linux-kernel - Re: [PATCH] module: LLVMLinux: Remove unused function warning from __param

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Date:	Fri, 07 Mar 2014 23:56:04 +0100
From:	"PaX Team" <pageexec@...email.hu>
To:	khali@...ux-fr.org, rostedt@...dmis.org, behanw@...verseincode.com
CC:	rusty@...tcorp.com.au, linux-kernel@...r.kernel.org,
	dwmw2@...radead.org, Mark Charlebois <charlebm@...il.com>,
	Behan Webster <behanw@...verseincode.com>
Subject: Re: [PATCH] module: LLVMLinux: Remove unused function warning from __param_check macro

On 7 Mar 2014 at 11:08, behanw@...verseincode.com wrote:

> diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
> index c3eb102..5ce1f67 100644
> --- a/include/linux/moduleparam.h
> +++ b/include/linux/moduleparam.h
> @@ -346,6 +346,7 @@ static inline void destroy_params(const struct kernel_param *params,
>  /* The macros to do compile-time type checking stolen from Jakub
>     Jelinek, who IIRC came up with this idea for the 2.4 module init code. */
>  #define __param_check(name, p, type) \
> +	static inline type *__check_##name(void) __attribute__ ((unused)); \
>  	static inline type *__check_##name(void) { return(p); }

why can't you have the attr on the definition itself:

static inline __unused type *__check_##name(void) { return(p); }



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