KVM: MIPS: Fold comparecount_func() into comparecount_wakeup()

Fold kvm_mips_comparecount_func() into kvm_mips_comparecount_wakeup() to
eliminate the nondescript function name as well as its unnecessary cast
of a vcpu to "unsigned long" and back to a vcpu.  Presumably func() was
used as a callback at some point during pre-upstream development, as
wakeup() is the only user of func() and has been the only user since
both with introduced by commit 669e846 ("KVM/MIPS32: MIPS arch
specific APIs for KVM").

Cc: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/mips/kvm/mips.c

@@ -280,24 +280,19 @@ static inline void dump_handler(const char *symbol, void *start, void *end)
 	pr_debug("\tEND(%s)\n", symbol);
 }
 
-static void kvm_mips_comparecount_func(unsigned long data)
+/* low level hrtimer wake routine */
+static enum hrtimer_restart kvm_mips_comparecount_wakeup(struct hrtimer *timer)
 {
-	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
+	struct kvm_vcpu *vcpu;
+
+	vcpu = container_of(timer, struct kvm_vcpu, arch.comparecount_timer);
 
 	kvm_mips_callbacks->queue_timer_int(vcpu);
 
 	vcpu->arch.wait = 0;
 	if (swq_has_sleeper(&vcpu->wq))
 		swake_up_one(&vcpu->wq);
-}
 
-/* low level hrtimer wake routine */
-static enum hrtimer_restart kvm_mips_comparecount_wakeup(struct hrtimer *timer)
-{
-	struct kvm_vcpu *vcpu;
-
-	vcpu = container_of(timer, struct kvm_vcpu, arch.comparecount_timer);
-	kvm_mips_comparecount_func((unsigned long) vcpu);
 	return kvm_mips_count_timeout(vcpu);
 }