[PATCH bpf-next v5] selftests/bpf: do not export subtest as standalone test

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Two subtests in ksyms_module.c are not qualified as static, so these
subtests are exported as standalone tests in tests.h and lead to
confusion for the output of "./test_progs -t ksyms_module".

By using the following command:

  grep "^void \(serial_\)\?test_[a-zA-Z0-9_]\+(\(void\)\?)" \
      tools/testing/selftests/bpf/prog_tests/*.c | \
	awk -F : '{print $1}' | sort | uniq -c | awk '$1 != 1'

find out that other tests also have the similar problem, so fix
these tests by marking subtests in these tests as static.

Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
---
v5:
 * keep the only subtest in xdp_adjust_frags.c to follow
   the naming convention for test

v4: https://lore.kernel.org/bpf/20220206043107.18549-1-houtao1@xxxxxxxxxx
 * rebased on bpf-next

v3: https://lore.kernel.org/bpf/20220130092917.14544-1-hotforest@xxxxxxxxx
  * add a new patch to unexport unnecessary subtests

v2: https://lore.kernel.org/bpf/20220127071532.384888-1-houtao1@xxxxxxxxxx
  * add a test to check whether imm will be overflowed for kfunc call

v1: https://lore.kernel.org/bpf/20220119144942.305568-1-houtao1@xxxxxxxxxx
---
 tools/testing/selftests/bpf/prog_tests/ksyms_module.c      | 4 ++--
 tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c  | 2 +-
 tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c   | 4 ++--
 tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c | 4 ++--
 tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
index ecc58c9e7631..a1ebac70ec29 100644
--- a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
@@ -6,7 +6,7 @@
 #include "test_ksyms_module.lskel.h"
 #include "test_ksyms_module.skel.h"
 
-void test_ksyms_module_lskel(void)
+static void test_ksyms_module_lskel(void)
 {
 	struct test_ksyms_module_lskel *skel;
 	int err;
@@ -33,7 +33,7 @@ void test_ksyms_module_lskel(void)
 	test_ksyms_module_lskel__destroy(skel);
 }
 
-void test_ksyms_module_libbpf(void)
+static void test_ksyms_module_libbpf(void)
 {
 	struct test_ksyms_module *skel;
 	int err;
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c
index 134d0ac32f59..d18e6f343c48 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c
@@ -2,7 +2,7 @@
 #include <test_progs.h>
 #include <network_helpers.h>
 
-void test_xdp_update_frags(void)
+static void test_xdp_update_frags(void)
 {
 	const char *file = "./test_xdp_update_frags.o";
 	struct bpf_program *prog;
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
index 528a8c387720..21ceac24e174 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
@@ -133,7 +133,7 @@ static void test_xdp_adjust_tail_grow2(void)
 	bpf_object__close(obj);
 }
 
-void test_xdp_adjust_frags_tail_shrink(void)
+static void test_xdp_adjust_frags_tail_shrink(void)
 {
 	const char *file = "./test_xdp_adjust_tail_shrink.o";
 	__u32 exp_size;
@@ -200,7 +200,7 @@ void test_xdp_adjust_frags_tail_shrink(void)
 	bpf_object__close(obj);
 }
 
-void test_xdp_adjust_frags_tail_grow(void)
+static void test_xdp_adjust_frags_tail_grow(void)
 {
 	const char *file = "./test_xdp_adjust_tail_grow.o";
 	__u32 exp_size;
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c b/tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c
index b353e1f3acb5..f775a1613833 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c
@@ -8,7 +8,7 @@
 
 #define IFINDEX_LO	1
 
-void test_xdp_with_cpumap_helpers(void)
+static void test_xdp_with_cpumap_helpers(void)
 {
 	struct test_xdp_with_cpumap_helpers *skel;
 	struct bpf_prog_info info = {};
@@ -68,7 +68,7 @@ void test_xdp_with_cpumap_helpers(void)
 	test_xdp_with_cpumap_helpers__destroy(skel);
 }
 
-void test_xdp_with_cpumap_frags_helpers(void)
+static void test_xdp_with_cpumap_frags_helpers(void)
 {
 	struct test_xdp_with_cpumap_frags_helpers *skel;
 	struct bpf_prog_info info = {};
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c b/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c
index 463a72fc3e70..ead40016c324 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c
@@ -81,7 +81,7 @@ static void test_neg_xdp_devmap_helpers(void)
 	}
 }
 
-void test_xdp_with_devmap_frags_helpers(void)
+static void test_xdp_with_devmap_frags_helpers(void)
 {
 	struct test_xdp_with_devmap_frags_helpers *skel;
 	struct bpf_prog_info info = {};
-- 
2.27.0




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