Re: [PATCH 4/9] UML - Better diagnostics for broken configs

[Andrew Morton]

Jeff Dike <jdike@xxxxxxxxxxx> wrote:
>
> Produce a compile-time error if both MODE_SKAS and MODE_TT are disabled.
> 
> Signed-off-by: Jeff Dike <jdike@xxxxxxxxxxx>
> 
> Index: linux-2.6.15/arch/um/include/choose-mode.h
> ===================================================================
> --- linux-2.6.15.orig/arch/um/include/choose-mode.h	2005-08-28 19:41:01.000000000 -0400
> +++ linux-2.6.15/arch/um/include/choose-mode.h	2005-11-17 10:43:47.000000000 -0500
> @@ -23,6 +23,9 @@ static inline void *__choose_mode(void *
>  
>  #elif defined(UML_CONFIG_MODE_TT)
>  #define CHOOSE_MODE(tt, skas) (tt)
> +
> +#else
> +#error CONFIG_MODE_SKAS and CONFIG_MODE_TT are both disabled
>  #endif
>  
>  #define CHOOSE_MODE_PROC(tt, skas, args...) \

Is there no sane way to prevent this situation within Kconfig?
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