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Date: Mon, 6 Jun 2016 10:27:51 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>, "Rafael J . Wysocki" <rjw@rjwysocki.net>,
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        Thomas Gleixner <tglx@linutronix.de>, x86@kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND] cpufreq: p4-clockmod: Replace
 bool_int_array[NR_CPUS] with bitmap
Message-ID: <20160606082751.GB30154@twins.programming.kicks-ass.net>
References: <20160605165733.25076-1-dvlasenk@redhat.com>
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On Sun, Jun 05, 2016 at 06:57:33PM +0200, Denys Vlasenko wrote:
> Straigntforward conversion from
>     int has_N44_O17_errata[NR_CPUS]
> to
>     DECLARE_BITMAP(has_N44_O17_errata, NR_CPUS)
> 
> Saves about 2 kbytes in bss for NR_CPUS=512.


Using cpumask_var_t would save even more bytes. Or making it a single
global variables even more.