[PATCH 2/3] base-files: failsafe: Start also CPU interface for DSA

[Sven Roederer]

Am Samstag, 19. Juni 2021, 20:36:10 CEST schrieb Hauke Mehrtens:
> On a DSA switch the ports have an upper device, the CPU device, e.g.
> eth0. This device has to be in up state to bring up the lower devices
> like lan1.
> 
> Parse the link device from "ip link show" and bring it into up stated
> before bringing up the actual interface.
> 
> This is needed to make network in failsafe on systems with DSA work.
> 

Hauke, 

I tested you patches on the Mikrotik RB750Gr3 and WDR3600 (as I did in 
FS#3866), this time with customized IP-adresses and patches applied to 
OpenWrt-21.02.
For the WDR3600 the issue was fixed, but for the RB750 there is no network.
I was not able to usr IPv6 link-local, OpenWrt default 192.168.1.1 or my 
custom IP-Address.

The Rb750 is DSA, so it seems there is still something wrong. I'll retest with 
current master soon, to rule out issues based on 21.02-rc3.

Sven