44 	int want = 0;  in fdt_find_regions()  local
64 			include = want >= 2;  in fdt_find_regions()
73 			include = want >= 2;  in fdt_find_regions()
88 			stack[depth] = want;  in fdt_find_regions()
89 			if (want == 1)  in fdt_find_regions()
92 				want = 2;  in fdt_find_regions()
93 			else if (want)  in fdt_find_regions()
94 				want--;  in fdt_find_regions()
97 			include = want;  in fdt_find_regions()
101 			include = want;  in fdt_find_regions()
102 			want = stack[depth--];  in fdt_find_regions()
196  * fdt_add_alias_regions() - Add regions covering the aliases that we want
200  * aliases are special in that we generally want to include those which
203  * In fact we want to include only aliases for those nodes still included in
207  * This function scans the aliases and adds regions for those which we want
322 		if (!info->stack[i].want)  in fdt_include_supernodes()
323 			info->stack[i].want = WANT_NODES_ONLY;  in fdt_include_supernodes()
352 	p->want = WANT_NOTHING;  in fdt_first_region()
375  * marks the start of the region we want to include.
378  * scanning until we find something that we don't want included. This
383  * One complication here is that we want to merge regions. So when we
406  * We keep track of a variable called 'want' which tells us what we want
411  * included.  In this case 'want' will be WANT_NODES_AND_PROPS. The
412  * FDT_REG_DIRECT_SUBNODES feature also makes use of 'want'. While we
413  * are inside the subnode, 'want' will be set to WANT_NODES_ONLY, so
419  * Using 'want' we work out 'include', which tells us whether this
462 	 * decision. 'want' is used to track what we want to include - it  in fdt_next_region()
502 				include = p.want >= WANT_NODES_AND_PROPS;  in fdt_next_region()
513 				    !p.want)  in fdt_next_region()
514 					p.want = WANT_NODES_ONLY;  in fdt_next_region()
521 			include = p.want >= WANT_NODES_AND_PROPS;  in fdt_next_region()
539 			info->stack[p.depth].want = p.want;  in fdt_next_region()
546 			if (p.want == WANT_NODES_ONLY ||  in fdt_next_region()
550 				p.want = WANT_NOTHING;  in fdt_next_region()
557 				p.want = (flags & FDT_REG_ALL_SUBNODES) ?  in fdt_next_region()
562 			/* If not requested, decay our 'p.want' value */  in fdt_next_region()
563 			else if (p.want) {  in fdt_next_region()
564 				if (p.want != WANT_ALL_NODES_AND_PROPS)  in fdt_next_region()
565 					p.want--;  in fdt_next_region()
576 			include = p.want;  in fdt_next_region()
581 			include = p.want;  in fdt_next_region()
586 			 * If we don't want this node, stop right away, unless  in fdt_next_region()
589 			if (!p.want && !(flags & FDT_REG_DIRECT_SUBNODES))  in fdt_next_region()
591 			p.want = info->stack[p.depth].want;  in fdt_next_region()