[PATCH v2 net 0/4] neighbour: Small fixes for RTM_{GET,SET}NEIGHTBL.

[Kuniyuki Iwashima <kuniyu@google.com>]

While working on the follow-up suggested here,

  https://lore.kernel.org/netdev/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/linux-fsdevel/20260905233819.1064529-2-kuniyu@google.com/


Changes:
  v2:
    * Patch 1
      * Use list_for_each_entry_rcu() and skip the default parms
    * Patch 2
      * Clarify the attribute is for NTF_MANAGED
      * Update docs, rt-neigh.yaml and ip-sysctl.rst

  v1: https://lore.kernel.org/netdev/20260907215853.3709987-1-kuniyu@google.com/


Kuniyuki Iwashima (4):
  neighbour: Add missing RCU annotation for neightbl_dump_info().
  neighbour: Enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.
  neighbour: Don't render blackhole_netdev via RTM_GETNEIGHTBL.
  neighbour: Skip default parms when resumed in neightbl_dump_info().

 Documentation/netlink/specs/rt-neigh.yaml |  2 ++
 Documentation/networking/ip-sysctl.rst    |  2 +-
 net/core/neighbour.c                      | 35 +++++++++++++++++------
 3 files changed, 29 insertions(+), 10 deletions(-)

-- 
2.55.0.979.g7e5102b832-goog