---
 net/mac80211/mesh_pathtbl.c |    8 +-------
 1 files changed, 1 insertions(+), 7 deletions(-)

diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index edf167e..30420bc 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -413,12 +413,6 @@ struct mesh_path *mesh_path_lookup_by_idx(int idx, struct ieee80211_sub_if_data
 	return NULL;
 }
 
-static void mesh_gate_node_reclaim(struct rcu_head *rp)
-{
-	struct mpath_node *node = container_of(rp, struct mpath_node, rcu);
-	kfree(node);
-}
-
 /**
  * mesh_path_add_gate - add the given mpath to a mesh gate to our path table
  * @mpath: gate path to add to table
@@ -479,7 +473,7 @@ static int mesh_gate_del(struct mesh_table *tbl, struct mesh_path *mpath)
 		if (gate->mpath == mpath) {
 			spin_lock_bh(&tbl->gates_lock);
 			hlist_del_rcu(&gate->list);
-			call_rcu(&gate->rcu, mesh_gate_node_reclaim);
+			kfree_rcu(gate, rcu);
 			spin_unlock_bh(&tbl->gates_lock);
 			mpath->sdata->u.mesh.num_gates--;
 			mpath->is_gate = false;
-- 
1.7.8

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