[PATCH net v2] net/tun: Call netdev notifiers
From: Martin Schiller <ms@dev.tdt.de>
Date: 2020-11-16 10:03:07
Also in:
lkml
Subsystem:
networking drivers, the rest, tun/tap driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Willem de Bruijn, Jason Wang
Call netdev notifiers before and after changing the device type. Signed-off-by: Martin Schiller <ms@dev.tdt.de> --- Change from v1: fix 'subject_prefix' and 'checkpatch' warnings --- drivers/net/tun.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index be69d272052f..f3b337d45ad0 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c@@ -3124,9 +3124,13 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, "Linktype set failed because interface is up\n"); ret = -EBUSY; } else { + call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, + tun->dev); tun->dev->type = (int) arg; netif_info(tun, drv, tun->dev, "linktype set to %d\n", tun->dev->type); + call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, + tun->dev); ret = 0; } break;
--
2.20.1