s390/net: remove pm support from iucv drivers
Commit 394216275c ("s390: remove broken hibernate / power management support")
removed support for ARCH_HIBERNATION_POSSIBLE on s390.
So drop the unused pm ops from the iucv drivers.
CC: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann
David S. Miller
parent
fc4a4515ac
commit
97ccf6f9ae
@ -112,27 +112,10 @@ DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf);
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*/
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#define PRINTK_HEADER " iucv: " /* for debugging */
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/* dummy device to make sure netiucv_pm functions are called */
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static struct device *netiucv_dev;
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static int netiucv_pm_prepare(struct device *);
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static void netiucv_pm_complete(struct device *);
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static int netiucv_pm_freeze(struct device *);
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static int netiucv_pm_restore_thaw(struct device *);
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static const struct dev_pm_ops netiucv_pm_ops = {
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.prepare = netiucv_pm_prepare,
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.complete = netiucv_pm_complete,
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.freeze = netiucv_pm_freeze,
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.thaw = netiucv_pm_restore_thaw,
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.restore = netiucv_pm_restore_thaw,
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};
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static struct device_driver netiucv_driver = {
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.owner = THIS_MODULE,
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.name = "netiucv",
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.bus = &iucv_bus,
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.pm = &netiucv_pm_ops,
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};
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static int netiucv_callback_connreq(struct iucv_path *, u8 *, u8 *);
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@ -213,7 +196,6 @@ struct netiucv_priv {
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fsm_instance *fsm;
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struct iucv_connection *conn;
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struct device *dev;
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int pm_state;
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};
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/**
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@ -1275,72 +1257,6 @@ static int netiucv_close(struct net_device *dev)
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return 0;
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}
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static int netiucv_pm_prepare(struct device *dev)
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{
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IUCV_DBF_TEXT(trace, 3, __func__);
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return 0;
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}
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static void netiucv_pm_complete(struct device *dev)
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{
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IUCV_DBF_TEXT(trace, 3, __func__);
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return;
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}
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/**
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* netiucv_pm_freeze() - Freeze PM callback
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* @dev: netiucv device
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*
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* close open netiucv interfaces
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*/
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static int netiucv_pm_freeze(struct device *dev)
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{
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struct netiucv_priv *priv = dev_get_drvdata(dev);
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struct net_device *ndev = NULL;
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int rc = 0;
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IUCV_DBF_TEXT(trace, 3, __func__);
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if (priv && priv->conn)
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ndev = priv->conn->netdev;
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if (!ndev)
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goto out;
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netif_device_detach(ndev);
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priv->pm_state = fsm_getstate(priv->fsm);
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rc = netiucv_close(ndev);
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out:
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return rc;
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}
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/**
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* netiucv_pm_restore_thaw() - Thaw and restore PM callback
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* @dev: netiucv device
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*
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* re-open netiucv interfaces closed during freeze
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*/
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static int netiucv_pm_restore_thaw(struct device *dev)
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{
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struct netiucv_priv *priv = dev_get_drvdata(dev);
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struct net_device *ndev = NULL;
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int rc = 0;
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IUCV_DBF_TEXT(trace, 3, __func__);
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if (priv && priv->conn)
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ndev = priv->conn->netdev;
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if (!ndev)
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goto out;
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switch (priv->pm_state) {
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case DEV_STATE_RUNNING:
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case DEV_STATE_STARTWAIT:
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rc = netiucv_open(ndev);
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break;
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default:
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break;
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}
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netif_device_attach(ndev);
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out:
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return rc;
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}
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/**
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* Start transmission of a packet.
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* Called from generic network device layer.
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@ -2156,7 +2072,6 @@ static void __exit netiucv_exit(void)
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netiucv_unregister_device(dev);
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}
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device_unregister(netiucv_dev);
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driver_unregister(&netiucv_driver);
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iucv_unregister(&netiucv_handler, 1);
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iucv_unregister_dbf_views();
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@ -2182,27 +2097,10 @@ static int __init netiucv_init(void)
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IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", rc);
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goto out_iucv;
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}
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/* establish dummy device */
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netiucv_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
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if (!netiucv_dev) {
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rc = -ENOMEM;
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goto out_driver;
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}
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dev_set_name(netiucv_dev, "netiucv");
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netiucv_dev->bus = &iucv_bus;
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netiucv_dev->parent = iucv_root;
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netiucv_dev->release = (void (*)(struct device *))kfree;
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netiucv_dev->driver = &netiucv_driver;
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rc = device_register(netiucv_dev);
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if (rc) {
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put_device(netiucv_dev);
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goto out_driver;
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}
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netiucv_banner();
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return rc;
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out_driver:
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driver_unregister(&netiucv_driver);
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out_iucv:
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iucv_unregister(&netiucv_handler, 1);
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out_dbf:
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@ -29,12 +29,9 @@ MODULE_AUTHOR
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MODULE_DESCRIPTION ("Linux for S/390 IUCV special message driver");
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static struct iucv_path *smsg_path;
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/* dummy device used as trigger for PM functions */
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static struct device *smsg_dev;
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static DEFINE_SPINLOCK(smsg_list_lock);
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static LIST_HEAD(smsg_list);
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static int iucv_path_connected;
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static int smsg_path_pending(struct iucv_path *, u8 *, u8 *);
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static void smsg_message_pending(struct iucv_path *, struct iucv_message *);
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@ -124,60 +121,15 @@ void smsg_unregister_callback(const char *prefix,
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kfree(cb);
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}
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static int smsg_pm_freeze(struct device *dev)
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{
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#ifdef CONFIG_PM_DEBUG
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printk(KERN_WARNING "smsg_pm_freeze\n");
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#endif
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if (smsg_path && iucv_path_connected) {
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iucv_path_sever(smsg_path, NULL);
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iucv_path_connected = 0;
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}
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return 0;
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}
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static int smsg_pm_restore_thaw(struct device *dev)
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{
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int rc;
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#ifdef CONFIG_PM_DEBUG
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printk(KERN_WARNING "smsg_pm_restore_thaw\n");
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#endif
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if (smsg_path && !iucv_path_connected) {
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memset(smsg_path, 0, sizeof(*smsg_path));
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smsg_path->msglim = 255;
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smsg_path->flags = 0;
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rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG ",
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NULL, NULL, NULL);
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#ifdef CONFIG_PM_DEBUG
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if (rc)
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printk(KERN_ERR
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"iucv_path_connect returned with rc %i\n", rc);
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#endif
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if (!rc)
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iucv_path_connected = 1;
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cpcmd("SET SMSG IUCV", NULL, 0, NULL);
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}
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return 0;
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}
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static const struct dev_pm_ops smsg_pm_ops = {
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.freeze = smsg_pm_freeze,
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.thaw = smsg_pm_restore_thaw,
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.restore = smsg_pm_restore_thaw,
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};
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static struct device_driver smsg_driver = {
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.owner = THIS_MODULE,
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.name = SMSGIUCV_DRV_NAME,
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.bus = &iucv_bus,
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.pm = &smsg_pm_ops,
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};
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static void __exit smsg_exit(void)
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{
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cpcmd("SET SMSG OFF", NULL, 0, NULL);
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device_unregister(smsg_dev);
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iucv_unregister(&smsg_handler, 1);
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driver_unregister(&smsg_driver);
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}
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@ -205,27 +157,10 @@ static int __init smsg_init(void)
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NULL, NULL, NULL);
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if (rc)
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goto out_free_path;
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else
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iucv_path_connected = 1;
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smsg_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
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if (!smsg_dev) {
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rc = -ENOMEM;
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goto out_free_path;
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}
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dev_set_name(smsg_dev, "smsg_iucv");
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smsg_dev->bus = &iucv_bus;
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smsg_dev->parent = iucv_root;
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smsg_dev->release = (void (*)(struct device *))kfree;
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smsg_dev->driver = &smsg_driver;
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rc = device_register(smsg_dev);
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if (rc)
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goto out_put;
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cpcmd("SET SMSG IUCV", NULL, 0, NULL);
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return 0;
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out_put:
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put_device(smsg_dev);
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out_free_path:
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iucv_path_free(smsg_path);
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smsg_path = NULL;
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