linux-kernel - Re: [PATCH 0/2] bitmap: introduce bitmap_weight

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Message-ID: <b941aa3e-c3e0-4d0c-b4b7-8cc1fcf513a5@intel.com>
Date: Mon, 21 Jul 2025 08:30:13 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: Yury Norov <yury.norov@...il.com>, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
 Dave Hansen <dave.hansen@...ux.intel.com>, "H. Peter Anvin" <hpa@...or.com>,
 Rasmus Villemoes <linux@...musvillemoes.dk>,
 Andrew Morton <akpm@...ux-foundation.org>,
 "Peter Zijlstra (Intel)" <peterz@...radead.org>,
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 Fernando Fernandez Mancera <ffmancera@...eup.net>,
 "Xin Li (Intel)" <xin@...or.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] bitmap: introduce bitmap_weight_from()

On 7/19/25 18:41, Yury Norov wrote:
>  arch/x86/kernel/cpu/topology.c |  9 ++-------
>  include/linux/bitmap.h         | 11 +++++++++++
>  lib/bitmap.c                   | 28 ++++++++++++++++++++++++++++
>  3 files changed, 41 insertions(+), 7 deletions(-)

I think we need to hear more about the motivation for doing this,
including if there are other sites that might benefit from this helper.