--- Gnu-Mach/device/ds_routines.c	2020/09/02 04:50:08	1.1.1.6
+++ Gnu-Mach/device/ds_routines.c	2020/09/02 04:52:14	1.1.1.7
@@ -140,7 +140,7 @@ ds_device_open (ipc_port_t open_port, ip
 		mach_msg_type_name_t reply_port_type, dev_mode_t mode,
 		char *name, device_t *devp)
 {
-  int i;
+  unsigned i;
   io_return_t err;
 
   /* Open must be called on the master device port.  */
@@ -1554,7 +1554,7 @@ void mach_device_init(void)
 	device_io_map->wait_for_space = TRUE;
 
 	kmem_cache_init(&io_inband_cache, "io_buf_ptr_inband",
-			sizeof(io_buf_ptr_inband_t), 0, NULL, NULL, NULL, 0);
+			sizeof(io_buf_ptr_inband_t), 0, NULL, 0);
 
 	mach_device_trap_init();
 }
@@ -1598,7 +1598,7 @@ static void
 mach_device_trap_init(void)
 {
 	kmem_cache_init(&io_trap_cache, "io_req", IOTRAP_REQSIZE, 0,
-			NULL, NULL, NULL, 0);
+			NULL, 0);
 }
 
 /*
@@ -1715,7 +1715,7 @@ device_writev_trap (mach_device_t device
 	io_return_t result;
 	io_buf_vec_t	stack_iovec[16]; /* XXX */
 	vm_size_t data_count;
-	int i;
+	unsigned i;
 
 	if (device->state != DEV_STATE_OPEN)
 		return (D_NO_SUCH_DEVICE);