linux-kernel - Re: [PATCH v5 12/20] x86: perf: intel

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Message-ID: <8761f93o0g.fsf@ashishki-desk.ger.corp.intel.com>
Date:	Fri, 24 Oct 2014 10:50:07 +0300
From:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	Robert Richter <rric@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <ak@...ux.intel.com>, kan.liang@...el.com,
	adrian.hunter@...el.com, acme@...radead.org
Subject: Re: [PATCH v5 12/20] x86: perf: intel_pt: Intel PT PMU driver

Peter Zijlstra <peterz@...radead.org> writes:

> On Mon, Oct 13, 2014 at 04:45:40PM +0300, Alexander Shishkin wrote:
>> +	if (test_cpu_cap(&boot_cpu_data, X86_FEATURE_INTEL_PT)) {
>> +		for (i = 0; i < PT_CPUID_LEAVES; i++)
>> +			cpuid_count(20, i,
>> +				    &pt_pmu.caps[CR_EAX + i * 4],
>> +				    &pt_pmu.caps[CR_EBX + i * 4],
>> +				    &pt_pmu.caps[CR_ECX + i * 4],
>> +				    &pt_pmu.caps[CR_EDX + i * 4]);
>> +	} else
>> +		return -ENODEV;
>
> Please use {} for every multi-line stmt, even if its a single stmt, also
> use {} in both branches of a condition, even if only one strictly
> requires it.

Ok.
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