mm/vmalloc.c:685: warning: No description found for return value of 'vm_area_map_pages'
mm/vmalloc.c:3467: warning: No description found for return value of 'vmap_pfn'
mm/vmalloc.c:685: warning: No description found for return value of 'vm_area_map_pages'
mm/vmalloc.c:3467: warning: No description found for return value of 'vmap_pfn'