linux-kernel - Re: [PATCH v2] x86/retpoline: Add clang support

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Date:   Wed, 14 Feb 2018 13:09:29 +0000
From:   David Woodhouse <dwmw2@...radead.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
        gnomes@...rguk.ukuu.org.uk, Rik van Riel <riel@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>, thomas.lendacky@....com,
        Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Jiri Kosina <jikos@...nel.org>,
        Andy Lutomirski <luto@...capital.net>,
        Dave Hansen <dave.hansen@...el.com>,
        Kees Cook <keescook@...gle.com>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...ux-foundation.org>,
        Paul Turner <pjt@...gle.com>
Subject: Re: [PATCH v2] x86/retpoline: Add clang support



On Tue, 2018-02-13 at 18:18 -0800, Guenter Roeck wrote:
> 
> > We're going to need the percpu.h fix too, and I'd also like to see the
> > status of the i915 build failure you mentioned. Is there a bug filed
> > for that already, and is it on the blocker list for 6.0? If not, why
> > not?
> > 
> For my part I completely forgot about it :-(. Did you expect me to file a bug ?
> If so, I'll need to retest and try to figure out how to do that. Let me know;
> I should be able to get that done tomorrow.

I *thought* you had mentioned that it didn't build; in that case
absolutely, I expected there to be a bug filed already. As a general
rule, nobody should *ever* mention that something is broken, without
first ensuring the bug is filed.

Looking back, I can't now see where you said that; maybe I made it up
and I only observed this failure myself. Either way, I already filed
https://bugs.llvm.org/show_bug.cgi?id=36378 after searching bugzilla
and not finding it.

Thanks.
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