linux-kernel - Re: [PATCH 27/54] lib/bitmap: add bitmap_weight

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Message-ID: <Ye6gX6OivJCMb523@hirez.programming.kicks-ass.net>
Date:   Mon, 24 Jan 2022 13:49:35 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Yury Norov <yury.norov@...il.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Laight <David.Laight@...lab.com>,
        Joe Perches <joe@...ches.com>, Dennis Zhou <dennis@...nel.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Nicholas Piggin <npiggin@...il.com>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Alexey Klimov <aklimov@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 27/54] lib/bitmap: add bitmap_weight_{cmp, eq, gt, ge,
 lt, le} functions

On Mon, Jan 24, 2022 at 02:43:30PM +0200, Andy Shevchenko wrote:
> It may be other way around:
> 
> 	if ((unsigned int)num > nbits)

Yes, that's my preferred method too :-)