From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F70040DFB0; Thu, 26 Mar 2026 08:30:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774513824; cv=none; b=WEdEtH3HoQDnjE7e1M3SRrPr0k9dMyYgfF4g5u5neVDJWZxboS7/E5WzLGIhN1osNcg/7F+scAcht5vaSdQOVj/ia0k5SXayT7G8HbL5YPK4cjEGkJ++9yjVFGECt2tWzDwUAFSOm22pFCagIDHJaj3QKtcV3KC+TOeqSXMTylE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774513824; c=relaxed/simple; bh=TqOkjz5kCueNamDei3AnmFETLiBpqvS07zVsHNmVrHI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OOsV8IG3xPUxGSikDi1PceDptJH3P56I9K4KKs1+5hmtGEg6eK962yDG1IJF27uF+JMLJtUmB0uuqactAPCyd72lr5VuJxTWYMK/2/HJtfLEjko2/sy8IGHx60nUSB49tQVKPMjAktAI/CsDuLykgJlrjFSowTKMkO6d9AWtTTI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=CgI7u7pv; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=0PoPML93; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="CgI7u7pv"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="0PoPML93" Date: Thu, 26 Mar 2026 09:30:20 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1774513821; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TqOkjz5kCueNamDei3AnmFETLiBpqvS07zVsHNmVrHI=; b=CgI7u7pvyWpAhAIaFqT/W9Ery+wogMZEg4tf/uTzyuQuOr/mPNWp94Q23NRcheoTBnC2Fv DriYZg6lKMp5EEe/n2qDk6PHnm8KX0rmf0Pl1UdzBS53xaEshttImS9eFNfGp02AMXWIQl KfBJvHCxR+VxaHVUXwMCa6+pbByROj0WSFMgnz7vhliGZJzDxo27aIr5fQbx3/uWz4k1O/ tGUxd/7R8+nvPb9UGVSitfIQRWouIIJmctQZKbYvbjNV0MKydydS3rejm36xj5K+fzErOp ii8RnY9KjiMkNnhPHMeHfptLIcGlirbXY8RoRbMMGWS+cIUwUiL4tyYibAP6Ag== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1774513821; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TqOkjz5kCueNamDei3AnmFETLiBpqvS07zVsHNmVrHI=; b=0PoPML93HY+Bm3PCUxhSrvyDqD2qs6QUYlc5dpt6yTIDvyNS8Yc7gVCR+vD7v56AQegZT+ iTN9DmPYmvg5LZAw== From: Sebastian Andrzej Siewior To: Qingfang Deng Cc: Shuah Khan , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Felix Maurer , Antonio Quartulli , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-ppp@vger.kernel.org, netdev@vger.kernel.org, Paul Mackerras , Guillaume Nault Subject: Re: [PATCH net-next v4] selftests: net: add tests for PPP Message-ID: <20260326083020.2fOQj5br@linutronix.de> References: <20260326021642.29170-1-dqfext@gmail.com> <20260326081304.xKa7-s_1@linutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: On 2026-03-26 16:26:23 [+0800], Qingfang Deng wrote: > Hi Sebastian, Hi Qingfang, > On Thu, Mar 26, 2026 at 4:13=E2=80=AFPM Sebastian Andrzej Siewior > 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? >=20 > By "invalid loop", do you mean transmit recursion? > https://lore.kernel.org/all/20250715150806.700536-2-bigeasy@linutronix.de/ >=20 > AFAIK, this can only happen with PPTP or L2TP, which were not included > in this patch. Yeah, that one. I was sort of looking into but gave up after a while digging through code, since I had no idea how to setup that up=E2=80=A6 > Add Cc: Guillaume Nault >=20 >=20 > Regards, > Qingfang Sebastian