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-rw-r--r--src/core/cgroup.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/core/cgroup.h b/src/core/cgroup.h
index 2ff39e5767..6555d89e37 100644
--- a/src/core/cgroup.h
+++ b/src/core/cgroup.h
@@ -76,7 +76,7 @@ void cgroup_bonding_trim_list(CGroupBonding *first, bool delete_root);
int cgroup_bonding_is_empty(CGroupBonding *b);
int cgroup_bonding_is_empty_list(CGroupBonding *first);
-CGroupBonding *cgroup_bonding_find_list(CGroupBonding *first, const char *controller);
+CGroupBonding *cgroup_bonding_find_list(CGroupBonding *first, const char *controller) _pure_;
char *cgroup_bonding_to_string(CGroupBonding *b);