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ipv6: mcast: Remove unnecessary ASSERT_RTNL and comment.

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Now, RTNL is not needed for mcast code, and what's commented in
ip6_mc_msfget() is apparent by for_each_pmc_socklock(), which has
lockdep annotation for lock_sock().

Let's remove the comment and ASSERT_RTNL() in ipv6_mc_rejoin_groups().

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250702230210.3115355-11-kuni1840@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kuniyuki Iwashima 2025-07-02 16:01:27 -07:00 committed by Jakub Kicinski
parent e6e14d582d
commit 49b8223fa9
1 changed files with 0 additions and 6 deletions
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6
net/ipv6/mcast.c
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@ -605,10 +605,6 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
if (!ipv6_addr_is_multicast(group))
return -EINVAL;
/* changes to the ipv6_mc_list require the socket lock and
* rtnl lock. We have the socket lock, so reading the list is safe.
*/
for_each_pmc_socklock(inet6, sk, pmc) {
if (pmc->ifindex != gsf->gf_interface)
continue;
@ -2880,8 +2876,6 @@ static void ipv6_mc_rejoin_groups(struct inet6_dev *idev)
{
struct ifmcaddr6 *pmc;
ASSERT_RTNL();
mutex_lock(&idev->mc_lock);
if (mld_in_v1_mode(idev)) {
for_each_mc_mclock(idev, pmc)