On Mon, Jul 24, 2017 at 04:40:09PM -0700, Andi Kleen wrote:
> From: Andi Kleen <a...@linux.intel.com>
> Avoid adding redundant events while parsing an expression.
> When we add an "other" event check first if it already exists.

got this:

[jolsa@krava perf]$ ./perf test expr -v
 6: Simple expression parser                   :
--- start ---
test child forked, pid 13589
syntax error
FAILED tests/expr.c:53 find other
test child finished with -1
---- end ----
Simple expression parser: FAILED!


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