linux-kernel - Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array

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Message-ID: <20170317180350.63jjysejk2i6vkon@pd.tnic>
Date:   Fri, 17 Mar 2017 19:03:50 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Alexander Potapenko <glider@...gle.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Michael Davidson <md@...gle.com>,
        Michal Marek <mmarek@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Shaohua Li <shli@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Matthias Kaehlcke <mka@...omium.org>, x86@...nel.org,
        linux-kbuild@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        linux-crypto@...r.kernel.org, linux-raid@...r.kernel.org
Subject: Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array

On Fri, Mar 17, 2017 at 01:32:00PM +0100, Alexander Potapenko wrote:
> > IIUC there's only a handful of VLAIS instances in LLVM code, why not
> Sorry, "kernel code", not "LLVM code".
> > just drop them for the sake of better code portability?

And what happens if someone else adds a variable thing like this
somewhere else, builds with gcc, everything's fine and patch gets
applied? Or something else llvm can't stomach.

Does that mean there'll be the occasional, every-so-often whack-a-mole
patchset from someone, fixing the kernel build with llvm yet again?

-- 
Regards/Gruss,
    Boris.

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