diff options
| author | Kuniyuki Iwashima <kuniyu@google.com> | 2025-07-02 16:01:24 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-08 18:32:38 -0700 |
| commit | 2ceb71ce7d34e751f91bbca9da3513a2bc29089c (patch) | |
| tree | d55ddad900362dce1f58f9aaad202e4f29ffb59e /net/ipv6/ipv6_sockglue.c | |
| parent | 1767bb2d47b715a106287a8f963d9ec6cbab4e69 (diff) | |
ipv6: mcast: Don't hold RTNL for IPV6_DROP_MEMBERSHIP and MCAST_LEAVE_GROUP.
In __ipv6_sock_mc_drop(), per-socket mld data is protected by lock_sock(),
and only __dev_get_by_index() and __in6_dev_get() require RTNL.
Let's use dev_get_by_index() and in6_dev_get() and drop RTNL for
IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP.
Note that __ipv6_sock_mc_drop() is factorised to reuse in the next patch.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250702230210.3115355-8-kuni1840@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index cb0dc885cbe4..c8892d54821f 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -121,10 +121,8 @@ static bool setsockopt_needs_rtnl(int optname) { switch (optname) { case IPV6_ADDRFORM: - case IPV6_DROP_MEMBERSHIP: case IPV6_JOIN_ANYCAST: case IPV6_LEAVE_ANYCAST: - case MCAST_LEAVE_GROUP: case MCAST_JOIN_SOURCE_GROUP: case MCAST_LEAVE_SOURCE_GROUP: case MCAST_BLOCK_SOURCE: |