linux-kernel - Re: [PATCH 1/5] KVM: selftests: Implement memcmp(), memcpy(), and memset() for guest use

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Date:   Thu, 22 Sep 2022 18:20:02 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     David Matlack <dmatlack@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        kvm list <kvm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andrew Jones <andrew.jones@...ux.dev>,
        Anup Patel <anup@...infault.org>,
        Atish Patra <atishp@...shpatra.org>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
        Claudio Imbrenda <imbrenda@...ux.ibm.com>,
        Oliver Upton <oliver.upton@...ux.dev>
Subject: Re: [PATCH 1/5] KVM: selftests: Implement memcmp(), memcpy(), and
 memset() for guest use

On Thu, Sep 22, 2022, David Matlack wrote:
> On Thu, Sep 22, 2022 at 10:40 AM Sean Christopherson <seanjc@...gle.com> wrote:
> >
> > On Thu, Sep 22, 2022, David Matlack wrote:
> > > > +LIBKVM_STRING += lib/kvm_string.c
> > >
> > > Can this file be named lib/string.c instead? This file has nothing to do
> > > with KVM per-se.
> >
> > Yes and no.  I deliberately chose kvm_string to avoid confusion with
> > tools/lib/string.c and tools/include/nolibc/string.h.  The implementations
> > themselves aren't KVM specific, but the reason the file _exists_ is 100% unique
> > to KVM as there is no other environment where tools and/or selftests link to
> > glibc but need to override the string ops.
> >
> > I'm not completely opposed to calling it string.c, but my preference is to keep
> > it kvm_string.c so that it's slightly more obvious that KVM selftests are a
> > special snowflake.
> 
> Makes sense, the "kvm" prefix just made me do a double-take. Perhaps
> string_overrides.c? That would make it clear that this file is
> overriding string functions. And the fact that this file is in the KVM
> selftests directory signals that the overrides are specific to the KVM
> selftests.

I like that, string_overrides.c it is.