Re: [PATCH 2/4] DRBG: cleanup of preprocessor macros

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Hi Stephan,

On Sat, 28 Jun 2014 22:00:07 +0200 Stephan Mueller <smueller@xxxxxxxxxx> wrote:
>
> diff --git a/crypto/drbg.c b/crypto/drbg.c
> index 6679a26..03a230e 100644
> --- a/crypto/drbg.c
> +++ b/crypto/drbg.c
> @@ -102,8 +102,13 @@
>  #if !defined(CONFIG_CRYPTO_DRBG_HASH) && \
>  	!defined(CONFIG_CRYPTO_DRBG_HMAC) && \
>  	!defined(CONFIG_CRYPTO_DRBG_CTR)
> -#warning "The DRBG code is useless without compiling at least one DRBG type"
> -#endif
> +#define CRYPTO_DRBG_NONE_STRING "none "
> +static int __init drbg_init(void)
> +{
> +	pr_warn("DRBG: no DRBG core was compiled!\n");
> +	return -EFAULT;
> +}
> +#else

Wouldn't this be better handled by Kconfig so that we don't even try to
build this unless one of the required core modules is chosen?

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx

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