netdev - RE: [Intel-wired-lan] [PATCH net-next 2/2] i40e: Fix devlink port unregistering

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Date: Thu, 2 Nov 2023 05:33:25 +0000
From: "Pucha, HimasekharX Reddy" <himasekharx.reddy.pucha@...el.com>
To: ivecera <ivecera@...hat.com>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>
CC: "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Eric Dumazet
	<edumazet@...gle.com>, "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
	"Keller, Jacob E" <jacob.e.keller@...el.com>, Jakub Kicinski
	<kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, "David S. Miller"
	<davem@...emloft.net>
Subject: RE: [Intel-wired-lan] [PATCH net-next 2/2] i40e: Fix devlink port
 unregistering

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Ivan Vecera
> Sent: Tuesday, October 24, 2023 6:21 PM
> To: netdev@...r.kernel.org
> Cc: intel-wired-lan@...ts.osuosl.org; Brandeburg, Jesse <jesse.brandeburg@...el.com>; linux-kernel@...r.kernel.org; Eric Dumazet <edumazet@...gle.com>; Nguyen, Anthony L <anthony.l.nguyen@...el.com>; Keller, Jacob E <jacob.e.keller@...el.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; David S. Miller <davem@...emloft.net>
> Subject: [Intel-wired-lan] [PATCH net-next 2/2] i40e: Fix devlink port unregistering
>
> Ensure that devlink port is unregistered after unregistering
> of net device.
>
> Reproducer:
> [root@...t ~]# rmmod i40e
> [ 4742.939386] i40e 0000:02:00.1: i40e_ptp_stop: removed PHC on enp2s0f1np1
> [ 4743.059269] ------------[ cut here ]------------
> [ 4743.063900] WARNING: CPU: 21 PID: 10766 at net/devlink/port.c:1078 devl_port_unregister+0x69/0x80
> ...
>
> Fixes: 9e479d64dc58 ("i40e: Add initial devlink support")
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
>

Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)