[tip:perf/core] perf bench numa: Make sure dprintf() is not defined

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  6aa4d8264003eb4f91fb09831ad25f059113f7b2
Gitweb:     http://git.kernel.org/tip/6aa4d8264003eb4f91fb09831ad25f059113f7b2
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 14 Feb 2017 14:19:34 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 14 Feb 2017 15:19:18 -0300

perf bench numa: Make sure dprintf() is not defined

When building with clang we get this error:

  bench/numa.c:46:9: error: 'dprintf' macro redefined [-Werror,-Wmacro-redefined]
  #define dprintf(x...) do { if (g && g->p.show_details >= 1) printf(x); } while (0)
          ^
  /usr/include/bits/stdio2.h:145:12: note: previous definition is here
  #   define dprintf(fd, ...) \
             ^
    CC       /tmp/build/perf/tests/parse-no-sample-id-all.o
  1 error generated.

So, make sure it is undefined before using that name.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Davidlohr Bueso <dbueso@xxxxxxx>
Cc: Hitoshi Mitake <mitake@xxxxxxxxxxxxxxxxxxxxx>
Cc: Jakub Jelen <jjelen@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-f654o2svtrutamvxt7igwz74@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/bench/numa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 9e5a02d..3083fc3 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -43,6 +43,7 @@
 /*
  * Debug printf:
  */
+#undef dprintf
 #define dprintf(x...) do { if (g && g->p.show_details >= 1) printf(x); } while (0)
 
 struct thread_data {