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staging: unisys: Make serverdown synchronous

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I don't see why serverdown should be async on a workqueue.  Just make it
synchronous, and remove some code in the process

Signed-off-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Neil Horman 2015-07-21 09:55:42 -04:00 • committed by Greg Kroah-Hartman
parent 0d5073935a
commit ace72eef40
1 changed files with 2 additions and 23 deletions
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25
drivers/staging/unisys/visornic/visornic_main.c
View file

@ -61,7 +61,6 @@ static const struct file_operations debugfs_enable_ints_fops = {
.write = enable_ints_write,
};
static struct workqueue_struct *visornic_serverdown_workqueue;
static struct workqueue_struct *visornic_timeout_reset_workqueue;
/* GUIDS for director channel type supported by this driver. */
@ -148,7 +147,6 @@ struct visornic_devdata {
* xmit buffer list that have been
* sent to the IOPART end
*/
struct work_struct serverdown_completion;
visorbus_state_complete_func server_down_complete_func;
struct work_struct timeout_reset;
struct uiscmdrsp *cmdrsp_rcv; /* cmdrsp_rcv is used for
@ -367,13 +365,10 @@ static ssize_t enable_ints_write(struct file *file,
* Returns void.
*/
static void
visornic_serverdown_complete(struct work_struct *work)
visornic_serverdown_complete(struct visornic_devdata *devdata)
{
struct visornic_devdata *devdata;
struct net_device *netdev;
devdata = container_of(work, struct visornic_devdata,
serverdown_completion);
netdev = devdata->netdev;
/* Stop using datachan */
@ -418,8 +413,7 @@ visornic_serverdown(struct visornic_devdata *devdata,
}
devdata->server_change_state = true;
devdata->server_down_complete_func = complete_func;
queue_work(visornic_serverdown_workqueue,
&devdata->serverdown_completion);
visornic_serverdown_complete(devdata);
} else if (devdata->server_change_state) {
dev_dbg(&devdata->dev->device, "%s changing state\n",
__func__);
@ -1892,8 +1886,6 @@ static int visornic_probe(struct visor_device *dev)
err = -ENOMEM;
goto cleanup_xmit_cmdrsp;
}
INIT_WORK(&devdata->serverdown_completion,
visornic_serverdown_complete);
INIT_WORK(&devdata->timeout_reset, visornic_timeout_reset);
devdata->server_down = false;
devdata->server_change_state = false;
@ -2019,7 +2011,6 @@ static void visornic_remove(struct visor_device *dev)
}
/* going_away prevents new items being added to the workqueues */
flush_workqueue(visornic_serverdown_workqueue);
flush_workqueue(visornic_timeout_reset_workqueue);
debugfs_remove_recursive(devdata->eth_debugfs_dir);
@ -2155,12 +2146,6 @@ static int visornic_init(void)
if (!ret)
goto cleanup_debugfs;
/* create workqueue for serverdown completion */
visornic_serverdown_workqueue =
create_singlethread_workqueue("visornic_serverdown");
if (!visornic_serverdown_workqueue)
goto cleanup_debugfs;
/* create workqueue for tx timeout reset */
visornic_timeout_reset_workqueue =
create_singlethread_workqueue("visornic_timeout_reset");
@ -2176,8 +2161,6 @@ static int visornic_init(void)
return 0;
cleanup_workqueue:
flush_workqueue(visornic_serverdown_workqueue);
destroy_workqueue(visornic_serverdown_workqueue);
if (visornic_timeout_reset_workqueue) {
flush_workqueue(visornic_timeout_reset_workqueue);
destroy_workqueue(visornic_timeout_reset_workqueue);
@ -2197,10 +2180,6 @@ static void visornic_cleanup(void)
{
visorbus_unregister_visor_driver(&visornic_driver);
if (visornic_serverdown_workqueue) {
flush_workqueue(visornic_serverdown_workqueue);
destroy_workqueue(visornic_serverdown_workqueue);
}
if (visornic_timeout_reset_workqueue) {
flush_workqueue(visornic_timeout_reset_workqueue);
destroy_workqueue(visornic_timeout_reset_workqueue);