of_irq_parse_imap_parent
imap_next = of_irq_parse_imap_parent(imap_parent,
imap = of_irq_parse_imap_parent(oldimap, imaplen, out_irq);
const __be32 *of_irq_parse_imap_parent(const __be32 *imap, int len,
imap = of_irq_parse_imap_parent(imap, imap_end - imap, &sup_args);