diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/dst.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 2e6e3a14a21a..dc1f26da3c61 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -470,7 +470,15 @@ static inline struct neighbour *dst_neigh_lookup(const struct dst_entry *dst, co static inline struct neighbour *dst_neigh_lookup_skb(const struct dst_entry *dst, struct sk_buff *skb) { - struct neighbour *n = dst->ops->neigh_lookup(dst, skb, NULL); + struct neighbour *n = NULL; + + /* The packets from tunnel devices (eg bareudp) may have only + * metadata in the dst pointer of skb. Hence a pointer check of + * neigh_lookup is needed. + */ + if (dst->ops->neigh_lookup) + n = dst->ops->neigh_lookup(dst, skb, NULL); + return IS_ERR(n) ? NULL : n; } |