linux-kernel - Re: [PATCH] KVM: vmx: remove unreachable statement in vmx_get_msr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <de7e3807522a493c8cb6012063491a96@huawei.com>
Date:   Sat, 7 Dec 2019 06:53:02 +0000
From:   linmiaohe <linmiaohe@...wei.com>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        Wanpeng Li <kernellwp@...il.com>
CC:     Liran Alon <liran.alon@...cle.com>,
        "rkrcmar@...hat.com" <rkrcmar@...hat.com>,
        "sean.j.christopherson@...el.com" <sean.j.christopherson@...el.com>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "wanpengli@...cent.com" <wanpengli@...cent.com>,
        "jmattson@...gle.com" <jmattson@...gle.com>,
        "joro@...tes.org" <joro@...tes.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>, "hpa@...or.com" <hpa@...or.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>
Subject: Re: [PATCH] KVM: vmx: remove unreachable statement in
 vmx_get_msr_feature()


Paolo Bonzini <pbonzini@...hat.com> wrote:
>> Wanpeng Li <kernellwp@...il.com> wrote:
>>>>
>>>>>
>>>>> I personally just prefer to remove the “default” case and change this “return 0;” to “return 1;”.
>>>>> But it’s a matter of taste of course.
>>>>>
>>>> Yes. As what " Turnip greens, all have love " said. ^_^
>>>
>>> Actually it is a great appreciated to introduce something more useful instead of tons of cleanups, I saw guys did one cleanup and can incur several bugs before.
>>>
>> I'd like to introduce something more useful, but side corner cleanups 
>> may be hard to found out something to introduce. And such cleanups can 
>> also be validated by code inspection to avoid something bad. Many thanks.
>> 
>
>Yeah, I think you have been doing a good job.  Usually, when the cleanups introduce bugs there are many other "suspicious" things.  For me it's clear that you're learning the code and not just messing around.
>
>Paolo

Many thanks for your approve. I really feel grateful for it. In fact, I am investigating the
code and expect a deep understanding. But it's really a enormous, sophisticated and
wonderful world, what I can do now is try to keep the code clean. Maybe I could introduce some useful
features someday. Many thanks again.

Best wishes.