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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 3FFA2C43381 for ; Mon, 28 Dec 2020 14:02:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F00220791 for ; Mon, 28 Dec 2020 14:02:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2436875AbgL1OCb (ORCPT ); Mon, 28 Dec 2020 09:02:31 -0500 Received: from mail.kernel.org ([198.145.29.99]:36296 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2436869AbgL1OCa (ORCPT ); Mon, 28 Dec 2020 09:02:30 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A2A24207AB; Mon, 28 Dec 2020 14:01:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609164110; bh=CW7sfNxjmiuSU4N04oyKZ7us6J5vXrFyc5Nu30RjiKk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=id62iS/uJD1zoy39O/b7Ap18M4ITG6TwJ14ghRKu0q5LAlHpw48MT+RucQD32+NpY vJ16PEYE6EdjMfohPWNJKFp6Bv72utXHTMmcalpAwCiurXW/2rWsQbo17vpKMF+UUm cwIlpUjfHf7O4PujMTz27eWD7pRq4qbIyBg8DEvY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zhen Lei , Borislav Petkov , Sasha Levin Subject: [PATCH 5.10 063/717] x86/mce: Correct the detection of invalid notifier priorities Date: Mon, 28 Dec 2020 13:41:01 +0100 Message-Id: <20201228125024.015298296@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228125020.963311703@linuxfoundation.org> References: <20201228125020.963311703@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Zhen Lei [ Upstream commit 15af36596ae305aefc8c502c2d3e8c58221709eb ] Commit c9c6d216ed28 ("x86/mce: Rename "first" function as "early"") changed the enumeration of MCE notifier priorities. Correct the check for notifier priorities to cover the new range. [ bp: Rewrite commit message, remove superfluous brackets in conditional. ] Fixes: c9c6d216ed28 ("x86/mce: Rename "first" function as "early"") Signed-off-by: Zhen Lei Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20201106141216.2062-2-thunder.leizhen@huawei.com Signed-off-by: Sasha Levin --- arch/x86/include/asm/mce.h | 3 ++- arch/x86/kernel/cpu/mce/core.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index a0f147893a041..fc25c88c7ff29 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -177,7 +177,8 @@ enum mce_notifier_prios { MCE_PRIO_EXTLOG, MCE_PRIO_UC, MCE_PRIO_EARLY, - MCE_PRIO_CEC + MCE_PRIO_CEC, + MCE_PRIO_HIGHEST = MCE_PRIO_CEC }; struct notifier_block; diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index 32b7099e35111..311688202ea51 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -162,7 +162,8 @@ EXPORT_SYMBOL_GPL(mce_log); void mce_register_decode_chain(struct notifier_block *nb) { - if (WARN_ON(nb->priority > MCE_PRIO_MCELOG && nb->priority < MCE_PRIO_EDAC)) + if (WARN_ON(nb->priority < MCE_PRIO_LOWEST || + nb->priority > MCE_PRIO_HIGHEST)) return; blocking_notifier_chain_register(&x86_mce_decoder_chain, nb); -- 2.27.0