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

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Message-ID: <2023041100-oblong-enamel-5893@gregkh>
Date:   Tue, 11 Apr 2023 17:14:37 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Lorenz Bauer <lmb@...valent.com>
Cc:     Sasha Levin <sashal@...nel.org>, 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 Tue, Apr 11, 2023 at 04:08:32PM +0100, Lorenz Bauer wrote:
> On Tue, Mar 28, 2023 at 11:18 AM Lorenz Bauer <lmb@...valent.com> wrote:
> >
> > On Mon, Mar 20, 2023 at 3:48 PM Greg KH <gregkh@...uxfoundation.org> wrote:
> > >
> > > Why would it break?  Is that because the test is buggy, or the kernel is
> > > buggy?
> >
> > This test will be fine, but there have been several times when
> > selftests/bpf for stable kernel releases didn't actually compile due
> > to backported tests. This is because macros we're redefined, etc.
> > Unless those also get picked (seems like a sisyphean task) we'll keep
> > seeing broken selftests/bpf on stable.
> 
> Hi Greg, Sasha,
> 
> Following up on this since it seems to have fallen through the cracks.

I didn't see anything to do here.

And selftests should NOT be broken on stable releases, if so, something
is wrong as no other subsystem has that happen.

confused,

greg k-h