From 4451dae46992131ef5c42147444c183c364b1149 Mon Sep 17 00:00:00 2001 From: Howard Chu Date: Thu, 15 Aug 2024 09:36:17 +0800 Subject: [PATCH] perf evlist: Introduce method to find if there is a bpf-output event We'll use it in the next patch, to deciding how to set up the ring buffer. Signed-off-by: Howard Chu Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Link: https://lore.kernel.org/r/20240815013626.935097-2-howardchu95@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evlist.c | 12 ++++++++++++ tools/perf/util/evlist.h | 1 + 2 files changed, 13 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c0379fa1ccfe..ef58a7764318 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -2627,3 +2627,15 @@ void evlist__uniquify_name(struct evlist *evlist) } } } + +bool evlist__has_bpf_output(struct evlist *evlist) +{ + struct evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel__is_bpf_output(evsel)) + return true; + } + + return false; +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index b46f1a320783..bcc1c6984bb5 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -447,5 +447,6 @@ int evlist__scnprintf_evsels(struct evlist *evlist, size_t size, char *bf); void evlist__check_mem_load_aux(struct evlist *evlist); void evlist__warn_user_requested_cpus(struct evlist *evlist, const char *cpu_list); void evlist__uniquify_name(struct evlist *evlist); +bool evlist__has_bpf_output(struct evlist *evlist); #endif /* __PERF_EVLIST_H */ -- 2.50.1