pve-edge-kernel/patches/intel/igb/igb_4.15_mtu.patch

diff --git a/src/igb_main.c.orig b/src/igb_main.c
index 3ee1ec7..c8adf04 100644
--- a/src/igb_main.c.orig
+++ b/src/igb_main.c
@@ -5888,10 +5888,8 @@ static int igb_change_mtu(struct net_dev
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 		usleep_range(1000, 2000);
 
-#ifndef HAVE_NETDEVICE_MIN_MAX_MTU
 	/* igb_down has a dependency on max_frame_size */
 	adapter->max_frame_size = max_frame;
-#endif
 
 	if (netif_running(netdev))
 		igb_down(adapter);