Commit 3ae42cc8 authored by Menglong Dong's avatar Menglong Dong Committed by David S. Miller
Browse files

net: ipv6: add skb drop reasons to ip6_pkt_drop() 



Replace kfree_skb() used in ip6_pkt_drop() with kfree_skb_reason().
No new reason is added.

Signed-off-by: default avatarMenglong Dong <imagedong@tencent.com>
Reviewed-by: default avatarJiang Biao <benbjiang@tencent.com>
Reviewed-by: default avatarHao Peng <flyingpeng@tencent.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c4eb6641

net/ipv6/route.c

+5 −1
Original line number Diff line number Diff line
@@ -4482,6 +4482,7 @@ static int ip6_pkt_drop(struct sk_buff *skb, u8 code, int ipstats_mib_noroutes) 
	struct dst_entry *dst = skb_dst(skb);

	struct net *net = dev_net(dst->dev);

	struct inet6_dev *idev;

	SKB_DR(reason);

	int type;



	if (netif_is_l3_master(skb->dev) ||
@@ -4494,11 +4495,14 @@ static int ip6_pkt_drop(struct sk_buff *skb, u8 code, int ipstats_mib_noroutes) 
	case IPSTATS_MIB_INNOROUTES:

		type = ipv6_addr_type(&ipv6_hdr(skb)->daddr);

		if (type == IPV6_ADDR_ANY) {

			SKB_DR_SET(reason, IP_INADDRERRORS);

			IP6_INC_STATS(net, idev, IPSTATS_MIB_INADDRERRORS);

			break;

		}

		SKB_DR_SET(reason, IP_INNOROUTES);

		fallthrough;

	case IPSTATS_MIB_OUTNOROUTES:

		SKB_DR_OR(reason, IP_OUTNOROUTES);

		IP6_INC_STATS(net, idev, ipstats_mib_noroutes);

		break;

	}
@@ -4508,7 +4512,7 @@ static int ip6_pkt_drop(struct sk_buff *skb, u8 code, int ipstats_mib_noroutes) 
		skb_dst_drop(skb);



	icmpv6_send(skb, ICMPV6_DEST_UNREACH, code, 0);

	kfree_skb(skb);

	kfree_skb_reason(skb, reason);

	return 0;

}