linux-kernel - [PATCH AUTOSEL for 4.9 14/54] be2net: fix unicast list filling

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Date:   Wed, 22 Nov 2017 22:23:54 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Ivan Vecera <cera@...a.cz>,
        Sathya Perla <sathya.perla@...adcom.com>,
        Ajit Khaparde <ajit.khaparde@...adcom.com>,
        Sriharsha Basavapatna <sriharsha.basavapatna@...adcom.com>,
        Somnath Kotur <somnath.kotur@...adcom.com>,
        "David S . Miller" <davem@...emloft.net>,
        alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.9 14/54] be2net: fix unicast list filling

From: Ivan Vecera <cera@...a.cz>

[ Upstream commit 6052cd1af86f9833b6b0b60d5d4787c4a06d65ea ]

The adapter->pmac_id[0] item is used for primary MAC address but
this is not true for adapter->uc_list[0] as is assumed in
be_set_uc_list(). There are N UC addresses copied first from net_device
to adapter->uc_list[1..N] and then N UC addresses from
adapter->uc_list[0..N-1] are sent to HW. So the last UC address is never
stored into HW and address 00:00:00:00;00:00 (from uc_list[0]) is used
instead.

Cc: Sathya Perla <sathya.perla@...adcom.com>
Cc: Ajit Khaparde <ajit.khaparde@...adcom.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@...adcom.com>
Cc: Somnath Kotur <somnath.kotur@...adcom.com>
Fixes: b717241 be2net: replace polling with sleeping in the FW completion path
Signed-off-by: Ivan Vecera <cera@...a.cz>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index c82f22b244c1..fbb396b08495 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1719,9 +1719,8 @@ static void be_set_uc_list(struct be_adapter *adapter)
 	}
 
 	if (adapter->update_uc_list) {
-		i = 1; /* First slot is claimed by the Primary MAC */
-
 		/* cache the uc-list in adapter array */
+		i = 0;
 		netdev_for_each_uc_addr(ha, netdev) {
 			ether_addr_copy(adapter->uc_list[i].mac, ha->addr);
 			i++;
-- 
2.11.0