netdev - [patch net-next v2 0/4] net: allow per-net notifier to follow netdev into namespace

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Date:   Sat, 25 Jan 2020 12:17:05 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jakub.kicinski@...ronome.com,
        saeedm@...lanox.com, leon@...nel.org, tariqt@...lanox.com,
        ayal@...lanox.com, vladbu@...lanox.com, michaelgur@...lanox.com,
        moshe@...lanox.com, mlxsw@...lanox.com, dsahern@...il.com
Subject: [patch net-next v2 0/4] net: allow per-net notifier to follow netdev into namespace

From: Jiri Pirko <jiri@...lanox.com>

Currently we have per-net notifier, which allows to get only
notifications relevant to particular network namespace. That is enough
for drivers that have netdevs local in a particular namespace (cannot
move elsewhere).

However if netdev can change namespace, per-net notifier cannot be used.
Introduce dev_net variant that is basically per-net notifier with an
extension that re-registers the per-net notifier upon netdev namespace
change. Basically the per-net notifier follows the netdev into
namespace.

Jiri Pirko (4):
  net: call call_netdevice_unregister_net_notifiers from unregister
  net: push code from net notifier reg/unreg into helpers
  net: introduce dev_net notifier register/unregister variants
  mlx5: Use dev_net netdevice notifier registrations

 .../net/ethernet/mellanox/mlx5/core/en/fs.h   |   1 +
 .../net/ethernet/mellanox/mlx5/core/en_main.c |   3 +-
 .../net/ethernet/mellanox/mlx5/core/en_rep.c  |  13 +-
 .../net/ethernet/mellanox/mlx5/core/en_rep.h  |   1 +
 .../net/ethernet/mellanox/mlx5/core/en_tc.c   |   9 +-
 drivers/net/ethernet/mellanox/mlx5/core/lag.c |   8 +-
 drivers/net/ethernet/mellanox/mlx5/core/lag.h |   1 +
 .../ethernet/mellanox/mlx5/core/mlx5_core.h   |   2 +-
 include/linux/netdevice.h                     |  17 +++
 net/core/dev.c                                | 118 +++++++++++++-----
 10 files changed, 131 insertions(+), 42 deletions(-)

-- 
2.21.0