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From:   Vitaly Kuznetsov <vkuznets@redhat.com>
To:     kvm@vger.kernel.org
Cc:     x86@kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
        =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@redhat.com>,
        Roman Kagan <rkagan@virtuozzo.com>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>,
        Mohammed Gamal <mmorsy@redhat.com>,
        Cathy Avery <cavery@redhat.com>, linux-kernel@vger.kernel.org
Subject: [PATCH 2/5] KVM: x86: hyperv: use defines when parsing hypercall parameters
Date:   Mon,  2 Apr 2018 18:10:56 +0200
Message-Id: <20180402161059.8488-3-vkuznets@redhat.com>
In-Reply-To: <20180402161059.8488-1-vkuznets@redhat.com>
References: <20180402161059.8488-1-vkuznets@redhat.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Avoid open-coding offsets for hypercall input parameters, we already
have defines for them.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 arch/x86/kvm/hyperv.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 98618e397342..3cb3bb68db7e 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1339,9 +1339,9 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 #endif
 
 	code = param & 0xffff;
-	fast = (param >> 16) & 0x1;
-	rep_cnt = (param >> 32) & 0xfff;
-	rep_idx = (param >> 48) & 0xfff;
+	fast = !!(param & HV_HYPERCALL_FAST_BIT);
+	rep_cnt = (param >> HV_HYPERCALL_REP_COMP_OFFSET) & 0xfff;
+	rep_idx = (param >> HV_HYPERCALL_REP_START_OFFSET) & 0xfff;
 
 	trace_kvm_hv_hypercall(code, fast, rep_cnt, rep_idx, ingpa, outgpa);
 
-- 
2.14.3