linux-kernel - Re: [PATCH 2/2] selftests/fpu: Add an FPU selftest

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Message-ID: <20200622171240.GI32200@zn.tnic>
Date:   Mon, 22 Jun 2020 19:12:40 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     X86 ML <x86@...nel.org>, jpa@...nelbug.mail.kapsi.fi,
        Dave Hansen <dave.hansen@...el.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] selftests/fpu: Add an FPU selftest

On Fri, Jun 19, 2020 at 11:00:28AM -0700, Andy Lutomirski wrote:
> This should be cc-option, not cc-ifversion, I think.

Why?

> But maybe we should consider dropping the problematic GCC version
> instead? The old GCC versions with stack alignment problems are
> seriously problematic for x86 kernels, and I don't really trust
> kernels built with them.

Can't - we just upped min gcc version to 4.8:

5429ef62bcf3 ("compiler/gcc: Raise minimum GCC version for kernel builds to 4.8")

I mean we could but everytime we do that, it is all a big bikeshedding
discussion. Even though almost everyone is using gcc9 or so to build...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette