On Fri, 2014-03-07 at 18:10 -0800, beh...@converseincode.com wrote:
> This code makes a compile time type check that is optimized away. Clang
> complains that it generates an unused function.
[]
> diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
[]
> @@ -346,7 +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) { return(p); }
> + static inline __always_unused type *__check_##name(void) { return(p); }
Perhaps __maybe_unused ?
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