docs/bpf: update out-of-date doc in BPF flow dissector

Commit a5e2151ff9d5 ("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in __skb_get_hash_symmetric(), making the doc out-of-date.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>

diff --git a/Documentation/bpf/prog_flow_dissector.rst b/Documentation/bpf/prog_flow_dissector.rst
index 4d86780ab0f1578a5ef5fc0c4e68520defefb634..f24270b8b0343c8ef2e8c4eb24788ec87443feb7 100644 (file)
--- a/Documentation/bpf/prog_flow_dissector.rst
+++ b/Documentation/bpf/prog_flow_dissector.rst
@@ -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.