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: b6ff6391 ("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>
parent
6547f424
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