crypto: omap-aes - make queue length configurable

	return size;

}

static ssize_t queue_len_show(struct device *dev, struct device_attribute *attr,

			      char *buf)

{

	struct omap_aes_dev *dd = dev_get_drvdata(dev);

	return sprintf(buf, "%d\n", dd->engine->queue.max_qlen);

}

static ssize_t queue_len_store(struct device *dev,

			       struct device_attribute *attr, const char *buf,

			       size_t size)

{

	struct omap_aes_dev *dd;

	ssize_t status;

	long value;

	unsigned long flags;

	status = kstrtol(buf, 0, &value);

	if (status)

		return status;

	if (value < 1)

		return -EINVAL;

	/*

	 * Changing the queue size in fly is safe, if size becomes smaller

	 * than current size, it will just not accept new entries until

	 * it has shrank enough.

	 */

	spin_lock_bh(&list_lock);

	list_for_each_entry(dd, &dev_list, list) {

		spin_lock_irqsave(&dd->lock, flags);

		dd->engine->queue.max_qlen = value;

		dd->aead_queue.base.max_qlen = value;

		spin_unlock_irqrestore(&dd->lock, flags);

	}

	spin_unlock_bh(&list_lock);

	return size;

}

static DEVICE_ATTR_RW(queue_len);

static DEVICE_ATTR_RW(fallback);

static struct attribute *omap_aes_attrs[] = {

	&dev_attr_queue_len.attr,

	&dev_attr_fallback.attr,

	NULL,

};