netdev - [PATCH net 3/3] iavf: Fix VF driver counting VLAN 0 filters

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Message-Id: <20221108235116.3522941-4-anthony.l.nguyen@intel.com>
Date:   Tue,  8 Nov 2022 15:51:16 -0800
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com
Cc:     Michal Jaron <michalx.jaron@...el.com>, netdev@...r.kernel.org,
        anthony.l.nguyen@...el.com,
        Przemyslaw Patynowski <przemyslawx.patynowski@...el.com>,
        Kamil Maziarz <kamil.maziarz@...el.com>,
        Konrad Jankowski <konrad0.jankowski@...el.com>
Subject: [PATCH net 3/3] iavf: Fix VF driver counting VLAN 0 filters

From: Michal Jaron <michalx.jaron@...el.com>

VF driver mistakenly counts VLAN 0 filters, when no PF driver
counts them.
Do not count VLAN 0 filters, when VLAN_V2 is engaged.
Counting those filters in, will affect filters size by -1, when
sending batched VLAN addition message.

Fixes: 968996c070ef ("iavf: Fix VLAN_V2 addition/rejection")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@...el.com>
Signed-off-by: Michal Jaron <michalx.jaron@...el.com>
Signed-off-by: Kamil Maziarz <kamil.maziarz@...el.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/iavf/iavf_virtchnl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
index 5a9e6563923e..24a701fd140e 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
@@ -2438,6 +2438,8 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter,
 		list_for_each_entry(f, &adapter->vlan_filter_list, list) {
 			if (f->is_new_vlan) {
 				f->is_new_vlan = false;
+				if (!f->vlan.vid)
+					continue;
 				if (f->vlan.tpid == ETH_P_8021Q)
 					set_bit(f->vlan.vid,
 						adapter->vsi.active_cvlans);
-- 
2.35.1