tree 211bd7f808e0c8ce824232a43d5641f0d878af65
parent c2e37a2626a7471875f3a6452b99dfd3809972b9
author Michael Ellerman <mpe@ellerman.id.au> 1394773230 +1100
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1395614905 +1100

powerpc/perf: Reject EBB events which specify a sample_type

Although we already block EBB events which request sampling using
sample_period, technically it's possible for an event to set sample_type
but not sample_period.

Nothing terrible will happen if an EBB event does specify sample_type,
but it signals a major confusion on the part of userspace, and so we do
them the favor of rejecting it.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>