ipv6: anycast: Don't hold RTNL for IPV6_LEAVE_ANYCAST and IPV6_ADDRFORM.

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inet6_sk(sk)->ipv6_ac_list is protected by lock_sock().

In ipv6_sock_ac_drop() and ipv6_sock_ac_close(),
only __dev_get_by_index() and __in6_dev_get() requrie RTNL.

Let's replace them with dev_get_by_index() and in6_dev_get()
and drop RTNL from IPV6_LEAVE_ANYCAST and IPV6_ADDRFORM.

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250702230210.3115355-13-kuni1840@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Kuniyuki Iwashima 2025-07-02 16:01:29 -07:00 • committed by Jakub Kicinski

parent 7b6b53a76f

commit f7fdf13bf1

2 changed files with 20 additions and 18 deletions

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36

net/ipv6/anycast.c

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2

net/ipv6/ipv6_sockglue.c

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