From nobody Thu Sep 11 17:12:14 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B008C0015E for ; Mon, 7 Aug 2023 02:33:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229815AbjHGCdP (ORCPT ); Sun, 6 Aug 2023 22:33:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229805AbjHGCdN (ORCPT ); Sun, 6 Aug 2023 22:33:13 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E5311722 for ; Sun, 6 Aug 2023 19:33:09 -0700 (PDT) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.54]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4RK0fN06qsz1Z1Tm; Mon, 7 Aug 2023 10:30:20 +0800 (CST) Received: from huawei.com (10.174.151.185) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 7 Aug 2023 10:33:07 +0800 From: Miaohe Lin To: , CC: , , Subject: [PATCH v2] mm/mm_init: use helper macro BITS_PER_LONG and BITS_PER_BYTE Date: Mon, 7 Aug 2023 10:32:47 +0800 Message-ID: <20230807023247.308414-1-linmiaohe@huawei.com> X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.174.151.185] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" It's more readable to use helper macro BITS_PER_LONG and BITS_PER_BYTE. No functional change intended. Signed-off-by: Miaohe Lin --- v2: use BITS_PER_BYTE per Mike. Thanks. --- mm/mm_init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/mm_init.c b/mm/mm_init.c index 66aca3f6accd..93b1febd4a32 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -79,7 +79,7 @@ void __init mminit_verify_pageflags_layout(void) int shift, width; unsigned long or_mask, add_mask; =20 - shift =3D 8 * sizeof(unsigned long); + shift =3D BITS_PER_LONG; width =3D shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH - LAST_CPUPID_SHIFT - KASAN_TAG_WIDTH - LRU_GEN_WIDTH - LRU_REFS_WIDTH; mminit_dprintk(MMINIT_TRACE, "pageflags_layout_widths", @@ -1431,9 +1431,9 @@ static unsigned long __init usemap_size(unsigned long= zone_start_pfn, unsigned l usemapsize =3D roundup(zonesize, pageblock_nr_pages); usemapsize =3D usemapsize >> pageblock_order; usemapsize *=3D NR_PAGEBLOCK_BITS; - usemapsize =3D roundup(usemapsize, 8 * sizeof(unsigned long)); + usemapsize =3D roundup(usemapsize, BITS_PER_LONG); =20 - return usemapsize / 8; + return usemapsize / BITS_PER_BYTE; } =20 static void __ref setup_usemap(struct zone *zone) --=20 2.33.0