Commit 558c50cc authored by Quan Tian's avatar Quan Tian Committed by Martin KaFai Lau
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docs/bpf: update out-of-date doc in BPF flow dissector 



Commit a5e2151f ("net/ipv6: SKB symmetric hash should incorporate
transport ports") removed the use of FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL
in __skb_get_hash_symmetric(), making the doc out-of-date.

Signed-off-by: default avatarQuan Tian <qtian@vmware.com>
Link: https://lore.kernel.org/r/20230911152353.8280-1-qtian@vmware.com


Signed-off-by: default avatarMartin KaFai Lau <martin.lau@kernel.org>
parent 5bbb9e1f

Documentation/bpf/prog_flow_dissector.rst

+1 −1
Original line number Diff line number Diff line
@@ -113,7 +113,7 @@ Flags 
  used by ``eth_get_headlen`` to estimate length of all headers for GRO.

* ``BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL`` - tells BPF flow dissector to

  stop parsing as soon as it reaches IPv6 flow label; used by

  ``___skb_get_hash`` and ``__skb_get_hash_symmetric`` to get flow hash.

  ``___skb_get_hash`` to get flow hash.

* ``BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP`` - tells BPF flow dissector to stop

  parsing as soon as it reaches encapsulated headers; used by routing

  infrastructure.