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| author |   Yonghong Song <yhs@fb.com> | 2018-01-22 22:10:59 -0800 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-01-23 17:36:09 +0100 |
| commit | 35136920e100b85b15b2cfd1505453ba5b6c757f (patch) | |
| tree | f42723351328ede4f89acf8b9f26f076b36822d0 /tools/testing/selftests | |
| parent | bpf: fix incorrect kmalloc usage in lpm_trie MAP_GET_NEXT_KEY rcu region (diff) | |
| download | linux-dev-35136920e100b85b15b2cfd1505453ba5b6c757f.tar.xz linux-dev-35136920e100b85b15b2cfd1505453ba5b6c757f.zip | |
tools/bpf: fix a test failure in selftests prog test_verifier
Commit 111e6b45315c ("selftests/bpf: make test_verifier run most programs")
enables tools/testing/selftests/bpf/test_verifier unit cases to run
via bpf_prog_test_run command. With the latest code base,
test_verifier had one test case failure:
...
#473/p check deducing bounds from const, 2 FAIL retval 1 != 0
0: (b7) r0 = 1
1: (75) if r0 s>= 0x1 goto pc+1
R0=inv1 R1=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
2: (95) exit
from 1 to 3: R0=inv1 R1=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
3: (d5) if r0 s<= 0x1 goto pc+1
R0=inv1 R1=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
4: (95) exit
from 3 to 5: R0=inv1 R1=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
5: (1f) r1 -= r0
6: (95) exit
processed 7 insns (limit 131072), stack depth 0
...
The test case does not set return value in the test
structure and hence the return value from the prog run
is assumed to be 0. However, the actual return value is 1.
As a result, the test failed. The fix is to correctly set
the return value in the test structure.
Fixes: 111e6b45315c ("selftests/bpf: make test_verifier run most programs")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/bpf/test_verifier.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index fb82d29ee863..9e7075b268be 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -8766,6 +8766,7 @@ static struct bpf_test tests[] = { BPF_EXIT_INSN(), }, .result = ACCEPT, + .retval = 1, }, { "check deducing bounds from const, 3", |