perf hists: Introduce perf_hpp_list__for_each_format_safe macro

Introducing perf_hpp_list__for_each_format_safe macro to iterate
perf_hpp_list object's output entries safely.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1453109064-1026-21-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index eadffca1a501..f5b2309de16e 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -251,8 +251,8 @@ static inline void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
 #define perf_hpp_list__for_each_format(_list, format) \
         list_for_each_entry(format, &(_list)->fields, list)
 
-#define perf_hpp__for_each_format_safe(format, tmp)     \
-        list_for_each_entry_safe(format, tmp, &perf_hpp_list.fields, list)
+#define perf_hpp_list__for_each_format_safe(_list, format, tmp) \
+        list_for_each_entry_safe(format, tmp, &(_list)->fields, list)
 
 #define perf_hpp__for_each_sort_list(format) \
         list_for_each_entry(format, &perf_hpp_list.sorts, sort_list)