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cndm_proto: Support changing MAC address

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich
2026-01-01 22:13:03 -08:00
parent 541f6a9ee6
commit 77b50c7f85
1 changed files with 22 additions and 0 deletions
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22
src/cndm_proto/modules/cndm_proto/cndm_proto_netdev.c
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@@ -10,6 +10,8 @@ Authors:
#include "cndm_proto.h" #include "cndm_proto.h"
#include <linux/version.h>
static int cndm_proto_open(struct net_device *ndev) static int cndm_proto_open(struct net_device *ndev)
{ {
struct cndm_proto_priv *priv = netdev_priv(ndev); struct cndm_proto_priv *priv = netdev_priv(ndev);
@@ -50,10 +52,30 @@ static int cndm_proto_close(struct net_device *ndev)
return 0; return 0;
} }
static int cndm_proto_set_mac(struct net_device *ndev, void *addr)
{
struct sockaddr *saddr = addr;
if (!is_valid_ether_addr(saddr->sa_data))
return -EADDRNOTAVAIL;
netif_addr_lock_bh(ndev);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
eth_hw_addr_set(ndev, saddr->sa_data);
#else
memcpy(ndev->dev_addr, saddr->sa_data, ETH_ALEN);
#endif
netif_addr_unlock_bh(ndev);
return 0;
}
static const struct net_device_ops cndm_proto_netdev_ops = { static const struct net_device_ops cndm_proto_netdev_ops = {
.ndo_open = cndm_proto_open, .ndo_open = cndm_proto_open,
.ndo_stop = cndm_proto_close, .ndo_stop = cndm_proto_close,
.ndo_start_xmit = cndm_proto_start_xmit, .ndo_start_xmit = cndm_proto_start_xmit,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = cndm_proto_set_mac,
}; };
irqreturn_t cndm_proto_irq(int irqn, void *data) irqreturn_t cndm_proto_irq(int irqn, void *data)