linux-kernel - Re: [PATCH 01/15] perf/x86/lbr: Simplify the exposure check for the LBR

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Date:   Fri, 2 Sep 2022 11:05:52 +0800
From:   "Yang, Weijiang" <weijiang.yang@...el.com>
To:     Sean Christopherson <seanjc@...gle.com>
CC:     "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "like.xu.linux@...il.com" <like.xu.linux@...il.com>,
        "kan.liang@...ux.intel.com" <kan.liang@...ux.intel.com>,
        "Wang, Wei W" <wei.w.wang@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/15] perf/x86/lbr: Simplify the exposure check for the
 LBR_INFO registers


On 9/1/2022 10:19 PM, Sean Christopherson wrote:
> On Wed, Aug 31, 2022, Yang Weijiang wrote:
>> From: Like Xu <like.xu@...ux.intel.com>
>>
>> The x86_pmu.lbr_info is 0 unless explicitly initialized, so there's
>> no point checking x86_pmu.intel_cap.lbr_format.
>>
>> Cc: Peter Zijlstra <peterz@...radead.org>
>> Reviewed-by: Kan Liang <kan.liang@...ux.intel.com>
>> Reviewed-by: Andi Kleen <ak@...ux.intel.com>
>> Signed-off-by: Like Xu <like.xu@...ux.intel.com>
>> Signed-off-by: Yang Weijiang <weijiang.yang@...el.com>
>> Message-Id: <20220517154100.29983-3-weijiang.yang@...el.com>
>> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
>> ---
> No need to carry Paolo's SOB for patches that Paolo temporarily queued.  And please
> delete the "Message-Id" entries as well.
Sure, will remove them, thanks!