linux-kernel - Re: [PATCH] iio: adc: Fix build error of missing devm_ioremap

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Date:	Sat, 5 Mar 2016 18:49:27 +0000
From:	Jonathan Cameron <jic23@...nel.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Hartmut Knaack <knaack.h@....de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald <pmeerw@...erw.net>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] iio: adc: Fix build error of missing
 devm_ioremap_resource on UM

On 04/03/16 01:05, Krzysztof Kozlowski wrote:
> The devres.o gets linked if HAS_IOMEM is present so on ARCH=um
> allyesconfig (COMPILE_TEST) failed with:
> 
> drivers/built-in.o: In function `at91_adc_probe':
> at91-sama5d2_adc.c:(.text+0x48f548): undefined reference to `devm_ioremap_resource'
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Applied to the togreg branch of iio.git - initially pushed out as testing for
the autobuilders to play with it.  I may switch this over to a fixes branch
and send it on post merge window (if the merge window starts before my next
pull request).

Jonathan
> ---
>  drivers/iio/adc/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
> index af4aea7b20f9..82c718c515a0 100644
> --- a/drivers/iio/adc/Kconfig
> +++ b/drivers/iio/adc/Kconfig
> @@ -134,6 +134,7 @@ config AT91_ADC
>  config AT91_SAMA5D2_ADC
>  	tristate "Atmel AT91 SAMA5D2 ADC"
>  	depends on ARCH_AT91 || COMPILE_TEST
> +	depends on HAS_IOMEM
>  	help
>  	  Say yes here to build support for Atmel SAMA5D2 ADC which is
>  	  available on SAMA5D2 SoC family.
>