linux-kernel - Re: [PATCH v2] selftests/kselftest/runner/run_one(): Allow running non-executable files

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Message-Id: <20230425004637.156064-1-sj@kernel.org>
Date:   Tue, 25 Apr 2023 00:46:37 +0000
From:   SeongJae Park <sj@...nel.org>
To:     gregkh@...uxfoundation.org, sashal@...nel.org
Cc:     stable@...r.kernel.org, sj@...nel.org, shuah@...nel.org,
        sj38.park@...il.com, akpm@...ux-foundation.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        SeongJae Park <sjpark@...zon.de>
Subject: Re: [PATCH v2] selftests/kselftest/runner/run_one(): Allow running non-executable files

Hi Greg and Sasha,

On Tue, 10 Aug 2021 16:45:34 +0000 SeongJae Park <sj38.park@...il.com> wrote:

> From: SeongJae Park <sjpark@...zon.de>
> 
> When running a test program, 'run_one()' checks if the program has the
> execution permission and fails if it doesn't.  However, it's easy to
> mistakenly missing the permission, as some common tools like 'diff'
> don't support the permission change well[1].  Compared to that, making
> mistakes in the test program's path would only rare, as those are
> explicitly listed in 'TEST_PROGS'.  Therefore, it might make more sense
> to resolve the situation on our own and run the program.
> 
> For the reason, this commit makes the test program runner function to
> still print the warning message but try parsing the interpreter of the
> program and explicitly run it with the interpreter, in the case.
> 
> [1] https://lore.kernel.org/mm-commits/YRJisBs9AunccCD4@kroah.com/
> 
> Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: SeongJae Park <sjpark@...zon.de>

This patch has merged into the mainline by the commit 303f8e2d0200
("selftests/kselftest/runner/run_one(): allow running non-executable files").
However, this patch has not added to v5.15.y, while there are some selftests
having no execution permission, including that for DAMON.  As a result, the
selftests always fail unless this patch is manually applied.  Could you please
add this patch to v5.15.y?  I confirmed this patch can cleanly cherry-picked on
the latest v5.15.y.


Thanks,
SJ