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mei: move clients cleanup code from init.c to client.c

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during reset we clean up client data structures
we move that code into wrappers in client
and call the wrappers

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler 2013-02-06 14:06:44 +02:00 committed by Greg Kroah-Hartman
parent 330dd7da5e
commit 074b4c01ab
3 changed files with 62 additions and 22 deletions
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51
drivers/misc/mei/client.c
View File

@ -676,3 +676,54 @@ err:
return rets;
}
/**
* mei_cl_all_disconnect - disconnect forcefully all connected clients
*
* @dev - mei device
*/
void mei_cl_all_disconnect(struct mei_device *dev)
{
struct mei_cl *cl, *next;
list_for_each_entry_safe(cl, next, &dev->file_list, link) {
cl->state = MEI_FILE_DISCONNECTED;
cl->mei_flow_ctrl_creds = 0;
cl->read_cb = NULL;
cl->timer_count = 0;
}
}
/**
* mei_cl_all_read_wakeup - wake up all readings so they can be interrupted
*
* @dev - mei device
*/
void mei_cl_all_read_wakeup(struct mei_device *dev)
{
struct mei_cl *cl, *next;
list_for_each_entry_safe(cl, next, &dev->file_list, link) {
if (waitqueue_active(&cl->rx_wait)) {
dev_dbg(&dev->pdev->dev, "Waking up client!\n");
wake_up_interruptible(&cl->rx_wait);
}
}
}
/**
* mei_cl_all_write_clear - clear all pending writes
* @dev - mei device
*/
void mei_cl_all_write_clear(struct mei_device *dev)
{
struct mei_cl_cb *cb, *next;
list_for_each_entry_safe(cb, next, &dev->write_list.list, list) {
list_del(&cb->list);
mei_io_cb_free(cb);
}
}

5
drivers/misc/mei/client.h
View File

@ -94,4 +94,9 @@ int mei_cl_connect(struct mei_cl *cl, struct file *file);
void mei_host_client_init(struct work_struct *work);
void mei_cl_all_disconnect(struct mei_device *dev);
void mei_cl_all_read_wakeup(struct mei_device *dev);
void mei_cl_all_write_clear(struct mei_device *dev);
#endif /* _MEI_CLIENT_H_ */

28
drivers/misc/mei/init.c
View File

@ -135,10 +135,6 @@ err:
*/
void mei_reset(struct mei_device *dev, int interrupts_enabled)
{
struct mei_cl *cl_pos = NULL;
struct mei_cl *cl_next = NULL;
struct mei_cl_cb *cb_pos = NULL;
struct mei_cl_cb *cb_next = NULL;
bool unexpected;
if (dev->dev_state == MEI_DEV_RECOVERING_FROM_RESET)
@ -157,13 +153,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
dev->dev_state != MEI_DEV_POWER_DOWN)
dev->dev_state = MEI_DEV_RESETING;
list_for_each_entry_safe(cl_pos,
cl_next, &dev->file_list, link) {
cl_pos->state = MEI_FILE_DISCONNECTED;
cl_pos->mei_flow_ctrl_creds = 0;
cl_pos->read_cb = NULL;
cl_pos->timer_count = 0;
}
mei_cl_all_disconnect(dev);
/* remove entry if already in list */
dev_dbg(&dev->pdev->dev, "remove iamthif and wd from the file list.\n");
mei_cl_unlink(&dev->wd_cl);
@ -185,18 +176,11 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n",
mei_dev_state_str(dev->dev_state));
/* Wake up all readings so they can be interrupted */
list_for_each_entry_safe(cl_pos, cl_next, &dev->file_list, link) {
if (waitqueue_active(&cl_pos->rx_wait)) {
dev_dbg(&dev->pdev->dev, "Waking up client!\n");
wake_up_interruptible(&cl_pos->rx_wait);
}
}
/* wake up all readings so they can be interrupted */
mei_cl_all_read_wakeup(dev);
/* remove all waiting requests */
list_for_each_entry_safe(cb_pos, cb_next, &dev->write_list.list, list) {
list_del(&cb_pos->list);
mei_io_cb_free(cb_pos);
}
mei_cl_all_write_clear(dev);
}