From: tip-bot for Cyrill Gorcunov <gorcunov@openvz.org>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com,
gorcunov@openvz.org, peterz@infradead.org, fweisbec@gmail.com,
ming.m.lin@intel.com, tglx@linutronix.de, mingo@elte.hu
Subject: [tip:perf/core] x86, perf: P4 PMU -- Get rid of redundant check for array index
Date: Sat, 8 May 2010 16:10:17 GMT [thread overview]
Message-ID: <tip-3f51b7119d052827dbb0e40c966acdf2bdc6f47f@git.kernel.org> (raw)
In-Reply-To: <20100508112717.130386882@openvz.org>
Commit-ID: 3f51b7119d052827dbb0e40c966acdf2bdc6f47f
Gitweb: http://git.kernel.org/tip/3f51b7119d052827dbb0e40c966acdf2bdc6f47f
Author: Cyrill Gorcunov <gorcunov@openvz.org>
AuthorDate: Sat, 8 May 2010 15:25:53 +0400
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Sat, 8 May 2010 14:17:53 +0200
x86, perf: P4 PMU -- Get rid of redundant check for array index
The caller already has done such a check.
And it was wrong anyway, it had to be '>=' rather than '>'
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Lin Ming <ming.m.lin@intel.com>
LKML-Reference: <20100508112717.130386882@openvz.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/kernel/cpu/perf_event_p4.c | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index ca40180..b8c2d37 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -406,11 +406,6 @@ static u64 p4_pmu_event_map(int hw_event)
unsigned int esel;
u64 config;
- if (hw_event > ARRAY_SIZE(p4_general_events)) {
- printk_once(KERN_ERR "P4 PMU: Bad index: %i\n", hw_event);
- return 0;
- }
-
config = p4_general_events[hw_event];
bind = p4_config_get_bind(config);
esel = P4_OPCODE_ESEL(bind->opcode);
next prev parent reply other threads:[~2010-05-08 16:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-08 11:25 [patch 0/4] perf,p4 series for -tip Cyrill Gorcunov
2010-05-08 11:25 ` [patch 1/4] x86,perf: P4 PMU -- configurate predefined events Cyrill Gorcunov
2010-05-08 11:33 ` Cyrill Gorcunov
2010-05-10 12:43 ` Robert Richter
2010-05-08 11:25 ` [patch 2/4] x86,perf: P4 PMU -- protect sensible procedures from preemption Cyrill Gorcunov
2010-05-08 16:09 ` [tip:perf/core] x86, perf: " tip-bot for Cyrill Gorcunov
2010-05-08 11:25 ` [patch 3/4] x86,perf: P4 PMU -- Get rid of redundant check for array index Cyrill Gorcunov
2010-05-08 16:10 ` tip-bot for Cyrill Gorcunov [this message]
2010-05-08 11:25 ` [patch 4/4] x86,perf: P4 PMU -- check for proper event index in RAW events Cyrill Gorcunov
2010-05-08 16:10 ` [tip:perf/core] x86, perf: " tip-bot for Cyrill Gorcunov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=tip-3f51b7119d052827dbb0e40c966acdf2bdc6f47f@git.kernel.org \
--to=gorcunov@openvz.org \
--cc=fweisbec@gmail.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=ming.m.lin@intel.com \
--cc=mingo@elte.hu \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.