linux-kernel - Re: [PATCH] hwmon/sensors: fix SENSORS

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Date:	Tue, 07 Jan 2014 10:06:47 -0800
From:	Randy Dunlap <rdunlap@...radead.org>
To:	Jean Delvare <khali@...ux-fr.org>,
	Eduardo Valentin <eduardo.valentin@...com>
CC:	Guenter Roeck <linux@...ck-us.net>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Frodo Looijaard <frodol@....nl>, lm-sensors@...sensors.org,
	Zhang Rui <rui.zhang@...el.com>, linux-pm@...r.kernel.org
Subject: Re: [PATCH] hwmon/sensors: fix SENSORS_LM75 dependencies

On 01/07/14 06:21, Jean Delvare wrote:
> Hi Eduardo,
> 

> I suppose this works, however I believe there is value in allowing for
> modular building of as much code as possible.

ack, yes, please.

> I have an alternative proposal, which lets thermal be built as module,
> and hopefully also addresses the issue (I can't test...) The only
> drawback is that the same dependency must be added for every other
> hwmon driver which optionally uses THERMAL_OF.
> 
> From: Jean Delvare <khali@...ux-fr.org>
> 
> Based on an earlier attempt by Randy Dunlap.
> 
> Fix SENSORS_LM75 dependencies to eliminate build errors:
> 
> drivers/built-in.o: In function `lm75_remove':
> lm75.c:(.text+0x12bd8c): undefined reference to `thermal_zone_of_sensor_unregister'
> drivers/built-in.o: In function `lm75_probe':
> lm75.c:(.text+0x12c123): undefined reference to `thermal_zone_of_sensor_register'
> 
> Add depends on THERMAL since that is what provides the
> register/unregister functions above, but only if THERMAL_OF was
> selected as this is an optional feature of the driver.
> 
> Signed-off-by: Jean Delvare <khali@...ux-fr.org>
> Cc: Randy Dunlap <rdunlap@...radead.org>
> Cc: Eduardo Valentin <eduardo.valentin@...com>

works for me.

Acked-by: Randy Dunlap <rdunlap@...radead.org>

Thanks.

> ---
>  drivers/hwmon/Kconfig |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- linux-3.13-rc7.orig/drivers/hwmon/Kconfig	2014-01-07 09:01:24.812848091 +0100
> +++ linux-3.13-rc7/drivers/hwmon/Kconfig	2014-01-07 15:19:11.039472329 +0100
> @@ -650,6 +650,7 @@ config SENSORS_LM73
>  config SENSORS_LM75
>  	tristate "National Semiconductor LM75 and compatibles"
>  	depends on I2C
> +	depends on THERMAL || !THERMAL_OF
>  	help
>  	  If you say yes here you get support for one common type of
>  	  temperature sensor chip, with models including:
> 
> 


-- 
~Randy
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