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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: Menglong Dong <imagedong@tencent.com>
Reviewed-by: Jiang Biao <benbjiang@tencent.com>
Reviewed-by: Hao Peng <flyingpeng@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Menglong Dong 2022-04-13 16:15:54 +08:00 committed by David S. Miller
parent c4eb664191
commit 3ae42cc809
1 changed files with 5 additions and 1 deletions
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6
net/ipv6/route.c
View File

@ -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;
}