Re: [PATCH net-next v4 2/5] net/lapb: support netdev events

[Xie He]

On Mon, Nov 23, 2020 at 2:38 AM Martin Schiller <ms@xxxxxxxxxx> wrote:
>
> Well, one could argue that we would have to repair these drivers, but I
> don't think that will get us anywhere.

Yeah... One problem I see with the Linux project is the lack of
docs/specs. Often we don't know what is right and what is wrong.

>  From this point of view it will be the best to handle the NETDEV_UP in
> the lapb event handler and establish the link analog to the
> NETDEV_CHANGE event if the carrier is UP.

Thanks! This way we can make sure LAPB would automatically connect in
all situations.

Since we'll have a netif_carrier_ok check in NETDEV_UP handing, it
might make the code look prettier to also have a netif_carrier_ok
check in NETDEV_GOING_DOWN handing (for symmetry). Just a suggestion.
You can do whatever looks good to you :)

Thanks!