From a9b3cd7f323b2e57593e7215362a7b02fc933e3a Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 1 Aug 2011 16:19:00 +0000 Subject: rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // Signed-off-by: Stephen Hemminger Acked-by: Paul E. McKenney Signed-off-by: David S. Miller --- net/mac80211/iface.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/mac80211/iface.c') diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 556e7e6ddf0a..c798b434eb64 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -456,7 +456,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, BSS_CHANGED_BEACON_ENABLED); /* remove beacon */ - rcu_assign_pointer(sdata->u.ap.beacon, NULL); + RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); synchronize_rcu(); kfree(old_beacon); -- cgit v1.2.3