net: document inet[6]_lookup_reuseport sk_state requirements

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The current implementation was extracted from inet[6]_lhash2_lookup
in commit 80b373f74f ("inet: Extract helper for selecting socket
from reuseport group") and commit 5df6531292 ("inet6: Extract helper
for selecting socket from reuseport group"). In the original context,
sk is always in TCP_LISTEN state and so did not have a separate check.

Add documentation that specifies which sk_state are valid to pass to
the function.

Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Lorenz Bauer <lmb@isovalent.com>
Link: https://lore.kernel.org/r/20230720-so-reuseport-v6-5-7021b683cdae@isovalent.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

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This commit is contained in:

Lorenz Bauer 2023-07-20 17:30:09 +02:00 • committed by Martin KaFai Lau

parent 0f495f7617

commit 2a61776366

2 changed files with 30 additions and 0 deletions

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15

net/ipv4/inet_hashtables.c

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15

net/ipv6/inet6_hashtables.c

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