[PATCH 1/6] qtnfmac: implement net_device_ops callback to set MAC address

[Sergey Matyukevich]

From: Igor Mitsyanko <igor.mitsyanko...@quantenna.com>

Implement net_device_ops::ndo_set_mac_address callback to allow for
setting interface MAC address. Implementation is done through existing
CHANGE_INTF firmware command. All validation is to be done by firmware.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko...@quantenna.com>
---
 drivers/net/wireless/quantenna/qtnfmac/core.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c 
b/drivers/net/wireless/quantenna/qtnfmac/core.c
index a6a450984f9a..c318340e1bd5 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/core.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.c
@@ -179,6 +179,30 @@ static void qtnf_netdev_tx_timeout(struct net_device *ndev)
        }
 }
 
+static int qtnf_netdev_set_mac_address(struct net_device *ndev, void *addr)
+{
+       struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+       struct sockaddr *sa = addr;
+       int ret;
+       unsigned char old_addr[ETH_ALEN];
+
+       memcpy(old_addr, sa->sa_data, sizeof(old_addr));
+
+       ret = eth_mac_addr(ndev, sa);
+       if (ret)
+               return ret;
+
+       qtnf_scan_done(vif->mac, true);
+
+       ret = qtnf_cmd_send_change_intf_type(vif, vif->wdev.iftype,
+                                            sa->sa_data);
+
+       if (ret)
+               memcpy(ndev->dev_addr, old_addr, ETH_ALEN);
+
+       return ret;
+}
+
 /* Network device ops handlers */
 const struct net_device_ops qtnf_netdev_ops = {
        .ndo_open = qtnf_netdev_open,
@@ -186,6 +210,7 @@ const struct net_device_ops qtnf_netdev_ops = {
        .ndo_start_xmit = qtnf_netdev_hard_start_xmit,
        .ndo_tx_timeout = qtnf_netdev_tx_timeout,
        .ndo_get_stats64 = qtnf_netdev_get_stats64,
+       .ndo_set_mac_address = qtnf_netdev_set_mac_address,
 };
 
 static int qtnf_mac_init_single_band(struct wiphy *wiphy,
-- 
2.11.0