linux-kernel - Re: [PATCH 3/4] x86/jump_label: Implement arch_static

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Message-ID: <1516038103.4937.2.camel@infradead.org>
Date:   Mon, 15 Jan 2018 18:41:43 +0100
From:   David Woodhouse <dwmw2@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org, Dave Hansen <dave.hansen@...el.com>,
        Ashok Raj <ashok.raj@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Arjan Van De Ven <arjan.van.de.ven@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jun Nakajima <jun.nakajima@...el.com>,
        Asit Mallick <asit.k.mallick@...el.com>,
        Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH 3/4] x86/jump_label: Implement arch_static_assert()

On Mon, 2018-01-15 at 11:22 -0600, Josh Poimboeuf wrote:
> And also, people without objtool enabled (i.e., no ORC or livepatch)
> won't see the assertion.  Do we care about those people? :-)

I think that's OK. Peter is right that this *would* be a GCC
regression. Someone who *does* have objtool enabled would see it, and
we'd be aware of it. That's enough to assuage my paranoia.
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