linux-kernel - Re: [PATCH -next] arm64/spinlock: fix a -Wunused-function warning

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Date:   Thu, 23 Jan 2020 12:23:36 -0500
From:   Qian Cai <cai@....pw>
To:     Will Deacon <will@...nel.org>
Cc:     peterz@...radead.org, longman@...hat.com, mingo@...hat.com,
        catalin.marinas@....com, clang-built-linux@...glegroups.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] arm64/spinlock: fix a -Wunused-function warning



> On Jan 23, 2020, at 11:56 AM, Will Deacon <will@...nel.org> wrote:
> 
> Damn, the whole point of this was to warn in the case that
> vcpu_is_preempted() does get defined for arm64. Can we force it to evaluate
> the macro argument instead (e.g. ({ (cpu), false; }) or something)?

That should work. Let me test it out and rinse.