linux-kernel - Re: [PATCH v2] selftests/futex: Convert 32bit timespec struct to 64bit version for 32bit compatibility mode

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Message-ID: <87ikkblkff.ffs@tglx>
Date: Tue, 01 Jul 2025 22:34:28 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Terry Tritton <terry.tritton@...aro.org>, Shuah Khan <shuah@...nel.org>,
 Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>,
 Darren Hart <dvhart@...radead.org>, Davidlohr Bueso <dave@...olabs.net>,
 André Almeida <andrealmeid@...lia.com>
Cc: ttritton@...gle.com, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org, Terry Tritton <terry.tritton@...aro.org>,
 Wei Gao <wegao@...e.com>
Subject: Re: [PATCH v2] selftests/futex: Convert 32bit timespec struct to
 64bit version for 32bit compatibility mode

On Tue, Jul 01 2025 at 15:23, Terry Tritton wrote:
> Futex_waitv can not accept old_timespec32 struct, so userspace should
> convert it from 32bit to 64bit before syscall in 32bit compatible mode.
>
> This fix is based off [1]
>
> Link: https://lore.kernel.org/all/20231203235117.29677-1-wegao@suse.com/ [1]
>
> Signed-off-by: Wei Gao <wegao@...e.com>
> Signed-off-by: Terry Tritton <terry.tritton@...aro.org>

This is still wrong.

If it is based on someone else work, then you need to attribute it
Originally-by and omit the Signed-off-by of the original author.

If you just picked it up and adopted it to a later kernel version then
you need to add 'From: Original Author' and preserve his Signed-off-by.

If you collaborated with him, then you want to use Co-developed-by.

All of this is documented in Documentation/process/