From mboxrd@z Thu Jan 1 00:00:00 1970 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 73D7CC433F5 for ; Fri, 11 Feb 2022 04:10:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242501AbiBKEKP (ORCPT ); Thu, 10 Feb 2022 23:10:15 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:46992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230111AbiBKEKN (ORCPT ); Thu, 10 Feb 2022 23:10:13 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15EB495 for ; Thu, 10 Feb 2022 20:10:13 -0800 (PST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Jw0Wc719Rz4xcl; Fri, 11 Feb 2022 15:10:04 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1644552611; bh=RFsFjuurNBFd2aL+0sg0sXo9uTFRidxaWUgwOIgeZgM=; h=From:To:Subject:In-Reply-To:References:Date:From; b=Pg/t2qDQ/ohBUbWL2BXoOJZ/DzTFgFXC/f+noNff+KFgsYyqr05TeFDx1QR2E/XXJ ImF/OF6qjN3BRqpHCZ3C+Sm0Jt6zeVw8ISneyZbC4ElRqQofikI/4OoHggWpIMlkMi fBPDFia3KAfChQdV0serdS6occ5yWuLLgIVMCgvsGy4foONOhZVDVEEb9tsGkcb96c v0n8osmRE1S0YPTKo82ItglVuNZ+pQRUkWGmcZQg5JSlz/aaywfNXDpsV7Mlo9RB5k fhp7zZQBf7p9Ynzvun2jUUMIX5GYlyohyIelLyAKoCfnKBiItuZ37ewWMfgfTg2OGu ySFqR7lgMG+gw== From: Michael Ellerman To: Yury Norov , Yury Norov , Andy Shevchenko , Rasmus Villemoes , Andrew Morton , =?utf-8?Q?Micha=C5=82_Miros=C5=82aw?= , Greg Kroah-Hartman , Peter Zijlstra , David Laight , Joe Perches , Dennis Zhou , Emil Renner Berthing , Nicholas Piggin , Matti Vaittinen , Alexey Klimov , linux-kernel@vger.kernel.org, Benjamin Herrenschmidt , Paul Mackerras , Srikar Dronamraju , "Gautham R. Shenoy" , Valentin Schneider , Parth Shah , =?utf-8?Q?C=C3=A9dric?= Le Goater , Hari Bathini , Rob Herring , Laurent Dufour , Petr Mladek , John Ogness , Sudeep Holla , Christophe Leroy , "Naveen N. Rao" , Xiongwei Song , Arnd Bergmann , linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH 38/49] arch/powerpc: replace cpumask_weight with cpumask_weight_{eq, ...} where appropriate In-Reply-To: <20220210224933.379149-39-yury.norov@gmail.com> References: <20220210224933.379149-1-yury.norov@gmail.com> <20220210224933.379149-39-yury.norov@gmail.com> Date: Fri, 11 Feb 2022 15:10:02 +1100 Message-ID: <87tud6rqlh.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Yury Norov writes: > PowerPC code uses cpumask_weight() to compare the weight of cpumask with > a given number. We can do it more efficiently with cpumask_weight_{eq, ...} > because conditional cpumask_weight may stop traversing the cpumask earlier, > as soon as condition is (or can't be) met. > > Signed-off-by: Yury Norov > --- > arch/powerpc/kernel/smp.c | 2 +- > arch/powerpc/kernel/watchdog.c | 2 +- > arch/powerpc/xmon/xmon.c | 4 ++-- > 3 files changed, 4 insertions(+), 4 deletions(-) Acked-by: Michael Ellerman cheers