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Date: Wed, 13 Apr 2022 16:15:54 +0800 From: menglong8.dong@...il.com To: dsahern@...nel.org Cc: rostedt@...dmis.org, mingo@...hat.com, davem@...emloft.net, yoshfuji@...ux-ipv6.org, kuba@...nel.org, pabeni@...hat.com, benbjiang@...cent.com, flyingpeng@...cent.com, imagedong@...cent.com, edumazet@...gle.com, kafai@...com, talalahmad@...gle.com, keescook@...omium.org, mengensun@...cent.com, dongli.zhang@...cle.com, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: [PATCH net-next 3/9] net: ipv6: add skb drop reasons to ip6_pkt_drop() From: Menglong Dong <imagedong@...cent.com> Replace kfree_skb() used in ip6_pkt_drop() with kfree_skb_reason(). No new reason is added. Signed-off-by: Menglong Dong <imagedong@...cent.com> Reviewed-by: Jiang Biao <benbjiang@...cent.com> Reviewed-by: Hao Peng <flyingpeng@...cent.com> --- net/ipv6/route.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 169e9df6d172..9471ab4421c8 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -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; } -- 2.35.1
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