linux-kernel - Re: [PATCH AUTOSEL 6.2 08/30] selftests/bpf: check that modifier resolves after pointer

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Message-ID: <CAN+4W8g6AcQQWe7rrBVOFYoqeQA-1VbUP_W7DPS3q0k-czOLfg@mail.gmail.com>
Date:   Mon, 20 Mar 2023 15:31:42 +0000
From:   Lorenz Bauer <lmb@...valent.com>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Martin KaFai Lau <martin.lau@...nel.org>, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org, shuah@...nel.org,
        yhs@...com, eddyz87@...il.com, sdf@...gle.com, error27@...il.com,
        iii@...ux.ibm.com, memxor@...il.com, bpf@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 6.2 08/30] selftests/bpf: check that modifier
 resolves after pointer

On Mon, Mar 20, 2023 at 12:53 AM Sasha Levin <sashal@...nel.org> wrote:
>
> From: Lorenz Bauer <lorenz.bauer@...valent.com>
>
> [ Upstream commit dfdd608c3b365f0fd49d7e13911ebcde06b9865b ]
>
> Add a regression test that ensures that a VAR pointing at a
> modifier which follows a PTR (or STRUCT or ARRAY) is resolved
> correctly by the datasec validator.
>
> Signed-off-by: Lorenz Bauer <lmb@...valent.com>
> Link: https://lore.kernel.org/r/20230306112138.155352-3-lmb@isovalent.com
> Signed-off-by: Martin KaFai Lau <martin.lau@...nel.org>
> Signed-off-by: Sasha Levin <sashal@...nel.org>

Hi Sasha,

Can you explain why this patch was selected? I'd prefer to not
backport the test, since it frequently leads to breakage when trying
to build selftests/bpf on stable kernels.

Thanks
Lorenz