MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX()

kvm_mips_trans_replace() passes a pointer to KVM_GUEST_KSEGX(). This
breaks on 64-bit builds due to the cast of that 64-bit pointer to a
different sized 32-bit int. Cast the pointer argument to an unsigned
long to work around the warning.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/mips/kvm/dyntrans.c

@@ -33,7 +33,7 @@ static int kvm_mips_trans_replace(struct kvm_vcpu *vcpu, u32 *opc,
 	unsigned long paddr, flags;
 	void *vaddr;
 
-	if (KVM_GUEST_KSEGX(opc) == KVM_GUEST_KSEG0) {
+	if (KVM_GUEST_KSEGX((unsigned long)opc) == KVM_GUEST_KSEG0) {
 		paddr = kvm_mips_translate_guest_kseg0_to_hpa(vcpu,
 							    (unsigned long)opc);
 		vaddr = kmap_atomic(pfn_to_page(PHYS_PFN(paddr)));