__check_region 141 include/linux/ioport.h #define check_mem_region(start,n) __check_region(&iomem_resource, (start), (n)) __check_region 144 include/linux/ioport.h extern int __check_region(struct resource *, resource_size_t, resource_size_t); __check_region 151 include/linux/ioport.h return __check_region(&ioport_resource, s, n);