| Message ID | 1524141752-25789-4-git-send-email-alexey.kodanev@oracle.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
| Series | geneve: verify user specified MTU or adjust with a lower device | expand |
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index b650f84..ae649f6 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -942,11 +942,10 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev) static int geneve_change_mtu(struct net_device *dev, int new_mtu) { - /* Only possible if called internally, ndo_change_mtu path's new_mtu - * is guaranteed to be between dev->min_mtu and dev->max_mtu. - */ if (new_mtu > dev->max_mtu) new_mtu = dev->max_mtu; + else if (new_mtu < dev->min_mtu) + new_mtu = dev->min_mtu; dev->mtu = new_mtu; return 0;
geneve_change_mtu() will be used not only as ndo_change_mtu() callback, but also to verify a user specified MTU on a new link creation in the next patch. Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> --- drivers/net/geneve.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)