net: reintroduce missing rcu_assign_pointer() calls

commit a9b3cd7f32 (rcu: convert uses of rcu_assign_pointer(x, NULL) to
RCU_INIT_POINTER) did a lot of incorrect changes, since it did a
complete conversion of rcu_assign_pointer(x, y) to RCU_INIT_POINTER(x,
y).

We miss needed barriers, even on x86, when y is not NULL.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 96debba2c407..1068f668ac4e 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -332,7 +332,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
         status = WLAN_STATUS_SUCCESS;
 
         /* activate it for RX */
-        RCU_INIT_POINTER(sta->ampdu_mlme.tid_rx[tid], tid_agg_rx);
+        rcu_assign_pointer(sta->ampdu_mlme.tid_rx[tid], tid_agg_rx);
 
         if (timeout)
                 mod_timer(&tid_agg_rx->session_timer, TU_TO_EXP_TIME(timeout));