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Commit 6ed90e36 authored by Christian Gromm's avatar Christian Gromm Committed by Greg Kroah-Hartman
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staging: most: remove tainted flag 



This patch removes the atomic tainted flag. It is needed to get rid of
logical overhead.

Signed-off-by: default avatarChristian Gromm <christian.gromm@microchip.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a0fceb1f

drivers/staging/most/mostcore/core.c

+1 −32
Original line number Diff line number Diff line
@@ -74,7 +74,6 @@ struct most_c_obj { 


struct most_inst_obj {

	int dev_id;

	atomic_t tainted;

	struct most_interface *iface;

	struct list_head channel_list;

	struct most_c_obj *channel[MAX_CHANNELS];
@@ -1299,18 +1298,10 @@ static int arm_mbo_chain(struct most_c_obj *c, int dir, 
 */

int most_submit_mbo(struct mbo *mbo)

{

	struct most_c_obj *c;

	struct most_inst_obj *i;



	if (unlikely((!mbo) || (!mbo->context))) {

		pr_err("Bad MBO or missing channel reference\n");

		return -EINVAL;

	}

	c = mbo->context;

	i = c->inst;



	if (unlikely(atomic_read(&i->tainted)))

		return -ENODEV;



	nq_hdm_mbo(mbo);

	return 0;
@@ -1436,17 +1427,8 @@ EXPORT_SYMBOL_GPL(most_get_mbo); 
 */

void most_put_mbo(struct mbo *mbo)

{

	struct most_c_obj *c;

	struct most_inst_obj *i;



	c = mbo->context;

	i = c->inst;

	struct most_c_obj *c = mbo->context;



	if (unlikely(atomic_read(&i->tainted))) {

		mbo->status = MBO_E_CLOSE;

		trash_mbo(mbo);

		return;

	}

	if (c->cfg.direction == MOST_CH_TX) {

		arm_mbo(mbo);

		return;
@@ -1602,14 +1584,6 @@ int most_stop_channel(struct most_interface *iface, int id, 
	c->hdm_enqueue_task = NULL;

	mutex_unlock(&c->stop_task_mutex);



	mutex_lock(&deregister_mutex);

	if (atomic_read(&c->inst->tainted)) {

		mutex_unlock(&deregister_mutex);

		mutex_unlock(&c->start_mutex);

		return -ENODEV;

	}

	mutex_unlock(&deregister_mutex);



	if (iface->mod && modref) {

		module_put(iface->mod);

		modref--;
@@ -1750,7 +1724,6 @@ struct kobject *most_register_interface(struct most_interface *iface) 
	INIT_LIST_HEAD(&inst->channel_list);

	inst->iface = iface;

	inst->dev_id = id;

	atomic_set(&inst->tainted, 0);

	list_add_tail(&inst->list, &instance_list);



	for (i = 0; i < iface->num_channels; i++) {
@@ -1835,10 +1808,6 @@ void most_deregister_interface(struct most_interface *iface) 
		c->aim1.ptr = NULL;

	}



	mutex_lock(&deregister_mutex);

	atomic_set(&i->tainted, 1);

	mutex_unlock(&deregister_mutex);



	while (modref) {

		if (iface->mod && modref)

			module_put(iface->mod);