linux-master/kernel/resource.c

170 /* Return the conflict entry if you can't request it */
263  * Returns 0 for success, conflict resource on error.
267 	struct resource *conflict;
270 	conflict = __request_resource(root, new);
272 	return conflict;
284 	struct resource *conflict;
286 	conflict = request_resource_conflict(root, new);
287 	return conflict ? -EBUSY : 0;
716 	struct resource *conflict;
740 		conflict = __request_resource(root, old);
741 		BUG_ON(conflict);
877  * Returns 0 on success, conflict resource if the resource can't be inserted.
879  * This function is equivalent to request_resource_conflict when no conflict
880  * happens. If a conflict happens, and the conflicting resources
890 	struct resource *conflict;
893 	conflict = __insert_resource(parent, new);
895 	return conflict;
910 	struct resource *conflict;
912 	conflict = insert_resource_conflict(parent, new);
913 	return conflict ? -EBUSY : 0;
932 		struct resource *conflict;
934 		conflict = __insert_resource(root, new);
935 		if (!conflict)
937 		if (conflict == root)
940 		/* Ok, expand resource to cover the conflict, then try again .. */
941 		if (conflict->start < new->start)
942 			new->start = conflict->start;
943 		if (conflict->end > new->end)
944 			new->end = conflict->end;
946 		pr_info("Expanded resource %s due to conflict with %s\n", new->name, conflict->name);
1048 	struct resource *conflict;
1064 		conflict = __request_resource(parent, res);
1065 		if (!conflict) {
1073 		/* conflict covered whole area */
1074 		if (conflict->start <= res->start &&
1075 				conflict->end >= res->end) {
1082 		if (conflict->start > res->start) {
1084 			res->end = conflict->start - 1;
1085 			if (conflict->end < end) {
1092 				next_res->start = conflict->end + 1;
1098 			res->start = conflict->end + 1;
1224 		struct resource *conflict;
1230 		conflict = __request_resource(parent, res);
1231 		if (!conflict)
1238 		if (conflict->desc == IORES_DESC_DEVICE_PRIVATE_MEMORY) {
1240 				conflict->name, conflict, res);
1242 		if (conflict != parent) {
1243 			if (!(conflict->flags & IORESOURCE_BUSY)) {
1244 				parent = conflict;
1248 		if (conflict->flags & flags & IORESOURCE_MUXED) {
1539  * When a conflict is detected between any existing resources and the newly
1547 	struct resource *conflict, **ptr;
1555 	conflict = request_resource_conflict(root, new);
1556 	if (conflict) {
1558 			new, conflict->name, conflict);