Hello.

On 07/15/2015 04:30 AM, Jeff Kirsher wrote:

From: Mitch Williams <mitch.a.willi...@intel.com>

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 <mitch.a.willi...@intel.com>
Tested-by: Jim Young <james.m.yo...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
---
  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 23f95cd..433e803 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)))

Parens around | not necessary (strictly speaking, around << too but gcc may have another opinion and warn about the parens).

[...]

MBR, Sergei

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