35 .end = -1,
36 .flags = IORESOURCE_MEM,
37};
38EXPORT_SYMBOL(iomem_resource);
39
40static DEFINE_RWLOCK(resource_lock);
41
42static void *r_next(struct seq_file *m, void *v, loff_t *pos)
43{
44 struct resource *p = v;
45 (*pos)++;
46 if (p->child)
47 return p->child;
48 while (!p->sibling && p->parent)
49 p = p->parent;
50 return p->sibling;
51}
52
53#ifdef CONFIG_PROC_FS
54
55enum { MAX_IORES_LEVEL = 5 };
56
57static void *r_start(struct seq_file *m, loff_t *pos)
58 __acquires(resource_lock)
59{
60 struct resource *p = m->private;
61 loff_t l = 0;
62 read_lock(&resource_lock);
63 for (p = p->child; p && l < *pos; p = r_next(m, p, &l))
64 ;
65 return p;
66}
67
68static void r_stop(struct seq_file *m, void *v)
69 __releases(resource_lock)
70{
71 read_unlock(&resource_lock);
72}
73
74static int r_show(struct seq_file *m, void *v)
75{