On Tue, 12 Jan 2021 10:51:39 -0800 Florian Fainelli wrote:
> On 1/11/21 3:09 PM, Vladimir Oltean wrote:
> > From: Vladimir Oltean <vladimir.olt...@nxp.com>
> >
> > Currently the following happens when a DSA master driver unbinds while
> > there are DSA switches attached to it:
> >
> > $ echo 0000:00:00.5 > /sys/bus/pci/drivers/mscc_felix/unbind
> > ------------[ cut here ]------------
> > WARNING: CPU: 0 PID: 392 at net/core/dev.c:9507
> > Call trace:
> > rollback_registered_many+0x5fc/0x688
> > unregister_netdevice_queue+0x98/0x120
> > dsa_slave_destroy+0x4c/0x88
> > dsa_port_teardown.part.16+0x78/0xb0
> > dsa_tree_teardown_switches+0x58/0xc0
> > dsa_unregister_switch+0x104/0x1b8
> > felix_pci_remove+0x24/0x48
> > pci_device_remove+0x48/0xf0
> > device_release_driver_internal+0x118/0x1e8
> > device_driver_detach+0x28/0x38
> > unbind_store+0xd0/0x100
> > [...]
> >
> > Fixes: 2f1e8ea726e9 ("net: dsa: link interfaces with the DSA master to get
> > rid of lockdep warnings")
> > Signed-off-by: Vladimir Oltean <vladimir.olt...@nxp.com>
>
> Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
> Tested-by: Florian Fainelli <f.faine...@gmail.com>
Applied, thanks!
