selftests/bpf: Clean up sys_nanosleep uses

This patch cleans up a few things:

  * dynptr_fail.c:
    There is no sys_nanosleep tracepoint. dynptr_fail only tests
    that the prog load fails, so just SEC("?raw_tp") suffices here.

  * test_bpf_cookie:
    There is no sys_nanosleep kprobe. The prog is loaded in
    userspace through bpf_program__attach_kprobe_opts passing in
    SYS_NANOSLEEP_KPROBE_NAME, so just SEC("k{ret}probe") suffices here.

  * test_helper_restricted:
    There is no sys_nanosleep kprobe. test_helper_restricted only tests
    that the prog load fails, so just SEC("?kprobe")( suffices here.

There are no functional changes.

Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220805171405.2272103-1-joannelkoong@gmail.com

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/testing/selftests/bpf/progs/test_helper_restricted.c b/tools/testing/selftests/bpf/progs/test_helper_restricted.c
index 20ef9d433b97..5715c569ec03 100644
--- a/tools/testing/selftests/bpf/progs/test_helper_restricted.c
+++ b/tools/testing/selftests/bpf/progs/test_helper_restricted.c
@@ -72,7 +72,7 @@ int tp_timer(void *ctx)
 	return 0;
 }
 
-SEC("?kprobe/sys_nanosleep")
+SEC("?kprobe")
 int kprobe_timer(void *ctx)
 {
 	timer_work();
@@ -104,7 +104,7 @@ int tp_spin_lock(void *ctx)
 	return 0;
 }
 
-SEC("?kprobe/sys_nanosleep")
+SEC("?kprobe")
 int kprobe_spin_lock(void *ctx)
 {
 	spin_lock_work();