static void maple_send()

in maple/maple.c [269:308]

• 32 lines of code
• 7 McCabe index (conditional complexity)

static void maple_send(void)
{
	int i, maple_packets = 0;
	struct mapleq *mq, *nmq;

	if (!maple_dma_done())
		return;

	/* disable DMA */
	__raw_writel(0, MAPLE_ENABLE);

	if (!list_empty(&maple_sentq))
		goto finish;

	mutex_lock(&maple_wlist_lock);
	if (list_empty(&maple_waitq)) {
		mutex_unlock(&maple_wlist_lock);
		goto finish;
	}

	maple_lastptr = maple_sendbuf;
	maple_sendptr = maple_sendbuf;

	list_for_each_entry_safe(mq, nmq, &maple_waitq, list) {
		maple_build_block(mq);
		list_del_init(&mq->list);
		list_add_tail(&mq->list, &maple_sentq);
		if (maple_packets++ > MAPLE_MAXPACKETS)
			break;
	}
	mutex_unlock(&maple_wlist_lock);
	if (maple_packets > 0) {
		for (i = 0; i < (1 << MAPLE_DMA_PAGES); i++)
			__flush_purge_region(maple_sendbuf + i * PAGE_SIZE,
					PAGE_SIZE);
	}

finish:
	maple_dma_reset();
}