[PATCH v2 1/5] kernel: Backport patch to automatically bring up DSA master when opening user port

[Rafał Miłecki]

On 22.06.2021 00:45, Hauke Mehrtens wrote:
> Without this patch we have to manually bring up the CPU interface in
> failsafe mode.
> 
> This was backported from kernel 5.12.
> 
> Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>

This fixes bringing interface up on bcm4908 (target that uses DSA). It fixes:
ip: SIOCSIFFLAGS: Network is down

Tested-by: Rafał Miłecki <rafal at milecki.pl>