Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ccad637b authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

netdev: expose ethernet address primitives 



When ethernet devices are converted, the function pointer setup
by eth_setup() need to be done during intialization.

Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent eeda3fd6

drivers/usb/gadget/u_ether.c

+2 −2
Original line number Diff line number Diff line
@@ -146,7 +146,7 @@ static inline int qlen(struct usb_gadget *gadget) 


/* NETWORK DRIVER HOOKUP (to the layer above this driver) */



static int eth_change_mtu(struct net_device *net, int new_mtu)

static int ueth_change_mtu(struct net_device *net, int new_mtu)

{

	struct eth_dev	*dev = netdev_priv(net);

	unsigned long	flags;
@@ -764,7 +764,7 @@ int __init gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]) 
	if (ethaddr)

		memcpy(ethaddr, dev->host_mac, ETH_ALEN);



	net->change_mtu = eth_change_mtu;

	net->change_mtu = ueth_change_mtu;

	net->hard_start_xmit = eth_start_xmit;

	net->open = eth_open;

	net->stop = eth_stop;

include/linux/etherdevice.h

+4 −0
Original line number Diff line number Diff line
@@ -41,6 +41,10 @@ extern int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh); 
extern void eth_header_cache_update(struct hh_cache *hh,

				    const struct net_device *dev,

				    const unsigned char *haddr);

extern int eth_mac_addr(struct net_device *dev, void *p);

extern int eth_change_mtu(struct net_device *dev, int new_mtu);

extern int eth_validate_addr(struct net_device *dev);







extern struct net_device *alloc_etherdev_mq(int sizeof_priv, unsigned int queue_count);

net/ethernet/eth.c

+8 −5
Original line number Diff line number Diff line
@@ -282,7 +282,7 @@ EXPORT_SYMBOL(eth_header_cache_update); 
 * This doesn't change hardware matching, so needs to be overridden

 * for most real devices.

 */

static int eth_mac_addr(struct net_device *dev, void *p)

int eth_mac_addr(struct net_device *dev, void *p)

{

	struct sockaddr *addr = p;
@@ -293,6 +293,7 @@ static int eth_mac_addr(struct net_device *dev, void *p) 
	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);

	return 0;

}

EXPORT_SYMBOL(eth_mac_addr);



/**

 * eth_change_mtu - set new MTU size
@@ -302,21 +303,23 @@ static int eth_mac_addr(struct net_device *dev, void *p) 
 * Allow changing MTU size. Needs to be overridden for devices

 * supporting jumbo frames.

 */

static int eth_change_mtu(struct net_device *dev, int new_mtu)

int eth_change_mtu(struct net_device *dev, int new_mtu)

{

	if (new_mtu < 68 || new_mtu > ETH_DATA_LEN)

		return -EINVAL;

	dev->mtu = new_mtu;

	return 0;

}

EXPORT_SYMBOL(eth_change_mtu);



static int eth_validate_addr(struct net_device *dev)

int eth_validate_addr(struct net_device *dev)

{

	if (!is_valid_ether_addr(dev->dev_addr))

		return -EADDRNOTAVAIL;



	return 0;

}

EXPORT_SYMBOL(eth_validate_addr);



const struct header_ops eth_header_ops ____cacheline_aligned = {

	.create		= eth_header,
@@ -334,11 +337,11 @@ const struct header_ops eth_header_ops ____cacheline_aligned = { 
void ether_setup(struct net_device *dev)

{

	dev->header_ops		= &eth_header_ops;



#ifdef CONFIG_COMPAT_NET_DEV_OPS

	dev->change_mtu		= eth_change_mtu;

	dev->set_mac_address 	= eth_mac_addr;

	dev->validate_addr	= eth_validate_addr;



#endif

	dev->type		= ARPHRD_ETHER;

	dev->hard_header_len 	= ETH_HLEN;

	dev->mtu		= ETH_DATA_LEN;