linux-kernel - Re: [PATCH 3/3] thermal: allow u8500-thermal driver to be a module

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Date:	Fri, 5 Feb 2016 15:44:42 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	spear-devel <spear-devel@...t.st.com>,
	Lee Jones <lee.jones@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] thermal: allow u8500-thermal driver to be a module

On Mon, Jan 25, 2016 at 5:44 PM, Arnd Bergmann <arnd@...db.de> wrote:

> When the thermal subsystem is a loadable module, the u8500 driver
> fails to build:
>
> drivers/thermal/built-in.o: In function `db8500_thermal_probe':
> db8500_thermal.c:(.text+0x96c): undefined reference to `thermal_zone_device_register'
> drivers/thermal/built-in.o: In function `db8500_thermal_work':
> db8500_thermal.c:(.text+0xab4): undefined reference to `thermal_zone_device_update'
>
> This changes the symbol to a tristate, so Kconfig can track the
> dependency correctly.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij