linux-kernel - Re: Build error with !CONFIG_SMP in v4.2-rc1 on arm multi_v7

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Date:	Fri, 10 Jul 2015 12:36:27 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Dave Gerlach <d-gerlach@...com>, linux-arm-msm@...r.kernel.org,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Lina Iyer <lina.iyer@...aro.org>, Kumar Gala <galak@...eaurora.org>
Subject: Re: Build error with !CONFIG_SMP in v4.2-rc1 on arm multi_v7_defconfig

On 07/10/2015 12:31 PM, Dave Gerlach wrote:
> 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?
>
>

CONFIG_QCOM_PM should select CONFIG_QCOM_SCM unconditionally.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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