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path: root/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
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Diffstat (limited to 'tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c')
-rw-r--r--tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
index a06daebc75c9..66787e99ba1b 100644
--- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
+++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
@@ -555,7 +555,11 @@ static int bpf_dummy_reg(void *kdata)
{
struct bpf_testmod_ops *ops = kdata;
- ops->test_2(4, 3);
+ /* Some test cases (ex. struct_ops_maybe_null) may not have test_2
+ * initialized, so we need to check for NULL.
+ */
+ if (ops->test_2)
+ ops->test_2(4, 3);
return 0;
}
@@ -573,9 +577,16 @@ static void bpf_testmod_test_2(int a, int b)
{
}
+static int bpf_testmod_ops__test_maybe_null(int dummy,
+ struct task_struct *task__nullable)
+{
+ return 0;
+}
+
static struct bpf_testmod_ops __bpf_testmod_ops = {
.test_1 = bpf_testmod_test_1,
.test_2 = bpf_testmod_test_2,
+ .test_maybe_null = bpf_testmod_ops__test_maybe_null,
};
struct bpf_struct_ops bpf_bpf_testmod_ops = {