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Message-ID: <20140509111513.GT5767@lee--X1>
Date: Fri, 9 May 2014 12:15:13 +0100
From: Lee Jones <lee.jones@...aro.org>
To: Tushar Behera <tushar.behera@...aro.org>
Cc: linux-kernel@...r.kernel.org, sameo@...ux.intel.com,
peter.chen@...escale.com
Subject: Re: [PATCH] mfd: syscon: Include linux/err.h to fix build error
On Fri, 09 May 2014, Tushar Behera wrote:
> commit df73de9b0d412 ("mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON
> is not enabled") introduced fallbacks for APIs, but missed out on adding
> the header file. This would work only if linux/err.h is also included
> in the source code from where this file is included. It would be better
> to include linux/err.h in file to remove possible build errors.
>
> Without this patch, we get following and similar build errors if this
> header file is included in some source file and CONFIG_MFD_SYSCON is
> not enabled.
>
> include/linux/mfd/syscon.h: In function ‘syscon_node_to_regmap’:
> include/linux/mfd/syscon.h:30:2: error: implicit declaration of function ‘ERR_PTR’ [-Werror=implicit-function-declaration]
> return ERR_PTR(-ENOSYS);
> ^
> include/linux/mfd/syscon.h:30:18: error: ‘ENOSYS’ undeclared (first use in this function)
> return ERR_PTR(-ENOSYS);
> ^
>
> Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
> ---
> include/linux/mfd/syscon.h | 2 ++
> 1 file changed, 2 insertions(+)
Applied, thanks.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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