netdev - [net-next 08/15] ice: Do not bail out when filter already exists

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Date:   Tue, 26 Mar 2019 20:58:46 -0700
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Preethi Banala <preethi.banala@...el.com>, netdev@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com,
        Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>,
        Andrew Bowers <andrewx.bowers@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 08/15] ice: Do not bail out when filter already exists

From: Preethi Banala <preethi.banala@...el.com>

If filter already exists, do not go through error path flow but instead
continue to process rest of the function. Hence have an appropriate check
after adding MAC filters.

Signed-off-by: Preethi Banala <preethi.banala@...el.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 54b1db4db7d4..514aa31db8a6 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -260,7 +260,11 @@ static int ice_vsi_sync_fltr(struct ice_vsi *vsi)
 	/* Add mac addresses in the sync list */
 	status = ice_add_mac(hw, &vsi->tmp_sync_list);
 	ice_free_fltr_list(dev, &vsi->tmp_sync_list);
-	if (status) {
+	/* If filter is added successfully or already exists, do not go into
+	 * 'if' condition and report it as error. Instead continue processing
+	 * rest of the function.
+	 */
+	if (status && status != ICE_ERR_ALREADY_EXISTS) {
 		netdev_err(netdev, "Failed to add MAC filters\n");
 		/* If there is no more space for new umac filters, vsi
 		 * should go into promiscuous mode. There should be some
-- 
2.20.1