| commit | 4ea355b5368bde0574c12430df53334c4be3bdcf | [log] [tgz] |
|---|---|---|
| author | Michael Ellerman <michael@ellerman.id.au> | Fri Jun 28 18:15:14 2013 +1000 |
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Mon Jul 01 11:50:03 2013 +1000 |
| tree | a92aee5cfb16a4d48a6845cea84b55df7460fb63 | |
| parent | 0a48843d6c5114cfa4a9540ee4d6af87628cec01 [diff] |
powerpc/perf: Don't enable if we have zero events In power_pmu_enable() we still enable the PMU even if we have zero events. This should have no effect but doesn't make much sense. Instead just return after telling the hypervisor that we are not using the PMCs. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> CC: <stable@vger.kernel.org> [v3.10] Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>