vhost: add __init/__exit annotations to module init/exit funcs

Add missing __init/__exit annotations to module init/exit funcs.
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Message-Id: <20220917083803.21521-1-xiujianfeng@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

drivers/vhost/net.c

@@ -1781,7 +1781,7 @@ static struct miscdevice vhost_net_misc = {
 	.fops = &vhost_net_fops,
 };
 
-static int vhost_net_init(void)
+static int __init vhost_net_init(void)
 {
 	if (experimental_zcopytx)
 		vhost_net_enable_zcopy(VHOST_NET_VQ_TX);
@@ -1789,7 +1789,7 @@ static int vhost_net_init(void)
 }
 module_init(vhost_net_init);
 
-static void vhost_net_exit(void)
+static void __exit vhost_net_exit(void)
 {
 	misc_deregister(&vhost_net_misc);
 }