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

From: Martin Schiller
Date: Tue Nov 24 2020 - 00:29:55 EST


On 2020-11-23 23:09, Xie He wrote:
On Mon, Nov 23, 2020 at 11:36 AM Jakub Kicinski <kuba@xxxxxxxxxx> wrote:

> > 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 :)

Xie other than this the patches look good to you?

Martin should I expect a respin to follow Xie's suggestion
or should I apply v4?

There should be a respin because we need to handle the NETDEV_UP
event. The lapbether driver (and possibly some HDLC WAN drivers)
doesn't generate carrier events so we need to do auto-connect in the
NETDEV_UP event.

I'll send a v5 with the appropriate change.