On Thu, Aug 21, 2025 at 6:47 AM Andrii Nakryiko
[off-list ref] wrote:

On Mon, Aug 18, 2025 at 8:40 PM Menglong Dong [off-list ref] wrote:

quoted

Some functions is recursive for the kprobe_multi and impact the benchmark
results. So just skip them.

Signed-off-by: Menglong Dong <redacted>
---
 tools/testing/selftests/bpf/trace_helpers.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c
index d24baf244d1f..9da9da51b132 100644
--- a/tools/testing/selftests/bpf/trace_helpers.c
+++ b/tools/testing/selftests/bpf/trace_helpers.c

@@ -559,6 +559,22 @@ static bool skip_entry(char *name)
        if (!strncmp(name, "__ftrace_invalid_address__",
                     sizeof("__ftrace_invalid_address__") - 1))
                return true;
+
+       if (!strcmp(name, "migrate_disable"))
+               return true;
+       if (!strcmp(name, "migrate_enable"))
+               return true;
+       if (!strcmp(name, "rcu_read_unlock_strict"))
+               return true;
+       if (!strcmp(name, "preempt_count_add"))
+               return true;
+       if (!strcmp(name, "preempt_count_sub"))
+               return true;
+       if (!strcmp(name, "__rcu_read_lock"))
+               return true;
+       if (!strcmp(name, "__rcu_read_unlock"))
+               return true;
+

static const char *trace_blacklist[] = {
    "migrate_disable",
    "migrate_enable",
    ...
};

it's not like it's one or two functions where copy-pasting strcmp might be fine

OK!

pw-bot: cr

quoted

        return false;
 }

--
2.50.1