[PATCH] powerpc/rtas: Replace magic values with defines

[Tyrel Datwyler]

On 07/22/2015 09:56 AM, Thomas Huth wrote:
> rtas.h already has some nice #defines for RTAS return status
> codes - let's use them instead of hard-coded "magic" values!
> 
> Signed-off-by: Thomas Huth <thuth at redhat.com>

Reviewed-by: Tyrel Datwyler <tyreld at linux.vnet.ibm.com>

> ---
>  arch/powerpc/kernel/rtas.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
> index 7a488c1..10fb402 100644
> --- a/arch/powerpc/kernel/rtas.c
> +++ b/arch/powerpc/kernel/rtas.c
> @@ -478,8 +478,9 @@ unsigned int rtas_busy_delay_time(int status)
>  
>  	if (status == RTAS_BUSY) {
>  		ms = 1;
> -	} else if (status >= 9900 && status <= 9905) {
> -		order = status - 9900;
> +	} else if (status >= RTAS_EXTENDED_DELAY_MIN &&
> +		   status <= RTAS_EXTENDED_DELAY_MAX) {
> +		order = status - RTAS_EXTENDED_DELAY_MIN;
>  		for (ms = 1; order > 0; order--)
>  			ms *= 10;
>  	}
> @@ -641,7 +642,8 @@ int rtas_set_indicator_fast(int indicator, int index, int new_value)
>  
>  	rc = rtas_call(token, 3, 1, NULL, indicator, index, new_value);
>  
> -	WARN_ON(rc == -2 || (rc >= 9900 && rc <= 9905));
> +	WARN_ON(rc == RTAS_BUSY || (rc >= RTAS_EXTENDED_DELAY_MIN &&
> +				    rc <= RTAS_EXTENDED_DELAY_MAX));
>  
>  	if (rc < 0)
>  		return rtas_error_rc(rc);
>