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/caif/cfmuxl.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/caif/cfmuxl.c') diff --git a/net/caif/cfmuxl.c b/net/caif/cfmuxl.c index c23979e79dfa..b36f24a4c8e7 100644 --- a/net/caif/cfmuxl.c +++ b/net/caif/cfmuxl.c @@ -108,7 +108,7 @@ struct cflayer *cfmuxl_remove_dnlayer(struct cflayer *layr, u8 phyid) int idx = phyid % DN_CACHE_SIZE; spin_lock_bh(&muxl->transmit_lock); - rcu_assign_pointer(muxl->dn_cache[idx], NULL); + RCU_INIT_POINTER(muxl->dn_cache[idx], NULL); dn = get_from_id(&muxl->frml_list, phyid); if (dn == NULL) goto out; @@ -164,7 +164,7 @@ struct cflayer *cfmuxl_remove_uplayer(struct cflayer *layr, u8 id) if (up == NULL) goto out; - rcu_assign_pointer(muxl->up_cache[idx], NULL); + RCU_INIT_POINTER(muxl->up_cache[idx], NULL); list_del_rcu(&up->node); out: spin_unlock_bh(&muxl->receive_lock); @@ -261,7 +261,7 @@ static void cfmuxl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl, idx = layer->id % UP_CACHE_SIZE; spin_lock_bh(&muxl->receive_lock); - rcu_assign_pointer(muxl->up_cache[idx], NULL); + RCU_INIT_POINTER(muxl->up_cache[idx], NULL); list_del_rcu(&layer->node); spin_unlock_bh(&muxl->receive_lock); } -- cgit v1.2.3