static void __init of_unittest_pci_dma_ranges()

in unittest.c [952:1002]

• 43 lines of code
• 5 McCabe index (conditional complexity)

static void __init of_unittest_pci_dma_ranges(void)
{
	struct device_node *np;
	struct of_pci_range range;
	struct of_pci_range_parser parser;
	int i = 0;

	if (!IS_ENABLED(CONFIG_PCI))
		return;

	np = of_find_node_by_path("/testcase-data/address-tests/pci@90000000");
	if (!np) {
		pr_err("missing testcase data\n");
		return;
	}

	if (of_pci_dma_range_parser_init(&parser, np)) {
		pr_err("missing dma-ranges property\n");
		return;
	}

	/*
	 * Get the dma-ranges from the device tree
	 */
	for_each_of_pci_range(&parser, &range) {
		if (!i) {
			unittest(range.size == 0x10000000,
				 "for_each_of_pci_range wrong size on node %pOF size=%llx\n",
				 np, range.size);
			unittest(range.cpu_addr == 0x20000000,
				 "for_each_of_pci_range wrong CPU addr (%llx) on node %pOF",
				 range.cpu_addr, np);
			unittest(range.pci_addr == 0x80000000,
				 "for_each_of_pci_range wrong DMA addr (%llx) on node %pOF",
				 range.pci_addr, np);
		} else {
			unittest(range.size == 0x10000000,
				 "for_each_of_pci_range wrong size on node %pOF size=%llx\n",
				 np, range.size);
			unittest(range.cpu_addr == 0x40000000,
				 "for_each_of_pci_range wrong CPU addr (%llx) on node %pOF",
				 range.cpu_addr, np);
			unittest(range.pci_addr == 0xc0000000,
				 "for_each_of_pci_range wrong DMA addr (%llx) on node %pOF",
				 range.pci_addr, np);
		}
		i++;
	}

	of_node_put(np);
}