Commit ded21b72 authored by Jeremy Kerr's avatar Jeremy Kerr Committed by David S. Miller
Browse files

mctp: Add test utils 



Add a new object for shared test utilities

Signed-off-by: default avatarJeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 161eba50

net/mctp/Makefile

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# SPDX-License-Identifier: GPL-2.0

obj-$(CONFIG_MCTP) += mctp.o

mctp-objs := af_mctp.o device.o route.o neigh.o



# tests

obj-$(CONFIG_MCTP_TEST) += test/utils.o

net/mctp/test/utils.c

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// SPDX-License-Identifier: GPL-2.0



#include <linux/netdevice.h>

#include <linux/mctp.h>

#include <linux/if_arp.h>



#include <net/mctpdevice.h>

#include <net/pkt_sched.h>



#include "utils.h"



static netdev_tx_t mctp_test_dev_tx(struct sk_buff *skb,

				    struct net_device *ndev)

{

	kfree(skb);

	return NETDEV_TX_OK;

}



static const struct net_device_ops mctp_test_netdev_ops = {

	.ndo_start_xmit = mctp_test_dev_tx,

};



static void mctp_test_dev_setup(struct net_device *ndev)

{

	ndev->type = ARPHRD_MCTP;

	ndev->mtu = MCTP_DEV_TEST_MTU;

	ndev->hard_header_len = 0;

	ndev->addr_len = 0;

	ndev->tx_queue_len = DEFAULT_TX_QUEUE_LEN;

	ndev->flags = IFF_NOARP;

	ndev->netdev_ops = &mctp_test_netdev_ops;

	ndev->needs_free_netdev = true;

}



struct mctp_test_dev *mctp_test_create_dev(void)

{

	struct mctp_test_dev *dev;

	struct net_device *ndev;

	int rc;



	ndev = alloc_netdev(sizeof(*dev), "mctptest%d", NET_NAME_ENUM,

			    mctp_test_dev_setup);

	if (!ndev)

		return NULL;



	dev = netdev_priv(ndev);

	dev->ndev = ndev;



	rc = register_netdev(ndev);

	if (rc) {

		free_netdev(ndev);

		return NULL;

	}



	rcu_read_lock();

	dev->mdev = __mctp_dev_get(ndev);

	mctp_dev_hold(dev->mdev);

	rcu_read_unlock();



	return dev;

}



void mctp_test_destroy_dev(struct mctp_test_dev *dev)

{

	mctp_dev_put(dev->mdev);

	unregister_netdev(dev->ndev);

}

net/mctp/test/utils.h

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/* SPDX-License-Identifier: GPL-2.0 */



#ifndef __NET_MCTP_TEST_UTILS_H

#define __NET_MCTP_TEST_UTILS_H



#include <kunit/test.h>



#define MCTP_DEV_TEST_MTU	68



struct mctp_test_dev {

	struct net_device *ndev;

	struct mctp_dev *mdev;

};



struct mctp_test_dev;



struct mctp_test_dev *mctp_test_create_dev(void);

void mctp_test_destroy_dev(struct mctp_test_dev *dev);



#endif /* __NET_MCTP_TEST_UTILS_H */