diff mbox series

[bpf-next,10/14] selftests/bpf: add tests for ring__size

Message ID 20230914231123.193901-11-martin.kelly@crowdstrike.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series add libbpf getters for individual ringbuffers | expand

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netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers warning 12 maintainers not CCed: linux-kselftest@vger.kernel.org shuah@kernel.org martin.lau@linux.dev jolsa@kernel.org haoluo@google.com kpsingh@kernel.org sdf@google.com john.fastabend@gmail.com yonghong.song@linux.dev davemarchevsky@fb.com mykolal@fb.com song@kernel.org
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netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 18 lines checked
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Commit Message

Martin Kelly Sept. 14, 2023, 11:11 p.m. UTC 
Add tests for the new API ring__size.

Signed-off-by: Martin Kelly <martin.kelly@crowdstrike.com>
---
 tools/testing/selftests/bpf/prog_tests/ringbuf.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf.c b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
index e4e1171e2e4d..962dc1bc5f3b 100644
--- a/tools/testing/selftests/bpf/prog_tests/ringbuf.c
+++ b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
@@ -92,7 +92,7 @@  static void ringbuf_subtest(void)
 	int page_size = getpagesize();
 	void *mmap_ptr, *tmp_ptr;
 	struct ring *ring;
-	unsigned long avail_data, cons_pos, prod_pos;
+	unsigned long avail_data, ring_size, cons_pos, prod_pos;
 
 	skel = test_ringbuf_lskel__open();
 	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
@@ -189,6 +189,10 @@  static void ringbuf_subtest(void)
 	CHECK(avail_data != 3 * rec_sz,
 	      "err_ring_avail_size", "exp %ld, got %ld\n",
 	      3L * rec_sz, avail_data);
+	ring_size = ring__size(ring);
+	CHECK(ring_size != page_size,
+	      "err_ring_ring_size", "exp %ld, got %ld\n",
+	      (long)page_size, ring_size);
 	cons_pos = ring__consumer_pos(ring);
 	CHECK(cons_pos != 0,
 	      "err_ring_cons_pos", "exp %ld, got %ld\n",