netdev - Re: [PATCH net-next v2 2/2] selftests: net: improve error handling in passive TFO test

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Message-ID: <aWkRvBz734sa_1vV@desktop.y-koj.net>
Date: Fri, 16 Jan 2026 01:21:00 +0900
From: Yohei Kojima <yk@...oj.net>
To: Markus Elfring <Markus.Elfring@....de>
Cc: linux-kselftest@...r.kernel.org, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>, Simon Horman <horms@...nel.org>
Subject: Re: [PATCH net-next v2 2/2] selftests: net: improve error handling
 in passive TFO test

On Wed, Jan 14, 2026 at 09:33:12AM +0100, Markus Elfring wrote:
> > Improve the error handling in passive TFO test to check the return value
> > from sendto(), and to fail if read() or fprintf() failed.
> 
> You propose to adjust error detection and corresponding exception handling another bit.
> How do you think about to take also another look if further function implementations
> would be similarly affected?

Thank you for the suggestion. The first objective of this series is to
fix the misleading behavior that was caused by the following bug.
Therefore, I intentionally limited the scope of this patch to the
affected or closely related functions.

https://lore.kernel.org/netdev/602c9e1ba5bb2ee1997bb38b1d866c9c3b807ae9.1767624906.git.yk@y-koj.net/

I believe this is sufficient to prevent it from showing misleading error
messages when the test fails.

Thank you,
Yohei

> 
> Regards,
> Markus