1 files changed, 8 insertions, 20 deletions

diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 4d755444c449..246f9065ce34 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -75,7 +75,6 @@ struct tc_u_hnode
 
 struct tc_u_common
 {
-	struct tc_u_common	*next;
 	struct tc_u_hnode	*hlist;
 	struct Qdisc		*q;
 	int			refcnt;
@@ -87,8 +86,6 @@ static const struct tcf_ext_map u32_ext_map = {
 	.police = TCA_U32_POLICE
 };
 
-static struct tc_u_common *u32_list;
-
 static __inline__ unsigned u32_hash_fold(__be32 key, struct tc_u32_sel *sel, u8 fshift)
 {
 	unsigned h = ntohl(key & sel->hmask)>>fshift;
@@ -287,9 +284,7 @@ static int u32_init(struct tcf_proto *tp)
 	struct tc_u_hnode *root_ht;
 	struct tc_u_common *tp_c;
 
-	for (tp_c = u32_list; tp_c; tp_c = tp_c->next)
-		if (tp_c->q == tp->q)
-			break;
+	tp_c = tp->q->u32_node;
 
 	root_ht = kzalloc(sizeof(*root_ht), GFP_KERNEL);
 	if (root_ht == NULL)
@@ -307,8 +302,7 @@ static int u32_init(struct tcf_proto *tp)
 			return -ENOBUFS;
 		}
 		tp_c->q = tp->q;
-		tp_c->next = u32_list;
-		u32_list = tp_c;
+		tp->q->u32_node = tp_c;
 	}
 
 	tp_c->refcnt++;
@@ -351,7 +345,7 @@ static int u32_delete_key(struct tcf_proto *tp, struct tc_u_knode* key)
 			}
 		}
 	}
-	BUG_TRAP(0);
+	WARN_ON(1);
 	return 0;
 }
 
@@ -374,7 +368,7 @@ static int u32_destroy_hnode(struct tcf_proto *tp, struct tc_u_hnode *ht)
 	struct tc_u_common *tp_c = tp->data;
 	struct tc_u_hnode **hn;
 
-	BUG_TRAP(!ht->refcnt);
+	WARN_ON(ht->refcnt);
 
 	u32_clear_hnode(tp, ht);
 
@@ -386,7 +380,7 @@ static int u32_destroy_hnode(struct tcf_proto *tp, struct tc_u_hnode *ht)
 		}
 	}
 
-	BUG_TRAP(0);
+	WARN_ON(1);
 	return -ENOENT;
 }
 
@@ -395,21 +389,15 @@ static void u32_destroy(struct tcf_proto *tp)
 	struct tc_u_common *tp_c = tp->data;
 	struct tc_u_hnode *root_ht = xchg(&tp->root, NULL);
 
-	BUG_TRAP(root_ht != NULL);
+	WARN_ON(root_ht == NULL);
 
 	if (root_ht && --root_ht->refcnt == 0)
 		u32_destroy_hnode(tp, root_ht);
 
 	if (--tp_c->refcnt == 0) {
 		struct tc_u_hnode *ht;
-		struct tc_u_common **tp_cp;
 
-		for (tp_cp = &u32_list; *tp_cp; tp_cp = &(*tp_cp)->next) {
-			if (*tp_cp == tp_c) {
-				*tp_cp = tp_c->next;
-				break;
-			}
-		}
+		tp->q->u32_node = NULL;
 
 		for (ht = tp_c->hlist; ht; ht = ht->next) {
 			ht->refcnt--;
@@ -419,7 +407,7 @@ static void u32_destroy(struct tcf_proto *tp)
 		while ((ht = tp_c->hlist) != NULL) {
 			tp_c->hlist = ht->next;
 
-			BUG_TRAP(ht->refcnt == 0);
+			WARN_ON(ht->refcnt != 0);
 
 			kfree(ht);
 		}