perf test: Do not fail Intel-PT misc test w/o libpython
The virtual LBR test uses a python script to check the max size of branch stack in the Intel-PT generated LBR. But it didn't check whether python scripting is available (as it's optional). Let's skip the test if the python support is not available. Fixes: f77811a0 ("perf test: test_intel_pt.sh: Add 9 tests") Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Ammy Yi <ammy.yi@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20221021181055.60183-1-namhyung@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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