Commit a1c9f97f authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo

perf diff: Fix -o/--order option behavior (again)

Commit 21e6d842 ("perf diff: Use perf_hpp__register_sort_field
interface") changed list_add() to perf_hpp__register_sort_field().

This resulted in a behavior change since the field was added to the tail
instead of the head.  So the -o option is mostly ignored due to its
order in the list.

This patch fixes it by adding perf_hpp__prepend_sort_field().
Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Fixes: 21e6d842 ("perf diff: Use perf_hpp__register_sort_field interface")
Link: http://lkml.kernel.org/r/20170118051457.30946-2-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 8381cdd0
......@@ -1199,7 +1199,7 @@ static int ui_init(void)
BUG_ON(1);
}
perf_hpp__register_sort_field(fmt);
perf_hpp__prepend_sort_field(fmt);
return 0;
}
......
......@@ -521,6 +521,12 @@ void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
list_add_tail(&format->sort_list, &list->sorts);
}
void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
struct perf_hpp_fmt *format)
{
list_add(&format->sort_list, &list->sorts);
}
void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
{
list_del(&format->list);
......
......@@ -283,6 +283,8 @@ void perf_hpp_list__column_register(struct perf_hpp_list *list,
struct perf_hpp_fmt *format);
void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
struct perf_hpp_fmt *format);
void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
struct perf_hpp_fmt *format);
static inline void perf_hpp__column_register(struct perf_hpp_fmt *format)
{
......@@ -294,6 +296,11 @@ static inline void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
perf_hpp_list__register_sort_field(&perf_hpp_list, format);
}
static inline void perf_hpp__prepend_sort_field(struct perf_hpp_fmt *format)
{
perf_hpp_list__prepend_sort_field(&perf_hpp_list, format);
}
#define perf_hpp_list__for_each_format(_list, format) \
list_for_each_entry(format, &(_list)->fields, list)
......
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