1 files changed, 45 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/map_ptr.c b/tools/testing/selftests/bpf/prog_tests/map_ptr.c
new file mode 100644
index 000000000000..43e502acf050
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_ptr.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "map_ptr_kern.lskel.h"
+
+void test_map_ptr(void)
+{
+	struct map_ptr_kern_lskel *skel;
+	char buf[128];
+	int err;
+	int page_size = getpagesize();
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	skel = map_ptr_kern_lskel__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->maps.m_ringbuf.max_entries = page_size;
+
+	err = map_ptr_kern_lskel__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	skel->bss->page_size = page_size;
+
+	err = bpf_prog_test_run_opts(skel->progs.cg_skb.prog_fd, &topts);
+
+	if (!ASSERT_OK(err, "test_run"))
+		goto cleanup;
+
+	if (!ASSERT_NEQ(topts.retval, 0, "test_run retval"))
+		goto cleanup;
+
+cleanup:
+	map_ptr_kern_lskel__destroy(skel);
+}