* [PATCH net v2] net/tun: Call netdev notifiers
@ 2020-11-16 9:27 Martin Schiller
0 siblings, 0 replies; only message in thread
From: Martin Schiller @ 2020-11-16 9:27 UTC (permalink / raw)
To: davem, kuba; +Cc: netdev, linux-kernel, Martin Schiller
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
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