linux-kernel - Re: [PATCH -next] rtc: pcf2127: Fix build error without CONFIG_WATCHDOG

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Message-ID: <36720fae-ef20-61d4-1d9d-421e7199a0eb@infradead.org>
Date:   Wed, 28 Aug 2019 10:18:56 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        YueHaibing <yuehaibing@...wei.com>
Cc:     a.zummo@...ertech.it, bruno.thomsen@...il.com, linux@...ck-us.net,
        linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] rtc: pcf2127: Fix build error without
 CONFIG_WATCHDOG_CORE

On 8/23/19 7:05 AM, Alexandre Belloni wrote:
> On 23/08/2019 20:45:53+0800, YueHaibing wrote:
>> If WATCHDOG_CORE is not set, build fails:
>>
>> drivers/rtc/rtc-pcf2127.o: In function `pcf2127_probe.isra.6':
>> drivers/rtc/rtc-pcf2127.c:478: undefined reference to `devm_watchdog_register_device'
>>
>> Add WATCHDOG_CORE Kconfig dependency to fix this.
>>
>> Reported-by: Hulk Robot <hulkci@...wei.com>
>> Fixes: bbc597561ce1 ("rtc: pcf2127: add watchdog feature support")
>> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
>> ---
>>  drivers/rtc/Kconfig | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
>> index 25af63d..9dce7dc 100644
>> --- a/drivers/rtc/Kconfig
>> +++ b/drivers/rtc/Kconfig
>> @@ -886,6 +886,8 @@ config RTC_DRV_DS3232_HWMON
>>  config RTC_DRV_PCF2127
>>  	tristate "NXP PCF2127"
>>  	depends on RTC_I2C_AND_SPI
>> +	depends on WATCHDOG
> 
> Definitively not, I fixed it that way:
> +       select WATCHDOG_CORE if WATCHDOG
> 
> 

No, that's not a fix.  The build error still happens with that patch applied.

-- 
~Randy