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Date:   Thu, 9 Jul 2020 12:30:24 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Brian Gerst <brgerst@...il.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: [PATCH v2 02/10] x86/percpu: Clean up percpu_to_op()

On Sat, May 30, 2020 at 06:11:19PM -0400, Brian Gerst wrote:
> +	if (0) {		                                        \
> +		typeof(_var) pto_tmp__;					\
> +		pto_tmp__ = (_val);					\
> +		(void)pto_tmp__;					\
> +	}								\

This is repeated at least once more; and it looks very similar to
__typecheck() and typecheck() but is yet another variant afaict.

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