On Fri, 28 Oct 2011, Pekka Enberg wrote:
In preparation for unifying 32-bit and 64-bit zone_sizes_init() make sure
ZONE_DMA32 is wrapped in CONFIG_ZONE_DMA32.
Cc: Tejun Heo<tj@xxxxxxxxxx>
Cc: Yinghai Lu<yinghai@xxxxxxxxxx>
Cc: H. Peter Anvin<hpa@xxxxxxxxxxxxxxx>
Cc: David Rientjes<rientjes@xxxxxxxxxx>
Signed-off-by: Pekka Enberg<penberg@xxxxxxxxxx>
Acked-by: David Rientjes<rientjes@xxxxxxxxxx>
Adding Arun Sharma to the cc, he was interested in disabling
CONFIG_ZONE_DMA32 and I believe carries this patch internally (as we do).