42 	int want = 0;  in fdt_find_regions()  local
62 			include = want >= 2;  in fdt_find_regions()
71 			include = want >= 2;  in fdt_find_regions()
86 			stack[depth] = want;  in fdt_find_regions()
87 			if (want == 1)  in fdt_find_regions()
90 				want = 2;  in fdt_find_regions()
91 			else if (want)  in fdt_find_regions()
92 				want--;  in fdt_find_regions()
95 			include = want;  in fdt_find_regions()
102 			include = want;  in fdt_find_regions()
103 			want = stack[depth--];  in fdt_find_regions()
197  * fdt_add_alias_regions() - Add regions covering the aliases that we want
201  * aliases are special in that we generally want to include those which
204  * In fact we want to include only aliases for those nodes still included in
208  * This function scans the aliases and adds regions for those which we want
323 		if (!info->stack[i].want)  in fdt_include_supernodes()
324 			info->stack[i].want = WANT_NODES_ONLY;  in fdt_include_supernodes()
353 	p->want = WANT_NOTHING;  in fdt_first_region()
376  * marks the start of the region we want to include.
379  * scanning until we find something that we don't want included. This
384  * One complication here is that we want to merge regions. So when we
407  * We keep track of a variable called 'want' which tells us what we want
412  * included.  In this case 'want' will be WANT_NODES_AND_PROPS. The
413  * FDT_REG_DIRECT_SUBNODES feature also makes use of 'want'. While we
414  * are inside the subnode, 'want' will be set to WANT_NODES_ONLY, so
420  * Using 'want' we work out 'include', which tells us whether this
463 	 * decision. 'want' is used to track what we want to include - it  in fdt_next_region()
503 				include = p.want >= WANT_NODES_AND_PROPS;  in fdt_next_region()
514 				    !p.want)  in fdt_next_region()
515 					p.want = WANT_NODES_ONLY;  in fdt_next_region()
522 			include = p.want >= WANT_NODES_AND_PROPS;  in fdt_next_region()
540 			info->stack[p.depth].want = p.want;  in fdt_next_region()
547 			if (p.want == WANT_NODES_ONLY ||  in fdt_next_region()
551 				p.want = WANT_NOTHING;  in fdt_next_region()
558 				p.want = (flags & FDT_REG_ALL_SUBNODES) ?  in fdt_next_region()
563 			/* If not requested, decay our 'p.want' value */  in fdt_next_region()
564 			else if (p.want) {  in fdt_next_region()
565 				if (p.want != WANT_ALL_NODES_AND_PROPS)  in fdt_next_region()
566 					p.want--;  in fdt_next_region()
577 			include = p.want;  in fdt_next_region()
582 			include = p.want;  in fdt_next_region()
587 			 * If we don't want this node, stop right away, unless  in fdt_next_region()
590 			if (!p.want && !(flags & FDT_REG_DIRECT_SUBNODES))  in fdt_next_region()
592 			p.want = info->stack[p.depth].want;  in fdt_next_region()