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| author | Jiri Olsa <jolsa@kernel.org> | 2022-04-22 12:00:23 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-04-22 19:02:15 +0200 |
| commit | 3a7ab605978d9dd48ad2c7db8df7ad388884f887 (patch) | |
| tree | 0c33d1a8cf842c0e2f794909caf1870968ec044c /tools/perf/util/bpf-loader.c | |
| parent | perf list: Print all available tool events (diff) | |
| download | linux-3a7ab605978d9dd48ad2c7db8df7ad388884f887.tar.xz linux-3a7ab605978d9dd48ad2c7db8df7ad388884f887.zip | |
perf tools: Move libbpf init in libbpf_init function
Move the libbpf init code into a single function, so that we have a single
place doing that.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: https://lore.kernel.org/r/20220422100025.1469207-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf-loader.c')
| -rw-r--r-- | tools/perf/util/bpf-loader.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c index b72cef1ae959..f8ad581ea247 100644 --- a/tools/perf/util/bpf-loader.c +++ b/tools/perf/util/bpf-loader.c @@ -99,16 +99,26 @@ static int bpf_perf_object__add(struct bpf_object *obj) return perf_obj ? 0 : -ENOMEM; } +static int libbpf_init(void) +{ + if (libbpf_initialized) + return 0; + + libbpf_set_print(libbpf_perf_print); + libbpf_initialized = true; + return 0; +} + struct bpf_object * bpf__prepare_load_buffer(void *obj_buf, size_t obj_buf_sz, const char *name) { LIBBPF_OPTS(bpf_object_open_opts, opts, .object_name = name); struct bpf_object *obj; + int err; - if (!libbpf_initialized) { - libbpf_set_print(libbpf_perf_print); - libbpf_initialized = true; - } + err = libbpf_init(); + if (err) + return ERR_PTR(err); obj = bpf_object__open_mem(obj_buf, obj_buf_sz, &opts); if (IS_ERR_OR_NULL(obj)) { @@ -135,14 +145,13 @@ struct bpf_object *bpf__prepare_load(const char *filename, bool source) { LIBBPF_OPTS(bpf_object_open_opts, opts, .object_name = filename); struct bpf_object *obj; + int err; - if (!libbpf_initialized) { - libbpf_set_print(libbpf_perf_print); - libbpf_initialized = true; - } + err = libbpf_init(); + if (err) + return ERR_PTR(err); if (source) { - int err; void *obj_buf; size_t obj_buf_sz; |