Re: [PATCH bpf-next 2/3] selftests/bpf: skip recursive functions for kprobe_multi
From: Andrii Nakryiko <hidden>
Date: 2025-08-20 22:47:44
Also in:
bpf, linux-kselftest, lkml, llvm
On Mon, Aug 18, 2025 at 8:40 PM Menglong Dong [off-list ref] wrote:
quoted hunk ↗ jump to hunk
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
pw-bot: cr
return false; } -- 2.50.1