[PATCH 1/2] powerpc: mm: use macro PGTABLE_EADDR_SIZE instead of digital

[Aneesh Kumar K.V]

Liu Ping Fan <kernelfans at gmail.com> writes:

> In case of extending the eaddr in future, use this macro
> PGTABLE_EADDR_SIZE to ease the maintenance of the code.
>
> Signed-off-by: Liu Ping Fan <pingfank at linux.vnet.ibm.com>

Reviewed-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>

> ---
>  arch/powerpc/mm/slb_low.S | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
> index 17aa6df..e0b3cf4 100644
> --- a/arch/powerpc/mm/slb_low.S
> +++ b/arch/powerpc/mm/slb_low.S
> @@ -35,7 +35,7 @@ _GLOBAL(slb_allocate_realmode)
>  	 * check for bad kernel/user address
>  	 * (ea & ~REGION_MASK) >= PGTABLE_RANGE
>  	 */
> -	rldicr. r9,r3,4,(63 - 46 - 4)
> +	rldicr. r9,r3,4,(63 - PGTABLE_EADDR_SIZE - 4)
>  	bne-	8f
>
>  	srdi	r9,r3,60		/* get region */
> -- 
> 1.8.1.4
>
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