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-rw-r--r--src/include/memrange.h9
-rw-r--r--src/lib/memrange.c6
2 files changed, 15 insertions, 0 deletions
diff --git a/src/include/memrange.h b/src/include/memrange.h
index 23dae6a30a..0e69b2ffeb 100644
--- a/src/include/memrange.h
+++ b/src/include/memrange.h
@@ -61,6 +61,12 @@ static inline unsigned long range_entry_tag(const struct range_entry *r)
return r->tag;
}
+static inline void range_entry_update_tag(struct range_entry *r,
+ unsigned long new_tag)
+{
+ r->tag = new_tag;
+}
+
/* Iterate over each entry in a memranges structure. Ranges cannot
* be deleted while processing each entry as the list cannot be safely
* traversed after such an operation.
@@ -104,4 +110,7 @@ void memranges_create_hole(struct memranges *ranges,
void memranges_insert(struct memranges *ranges,
resource_t base, resource_t size, unsigned long tag);
+/* Returns next entry after the provided entry. NULL if r is last. */
+struct range_entry *memranges_next_entry(struct memranges *ranges,
+ const struct range_entry *r);
#endif /* MEMRANGE_H_ */
diff --git a/src/lib/memrange.c b/src/lib/memrange.c
index c376d52816..1a16ef73ab 100644
--- a/src/lib/memrange.c
+++ b/src/lib/memrange.c
@@ -321,3 +321,9 @@ void memranges_fill_holes_up_to(struct memranges *ranges,
/* Merge all entries that were newly added. */
merge_neighbor_entries(ranges);
}
+
+struct range_entry *memranges_next_entry(struct memranges *ranges,
+ const struct range_entry *r)
+{
+ return r->next;
+}