Function rte_intr_callback_unregister_pending

dpdk/lib/eal/linux/eal_interrupts.c:567–616

}

int
rte_intr_callback_unregister_pending(const struct rte_intr_handle *intr_handle,
				rte_intr_callback_fn cb_fn, void *cb_arg,
				rte_intr_unregister_callback_fn ucb_fn)
{
	int ret;
	struct rte_intr_source *src;
	struct rte_intr_callback *cb, *next;

	/* do parameter checking first */
	if (rte_intr_fd_get(intr_handle) < 0) {
		RTE_LOG(ERR, EAL, "Unregistering with invalid input parameter\n");
		return -EINVAL;
	}

	rte_spinlock_lock(&intr_lock);

	/* check if the interrupt source for the fd is existent */
	TAILQ_FOREACH(src, &intr_sources, next) {
		if (rte_intr_fd_get(src->intr_handle) == rte_intr_fd_get(intr_handle))
			break;
	}

	/* No interrupt source registered for the fd */
	if (src == NULL) {
		ret = -ENOENT;

	/* only usable if the source is active */
	} else if (src->active == 0) {
		ret = -EAGAIN;

	} else {
		ret = 0;

		/* walk through the callbacks and mark all that match. */
		for (cb = TAILQ_FIRST(&src->callbacks); cb != NULL; cb = next) {
			next = TAILQ_NEXT(cb, next);
			if (cb->cb_fn == cb_fn && (cb_arg == (void *)-1 ||
					cb->cb_arg == cb_arg)) {
				cb->pending_delete = 1;
				cb->ucb_fn = ucb_fn;
				ret++;
			}
		}
	}

	rte_spinlock_unlock(&intr_lock);

	return ret;
}

int
rte_intr_callback_unregister(const struct rte_intr_handle *intr_handle,