[PATCH] examples/kni: clear warning about discarding const qualifier

[Ke Zhang <ke1x.zhang@intel.com>]

The warning info:
warning: passing argument 1 of ‘memcpy’ discards ‘const’
qualifier from pointer target type

Compulsory type conversion to clear compile warning.

Signed-off-by: Ke Zhang <ke1x.zhang@intel.com>
---
 kernel/linux/kni/kni_misc.c | 4 ++--
 kernel/linux/kni/kni_net.c  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/linux/kni/kni_misc.c b/kernel/linux/kni/kni_misc.c
index 780187d8bf..6f9dab4732 100644
--- a/kernel/linux/kni/kni_misc.c
+++ b/kernel/linux/kni/kni_misc.c
@@ -403,10 +403,10 @@ kni_ioctl_create(struct net *net, uint32_t ioctl_num,
 
 	/* if user has provided a valid mac address */
 	if (is_valid_ether_addr(dev_info.mac_addr))
-		memcpy(net_dev->dev_addr, dev_info.mac_addr, ETH_ALEN);
+		memcpy((unsigned char *)net_dev->dev_addr, dev_info.mac_addr, ETH_ALEN);
 	else
 		/* Generate random MAC address. */
-		eth_random_addr(net_dev->dev_addr);
+		eth_random_addr((uint8_t *)net_dev->dev_addr);
 
 	if (dev_info.mtu)
 		net_dev->mtu = dev_info.mtu;
diff --git a/kernel/linux/kni/kni_net.c b/kernel/linux/kni/kni_net.c
index 29e5b9e21f..fd54b6fe0f 100644
--- a/kernel/linux/kni/kni_net.c
+++ b/kernel/linux/kni/kni_net.c
@@ -779,7 +779,7 @@ kni_net_set_mac(struct net_device *netdev, void *p)
 		return -EADDRNOTAVAIL;
 
 	memcpy(req.mac_addr, addr->sa_data, netdev->addr_len);
-	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+	memcpy((unsigned char *)netdev->dev_addr, addr->sa_data, netdev->addr_len);
 
 	ret = kni_net_process_request(netdev, &req);
 
-- 
2.25.1