netdev - [PATCH net v2] ibmvnic: save changed mac address to adapter->mac

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Message-Id: <20201020223919.46106-1-ljp@linux.ibm.com>
Date:   Tue, 20 Oct 2020 17:39:19 -0500
From:   Lijun Pan <ljp@...ux.ibm.com>
To:     netdev@...r.kernel.org
Cc:     Lijun Pan <ljp@...ux.ibm.com>
Subject: [PATCH net v2] ibmvnic: save changed mac address to adapter->mac_addr

After mac address change request completes successfully, the new mac
address need to be saved to adapter->mac_addr as well as
netdev->dev_addr. Otherwise, adapter->mac_addr still holds old
data.

Fixes: 62740e97881c ("net/ibmvnic: Update MAC address settings after adapter reset")
Signed-off-by: Lijun Pan <ljp@...ux.ibm.com>
---
v2: add a note to differentiate crq->change_mac_addr
    and crq->change_mac_addr.rsp.
    add a space in "Fixes" line

 drivers/net/ethernet/ibm/ibmvnic.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 1b702a43a5d0..4dd3625a4fbc 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -4194,8 +4194,13 @@ static int handle_change_mac_rsp(union ibmvnic_crq *crq,
 		dev_err(dev, "Error %ld in CHANGE_MAC_ADDR_RSP\n", rc);
 		goto out;
 	}
+	/* crq->change_mac_addr.mac_addr is the requested one
+	 * crq->change_mac_addr_rsp.mac_addr is the returned valid one.
+	 */
 	ether_addr_copy(netdev->dev_addr,
 			&crq->change_mac_addr_rsp.mac_addr[0]);
+	ether_addr_copy(adapter->mac_addr,
+			&crq->change_mac_addr_rsp.mac_addr[0]);
 out:
 	complete(&adapter->fw_done);
 	return rc;
-- 
2.23.0