Merge branch 'neighbour-small-fixes-for-rtm_-get-set-neightbl'

Kuniyuki Iwashima says:

====================
neighbour: Small fixes for RTM_{GET,SET}NEIGHTBL.

While working on the follow-up suggested here,

  https://lore.kernel.org/20260902143023.GA3966681@shredder

I found a few bugs in RTM_GETNEIGHTBL and RTM_SETNEIGHTBL,
which this series fixes.

Patch 1, 3, 4 will conflict with net-next in neightbl_dump_info()
due to removal of net_eq() below:

	p = list_next_entry(&tbl->parms, list);
	list_for_each_entry_from_rcu(p, &tbl->parms_list, list) {
		if (!net_eq(neigh_parms_net(p), net))
			continue;

Note also that currently neigh_proc_dointvec_ms_jiffies_positive()
is buggy and does not enforce min/max, and it needs this fix:

  https://lore.kernel.org/20260905233819.1064529-2-kuniyu@google.com
====================

Link: https://patch.msgid.link/20260909233143.2401847-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>