[PATCH v2 2/2] selftests/bpf: Convert test_sysctl to prog_tests

From: Jerome Marchand
Date: Tue Jun 10 2025 - 05:22:17 EST


Convert test_sysctl test to prog_tests with minimal change to the
tests themselves.

Signed-off-by: Jerome Marchand <jmarchan@xxxxxxxxxx>
---
tools/testing/selftests/bpf/.gitignore | 1 -
tools/testing/selftests/bpf/Makefile | 5 ++-
.../bpf/{ => prog_tests}/test_sysctl.c | 32 ++++---------------
3 files changed, 9 insertions(+), 29 deletions(-)
rename tools/testing/selftests/bpf/{ => prog_tests}/test_sysctl.c (98%)

diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index e2a2c46c008b1..3d8378972d26c 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -21,7 +21,6 @@ test_lirc_mode2_user
flow_dissector_load
test_tcpnotify_user
test_libbpf
-test_sysctl
xdping
test_cpp
*.d
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 66bb50356be08..53dc08d905bd1 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -70,7 +70,7 @@ endif
# Order correspond to 'make run_tests' order
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_progs \
test_sockmap \
- test_tcpnotify_user test_sysctl \
+ test_tcpnotify_user \
test_progs-no_alu32
TEST_INST_SUBDIRS := no_alu32

@@ -215,7 +215,7 @@ ifeq ($(VMLINUX_BTF),)
$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
endif

-# Define simple and short `make test_progs`, `make test_sysctl`, etc targets
+# Define simple and short `make test_progs`, `make test_maps`, etc targets
# to build individual tests.
# NOTE: Semicolon at the end is critical to override lib.mk's default static
# rule for binaries.
@@ -324,7 +324,6 @@ NETWORK_HELPERS := $(OUTPUT)/network_helpers.o
$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS)
$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS)
$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS)
-$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS)
$(OUTPUT)/test_tag: $(TESTING_HELPERS)
$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS)
$(OUTPUT)/xdping: $(TESTING_HELPERS)
diff --git a/tools/testing/selftests/bpf/test_sysctl.c b/tools/testing/selftests/bpf/prog_tests/test_sysctl.c
similarity index 98%
rename from tools/testing/selftests/bpf/test_sysctl.c
rename to tools/testing/selftests/bpf/prog_tests/test_sysctl.c
index bcdbd27f22f08..049671361f8fa 100644
--- a/tools/testing/selftests/bpf/test_sysctl.c
+++ b/tools/testing/selftests/bpf/prog_tests/test_sysctl.c
@@ -1,22 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Facebook

-#include <fcntl.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <linux/filter.h>
-
-#include <bpf/bpf.h>
-#include <bpf/libbpf.h>
-
-#include <bpf/bpf_endian.h>
-#include "bpf_util.h"
+#include "test_progs.h"
#include "cgroup_helpers.h"
-#include "testing_helpers.h"

#define CG_PATH "/foo"
#define MAX_INSNS 512
@@ -1608,26 +1594,22 @@ static int run_tests(int cgfd)
return fails ? -1 : 0;
}

-int main(int argc, char **argv)
+void test_sysctl(void)
{
int cgfd = -1;
- int err = 0;

cgfd = cgroup_setup_and_join(CG_PATH);
- if (cgfd < 0)
- goto err;
+ if (CHECK_FAIL(cgfd < 0))
+ goto out;

/* Use libbpf 1.0 API mode */
libbpf_set_strict_mode(LIBBPF_STRICT_ALL);

- if (run_tests(cgfd))
- goto err;
+ if (CHECK_FAIL(run_tests(cgfd)))
+ goto out;

- goto out;
-err:
- err = -1;
out:
close(cgfd);
cleanup_cgroup_environment();
- return err;
+ return;
}
--
2.49.0