linux-kernel - RE: [PATCH] KVM: vmx: fix a build warning in hv_enable_direct

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Message-ID: <87y2yc7bws.fsf@vitty.brq.redhat.com>
Date:   Wed, 25 Sep 2019 15:17:39 +0200
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     Tianyu Lan <Tianyu.Lan@...rosoft.com>,
        "kvm\@vger.kernel.org" <kvm@...r.kernel.org>
Cc:     "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Jim Mattson <jmattson@...gle.com>
Subject: RE: [PATCH] KVM: vmx: fix a build warning in hv_enable_direct_tlbflush() on i386

Tianyu Lan <Tianyu.Lan@...rosoft.com> writes:

> There is another warning in the report.
>
> arch/x86/kvm/vmx/vmx.c: In function 'hv_enable_direct_tlbflush':
> arch/x86/kvm/vmx/vmx.c:507:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
>   evmcs->hv_vm_id = (u64)vcpu->kvm;
>                     ^
> The following change can fix it.
> -       evmcs->hv_vm_id = (u64)vcpu->kvm;
> +       evmcs->hv_vm_id = (unsigned long)vcpu->kvm;
>         evmcs->hv_enlightenments_control.nested_flush_hypercall = 1;
>

Missed that one (and I have to admit I haven't compiled my patch on i386
:-). Will send v2 with this included, thanks!

-- 
Vitaly