selftests/bpf: Skip timer cases when bpf_timer is not supported

When enable CONFIG_PREEMPT_RT, verifier will reject bpf_timer with
returning -EOPNOTSUPP.

Therefore, skip test cases when errno is EOPNOTSUPP.

cd tools/testing/selftests/bpf
./test_progs -t timer
125     free_timer:SKIP
456     timer:SKIP
457/1   timer_crash/array:SKIP
457/2   timer_crash/hash:SKIP
457     timer_crash:SKIP
458     timer_lockup:SKIP
459     timer_mim:SKIP
Summary: 5/0 PASSED, 6 SKIPPED, 0 FAILED

Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20250910125740.52172-3-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/tools/testing/selftests/bpf/prog_tests/free_timer.c b/tools/testing/selftests/bpf/prog_tests/free_timer.c
index b7b77a6b29799ce69620cae393663e7d149ce94c..0de8facca4c5bc18eb4ee041967e5c8ecfd9663f 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/free_timer.c
+++ b/tools/testing/selftests/bpf/prog_tests/free_timer.c
@@ -124,6 +124,10 @@ void test_free_timer(void)
        int err;
 
        skel = free_timer__open_and_load();
+       if (!skel && errno == EOPNOTSUPP) {
+               test__skip();
+               return;
+       }
        if (!ASSERT_OK_PTR(skel, "open_load"))
                return;
 

diff --git a/tools/testing/selftests/bpf/prog_tests/timer.c b/tools/testing/selftests/bpf/prog_tests/timer.c
index d66687f1ee6a8df52cb228010a293a3d4d102216..56f660ca567ba1306f4fa1bef559526bd7e9157f 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/timer.c
+++ b/tools/testing/selftests/bpf/prog_tests/timer.c
@@ -86,6 +86,10 @@ void serial_test_timer(void)
        int err;
 
        timer_skel = timer__open_and_load();
+       if (!timer_skel && errno == EOPNOTSUPP) {
+               test__skip();
+               return;
+       }
        if (!ASSERT_OK_PTR(timer_skel, "timer_skel_load"))
                return;
 

diff --git a/tools/testing/selftests/bpf/prog_tests/timer_crash.c b/tools/testing/selftests/bpf/prog_tests/timer_crash.c
index f74b82305da8c88488117b0b908029d2d2364250..b841597c8a3a3136c982a6f147d54d5921ee34ad 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/timer_crash.c
+++ b/tools/testing/selftests/bpf/prog_tests/timer_crash.c
@@ -12,6 +12,10 @@ static void test_timer_crash_mode(int mode)
        struct timer_crash *skel;
 
        skel = timer_crash__open_and_load();
+       if (!skel && errno == EOPNOTSUPP) {
+               test__skip();
+               return;
+       }
        if (!ASSERT_OK_PTR(skel, "timer_crash__open_and_load"))
                return;
        skel->bss->pid = getpid();

diff --git a/tools/testing/selftests/bpf/prog_tests/timer_lockup.c b/tools/testing/selftests/bpf/prog_tests/timer_lockup.c
index 1a2f99596916fbda35b12b6d91a88a7e8a32e1f3..eb303fa1e09af9ce4105476372e1ba3181be5e7d 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/timer_lockup.c
+++ b/tools/testing/selftests/bpf/prog_tests/timer_lockup.c
@@ -59,6 +59,10 @@ void test_timer_lockup(void)
        }
 
        skel = timer_lockup__open_and_load();
+       if (!skel && errno == EOPNOTSUPP) {
+               test__skip();
+               return;
+       }
        if (!ASSERT_OK_PTR(skel, "timer_lockup__open_and_load"))
                return;
 

diff --git a/tools/testing/selftests/bpf/prog_tests/timer_mim.c b/tools/testing/selftests/bpf/prog_tests/timer_mim.c
index 9ff7843909e7d3bf031a8d4c086321a2f6dc585c..c930c7d7105b9fc1678afad2107dea20b4a4fe7b 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/timer_mim.c
+++ b/tools/testing/selftests/bpf/prog_tests/timer_mim.c
@@ -65,6 +65,10 @@ void serial_test_timer_mim(void)
                goto cleanup;
 
        timer_skel = timer_mim__open_and_load();
+       if (!timer_skel && errno == EOPNOTSUPP) {
+               test__skip();
+               return;
+       }
        if (!ASSERT_OK_PTR(timer_skel, "timer_skel_load"))
                goto cleanup;