On 10/15/24 16:07, Menglong Dong wrote: > @@ -2316,19 +2327,25 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr, > err = -EHOSTUNREACH; > goto no_route; > } > - if (res->type != RTN_UNICAST) > + if (res->type != RTN_UNICAST) { > + reason = SKB_DROP_REASON_IP_INVALID_DEST; > goto martian_destination; > + } > > make_route: > err = ip_mkroute_input(skb, res, in_dev, daddr, saddr, dscp, flkeys); > -out: return err; > + if (!err) > + reason = SKB_NOT_DROPPED_YET; > + > +out: return reason; Since you are touching this line, please rewrite the code with a more natural indentation: out: return reason; Thanks, Paolo