--- xnu/xnu-3248.50.21/iokit/Kernel/IOTimerEventSource.cpp
+++ xnu/xnu-2050.7.9/iokit/Kernel/IOTimerEventSource.cpp
@@ -41,9 +41,6 @@
 
 #include <IOKit/IOTimeStamp.h>
 #include <IOKit/IOKitDebug.h>
-#if CONFIG_DTRACE
-#include <mach/sdt.h>
-#endif
 
 #define super IOEventSource
 OSDefineMetaClassAndStructors(IOTimerEventSource, IOEventSource)
@@ -117,16 +114,13 @@
             	
             	if (trace)
                 	IOTimeStampStartConstant(IODBG_TIMES(IOTIMES_ACTION),
-											 VM_KERNEL_UNSLIDE(doit), (uintptr_t) me->owner);
+											 (uintptr_t) doit, (uintptr_t) me->owner);
 				
                 (*doit)(me->owner, me);
-#if CONFIG_DTRACE
-		DTRACE_TMR3(iotescallout__expire, Action, doit, OSObject, me->owner, void, me->workLoop);
-#endif
                 
 				if (trace)
                 	IOTimeStampEndConstant(IODBG_TIMES(IOTIMES_ACTION),
-										   VM_KERNEL_UNSLIDE(doit), (uintptr_t) me->owner);
+										   (uintptr_t) doit, (uintptr_t) me->owner);
             }
             IOStatisticsOpenGate();
             wl->openGate();
@@ -159,16 +153,13 @@
             	
             	if (trace)
                 	IOTimeStampStartConstant(IODBG_TIMES(IOTIMES_ACTION),
-											 VM_KERNEL_UNSLIDE(doit), (uintptr_t) me->owner);
+											 (uintptr_t) doit, (uintptr_t) me->owner);
 				
                 (*doit)(me->owner, me);
-#if CONFIG_DTRACE
-		DTRACE_TMR3(iotescallout__expire, Action, doit, OSObject, me->owner, void, me->workLoop);
-#endif
                 
 				if (trace)
                 	IOTimeStampEndConstant(IODBG_TIMES(IOTIMES_ACTION),
-										   VM_KERNEL_UNSLIDE(doit), (uintptr_t) me->owner);
+										   (uintptr_t) doit, (uintptr_t) me->owner);
             }
             IOStatisticsOpenGate();
             wl->openGate();
@@ -369,7 +360,7 @@
             reserved->workLoop = workLoop;
             reserved->calloutGeneration++;
             if (thread_call_enter1_delayed((thread_call_t) calloutEntry, 
-                    (void *)(uintptr_t) reserved->calloutGeneration, inAbstime))
+                    (void *) reserved->calloutGeneration, inAbstime))
             {
                 release();
                 workLoop->release();