From patchwork Thu May 20 09:21:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 445535 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 85F5CC433B4 for ; Thu, 20 May 2021 10:30:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6AF9C613AA for ; Thu, 20 May 2021 10:30:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237308AbhETKbf (ORCPT ); Thu, 20 May 2021 06:31:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:60392 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237049AbhETK3a (ORCPT ); Thu, 20 May 2021 06:29:30 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3BFF1613BD; Thu, 20 May 2021 09:51:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621504283; bh=z0SVMFHk3yE4rZHzrmmq8YhfU3p2fqebAw8LnhBWxdY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LqPVigPnpA04jofIk2MkvUbVyJLbQ71D1cWcQpxacGP6fnDOf3np2rLSGhG9WrKSk 3OysIRmgDvwWNVbcZXbplYMsltAnAgI0LbDXP2jYSY2seZ4i90TVMQAlStQa68recK J8RVnPjVZHT5vzF0K8RUmoNuBnBAZkTA3e6nGwRc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ingo Molnar , Mike Travis , Sasha Levin Subject: [PATCH 4.14 176/323] x86/platform/uv: Fix !KEXEC build failure Date: Thu, 20 May 2021 11:21:08 +0200 Message-Id: <20210520092126.147765620@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092120.115153432@linuxfoundation.org> References: <20210520092120.115153432@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ingo Molnar [ Upstream commit c2209ea55612efac75de0a58ef5f7394fae7fa0f ] When KEXEC is disabled, the UV build fails: arch/x86/platform/uv/uv_nmi.c:875:14: error: ‘uv_nmi_kexec_failed’ undeclared (first use in this function) Since uv_nmi_kexec_failed is only defined in the KEXEC_CORE #ifdef branch, this code cannot ever have been build tested: if (main) pr_err("UV: NMI kdump: KEXEC not supported in this kernel\n"); atomic_set(&uv_nmi_kexec_failed, 1); Nor is this use possible in uv_handle_nmi(): atomic_set(&uv_nmi_kexec_failed, 0); These bugs were introduced in this commit: d0a9964e9873: ("x86/platform/uv: Implement simple dump failover if kdump fails") Which added the uv_nmi_kexec_failed assignments to !KEXEC code, while making the definition KEXEC-only - apparently without testing the !KEXEC case. Instead of complicating the #ifdef maze, simplify the code by requiring X86_UV to depend on KEXEC_CORE. This pattern is present in other architectures as well. ( We'll remove the untested, 7 years old !KEXEC complications from the file in a separate commit. ) Fixes: d0a9964e9873: ("x86/platform/uv: Implement simple dump failover if kdump fails") Signed-off-by: Ingo Molnar Cc: Mike Travis Cc: linux-kernel@vger.kernel.org Signed-off-by: Sasha Levin --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c55870ac907e..64edc125c122 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -526,6 +526,7 @@ config X86_UV depends on X86_EXTENDED_PLATFORM depends on NUMA depends on EFI + depends on KEXEC_CORE depends on X86_X2APIC depends on PCI ---help---