perf evlist: Introduce evsel list accessors
To replace the longer list_entry constructs for things that are widely
used:
perf_evlist__{first,last}(evlist)
perf_evsel__next(evsel)
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ng7azq26wg1jd801qqpcozwp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 7e7d34f..77832b8 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1689,7 +1689,7 @@
lseek(fd, sizeof(f_header), SEEK_SET);
if (session->evlist != evlist)
- pair = list_entry(session->evlist->entries.next, struct perf_evsel, node);
+ pair = perf_evlist__first(session->evlist);
list_for_each_entry(attr, &evlist->entries, node) {
attr->id_offset = lseek(fd, 0, SEEK_CUR);
@@ -1704,7 +1704,7 @@
if (err < 0)
goto out_err_write;
attr->ids += pair->ids;
- pair = list_entry(pair->node.next, struct perf_evsel, node);
+ pair = perf_evsel__next(pair);
}
}