| Message ID | 20220226041831.2058437-1-imagedong@tencent.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | net: use kfree_skb_reason() for ip/neighbour | expand |
Hello: This series was applied to netdev/net-next.git (master) by David S. Miller <davem@davemloft.net>: On Sat, 26 Feb 2022 12:18:28 +0800 you wrote: > From: Menglong Dong <imagedong@tencent.com> > > In the series "net: use kfree_skb_reason() for ip/udp packet receive", > reasons for skb drops are added to the packet receive process of IP > layer. Link: > > https://lore.kernel.org/netdev/20220205074739.543606-1-imagedong@tencent.com/ > > [...] Here is the summary with links: - [net-next,v3,1/3] net: ip: add skb drop reasons for ip egress path https://git.kernel.org/netdev/net-next/c/5e187189ec32 - [net-next,v3,2/3] net: neigh: use kfree_skb_reason() for __neigh_event_send() https://git.kernel.org/netdev/net-next/c/a5736edda10c - [net-next,v3,3/3] net: neigh: add skb drop reasons to arp_error_report() https://git.kernel.org/netdev/net-next/c/56d4b4e48ace You are awesome, thank you!
From: Menglong Dong <imagedong@tencent.com> In the series "net: use kfree_skb_reason() for ip/udp packet receive", reasons for skb drops are added to the packet receive process of IP layer. Link: https://lore.kernel.org/netdev/20220205074739.543606-1-imagedong@tencent.com/ And in the first patch of this series, skb drop reasons are added to the packet egress path of IP layer. As kfree_skb() is not used frequent, I commit these changes at once and didn't create a patch for every functions that involed. Following functions are handled: __ip_queue_xmit() ip_finish_output() ip_mc_finish_output() ip6_output() ip6_finish_output() ip6_finish_output2() Following new drop reasons are introduced (what they mean can be seen in the document of them): SKB_DROP_REASON_IP_OUTNOROUTES SKB_DROP_REASON_BPF_CGROUP_EGRESS SKB_DROP_REASON_IPV6DISABLED SKB_DROP_REASON_NEIGH_CREATEFAIL In the 2th and 3th patches, kfree_skb_reason() is used in neighbour subsystem instead of kfree_skb(). __neigh_event_send() and arp_error_report() are involed, and following new drop reasons are introduced: SKB_DROP_REASON_NEIGH_FAILED SKB_DROP_REASON_NEIGH_QUEUEFULL SKB_DROP_REASON_NEIGH_DEAD Changes since v2: - fix typo in the 1th patch of 'SKB_DROP_REASON_IPV6DSIABLED' reported by Roman Changes since v1: - introduce SKB_DROP_REASON_NEIGH_CREATEFAIL for some path in the 1th patch - introduce SKB_DROP_REASON_NEIGH_DEAD in the 2th patch - simplify the document for the new drop reasons, as David Ahern suggested Menglong Dong (3): net: ip: add skb drop reasons for ip egress path net: neigh: use kfree_skb_reason() for __neigh_event_send() net: neigh: add skb drop reasons to arp_error_report() include/linux/skbuff.h | 14 ++++++++++++++ include/trace/events/skb.h | 7 +++++++ net/core/neighbour.c | 6 +++--- net/ipv4/arp.c | 2 +- net/ipv4/ip_output.c | 8 ++++---- net/ipv6/ip6_output.c | 6 +++--- 6 files changed, 32 insertions(+), 11 deletions(-)