[PATCH linux-next] ethtool: use strscpy() to instead of strncpy()

[<yang.yang29@zte.com.cn>]

From: Xu Panda <xu.panda@zte.com.cn>

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>
---
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 54faf0f2d1d8..b54f3706fb97 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -644,18 +644,15 @@ static void hns_nic_get_drvinfo(struct net_device *net_dev,
 {
 	struct hns_nic_priv *priv = netdev_priv(net_dev);

-	strncpy(drvinfo->version, HNAE_DRIVER_VERSION,
+	strscpy(drvinfo->version, HNAE_DRIVER_VERSION,
 		sizeof(drvinfo->version));
-	drvinfo->version[sizeof(drvinfo->version) - 1] = '\0';

-	strncpy(drvinfo->driver, HNAE_DRIVER_NAME, sizeof(drvinfo->driver));
-	drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
+	strscpy(drvinfo->driver, HNAE_DRIVER_NAME, sizeof(drvinfo->driver));

-	strncpy(drvinfo->bus_info, priv->dev->bus->name,
+	strscpy(drvinfo->bus_info, priv->dev->bus->name,
 		sizeof(drvinfo->bus_info));
-	drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0';

-	strncpy(drvinfo->fw_version, "N/A", ETHTOOL_FWVERS_LEN);
+	strscpy(drvinfo->fw_version, "N/A", ETHTOOL_FWVERS_LEN);
 	drvinfo->eedump_len = 0;
 }

-- 
2.15.2