diff options
Diffstat (limited to 'net/sched/cls_api.c')
| -rw-r--r-- | net/sched/cls_api.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 028c980ef87d..6b085cf27a65 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -31,8 +31,7 @@ #include <net/pkt_cls.h> /* The list of all installed classifier types */ - -static struct tcf_proto_ops *tcf_proto_base __read_mostly; +static LIST_HEAD(tcf_proto_base); /* Protects list of registered TC modules. It is pure SMP lock. */ static DEFINE_RWLOCK(cls_mod_lock); @@ -45,7 +44,7 @@ static const struct tcf_proto_ops *tcf_proto_lookup_ops(struct nlattr *kind) if (kind) { read_lock(&cls_mod_lock); - for (t = tcf_proto_base; t; t = t->next) { + list_for_each_entry(t, &tcf_proto_base, head) { if (nla_strcmp(kind, t->kind) == 0) { if (!try_module_get(t->owner)) t = NULL; @@ -61,16 +60,15 @@ static const struct tcf_proto_ops *tcf_proto_lookup_ops(struct nlattr *kind) int register_tcf_proto_ops(struct tcf_proto_ops *ops) { - struct tcf_proto_ops *t, **tp; + struct tcf_proto_ops *t; int rc = -EEXIST; write_lock(&cls_mod_lock); - for (tp = &tcf_proto_base; (t = *tp) != NULL; tp = &t->next) + list_for_each_entry(t, &tcf_proto_base, head) if (!strcmp(ops->kind, t->kind)) goto out; - ops->next = NULL; - *tp = ops; + list_add_tail(&ops->head, &tcf_proto_base); rc = 0; out: write_unlock(&cls_mod_lock); @@ -80,17 +78,17 @@ EXPORT_SYMBOL(register_tcf_proto_ops); int unregister_tcf_proto_ops(struct tcf_proto_ops *ops) { - struct tcf_proto_ops *t, **tp; + struct tcf_proto_ops *t; int rc = -ENOENT; write_lock(&cls_mod_lock); - for (tp = &tcf_proto_base; (t = *tp) != NULL; tp = &t->next) + list_for_each_entry(t, &tcf_proto_base, head) if (t == ops) break; if (!t) goto out; - *tp = t->next; + list_del(&t->head); rc = 0; out: write_unlock(&cls_mod_lock); |