docs/bpf: update out-of-date doc in BPF flow dissector

Commit a5e2151ff9 ("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in __skb_get_hash_symmetric(), making the doc out-of-date.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: Quan Tian <qtian@vmware.com>
Link: https://lore.kernel.org/r/20230911152353.8280-1-qtian@vmware.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Quan Tian 2023-09-11 15:23:53 +00:00 committed by Martin KaFai Lau
parent 5bbb9e1f08
commit 558c50cc3b

View File

@ -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.