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Diffstat (limited to 'include/linux/cred.h')
-rw-r--r--include/linux/cred.h23
1 files changed, 19 insertions, 4 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 2fb2ca2127ed..8b6c083e68a7 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -62,9 +62,27 @@ do { \
groups_free(group_info); \
} while (0)
-extern struct group_info *groups_alloc(int);
extern struct group_info init_groups;
+#ifdef CONFIG_MULTIUSER
+extern struct group_info *groups_alloc(int);
extern void groups_free(struct group_info *);
+
+extern int in_group_p(kgid_t);
+extern int in_egroup_p(kgid_t);
+#else
+static inline void groups_free(struct group_info *group_info)
+{
+}
+
+static inline int in_group_p(kgid_t grp)
+{
+ return 1;
+}
+static inline int in_egroup_p(kgid_t grp)
+{
+ return 1;
+}
+#endif
extern int set_current_groups(struct group_info *);
extern void set_groups(struct cred *, struct group_info *);
extern int groups_search(const struct group_info *, kgid_t);
@@ -74,9 +92,6 @@ extern bool may_setgroups(void);
#define GROUP_AT(gi, i) \
((gi)->blocks[(i) / NGROUPS_PER_BLOCK][(i) % NGROUPS_PER_BLOCK])
-extern int in_group_p(kgid_t);
-extern int in_egroup_p(kgid_t);
-
/*
* The security context of a task
*