Re: [PATCH net-next v7 0/5] net: hdlc_fr: Improve fr_rx and add support for any Ethertype

[Xie He]

On Tue, Nov 3, 2020 at 6:03 PM Xie He <xie.he.0141@xxxxxxxxx> wrote:
>
> On Tue, Nov 3, 2020 at 3:22 PM Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
> >
> > Applied, but going forward please limit any refactoring and extensions
> > to the HDLC code. I thought you are actually using it. If that's not
> > the case let's leave the code be, it's likely going to be removed in
> > a few years time.
>
> OK. I understand.
>
> Thanks!

The HDLC layer is still used by X.25 people (to be precise, Martin
Schiller <ms@xxxxxxxxxx>). Although we currently have three X.25
drivers in the kernel (lapbether, x25_asy, hdlc_x25), it seems to me
that only hdlc_x25 is used in the real world. So I guess the HDLC
layer will be there as long as the X.25 stack is still there.