linux-kernel - [tip:perf/core] perf: Remove perf_event

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Date:	Thu, 21 Jul 2011 19:31:16 GMT
From:	tip-bot for Lin Ming <ming.m.lin@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	robert.richter@....com, a.p.zijlstra@...llo.nl,
	ming.m.lin@...el.com, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perf/core] perf: Remove perf_event_attr::type check

Commit-ID:  9985c20f9e4aee6857c08246b273a3695a52b929
Gitweb:     http://git.kernel.org/tip/9985c20f9e4aee6857c08246b273a3695a52b929
Author:     Lin Ming <ming.m.lin@...el.com>
AuthorDate: Thu, 30 Jun 2011 08:09:55 +0000
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 21 Jul 2011 20:41:55 +0200

perf: Remove perf_event_attr::type check

PMU type id can be allocated dynamically, so perf_event_attr::type check
when copying attribute from userspace to kernel is not valid.

Signed-off-by: Lin Ming <ming.m.lin@...el.com>
Cc: Robert Richter <robert.richter@....com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1309421396-17438-4-git-send-email-ming.m.lin@intel.com
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/events/core.c |    7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 0567e32..b8785e2 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5926,13 +5926,6 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
 	if (ret)
 		return -EFAULT;
 
-	/*
-	 * If the type exists, the corresponding creation will verify
-	 * the attr->config.
-	 */
-	if (attr->type >= PERF_TYPE_MAX)
-		return -EINVAL;
-
 	if (attr->__reserved_1)
 		return -EINVAL;
 
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