diff mbox series

[bpf,v3,5/6] selftests/bpf: Fix error failure of case test_xdp_adjust_tail_grow

Message ID 20221010142553.776550-6-xukuohai@huawei.com (mailing list archive)
State Changes Requested
Delegated to: BPF
Headers show
Series Fix bugs found by ASAN when running selftests | expand

Checks

Context Check Description
bpf/vmtest-bpf-PR fail PR summary
bpf/vmtest-bpf-VM_Test-4 success Logs for llvm-toolchain
bpf/vmtest-bpf-VM_Test-5 success Logs for set-matrix
bpf/vmtest-bpf-VM_Test-2 success Logs for build for x86_64 with gcc
bpf/vmtest-bpf-VM_Test-3 success Logs for build for x86_64 with llvm-16
bpf/vmtest-bpf-VM_Test-1 success Logs for build for s390x with gcc
bpf/vmtest-bpf-VM_Test-15 success Logs for test_verifier on s390x with gcc
bpf/vmtest-bpf-VM_Test-16 success Logs for test_verifier on x86_64 with gcc
bpf/vmtest-bpf-VM_Test-17 success Logs for test_verifier on x86_64 with llvm-16
netdev/tree_selection success Clearly marked for bpf
netdev/fixes_present success Fixes tag present in non-next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 20 of 20 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 7 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
bpf/vmtest-bpf-VM_Test-12 fail Logs for test_progs_no_alu32 on s390x with gcc
bpf/vmtest-bpf-VM_Test-13 success Logs for test_progs_no_alu32 on x86_64 with gcc
bpf/vmtest-bpf-VM_Test-14 success Logs for test_progs_no_alu32 on x86_64 with llvm-16
bpf/vmtest-bpf-VM_Test-6 success Logs for test_maps on s390x with gcc
bpf/vmtest-bpf-VM_Test-7 success Logs for test_maps on x86_64 with gcc
bpf/vmtest-bpf-VM_Test-8 success Logs for test_maps on x86_64 with llvm-16
bpf/vmtest-bpf-VM_Test-10 success Logs for test_progs on x86_64 with gcc
bpf/vmtest-bpf-VM_Test-11 success Logs for test_progs on x86_64 with llvm-16
bpf/vmtest-bpf-VM_Test-9 fail Logs for test_progs on s390x with gcc

Commit Message

Xu Kuohai Oct. 10, 2022, 2:25 p.m. UTC 
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>
---
 tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

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");