net: hns3: use strscpy() to instead of strncpy()

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL terminated strings.
Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/202212091538591375035@zte.com.cnSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c

@@ -639,13 +639,11 @@ static void hns3_get_drvinfo(struct net_device *netdev,
 		return;
 	}
 
-	strncpy(drvinfo->driver, dev_driver_string(&h->pdev->dev),
+	strscpy(drvinfo->driver, dev_driver_string(&h->pdev->dev),
 		sizeof(drvinfo->driver));
-	drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
 
-	strncpy(drvinfo->bus_info, pci_name(h->pdev),
+	strscpy(drvinfo->bus_info, pci_name(h->pdev),
 		sizeof(drvinfo->bus_info));
-	drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0';
 
 	fw_version = priv->ae_handle->ae_algo->ops->get_fw_version(h);