>I'm wondering how distro kernels will deal with that since some >platforms will need the ZONE_DMA32 and some others will break when >enabled as you have shown. I agree platforms with no ZONE_DMA32 is non-portable, to address this I will add dependency on NONPORTABLE and re-submit shortly. Thanks for pointing that. >Is there a way to make it optional at runtime instead? Unfortunately no, or at least I see no way to do so Thanks, Vladimir
