net/mlx5e: Switch to kmemdup() when allocate dev_addr

Use kmemdup() helper instead of open-coding to
simplify the code when allocate dev_addr.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/20220914140100.3795545-2-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c
index 100e03e..ea36207 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/macsec.c
@@ -931,14 +931,13 @@ static int mlx5e_macsec_add_secy(struct macsec_context *ctx)
                goto out;
        }
 
-       macsec_device->dev_addr = kzalloc(dev->addr_len, GFP_KERNEL);
+       macsec_device->dev_addr = kmemdup(dev->dev_addr, dev->addr_len, GFP_KERNEL);
        if (!macsec_device->dev_addr) {
                kfree(macsec_device);
                err = -ENOMEM;
                goto out;
        }
 
-       memcpy(macsec_device->dev_addr, dev->dev_addr, dev->addr_len);
        macsec_device->netdev = dev;
 
        INIT_LIST_HEAD_RCU(&macsec_device->macsec_rx_sc_list_head);