linux-kernel - Re: [PATCH] soc: imx: Fix build error without CONFIG_SOC

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Date:   Wed, 24 Apr 2019 16:47:27 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     Leonard Crestez <leonard.crestez@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Abel Vesa <abel.vesa@....com>
CC:     "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "l.stach@...gutronix.de" <l.stach@...gutronix.de>,
        Aisheng Dong <aisheng.dong@....com>,
        Anson Huang <anson.huang@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] soc: imx: Fix build error without CONFIG_SOC_BUS

On 2019/4/24 16:11, Leonard Crestez wrote:
> On 4/24/2019 11:00 AM, Yue Haibing wrote:
>> From: YueHaibing <yuehaibing@...wei.com>
>>
>> During randconfig builds, I occasionally run into an invalid configuration
>>
>> drivers/soc/imx/soc-imx8.o: In function `imx8_soc_init':
>> soc-imx8.c:(.init.text+0x144): undefined reference to `soc_device_register'
>>
>> while CONFIG_SOC_BUS is not set, the building failed like this. This patch
>> selects SOC_BUS to fix it.
>>
>> diff --git a/drivers/soc/imx/Kconfig b/drivers/soc/imx/Kconfig
>> @@ -5,6 +5,7 @@ config IMX_GPCV2_PM_DOMAINS
>>   	depends on ARCH_MXC || (COMPILE_TEST && OF)
>>   	depends on PM
>>   	select PM_GENERIC_DOMAINS
>> +	select SOC_BUS
>>   	default y if SOC_IMX7D
> 
> You should "select SOC_BUS" from "config ARCH_MXC" in arm64 
> Kconfig.platforms, not from a power domain implementation.
> 
> Your patch works because arm64 ARCH_MXC currently does "select 
> IMX_GPCV2_PM_DOMAINS" but it's silly to use this intermediary.

Yes, you are right, thanks!

> 
> --
> Regards,
> Leonard
> 
>