linux-kernel - Re: [PATCH] KVM: x86: Unexport x86_fpu

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Date:   Mon, 27 Jan 2020 09:58:09 +0100
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH] KVM: x86: Unexport x86_fpu_cache and make it static

Sean Christopherson <sean.j.christopherson@...el.com> writes:

> Make x86_fpu_cache static now that FPU allocation and destruction is
> handled entirely by common x86 code.
>

git grep on kvm/next agrees :-)

> Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.com>

Reviewed-by: Vitaly Kuznetsov <vkuznets@...hat.com>

> ---
>
> Pretty sure I meant to include this in the vCPU creation cleanup, but
> completely forgot about it.
>
>  arch/x86/include/asm/kvm_host.h | 1 -
>  arch/x86/kvm/x86.c              | 3 +--
>  2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 77d206a93658..f300a250ab51 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1266,7 +1266,6 @@ struct kvm_arch_async_pf {
>  };
>  
>  extern struct kvm_x86_ops *kvm_x86_ops;
> -extern struct kmem_cache *x86_fpu_cache;
>  
>  #define __KVM_HAVE_ARCH_VM_ALLOC
>  static inline struct kvm *kvm_arch_alloc_vm(void)
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 7e3f1d937224..78b7e1f08845 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -227,8 +227,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
>  
>  u64 __read_mostly host_xcr0;
>  
> -struct kmem_cache *x86_fpu_cache;
> -EXPORT_SYMBOL_GPL(x86_fpu_cache);
> +static struct kmem_cache *x86_fpu_cache;
>  
>  static int emulator_fix_hypercall(struct x86_emulate_ctxt *ctxt);

-- 
Vitaly