711 static bool vhost_overflow(u64 uaddr, u64 size)  in vhost_overflow()  argument
714 	return uaddr > ULONG_MAX || size > ULONG_MAX || uaddr > ULONG_MAX - size;  in vhost_overflow()
799 		void __user *uaddr = vhost_vq_meta_fetch(vq,  in vhost_copy_to_user()  local
803 		if (uaddr)  in vhost_copy_to_user()
804 			return __copy_to_user(uaddr, from, size);  in vhost_copy_to_user()
833 		void __user *uaddr = vhost_vq_meta_fetch(vq,  in vhost_copy_from_user()  local
838 		if (uaddr)  in vhost_copy_from_user()
839 			return __copy_from_user(to, uaddr, size);  in vhost_copy_from_user()
895 	void __user *uaddr = vhost_vq_meta_fetch(vq,  in __vhost_get_user()  local
897 	if (uaddr)  in __vhost_get_user()
898 		return uaddr;  in __vhost_get_user()
1085 static bool umem_access_ok(u64 uaddr, u64 size, int access)  in umem_access_ok()  argument
1087 	unsigned long a = uaddr;  in umem_access_ok()
1090 	if (vhost_overflow(uaddr, size))  in umem_access_ok()
1115 		if (!umem_access_ok(msg->uaddr, msg->size, msg->perm)) {  in vhost_process_iotlb_msg()
1122 					 msg->uaddr, msg->perm)) {  in vhost_process_iotlb_msg()