linux-kernel - Re: [PATCH v3 11/11] selftests: error out if kernel header files are not yet built

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Message-ID: <d12dd3ba-8b24-4fcf-8c55-00c765628836@nvidia.com>
Date:   Fri, 8 Dec 2023 17:39:06 -0800
From:   John Hubbard <jhubbard@...dia.com>
To:     Peter Zijlstra <peterz@...radead.org>
CC:     David Hildenbrand <david@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Peter Xu <peterx@...hat.com>, Shuah Khan <shuah@...nel.org>,
        "Nathan Chancellor" <nathan@...nel.org>, <linux-mm@...ck.org>,
        <linux-kselftest@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Muhammad Usama Anjum <usama.anjum@...labora.com>,
        Jonathan Corbet <corbet@....net>, <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v3 11/11] selftests: error out if kernel header files are
 not yet built

On 12/8/23 14:10, Peter Zijlstra wrote:
> So as David already argued, the current thing does not in fact help with
> b. You just have to install once and the error goes away, then carry
> that tree for a year and you're running old crap again.
> 
> My biggest beef with the whole thing is that I simply do not want to use
> 'make headers', it doesn't work for me.
> 
> I have a ton of output directories and I don't care to build tools into
> the output dirs, in fact some of them flat out refuse to work that way
> (bpf comes to mind).

Going with that, then, I believe it is best to simply revert commit
9fc96c7c19df ("selftests: error out if kernel header files are not
yet built"). And then follow up with a series of (many) changes to
wean the various selftests off of the kernel headers.

I'll post the revert shortly.

thanks,
-- 
John Hubbard
NVIDIA