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-rw-r--r--include/linux/ipc_namespace.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 3392d50de35..3bf40e246a8 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -128,4 +128,18 @@ static inline void put_ipc_ns(struct ipc_namespace *ns)
{
}
#endif
+
+#ifdef CONFIG_POSIX_MQUEUE_SYSCTL
+
+struct ctl_table_header;
+extern struct ctl_table_header *mq_register_sysctl_table(void);
+
+#else /* CONFIG_POSIX_MQUEUE_SYSCTL */
+
+static inline struct ctl_table_header *mq_register_sysctl_table(void)
+{
+ return NULL;
+}
+
+#endif /* CONFIG_POSIX_MQUEUE_SYSCTL */
#endif