mem2node__node
node = mem2node__node(&c2c.mem2node, sample->phys_addr);
T("failed: mem2node__node", 0 == mem2node__node(&map, 0x50));
T("failed: mem2node__node", 1 == mem2node__node(&map, 0x100));
T("failed: mem2node__node", 1 == mem2node__node(&map, 0x250));
T("failed: mem2node__node", 3 == mem2node__node(&map, 0x500));
T("failed: mem2node__node", 3 == mem2node__node(&map, 0x650));
T("failed: mem2node__node", -1 == mem2node__node(&map, 0x450));
T("failed: mem2node__node", -1 == mem2node__node(&map, 0x1050));
int mem2node__node(struct mem2node *map, u64 addr);