From: Greg Hackmann <ghackmann@google.com>
Date: Fri, 11 Oct 2013 20:54:41 +0000 (-0700)
Subject: staging: sw_sync: add stubs for kernels without CONFIG_SW_SYNC
X-Git-Tag: firefly_0821_release~4090^2~489^2~10
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3eeae661f1c26431dd03d2760e2373620bb488ca;p=firefly-linux-kernel-4.4.55.git

staging: sw_sync: add stubs for kernels without CONFIG_SW_SYNC

Change-Id: I7a12679eb3c10b1beaf36c6612cf2e3f6662a034
Signed-off-by: Greg Hackmann <ghackmann@google.com>
---

diff --git a/drivers/staging/android/sw_sync.h b/drivers/staging/android/sw_sync.h
index 585040be5f18..aba25cbb0382 100644
--- a/drivers/staging/android/sw_sync.h
+++ b/drivers/staging/android/sw_sync.h
@@ -21,6 +21,7 @@
 
 #ifdef __KERNEL__
 
+#include <linux/kconfig.h>
 #include "sync.h"
 
 struct sw_sync_timeline {
@@ -35,10 +36,27 @@ 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 __ */