staging: sw_sync: Add stubs for kernels without CONFIG_SW_SYNC
authorGreg Hackmann <ghackmann@google.com>
Wed, 5 Feb 2014 00:08:34 +0000 (16:08 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 7 Feb 2014 17:03:16 +0000 (09:03 -0800)
Add stubs for kernels without CONFIG_SW_SYNC

Cc: Colin Cross <ccross@android.com>
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Greg Hackmann <ghackmann@google.com>
[jstultz: resolved minor conflict, tweaked commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/android/sw_sync.h

index 585040be5f1828916c648f46670b6be182ed2812..5aaf71d6974b16efed469637dcb1ca296b924ebf 100644 (file)
@@ -35,10 +35,27 @@ struct sw_sync_pt {
        u32                     value;
 };
 
+#if IS_ENABLED(CONFIG_SW_SYNC)
 struct sw_sync_timeline *sw_sync_timeline_create(const char *name);
 void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc);
 
 struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value);
+#else
+static inline struct sw_sync_timeline *sw_sync_timeline_create(const char *name)
+{
+       return NULL;
+}
+
+static inline void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc)
+{
+}
+
+static inline struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj,
+               u32 value)
+{
+       return NULL;
+}
+#endif /* IS_ENABLED(CONFIG_SW_SYNC) */
 
 #endif /* __KERNEL __ */