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-rw-r--r--include/net/ip.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index 8cbe7e8c9e1e..8fdd58ce580d 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -422,6 +422,12 @@ static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
struct dst_metrics *ip_fib_metrics_init(struct net *net, struct nlattr *fc_mx,
int fc_mx_len);
+static inline void ip_fib_metrics_put(struct dst_metrics *fib_metrics)
+{
+ if (fib_metrics != &dst_default_metrics &&
+ refcount_dec_and_test(&fib_metrics->refcnt))
+ kfree(fib_metrics);
+}
u32 ip_idents_reserve(u32 hash, int segs);
void __ip_select_ident(struct net *net, struct iphdr *iph, int segs);