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Commit 823038ca authored by Xin Long's avatar Xin Long Committed by David S. Miller
Browse files

dev_ioctl: add missing NETDEV_CHANGE_TX_QUEUE_LEN event notification 



When changing dev tx_queue_len via netlink or net-sysfs,
a NETDEV_CHANGE_TX_QUEUE_LEN event notification will be
called.

But dev_ioctl missed this event notification, which could
cause no userspace notification would be sent.

Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c019b516

net/core/dev_ioctl.c

+12 −1
Original line number Diff line number Diff line
@@ -303,7 +303,18 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) 
	case SIOCSIFTXQLEN:

		if (ifr->ifr_qlen < 0)

			return -EINVAL;

		if (dev->tx_queue_len ^ ifr->ifr_qlen) {

			unsigned int orig_len = dev->tx_queue_len;



			dev->tx_queue_len = ifr->ifr_qlen;

			err = call_netdevice_notifiers(

					NETDEV_CHANGE_TX_QUEUE_LEN, dev);

			err = notifier_to_errno(err);

			if (err) {

				dev->tx_queue_len = orig_len;

				return err;

			}

		}

		return 0;



	case SIOCSIFNAME: