[PATCH bpf-next] Enable CONFIG_FPROBE for self tests

["Daniel Müller" <deso@posteo.net>]

Some of the BPF selftests are failing when running with a rather bare
bones configuration based on tools/testing/selftests/bpf/config.
Specifically, we see a bunch of failures due to errno 95:

  > test_attach_api:PASS:fentry_raw_skel_load 0 nsec
  > libbpf: prog 'test_kprobe_manual': failed to attach: Operation not supported
  > test_attach_api:FAIL:bpf_program__attach_kprobe_multi_opts unexpected error: -95
  > 79 /6     kprobe_multi_test/attach_api_syms:FAIL

The cause of these is that CONFIG_FPROBE is missing. With this change we
add this configuration value to the BPF selftests config.

Signed-off-by: Daniel Müller <deso@posteo.net>
---
 tools/testing/selftests/bpf/config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config
index 763db6..08c6e5a 100644
--- a/tools/testing/selftests/bpf/config
+++ b/tools/testing/selftests/bpf/config
@@ -53,3 +53,4 @@ CONFIG_NF_DEFRAG_IPV4=y
 CONFIG_NF_DEFRAG_IPV6=y
 CONFIG_NF_CONNTRACK=y
 CONFIG_USERFAULTFD=y
+CONFIG_FPROBE=y
-- 
2.30.2