diff mbox series

[bpf-next] perf: stop using deprecated bpf_program__title()

Message ID 20200908180127.1249-1-andriin@fb.com
State New
Headers show
Series [bpf-next] perf: stop using deprecated bpf_program__title() | expand

Commit Message

Andrii Nakryiko Sept. 8, 2020, 6:01 p.m. UTC
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: 521095842027 ("libbpf: Deprecate notion of BPF program "title" in favor of "section name"")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
---
 tools/perf/util/bpf-loader.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

Comments

Tobias Klauser Sept. 9, 2020, 9:12 a.m. UTC | #1
On 2020-09-08 at 20:01:27 +0200, Andrii Nakryiko <andriin@fb.com> wrote:
> 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: 521095842027 ("libbpf: Deprecate notion of BPF program "title" in favor of "section name"")
> Signed-off-by: Andrii Nakryiko <andriin@fb.com>

Reviewed-by: Tobias Klauser <tklauser@distanz.ch>

Thanks
Alexei Starovoitov Sept. 9, 2020, 6:29 p.m. UTC | #2
On Wed, Sep 9, 2020 at 2:13 AM Tobias Klauser <tklauser@distanz.ch> wrote:
>
> On 2020-09-08 at 20:01:27 +0200, Andrii Nakryiko <andriin@fb.com> wrote:
> > 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: 521095842027 ("libbpf: Deprecate notion of BPF program "title" in favor of "section name"")
> > Signed-off-by: Andrii Nakryiko <andriin@fb.com>
>
> Reviewed-by: Tobias Klauser <tklauser@distanz.ch>

Applied to bpf-next. Thanks
diff mbox series

Patch

diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 2feb751516ab..0374adcb223c 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -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;