netdev - [PATCH net-next v2 0/2] net: notify users when an iface cannot change its netns

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Message-ID: <20250218171334.3593873-1-nicolas.dichtel@6wind.com>
Date: Tue, 18 Feb 2025 18:12:34 +0100
From: Nicolas Dichtel <nicolas.dichtel@...nd.com>
To: "David S . Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Alexander Lobakin <aleksander.lobakin@...el.com>
Cc: Ido Schimmel <idosch@...sch.org>,
	Andrew Lunn <andrew@...n.ch>,
	netdev@...r.kernel.org
Subject: [PATCH net-next v2 0/2] net: notify users when an iface cannot change its netns

This series adds a way to see if an interface cannot be moved to another netns.

v1 -> v2:
 - target the series to net-next
 - patch #1: 
   + use NLA_REJECT for the nl policy
   + update the rt link spec
 - patch #2: plumb extack in __dev_change_net_namespace()

 Documentation/netlink/specs/rt_link.yaml |  3 +++
 include/linux/netdevice.h                |  5 ++--
 include/uapi/linux/if_link.h             |  1 +
 net/core/dev.c                           | 41 +++++++++++++++++++++++++-------
 net/core/rtnetlink.c                     |  5 +++-
 5 files changed, 44 insertions(+), 11 deletions(-)

Comments are welcome.

Regards,
Nicolas