From 85927ec1b369c880407aa82eba70d49c04c35062 Mon Sep 17 00:00:00 2001 From: Mitch Williams Date: Mon, 27 Apr 2015 14:57:10 -0400 Subject: [PATCH] i40e: ignore duplicate port VLAN requests If user attempts to set a port VLAN on a VF that already has the same port VLAN configured, the driver will go through a completely unnecessary flurry of filter removals and filter adds. Just check for this condition and return success instead of doing a bunch of busywork. Change-ID: Ia1a9e83e6ed48b3f4658bc20dfc6af0cf525d54a Signed-off-by: Mitch Williams Tested-by: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 23f95cdbdfcc..433e80320eea 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -2088,6 +2088,10 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, goto error_pvid; } + if (vsi->info.pvid == (vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT))) + /* duplicate request, so just return success */ + goto error_pvid; + if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) { dev_err(&pf->pdev->dev, "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",