From nobody Wed Feb 5 19:12:21 2025 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 113CD1F2391; Thu, 16 Jan 2025 13:12:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737033160; cv=none; b=Gc32HmOhll1gHyPjxdgz2FwO68vXv7FtVJl9hl02of4Q8BQJMZ7lfkdv7LL2mcZ2VnUebKesuVxz7GxTDVB42Y+1V8l8dBk/DkKO7fQgYVLHcSPR9Wqug2Pere2CxvJa3S1J5l57wbT4WU7oH7LaFfaFtGtuPFivwlV4xqmkcyQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737033160; c=relaxed/simple; bh=wE8bL5TDB/+CNcWPXtMBe4LKpFAJKUwucbz2o3RBDL8=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=rIvrCkQObvjmZDVCqldlVIvAAy5hOZ5MaOfTBXTnGoO31QdC35aA8Pju9NMS/B5OI+OthTs2QYDHxwtgwfTmeLjo2VrjkG6lqsEHkz8MI7Hc28IPusmAqaRehGeLpPTBHQwHU5QEkW1SwnQs/wUTkgSaKu70sQ6S/ErhVeCBE54= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=aXES0yfW; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=IcrMC3CH; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="aXES0yfW"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="IcrMC3CH" Date: Thu, 16 Jan 2025 13:12:35 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1737033156; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vb0NjYyjGpHfmsyrhEaEoI3+/+mRnYvL0RkIbjb3a9A=; b=aXES0yfWAnSHpZ+32TLr1dOwq9KlE2euJzbljM//3udrGTkUgdCVRZE7VihonV88Qxm0UA gGZ8HOVTJSlEjbVw8+oo7+Bpi1VhoKl4cj54NFCJVhAEsC29N5a9wmdiOaYWcweXZlG82O kIX5kvQ2la2pz65nh0s0gXXIOV4+6p4L3e3zafn4quLN6jQcjXXM52IxIZ54G6GnX0fQdW OZyEa1cPJ/rYl2i0ls7r2yrExbLTUtiGGXwOMIcafkweIy3O8Lvtn/anyaP+I21JwFmA1k 5uTGRggkAE4Z6gIVHrd3LUW+h5qov+4M2M6EnK0RfMWazpN4pyYpgcRwl+eWIA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1737033156; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vb0NjYyjGpHfmsyrhEaEoI3+/+mRnYvL0RkIbjb3a9A=; b=IcrMC3CHz1kBdogN+DtT7BNMZaVY+wml6le/S3qBpTtr2Vq0k7l5k2fQdfmmnHnNcmcPZJ a03ZoXcxeEXaEbBA== From: "tip-bot2 for Frederic Weisbecker" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: timers/core] timers/migration: Simplify top level detection on group setup Cc: Frederic Weisbecker , Thomas Gleixner , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20250114231507.21672-5-frederic@kernel.org> References: <20250114231507.21672-5-frederic@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <173703315576.31546.11361231237779733210.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the timers/core branch of tip: Commit-ID: dcf6230555dcd0b05e8d2dd5b128dcc4b6fc04ef Gitweb: https://git.kernel.org/tip/dcf6230555dcd0b05e8d2dd5b128dcc4b= 6fc04ef Author: Frederic Weisbecker AuthorDate: Wed, 15 Jan 2025 00:15:07 +01:00 Committer: Thomas Gleixner CommitterDate: Thu, 16 Jan 2025 14:01:09 +01:00 timers/migration: Simplify top level detection on group setup Having a single group on a given level is enough to know this is the top level, because a root has to have at least two children, unless that root is the only group and the children are actual CPUs. Simplify the test in tmigr_setup_groups() accordingly. Signed-off-by: Frederic Weisbecker Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250114231507.21672-5-frederic@kernel.org --- kernel/time/timer_migration.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/time/timer_migration.c b/kernel/time/timer_migration.c index 8d57f76..6163376 100644 --- a/kernel/time/timer_migration.c +++ b/kernel/time/timer_migration.c @@ -1624,9 +1624,7 @@ static int tmigr_setup_groups(unsigned int cpu, unsig= ned int node) * be different from tmigr_hierarchy_levels, contains only a * single group. */ - if (group->parent || i =3D=3D tmigr_hierarchy_levels || - (list_empty(&tmigr_level_list[i]) && - list_is_singular(&tmigr_level_list[i - 1]))) + if (group->parent || list_is_singular(&tmigr_level_list[i - 1])) break; =20 } while (i < tmigr_hierarchy_levels);