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	mctp: Add test utils
Add a new object for shared test utilities Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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# SPDX-License-Identifier: GPL-2.0
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obj-$(CONFIG_MCTP) += mctp.o
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mctp-objs := af_mctp.o device.o route.o neigh.o
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# tests
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obj-$(CONFIG_MCTP_TEST) += test/utils.o
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								net/mctp/test/utils.c
									
									
									
									
									
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								net/mctp/test/utils.c
									
									
									
									
									
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// SPDX-License-Identifier: GPL-2.0
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#include <linux/netdevice.h>
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#include <linux/mctp.h>
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#include <linux/if_arp.h>
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#include <net/mctpdevice.h>
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#include <net/pkt_sched.h>
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#include "utils.h"
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static netdev_tx_t mctp_test_dev_tx(struct sk_buff *skb,
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				    struct net_device *ndev)
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{
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	kfree(skb);
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	return NETDEV_TX_OK;
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}
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static const struct net_device_ops mctp_test_netdev_ops = {
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	.ndo_start_xmit = mctp_test_dev_tx,
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};
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static void mctp_test_dev_setup(struct net_device *ndev)
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{
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	ndev->type = ARPHRD_MCTP;
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	ndev->mtu = MCTP_DEV_TEST_MTU;
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	ndev->hard_header_len = 0;
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	ndev->addr_len = 0;
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	ndev->tx_queue_len = DEFAULT_TX_QUEUE_LEN;
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	ndev->flags = IFF_NOARP;
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	ndev->netdev_ops = &mctp_test_netdev_ops;
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	ndev->needs_free_netdev = true;
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}
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struct mctp_test_dev *mctp_test_create_dev(void)
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{
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	struct mctp_test_dev *dev;
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	struct net_device *ndev;
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	int rc;
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	ndev = alloc_netdev(sizeof(*dev), "mctptest%d", NET_NAME_ENUM,
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			    mctp_test_dev_setup);
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	if (!ndev)
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		return NULL;
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	dev = netdev_priv(ndev);
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	dev->ndev = ndev;
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	rc = register_netdev(ndev);
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	if (rc) {
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		free_netdev(ndev);
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		return NULL;
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	}
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	rcu_read_lock();
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	dev->mdev = __mctp_dev_get(ndev);
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	mctp_dev_hold(dev->mdev);
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	rcu_read_unlock();
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	return dev;
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}
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void mctp_test_destroy_dev(struct mctp_test_dev *dev)
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{
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	mctp_dev_put(dev->mdev);
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	unregister_netdev(dev->ndev);
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}
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								net/mctp/test/utils.h
									
									
									
									
									
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								net/mctp/test/utils.h
									
									
									
									
									
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NET_MCTP_TEST_UTILS_H
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#define __NET_MCTP_TEST_UTILS_H
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#include <kunit/test.h>
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#define MCTP_DEV_TEST_MTU	68
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struct mctp_test_dev {
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	struct net_device *ndev;
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	struct mctp_dev *mdev;
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};
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struct mctp_test_dev;
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struct mctp_test_dev *mctp_test_create_dev(void);
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void mctp_test_destroy_dev(struct mctp_test_dev *dev);
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#endif /* __NET_MCTP_TEST_UTILS_H */
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