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perf: Stop using deprecated bpf_program__title()

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Switch from deprecated bpf_program__title() API to
bpf_program__section_name(). Also drop unnecessary error checks because
neither bpf_program__title() nor bpf_program__section_name() can fail or
return NULL.

Fixes: 5210958420 ("libbpf: Deprecate notion of BPF program "title" in favor of "section name"")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/bpf/20200908180127.1249-1-andriin@fb.com
This commit is contained in:
Andrii Nakryiko 2020-09-08 11:01:27 -07:00 committed by Alexei Starovoitov
parent 7fb5eefd76
commit 8081ede1f7
1 changed files with 2 additions and 10 deletions
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12
tools/perf/util/bpf-loader.c
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@ -328,12 +328,6 @@ config_bpf_program(struct bpf_program *prog)
probe_conf.no_inlines = false;
probe_conf.force_add = false;
config_str = bpf_program__title(prog, false);
if (IS_ERR(config_str)) {
pr_debug("bpf: unable to get title for program\n");
return PTR_ERR(config_str);
}
priv = calloc(sizeof(*priv), 1);
if (!priv) {
pr_debug("bpf: failed to alloc priv\n");
@ -341,6 +335,7 @@ config_bpf_program(struct bpf_program *prog)
}
pev = &priv->pev;
config_str = bpf_program__section_name(prog);
pr_debug("bpf: config program '%s'\n", config_str);
err = parse_prog_config(config_str, &main_str, &is_tp, pev);
if (err)
@ -454,10 +449,7 @@ preproc_gen_prologue(struct bpf_program *prog, int n,
if (err) {
const char *title;
title = bpf_program__title(prog, false);
if (!title)
title = "[unknown]";
title = bpf_program__section_name(prog);
pr_debug("Failed to generate prologue for program %s\n",
title);
return err;