Index: kernel/arch/sparc64/include/context.h
===================================================================
--- kernel/arch/sparc64/include/context.h	(revision 82474ef569903ac99835ea373081f03a5195c413)
+++ kernel/arch/sparc64/include/context.h	(revision d42976c40c1237acbdc4f8e81b51bebab76ce97f)
@@ -42,8 +42,4 @@
 #define SP_DELTA	(STACK_WINDOW_SAVE_AREA_SIZE + STACK_ARG_SAVE_AREA_SIZE)
 
-#ifdef context_set
-#undef context_set
-#endif
-
 #define context_set(c, _pc, stack, size)			\
 	(c)->pc = ((uintptr_t) _pc) - 8;			\