diff options
author | David S. Miller <davem@davemloft.net> | 2022-02-26 15:53:59 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2022-02-26 15:53:59 +0300 |
commit | 4aaa489538afd75ba638b5d848693e547dc40320 (patch) | |
tree | a361b481994e7ec96d210132f6c59d25ca70dbcc /drivers/net/dsa | |
parent | 0cc70c6eecf14c37cb6d8eb3f625ab359e6be323 (diff) | |
parent | 56d4b4e48ace91ee4e41991438e0e11688750617 (diff) | |
download | linux-4aaa489538afd75ba638b5d848693e547dc40320.tar.xz |
Merge branch 'ip-neigh-skb-reason'
Menglong Dong says:
====================
net: use kfree_skb_reason() for ip/neighbour
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
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
0 files changed, 0 insertions, 0 deletions