[Bridge] [PATCH net-next 1/5] bridge: initialize port flags with switchdev defaults

[Igor Mitsyanko]

On 03/10/2018 08:32 AM, Stephen Hemminger wrote:
> Yes hardware devices may come it with different default values.
> But the user experience on Linux needs to be consistent.
> 
> Instead, it makes more sense to me for each device driver using switchdev
> to program to the values that it sees in the bridge.
> 
> Please revise this.
> 

Right, it does change default user view, setting flags instead of 
querying makes more sense then.

However there is a problem that switchdev may not support all flags that 
bridge code sets by default. For example, looking at 
spectrum_switchdev.c, it only advertises support for BR_LEARNING | 
BR_FLOOD | BR_MCAST_FLOOD.
Currently, I assume that even though some flags are shown as set by 
default on a new bridge port, some of them are not actually working in 
switchdev?