From: Brett Creeley <brett.creeley@intel.com>
Date: Fri, 15 May 2020 17:42:13 -0700
Subject: ice: Don't allow VLAN stripping change when pvid set
Patch-mainline: v5.8-rc1
Git-commit: 1960827570c7ed83fb0725debf856b06f46e1a77
References: jsc#SLE-12878

Currently, if the PVID is set in the VLAN handling section of the VSI
context the driver still allows VLAN stripping to be enabled/disabled.
VLAN stripping should only be modifiable when the PVID is not set. Fix
this by preventing VLAN stripping modification when PVID is set.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_lib.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -1812,6 +1812,12 @@ int ice_vsi_manage_vlan_stripping(struct
 	enum ice_status status;
 	int ret = 0;
 
+	/* do not allow modifying VLAN stripping when a port VLAN is configured
+	 * on this VSI
+	 */
+	if (vsi->info.pvid)
+		return 0;
+
 	ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
 	if (!ctxt)
 		return -ENOMEM;