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authorXu Kuohai <xukuohai@huawei.com>2022-10-11 08:01:07 -0400
committerAndrii Nakryiko <andrii@kernel.org>2022-10-13 10:53:28 -0700
commit4abdb1d5b250df4b5b3afd394d5e2fa516064c04 (patch)
tree217f504f0e1b5ec77edd58d37180bf5d58020e1b /tools
parent6d2e21dc4db3933db65293552ecc1ede26febeca (diff)
downloadlinux-4abdb1d5b250df4b5b3afd394d5e2fa516064c04.tar.bz2
selftests/bpf: Fix error failure of case test_xdp_adjust_tail_grow
test_xdp_adjust_tail_grow failed with ipv6: test_xdp_adjust_tail_grow:FAIL:ipv6 unexpected error: -28 (errno 28) The reason is that this test case tests ipv4 before ipv6, and when ipv4 test finished, topts.data_size_out was set to 54, which is smaller than the ipv6 output data size 114, so ipv6 test fails with NOSPC error. Fix it by reset topts.data_size_out to sizeof(buf) before testing ipv6. Fixes: 04fcb5f9a104 ("selftests/bpf: Migrate from bpf_prog_test_run") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-6-xukuohai@huaweicloud.com
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c1
1 files changed, 1 insertions, 0 deletions
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 9b9cf8458adf..009ee37607df 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
@@ -63,6 +63,7 @@ static void test_xdp_adjust_tail_grow(void)
expect_sz = sizeof(pkt_v6) + 40; /* Test grow with 40 bytes */
topts.data_in = &pkt_v6;
topts.data_size_in = sizeof(pkt_v6);
+ topts.data_size_out = sizeof(buf);
err = bpf_prog_test_run_opts(prog_fd, &topts);
ASSERT_OK(err, "ipv6");
ASSERT_EQ(topts.retval, XDP_TX, "ipv6 retval");