[PATCH 4/4] net: dsa: remove master santiy check

[Michael Walle]

Am 2021-02-24 17:40, schrieb Michael Walle:
> Because we probe the master ourselves (and fail if there is no master),
> it is not possible that we don't have a master device.
> 
> There is one catch though: device removal. We don't support that. It
> wasn't supported neither before this patch. Because the master device
> was only set in .pre_probe(), if a device was removed master_dev was a
> dangling pointer and transmitting a frame cause a panic. I don't see a
> good solution without having some sort of notify machanism when a
> udevice is removed.
> 
> Signed-off-by: Michael Walle <michael at walle.cc>

FWIW

Tested-by: Michael Walle <michael at walle.cc> [DSA unit tests]