X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-generic%2Fmutex-null.h;h=5cf8b7ce0c456085a536818d13e011e10b4ee6b7;hb=9464c7cf61b9433057924c36e6e02f303a00e768;hp=254a126ede5c694fc4b024c5b43c192c13b928d8;hpb=41689045f6a3cbe0550e1d34e9cc20d2e8c432ba;p=linux-2.6.git

diff --git a/include/asm-generic/mutex-null.h b/include/asm-generic/mutex-null.h
index 254a126ed..5cf8b7ce0 100644
--- a/include/asm-generic/mutex-null.h
+++ b/include/asm-generic/mutex-null.h
@@ -10,10 +10,15 @@
 #ifndef _ASM_GENERIC_MUTEX_NULL_H
 #define _ASM_GENERIC_MUTEX_NULL_H
 
-#define __mutex_fastpath_lock(count, fail_fn)		fail_fn(count)
-#define __mutex_fastpath_lock_retval(count, fail_fn)	fail_fn(count)
-#define __mutex_fastpath_unlock(count, fail_fn)		fail_fn(count)
-#define __mutex_fastpath_trylock(count, fail_fn)	fail_fn(count)
-#define __mutex_slowpath_needs_to_unlock()		1
+/* extra parameter only needed for mutex debugging: */
+#ifndef __IP__
+# define __IP__
+#endif
+
+#define __mutex_fastpath_lock(count, fail_fn)	      fail_fn(count __RET_IP__)
+#define __mutex_fastpath_lock_retval(count, fail_fn)  fail_fn(count __RET_IP__)
+#define __mutex_fastpath_unlock(count, fail_fn)       fail_fn(count __RET_IP__)
+#define __mutex_fastpath_trylock(count, fail_fn)      fail_fn(count)
+#define __mutex_slowpath_needs_to_unlock()	      1
 
 #endif