netfilter: ipset: move ip_set_comment functions from ip_set.h to ip_set_core.c.

Most of the functions are only called from within ip_set_core.c.

The exception is ip_set_init_comment.  However, this is too complex to
be a good candidate for a static inline function.  Move it to
ip_set_core.c, change its linkage to extern and export it, leaving a
declaration in ip_set.h.

ip_set_comment_free is only used as an extension destructor, so change
its prototype to match and drop cast.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Acked-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 2 insertions, 61 deletions

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 9fee4837d02c..985c9bb1ab65 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -521,67 +521,8 @@ ip_set_timeout_get(const unsigned long *timeout)
 	return t == 0 ? 1 : t;
 }
 
-static inline char*
-ip_set_comment_uget(struct nlattr *tb)
-{
-	return nla_data(tb);
-}
-
-/* Called from uadd only, protected by the set spinlock.
- * The kadt functions don't use the comment extensions in any way.
- */
-static inline void
-ip_set_init_comment(struct ip_set *set, struct ip_set_comment *comment,
-		    const struct ip_set_ext *ext)
-{
-	struct ip_set_comment_rcu *c = rcu_dereference_protected(comment->c, 1);
-	size_t len = ext->comment ? strlen(ext->comment) : 0;
-
-	if (unlikely(c)) {
-		set->ext_size -= sizeof(*c) + strlen(c->str) + 1;
-		kfree_rcu(c, rcu);
-		rcu_assign_pointer(comment->c, NULL);
-	}
-	if (!len)
-		return;
-	if (unlikely(len > IPSET_MAX_COMMENT_SIZE))
-		len = IPSET_MAX_COMMENT_SIZE;
-	c = kmalloc(sizeof(*c) + len + 1, GFP_ATOMIC);
-	if (unlikely(!c))
-		return;
-	strlcpy(c->str, ext->comment, len + 1);
-	set->ext_size += sizeof(*c) + strlen(c->str) + 1;
-	rcu_assign_pointer(comment->c, c);
-}
-
-/* Used only when dumping a set, protected by rcu_read_lock() */
-static inline int
-ip_set_put_comment(struct sk_buff *skb, const struct ip_set_comment *comment)
-{
-	struct ip_set_comment_rcu *c = rcu_dereference(comment->c);
-
-	if (!c)
-		return 0;
-	return nla_put_string(skb, IPSET_ATTR_COMMENT, c->str);
-}
-
-/* Called from uadd/udel, flush or the garbage collectors protected
- * by the set spinlock.
- * Called when the set is destroyed and when there can't be any user
- * of the set data anymore.
- */
-static inline void
-ip_set_comment_free(struct ip_set *set, struct ip_set_comment *comment)
-{
-	struct ip_set_comment_rcu *c;
-
-	c = rcu_dereference_protected(comment->c, 1);
-	if (unlikely(!c))
-		return;
-	set->ext_size -= sizeof(*c) + strlen(c->str) + 1;
-	kfree_rcu(c, rcu);
-	rcu_assign_pointer(comment->c, NULL);
-}
+void ip_set_init_comment(struct ip_set *set, struct ip_set_comment *comment,
+			 const struct ip_set_ext *ext);
 
 static inline void
 ip_set_add_bytes(u64 bytes, struct ip_set_counter *counter)