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 X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AFE64C4363A for ; Tue, 27 Oct 2020 00:08:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6769B20754 for ; Tue, 27 Oct 2020 00:08:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603757337; bh=M6nLiOgFP++RogrOVFEydGklvU16Km0pSIVQuMV35wE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DiR4i8osbnD0zGR2ARm7q70gS1Uttmr4I/MLAzBRxPX3F85emxoDhHFWjlQ+kMAW0 uJNnbW4GANQ3Q/kjxXl5eEZym/C9s4BnP0wU3YWpd1SOdz3b8EV8+oU939oTpgYA4M CLIpKBc5N/TNSLWhxUoHmzoLz9EjKhugXsmYKNUI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2394935AbgJ0AHt (ORCPT ); Mon, 26 Oct 2020 20:07:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:53784 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437945AbgJ0AE4 (ORCPT ); Mon, 26 Oct 2020 20:04:56 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C649D20754; Tue, 27 Oct 2020 00:04:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603757095; bh=M6nLiOgFP++RogrOVFEydGklvU16Km0pSIVQuMV35wE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1zsm2lTUXXQhgMej+0LkjLM59t/lEZ7HkvtAX1M8VVIHVzMQ2ln/tbh7k+C3zG74P 5uewCgYKeKy2Ls8gm8XWeC9F4dsFnEFGQ7PZ3J9ZsdaI/UDJv2At4idNoTdywdwD14 NwlytuKMOoi/PYIxL/01Jlq+ELEELi2EAuqv1krU= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Zhengyuan Liu , Gavin Shan , Will Deacon , Sasha Levin , linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 4.19 33/60] arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE Date: Mon, 26 Oct 2020 20:03:48 -0400 Message-Id: <20201027000415.1026364-33-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201027000415.1026364-1-sashal@kernel.org> References: <20201027000415.1026364-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Zhengyuan Liu [ Upstream commit a194c5f2d2b3a05428805146afcabe5140b5d378 ] The @node passed to cpumask_of_node() can be NUMA_NO_NODE, in that case it will trigger the following WARN_ON(node >= nr_node_ids) due to mismatched data types of @node and @nr_node_ids. Actually we should return cpu_all_mask just like most other architectures do if passed NUMA_NO_NODE. Also add a similar check to the inline cpumask_of_node() in numa.h. Signed-off-by: Zhengyuan Liu Reviewed-by: Gavin Shan Link: https://lore.kernel.org/r/20200921023936.21846-1-liuzhengyuan@tj.kylinos.cn Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- arch/arm64/include/asm/numa.h | 3 +++ arch/arm64/mm/numa.c | 6 +++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h index 626ad01e83bf0..dd870390d639f 100644 --- a/arch/arm64/include/asm/numa.h +++ b/arch/arm64/include/asm/numa.h @@ -25,6 +25,9 @@ const struct cpumask *cpumask_of_node(int node); /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ static inline const struct cpumask *cpumask_of_node(int node) { + if (node == NUMA_NO_NODE) + return cpu_all_mask; + return node_to_cpumask_map[node]; } #endif diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c index 54529b4ed5130..15eaf1e09d0ca 100644 --- a/arch/arm64/mm/numa.c +++ b/arch/arm64/mm/numa.c @@ -58,7 +58,11 @@ EXPORT_SYMBOL(node_to_cpumask_map); */ const struct cpumask *cpumask_of_node(int node) { - if (WARN_ON(node >= nr_node_ids)) + + if (node == NUMA_NO_NODE) + return cpu_all_mask; + + if (WARN_ON(node < 0 || node >= nr_node_ids)) return cpu_none_mask; if (WARN_ON(node_to_cpumask_map[node] == NULL)) -- 2.25.1