From patchwork Thu May 20 09:20:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 445687 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 A365EC43460 for ; Thu, 20 May 2021 10:04:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 80C1861D19 for ; Thu, 20 May 2021 10:04:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235233AbhETKFv (ORCPT ); Thu, 20 May 2021 06:05:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:36564 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235210AbhETKDX (ORCPT ); Thu, 20 May 2021 06:03:23 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5CEDC6142C; Thu, 20 May 2021 09:40:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621503603; bh=L23xSBOAnyAlQcFOEdPmVvG72roz3qiD9SDhEE6UNYE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fBYeWjIR1Q6iZhukQeaIXSYcAexZzqGZRV5M+dHRsPp0yGxs7jVgBOYZ0lgS6sR7y bYv11wDKuYC6Qblz3PCdm+D4rDWHY4fQed4E5+hHlPcvS5Nwd5IxdROFhUaljBZOHB xgAtGuz9hGKWleoXBUuzkeXTOCg7P/XC4sygal8A= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Chen Huang , Michael Ellerman , Sasha Levin Subject: [PATCH 4.19 252/425] powerpc: Fix HAVE_HARDLOCKUP_DETECTOR_ARCH build configuration Date: Thu, 20 May 2021 11:20:21 +0200 Message-Id: <20210520092139.694449821@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092131.308959589@linuxfoundation.org> References: <20210520092131.308959589@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Chen Huang [ Upstream commit 4fe529449d85e78972fa327999961ecc83a0b6db ] When compiling the powerpc with the SMP disabled, it shows the issue: arch/powerpc/kernel/watchdog.c: In function ‘watchdog_smp_panic’: arch/powerpc/kernel/watchdog.c:177:4: error: implicit declaration of function ‘smp_send_nmi_ipi’; did you mean ‘smp_send_stop’? [-Werror=implicit-function-declaration] 177 | smp_send_nmi_ipi(c, wd_lockup_ipi, 1000000); | ^~~~~~~~~~~~~~~~ | smp_send_stop cc1: all warnings being treated as errors make[2]: *** [scripts/Makefile.build:273: arch/powerpc/kernel/watchdog.o] Error 1 make[1]: *** [scripts/Makefile.build:534: arch/powerpc/kernel] Error 2 make: *** [Makefile:1980: arch/powerpc] Error 2 make: *** Waiting for unfinished jobs.... We found that powerpc used ipi to implement hardlockup watchdog, so the HAVE_HARDLOCKUP_DETECTOR_ARCH should depend on the SMP. Fixes: 2104180a5369 ("powerpc/64s: implement arch-specific hardlockup watchdog") Reported-by: Hulk Robot Signed-off-by: Chen Huang Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210327094900.938555-1-chenhuang5@huawei.com Signed-off-by: Sasha Levin --- arch/powerpc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 6dd2a14e1ebc..f0e09d5f0bed 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -208,7 +208,7 @@ config PPC select HAVE_MEMBLOCK_NODE_MAP select HAVE_MOD_ARCH_SPECIFIC select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S) - select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S) + select HAVE_HARDLOCKUP_DETECTOR_ARCH if PPC64 && PPC_BOOK3S && SMP select HAVE_OPROFILE select HAVE_OPTPROBES if PPC64 select HAVE_PERF_EVENTS