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-rw-r--r--include/acpi/button.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/acpi/button.h b/include/acpi/button.h
index bb643a79d65..97eea0e4c01 100644
--- a/include/acpi/button.h
+++ b/include/acpi/button.h
@@ -3,8 +3,23 @@
#include <linux/notifier.h>
+#if defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE)
extern int acpi_lid_notifier_register(struct notifier_block *nb);
extern int acpi_lid_notifier_unregister(struct notifier_block *nb);
extern int acpi_lid_open(void);
+#else
+static inline int acpi_lid_notifier_register(struct notifier_block *nb)
+{
+ return 0;
+}
+static inline int acpi_lid_notifier_unregister(struct notifier_block *nb)
+{
+ return 0;
+}
+static inline int acpi_lid_open(void)
+{
+ return 1;
+}
+#endif /* defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE) */
#endif /* ACPI_BUTTON_H */