[PATCH 4.9 66/78] enic: do not call enic_change_mtu in enic_probe

From: Greg Kroah-Hartman
Date: Thu Sep 13 2018 - 09:40:56 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Govindarajulu Varadarajan <gvaradar@xxxxxxxxx>

commit cb5c6568867325f9905e80c96531d963bec8e5ea upstream.

In commit ab123fe071c9 ("enic: handle mtu change for vf properly")
ASSERT_RTNL() is added to _enic_change_mtu() to prevent it from being
called without rtnl held. enic_probe() calls enic_change_mtu()
without rtnl held. At this point netdev is not registered yet.
Remove call to enic_change_mtu and assign the mtu to netdev->mtu.

Fixes: ab123fe071c9 ("enic: handle mtu change for vf properly")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Ben Hutchings <ben.hutchings@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/net/ethernet/cisco/enic/enic_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -2681,7 +2681,6 @@ static int enic_probe(struct pci_dev *pd
*/

enic->port_mtu = enic->config.mtu;
- (void)enic_change_mtu(netdev, enic->port_mtu);

err = enic_set_mac_addr(netdev, enic->mac_addr);
if (err) {
@@ -2731,6 +2730,7 @@ static int enic_probe(struct pci_dev *pd
netdev->features |= NETIF_F_HIGHDMA;

netdev->priv_flags |= IFF_UNICAST_FLT;
+ netdev->mtu = enic->port_mtu;

err = register_netdev(netdev);
if (err) {