selftests/bpf: Remove ksyms_weak_lskel test

JIRA: https://issues.redhat.com/browse/RHEL-48593

Upstream status: RHEL-only

The test fails to build in Brew (as the build needs to read
/proc/kallsysm which has permission 000 in Brew builders) so disable it
until Brew builders are fixed.

Signed-off-by: Viktor Malik <vmalik@redhat.com>
Signed-off-by: Artem Savkov <asavkov@redhat.com>

Author: sm00th

tools/testing/selftests/bpf/Makefile

@@ -532,7 +532,7 @@ LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c 		\
 	test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c
 
 # Generate both light skeleton and libbpf skeleton for these
-LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \
+LSKELS_EXTRA := test_ksyms_module.c kfunc_call_test.c \
 	kfunc_call_test_subprog.c
 SKEL_BLACKLIST += $$(LSKELS)
 

tools/testing/selftests/bpf/prog_tests/ksyms_btf.c

@@ -7,7 +7,6 @@
 #include "test_ksyms_btf.skel.h"
 #include "test_ksyms_btf_null_check.skel.h"
 #include "test_ksyms_weak.skel.h"
-#include "test_ksyms_weak.lskel.h"
 #include "test_ksyms_btf_write_check.skel.h"
 
 static int duration;
@@ -111,33 +110,6 @@ static void test_weak_syms(void)
 	test_ksyms_weak__destroy(skel);
 }
 
-static void test_weak_syms_lskel(void)
-{
-	struct test_ksyms_weak_lskel *skel;
-	struct test_ksyms_weak_lskel__data *data;
-	int err;
-
-	skel = test_ksyms_weak_lskel__open_and_load();
-	if (!ASSERT_OK_PTR(skel, "test_ksyms_weak_lskel__open_and_load"))
-		return;
-
-	err = test_ksyms_weak_lskel__attach(skel);
-	if (!ASSERT_OK(err, "test_ksyms_weak_lskel__attach"))
-		goto cleanup;
-
-	/* trigger tracepoint */
-	usleep(1);
-
-	data = skel->data;
-	ASSERT_EQ(data->out__existing_typed, 0, "existing typed ksym");
-	ASSERT_NEQ(data->out__existing_typeless, -1, "existing typeless ksym");
-	ASSERT_EQ(data->out__non_existent_typeless, 0, "nonexistent typeless ksym");
-	ASSERT_EQ(data->out__non_existent_typed, 0, "nonexistent typed ksym");
-
-cleanup:
-	test_ksyms_weak_lskel__destroy(skel);
-}
-
 static void test_write_check(bool test_handler1)
 {
 	struct test_ksyms_btf_write_check *skel;
@@ -180,9 +152,6 @@ void test_ksyms_btf(void)
 	if (test__start_subtest("weak_ksyms"))
 		test_weak_syms();
 
-	if (test__start_subtest("weak_ksyms_lskel"))
-		test_weak_syms_lskel();
-
 	if (test__start_subtest("write_check1"))
 		test_write_check(true);