From: Jason Xing kernelxing@tencent.com
commit ce45ffb815e8e238f05de1630be3969b6bb15e4e upstream.
Include the second VLAN HLEN into account when computing the maximum MTU size as other drivers do.
Fixes: 0c8493d90b6b ("i40e: add XDP support for pass and drop actions") Signed-off-by: Jason Xing kernelxing@tencent.com Reviewed-by: Alexander Duyck alexanderduyck@fb.com Tested-by: Chandan Kumar Rout chandanx.rout@intel.com (A Contingent Worker at Intel) Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -2921,7 +2921,7 @@ static int i40e_change_mtu(struct net_de struct i40e_pf *pf = vsi->back;
if (i40e_enabled_xdp_vsi(vsi)) { - int frame_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; + int frame_size = new_mtu + I40E_PACKET_HDR_PAD;
if (frame_size > i40e_max_xdp_frame_size(vsi)) return -EINVAL;