linux-kernel - Re: [PATCH v1 1/2] s390/kvm: split kvm_s390_real_to

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Message-ID: <43e5cf87-d811-3c0c-b605-f64baa9ae006@de.ibm.com>
Date:   Mon, 22 Mar 2021 13:19:01 +0100
From:   Christian Borntraeger <borntraeger@...ibm.com>
To:     Heiko Carstens <hca@...ux.ibm.com>,
        David Hildenbrand <david@...hat.com>
Cc:     Thomas Huth <thuth@...hat.com>,
        Claudio Imbrenda <imbrenda@...ux.ibm.com>,
        linux-kernel@...r.kernel.org, frankja@...ux.ibm.com,
        cohuck@...hat.com, kvm@...r.kernel.org, linux-s390@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH v1 1/2] s390/kvm: split kvm_s390_real_to_abs



On 22.03.21 12:12, Heiko Carstens wrote:
> On Mon, Mar 22, 2021 at 10:53:46AM +0100, David Hildenbrand wrote:
>>>> diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h
>>>> index daba10f76936..7c72a5e3449f 100644
>>>> --- a/arch/s390/kvm/gaccess.h
>>>> +++ b/arch/s390/kvm/gaccess.h
>>>> @@ -18,17 +18,14 @@
>>>>     /**
>>>>      * kvm_s390_real_to_abs - convert guest real address to guest absolute address
>>>> - * @vcpu - guest virtual cpu
>>>> + * @prefix - guest prefix
>>>>      * @gra - guest real address
>>>>      *
>>>>      * Returns the guest absolute address that corresponds to the passed guest real
>>>> - * address @gra of a virtual guest cpu by applying its prefix.
>>>> + * address @gra of by applying the given prefix.
>>>>      */
>>>> -static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu,
>>>> -						 unsigned long gra)
>>>> +static inline unsigned long _kvm_s390_real_to_abs(u32 prefix, unsigned long gra)
>>>
>>> <bikeshedding>
>>> Just a matter of taste, but maybe this could be named differently?
>>> kvm_s390_real2abs_prefix() ? kvm_s390_prefix_real_to_abs()?
>>> </bikeshedding>
>>
>> +1, I also dislike these "_.*" style functions here.
> 
> Yes, let's bikeshed then :)
> 
> Could you then please try to rename page_to* and everything that looks
> similar to page2* please? I'm wondering what the response will be..

Given that this is stable material (due to patch 2), can we try to minimize
the bikeshedding to everything that his touched by this patch?


Claudio, can you respin the series addressing the comments?
I will then either add this to next or fold that into the existing next patches.
Not sure yet.