From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Gerlach Subject: Build error with !CONFIG_SMP in v4.2-rc1 on arm multi_v7_defconfig Date: Fri, 10 Jul 2015 14:31:16 -0500 Message-ID: <55A01D84.8070701@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from bear.ext.ti.com ([192.94.94.41]:37976 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932564AbbGJTcC (ORCPT ); Fri, 10 Jul 2015 15:32:02 -0400 Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: linux-arm-msm@vger.kernel.org, Linux ARM Kernel List , "linux-kernel@vger.kernel.org" Cc: Lina Iyer , Kumar Gala , sboyd@codeaurora.org Hello, I am seeing the following error when building v4.2-rc1 for arm with multi_v7_defconfig with CONFIG_SMP=n: LINK vmlinux LD vmlinux.o MODPOST vmlinux.o GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o drivers/built-in.o: In function `qcom_pm_collapse': :(.text+0xaf44c): undefined reference to `qcom_scm_cpu_power_down' drivers/built-in.o: In function `qcom_cpuidle_init': :(.init.text+0x9508): undefined reference to `qcom_scm_set_warm_boot_addr' make: *** [vmlinux] Error 1 It appears the calling functions in drivers/soc/qcom/spm.c get included by CONFIG_QCOM_PM which is part of multi_v7_defconfig but the missing functions from drivers/firmware/qcom_scm.c only get included by CONFIG_QCOM_SCM if SMP is selected. I am not sure if the correct approach is to remove CONFIG_QCOM_PM from multi_v7_defconfig or to remove 'if SMP' from CONFIG_QCOM_SCM, or something else entirely. Thoughts? Regards, Dave