RE: [PATCH net-next 5/5] net: dsa: split dsa_port's netdev member

From: Vivien Didelot
Date: Fri Oct 13 2017 - 11:29:21 EST


Hi again,

Vivien Didelot <vivien.didelot@xxxxxxxxxxxxxxxxxxxx> writes:

>>> How about using:
>>>
>>> union {
>>> struct net_device *master;
>>> struct net_device *slave;
>>> } netdev;
>> ...
>>
>> You can remove the 'netdev' all the compilers support unnamed unions.
>
> There are issues with older GCC versions, see the commit 42275bd8fcb3
> ("switchdev: don't use anonymous union on switchdev attr/obj structs")
>
> That's why I kept it in the v2 I sent.

At the same time, I can see that struct sk_buff uses anonym union a lot.

It seems weird that one raised a compiler issue for switchdev but not
for skbuff.h... Do you think it is viable to drop the name here then?

I'd be happy to respin a v3 if this sounds safe.


Thanks,

Vivien