[PATCH v2 1/2] libbpf: Use probe_name for legacy kprobe

From: Qiang Wang
Date: Mon Dec 27 2021 - 08:08:13 EST


Fix a bug in commit 46ed5fc33db9, which wrongly used the
func_name instead of probe_name to register legacy kprobe.

Fixes: 46ed5fc33db9 ("libbpf: Refactor and simplify legacy kprobe code")
Reviewed-by: Hengqi Chen <hengqi.chen@xxxxxxxxx>
Tested-by: Hengqi Chen <hengqi.chen@xxxxxxxxx>
Co-developed-by: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx>
Signed-off-by: Qiang Wang <wangqiang.wq.frank@xxxxxxxxxxxxx>
Signed-off-by: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx>
---
tools/lib/bpf/libbpf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 7c74342bb668..b7d6c951fa09 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -9735,7 +9735,7 @@ bpf_program__attach_kprobe_opts(const struct bpf_program *prog,
gen_kprobe_legacy_event_name(probe_name, sizeof(probe_name),
func_name, offset);

- legacy_probe = strdup(func_name);
+ legacy_probe = strdup(probe_name);
if (!legacy_probe)
return libbpf_err_ptr(-ENOMEM);

--
2.20.1