net/tun: Call type change netdev notifiers (8e1e33ff) · Commits · 戴 / test

Call netdev notifiers before and after changing the device type. Signed-off-by:

drivers/net/tun.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -3071,10 +3071,19 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
		"Linktype set failed because interface is up\n");
		ret = -EBUSY;
		} else {
		ret = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE,
		tun->dev);
		ret = notifier_to_errno(ret);
		if (ret) {
		netif_info(tun, drv, tun->dev,
		"Refused to change device type\n");
		break;
		}
		tun->dev->type = (int) arg;
		netif_info(tun, drv, tun->dev, "linktype set to %d\n",
		tun->dev->type);
		ret = 0;
		call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE,
		tun->dev);
		}
		break;