diff options
| author | Yonghong Song <yhs@fb.com> | 2017-11-21 11:23:40 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2017-11-21 21:23:05 +0100 |
| commit | f1a8b8e3d98b0b3d1d88d119f52cc85d05ab3189 (patch) | |
| tree | 9634bc10802301580cdb1c4771a04213de4d06df /tools/perf | |
| parent | 6547f424be5d9d75c78c146ed6e9f71be1c43981 (diff) | |
bpf: change bpf_probe_write_user to bpf_trace_printk in test_verifier
There are four tests in test_verifier using bpf_probe_write_user
helper. These four tests will emit the following kernel messages
[ 12.974753] test_verifier[220] is installing a program with bpf_probe_write_user
helper that may corrupt user memory!
[ 12.979285] test_verifier[220] is installing a program with bpf_probe_write_user
helper that may corrupt user memory!
......
This may confuse certain users. This patch replaces bpf_probe_write_user
with bpf_trace_printk. The test_verifier already uses bpf_trace_printk
earlier in the test and a trace_printk warning message has been printed.
So this patch does not emit any more kernel messages.
Fixes: b6ff63911232 ("bpf: fix and add test cases for ARG_CONST_SIZE_OR_ZERO semantics change")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/perf')
0 files changed, 0 insertions, 0 deletions