perf test: Skip watchpoint tests if no watchpoints available

On IBM Power9, perf watchpoint tests fail since no hardware breakpoints
are available. Detect this by checking the error returned by
perf_event_open() and skip the tests in that case.

Reported-by: Disha Goel <[email protected]>
Signed-off-by: Naveen N. Rao <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Reviewed-by: Kajol Jain<[email protected]>
Tested-by: Kajol Jain<[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]

0 files changed, 0 insertions, 0 deletions