Add a new object for shared test utilities
Signed-off-by: Jeremy Kerr jk@codeconstruct.com.au --- net/mctp/Makefile | 3 ++ net/mctp/test/utils.c | 67 +++++++++++++++++++++++++++++++++++++++++++ net/mctp/test/utils.h | 20 +++++++++++++ 3 files changed, 90 insertions(+) create mode 100644 net/mctp/test/utils.c create mode 100644 net/mctp/test/utils.h
diff --git a/net/mctp/Makefile b/net/mctp/Makefile index 0171333384d7..6cd55233e685 100644 --- a/net/mctp/Makefile +++ b/net/mctp/Makefile @@ -1,3 +1,6 @@ # 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 diff --git a/net/mctp/test/utils.c b/net/mctp/test/utils.c new file mode 100644 index 000000000000..e2ab1f3da357 --- /dev/null +++ b/net/mctp/test/utils.c @@ -0,0 +1,67 @@ +// 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; + + rcu_read_lock(); + dev->mdev = __mctp_dev_get(ndev); + mctp_dev_hold(dev->mdev); + rcu_read_unlock(); + + rc = register_netdev(ndev); + if (rc) { + free_netdev(ndev); + return NULL; + } + + return dev; +} + +void mctp_test_destroy_dev(struct mctp_test_dev *dev) +{ + mctp_dev_put(dev->mdev); + unregister_netdev(dev->ndev); +} diff --git a/net/mctp/test/utils.h b/net/mctp/test/utils.h new file mode 100644 index 000000000000..df6aa1c03440 --- /dev/null +++ b/net/mctp/test/utils.h @@ -0,0 +1,20 @@ +/* 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 */