GFP_DMA32
if (order == 0 && (flags & GFP_DMA32) == 0) {
vm_paddr_t pmax = (flags & GFP_DMA32) ?
((flags & GFP_DMA32) == 0) ? -1UL : BUS_SPACE_MAXADDR_32BIT,
gfp_flags = GFP_USER | GFP_DMA32;