From: Nicholas Nunley Date: Wed, 6 Feb 2019 23:08:17 +0000 (-0800) Subject: i40e: don't allow changes to HW VLAN stripping on active port VLANs X-Git-Tag: v4.4.181~114 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ff310e6dae25b762884801b7b529679c8871608;p=thirdparty%2Fkernel%2Fstable.git i40e: don't allow changes to HW VLAN stripping on active port VLANs [ Upstream commit bfb0ebed53857cfc57f11c63fa3689940d71c1c8 ] Modifying the VLAN stripping options when a port VLAN is configured will break traffic for the VSI, and conceptually doesn't make sense, so don't allow this. Signed-off-by: Nicholas Nunley Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin --- diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 06b38f50980c5..22c43a776c6cd 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -2263,6 +2263,10 @@ void i40e_vlan_stripping_enable(struct i40e_vsi *vsi) struct i40e_vsi_context ctxt; i40e_status ret; + /* Don't modify stripping options if a port VLAN is active */ + if (vsi->info.pvid) + return; + if ((vsi->info.valid_sections & cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) && ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0)) @@ -2293,6 +2297,10 @@ void i40e_vlan_stripping_disable(struct i40e_vsi *vsi) struct i40e_vsi_context ctxt; i40e_status ret; + /* Don't modify stripping options if a port VLAN is active */ + if (vsi->info.pvid) + return; + if ((vsi->info.valid_sections & cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) && ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) ==