Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/perf/util/cgroup.h b/tools/perf/util/cgroup.h
index f033a80..2ec11f0 100644
--- a/tools/perf/util/cgroup.h
+++ b/tools/perf/util/cgroup.h
@@ -18,11 +18,11 @@
 struct cgroup *cgroup__get(struct cgroup *cgroup);
 void cgroup__put(struct cgroup *cgroup);
 
-struct perf_evlist;
+struct evlist;
 
-struct cgroup *evlist__findnew_cgroup(struct perf_evlist *evlist, const char *name);
+struct cgroup *evlist__findnew_cgroup(struct evlist *evlist, const char *name);
 
-void evlist__set_default_cgroup(struct perf_evlist *evlist, struct cgroup *cgroup);
+void evlist__set_default_cgroup(struct evlist *evlist, struct cgroup *cgroup);
 
 int parse_cgroups(const struct option *opt, const char *str, int unset);