[B][SRU][PATCH 0/1] selftests/ftrace: Fix bash specific "==" operator

[Po-Hsu Lin]

== Impact ==
With upstream commit a1d6cd88c "selftests/ftrace: event_triggers: wait
longer for test_event_enable" applied via stable update, ftrace in
Bionic proposed (4.15.0-207.218) is now failing with:

$ sudo ./ftracetest ./test.d/ftrace/func_event_triggers.tc
[1] ftrace - test for function event triggers [FAIL]
[2] (instance) ftrace - test for function event triggers [FAIL]

With -v added to the command you will see it failing with:
./ftracetest: 52: [: 0: unexpected operator

The "==" operator fix from 1e6b485c can solve this problem.

== Fix ==
* 1e6b485c selftests/ftrace: Fix bash specific "==" operator

This patch can be cherry-picked into Bionic. We have this fix in other
kernels already.

== Testcase ==
Running the kernel selftests/ftracetest with -v flag, it should no
longer show these two "test for function event triggers" test FAIL
because of this unexpected operator issue.

== Regression Potential ==
This affects only the selftest suite and only ftrace subtests. Any
change would only be observable there.

Masami Hiramatsu (Google) (1):
  selftests/ftrace: Fix bash specific "==" operator

 tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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2.7.4