From: Michael Ellerman <mpe@ellerman.id.au>
Date: Fri, 14 Mar 2014 05:00:30 +0000 (+1100)
Subject: powerpc/perf: Reject EBB events which specify a sample_type
X-Git-Tag: v3.15-rc1~124^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58b5fb00498ddaaa3f6582751e9eb731189ee4c8;p=pandora-kernel.git

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>
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