netdev - Re: [PATCH] team: avoid NETDEV_CHANGEMTU event when unregistering slave

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Message-ID: <20260127074253.GA244149@shredder>
Date: Tue, 27 Jan 2026 09:42:53 +0200
From: Ido Schimmel <idosch@...dia.com>
To: Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc: Jiri Pirko <jiri@...nulli.us>, Breno Leitao <leitao@...ian.org>,
	"David S. Miller" <davem@...emloft.net>,
	David Ahern <dsahern@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH] team: avoid NETDEV_CHANGEMTU event when unregistering
 slave

Patch prefix should be "[PATCH net]". See:

https://docs.kernel.org/process/maintainer-netdev.html

On Sun, Jan 25, 2026 at 11:35:28PM +0900, Tetsuo Handa wrote:

[...]

Needs a Fixes tag. AFAICT, issue was present since the beginning, so:

Fixes: 3d249d4ca7d0 ("net: introduce ethernet teaming device")

> Reported-by: syzbot+881d65229ca4f9ae8c84@...kaller.appspotmail.com
> Closes: https://syzkaller.appspot.com/bug?extid=881d65229ca4f9ae8c84
> Suggested-by: Ido Schimmel <idosch@...dia.com>
> Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>

Doesn't build for me with CONFIG_NET_TEAM=m:

ERROR: modpost: module team uses symbol __netif_set_mtu from namespace NETDEV_INTERNAL, but does not import it.
make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1
make[1]: *** [/images/share/idosch/virtme-build/Makefile:2004: modpost] Error 2
make: *** [Makefile:248: __sub-make] Error 2

Needs:

diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c
index 0af2e5aa84fb..a0fe998cc055 100644
--- a/drivers/net/team/team_core.c
+++ b/drivers/net/team/team_core.c
@@ -3014,3 +3014,4 @@ MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Jiri Pirko <jpirko@...hat.com>");
 MODULE_DESCRIPTION("Ethernet team device driver");
 MODULE_ALIAS_RTNL_LINK(DRV_NAME);
+MODULE_IMPORT_NS("NETDEV_INTERNAL");