From: Sean Christopherson <sean.j.christopherson@intel.com>
To: linmiaohe <linmiaohe@huawei.com>
Cc: pbonzini@redhat.com, rkrcmar@redhat.com, vkuznets@redhat.com,
wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org,
tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org
Subject: Re: [PATCH] KVM: X86: Add 'else' to unify fastop and execute call path
Date: Tue, 21 Jan 2020 20:42:56 -0800 [thread overview]
Message-ID: <20200122044256.GA18513@linux.intel.com> (raw)
In-Reply-To: <1579663304-14524-1-git-send-email-linmiaohe@huawei.com>
On Wed, Jan 22, 2020 at 11:21:44AM +0800, linmiaohe wrote:
> From: Miaohe Lin <linmiaohe@huawei.com>
>
> It also helps eliminate some duplicated code.
>
> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> ---
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
> arch/x86/kvm/emulate.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
> index c7a0da45f60a..0accce94f660 100644
> --- a/arch/x86/kvm/emulate.c
> +++ b/arch/x86/kvm/emulate.c
> @@ -5683,11 +5683,9 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
> if (ctxt->d & Fastop) {
> void (*fop)(struct fastop *) = (void *)ctxt->execute;
The brackets can also be removed with a bit more cleanup, e.g. using a
typedef to handling casting ctxt->execute. I'll send a patch that can be
applied on top and/or squashed with this one.
> rc = fastop(ctxt, fop);
> - if (rc != X86EMUL_CONTINUE)
> - goto done;
> - goto writeback;
> + } else {
> + rc = ctxt->execute(ctxt);
> }
> - rc = ctxt->execute(ctxt);
> if (rc != X86EMUL_CONTINUE)
> goto done;
> goto writeback;
> --
> 2.19.1
>
next prev parent reply other threads:[~2020-01-22 4:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-22 3:21 [PATCH] KVM: X86: Add 'else' to unify fastop and execute call path linmiaohe
2020-01-22 4:42 ` Sean Christopherson [this message]
2020-01-22 14:24 ` Paolo Bonzini
2020-01-22 4:43 ` [PATCH 02/01] KVM: x86: Use a typedef for fastop functions Sean Christopherson
2020-01-22 14:25 ` Paolo Bonzini
2020-01-22 6:41 [PATCH] KVM: X86: Add 'else' to unify fastop and execute call path linmiaohe
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