if (zone_bits & (__force int)__GFP_DMA32) res = ZONE_DMA32;
static inline int highest_zone(int zone_bits){	int res = ZONE_NORMAL;	if (zone_bits & (__force int)__GFP_HIGHMEM)		res = ZONE_HIGHMEM;	if (zone_bits & (__force int)__GFP_DMA)		res = ZONE_DMA;	return res;}