Re: [PATCH net-next v4] selftests: net: add tests for PPP

[Qingfang Deng]

Hi Sebastian,

On Thu, Mar 26, 2026 at 4:13 PM Sebastian Andrzej Siewior
<bigeasy@xxxxxxxxxxxxx> wrote:
>
> On 2026-03-26 10:16:24 [+0800], Qingfang Deng wrote:
> > Add ping and iperf3 tests for ppp_async.c and pppoe.c.
>
> Oh thank you for doing this.
> I haven't look in detail but this cover the "invalid loop" cases that
> ppp tries to catch?

By "invalid loop", do you mean transmit recursion?
https://lore.kernel.org/all/20250715150806.700536-2-bigeasy@xxxxxxxxxxxxx/

AFAIK, this can only happen with PPTP or L2TP, which were not included
in this patch.

Add Cc: Guillaume Nault


Regards,
Qingfang