X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=include%2Flinux%2Fftrace.h;h=832e65f06754265cfd8914cde56653223c8d1b8f;hb=7a8526a5cd51cf5f070310c6c37dd7293334ac49;hp=a69f363b61bf736eaa30f90481ba42ed503d102e;hpb=e72b069609aa76cc1de35f5d434dbfaa5392ae9a;p=linux-2.6-microblaze.git

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index a69f363b61bf..832e65f06754 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -643,6 +643,22 @@ static inline int ftrace_disable_ftrace_graph_caller(void) { return 0; }
 extern int ftrace_make_nop(struct module *mod,
 			   struct dyn_ftrace *rec, unsigned long addr);
 
+/**
+ * ftrace_need_init_nop - return whether nop call sites should be initialized
+ *
+ * Normally the compiler's -mnop-mcount generates suitable nops, so we don't
+ * need to call ftrace_init_nop() if the code is built with that flag.
+ * Architectures where this is not always the case may define their own
+ * condition.
+ *
+ * Return must be:
+ *  0	    if ftrace_init_nop() should be called
+ *  Nonzero if ftrace_init_nop() should not be called
+ */
+
+#ifndef ftrace_need_init_nop
+#define ftrace_need_init_nop() (!__is_defined(CC_USING_NOP_MCOUNT))
+#endif
 
 /**
  * ftrace_init_nop - initialize a nop call site