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From: Qingfang Deng <qingfang.deng@linux.dev>
To: netdev-bot+sinfo@kernel.org
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@kernel.org>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Breno Leitao <leitao@debian.org>, Kees Cook <kees@kernel.org>,
	Taegu Ha <hataegu0826@gmail.com>,
	Tom Parkin <tparkin@katalix.com>,
	linux-ppp@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	James Chapman <jchapman@katalix.com>,
	Sashiko <sashiko-bot@kernel.org>
Subject: Re: [PATCH net] ppp: linearize bridged packets when required
Date: Wed, 21 Oct 2026 11:07:27 +0800	[thread overview]
Message-ID: <c0f348bf-0e13-4cb1-8014-cd9b7787bfe6@linux.dev> (raw)
In-Reply-To: <179255036282.3290.8488375760281728576@kernel.org>

On 2026/10/21 10:39, netdev-bot+sinfo@kernel.org wrote:
> Hi!
>
> This is an automated message. This series looks like a fix, but its
> commit messages seem to be missing some information:
>
>   - Whether the issue was actually triggered, or is only theoretical
>     (e.g. found by code inspection). If it was triggered please include
>     the symptoms, like the stack trace or error messages.

This is reproduced in a VM, with a TAP interface bridged to a PTY. When 
IFF_NAPI_FRAGS is set, a non-linear skb is passed to PPPoE and then to 
ppp_async_send() without linearization. The packet sent to the PTY then 
contains garbage data.

>
> Please do not repost the series just to address the above. Instead,
> reply to this email with the missing information, so that reviewers
> can take it into account. If the series needs another revision for
> other reasons, please include the information in the commit messages
> then.
>
> The evaluation is done by an LLM so it may be wrong, if you think
> that is the case please reply and explain.

  reply	other threads:[~2026-10-21  3:07 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-21  2:36 [PATCH net] ppp: linearize bridged packets when required Qingfang Deng
2026-10-21  2:39 ` netdev-bot+sinfo
2026-10-21  3:07   ` Qingfang Deng [this message]
2026-10-21  9:24     ` Eric Dumazet
2026-10-21 10:27       ` Qingfang Deng

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