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Message-ID: <20190626080605.GH3419@hirez.programming.kicks-ass.net>
Date:   Wed, 26 Jun 2019 10:06:05 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Joe Perches <joe@...ches.com>, Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        Kan Liang <kan.liang@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Shawn Landden <shawn@....icu>
Subject: Re: [PATCH] perf/x86/intel: Mark expected switch fall-throughs

On Tue, Jun 25, 2019 at 10:12:42AM -0700, Kees Cook wrote:
> On Tue, Jun 25, 2019 at 09:18:46AM +0200, Peter Zijlstra wrote:
> > Can it build a kernel without patches yet? That is, why should I care
> > what LLVM does?
> 
> Yes. LLVM trunk builds and boots x86 now. As for distro availability,

If it's not release and not in distros, then no. So then get that same
trunk to support the __fallthrough crap so it all lands in the same
release and we done ;-)

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