KVM: PPC: Book 3S: XICS cleanup: remove XICS_RM_REJECT

Commit b022155 ("KVM: PPC: Book3S HV: Move virtual mode ICP functions
 to real-mode") removed the setting of the XICS_RM_REJECT flag. And
since that commit, nothing else sets the flag any more, so we can remove
the flag and the remaining code that handles it, including the counter
that counts how many times it get set.

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

arch/powerpc/kvm/book3s_xics.c

@@ -832,10 +832,6 @@ int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall)
 		icp->n_rm_check_resend++;
 		icp_check_resend(xics, icp->rm_resend_icp);
 	}
-	if (icp->rm_action & XICS_RM_REJECT) {
-		icp->n_rm_reject++;
-		icp_deliver_irq(xics, icp, icp->rm_reject);
-	}
 	if (icp->rm_action & XICS_RM_NOTIFY_EOI) {
 		icp->n_rm_notify_eoi++;
 		kvm_notify_acked_irq(vcpu->kvm, 0, icp->rm_eoied_irq);
@@ -920,7 +916,7 @@ static int xics_debug_show(struct seq_file *m, void *private)
 	int icsid, i;
 	unsigned long flags;
 	unsigned long t_rm_kick_vcpu, t_rm_check_resend;
-	unsigned long t_rm_reject, t_rm_notify_eoi;
+	unsigned long t_rm_notify_eoi;
 	unsigned long t_reject, t_check_resend;
 
 	if (!kvm)
@@ -929,7 +925,6 @@ static int xics_debug_show(struct seq_file *m, void *private)
 	t_rm_kick_vcpu = 0;
 	t_rm_notify_eoi = 0;
 	t_rm_check_resend = 0;
-	t_rm_reject = 0;
 	t_check_resend = 0;
 	t_reject = 0;
 
@@ -952,14 +947,13 @@ static int xics_debug_show(struct seq_file *m, void *private)
 		t_rm_kick_vcpu += icp->n_rm_kick_vcpu;
 		t_rm_notify_eoi += icp->n_rm_notify_eoi;
 		t_rm_check_resend += icp->n_rm_check_resend;
-		t_rm_reject += icp->n_rm_reject;
 		t_check_resend += icp->n_check_resend;
 		t_reject += icp->n_reject;
 	}
 
-	seq_printf(m, "ICP Guest->Host totals: kick_vcpu=%lu check_resend=%lu reject=%lu notify_eoi=%lu\n",
+	seq_printf(m, "ICP Guest->Host totals: kick_vcpu=%lu check_resend=%lu notify_eoi=%lu\n",
 			t_rm_kick_vcpu, t_rm_check_resend,
-			t_rm_reject, t_rm_notify_eoi);
+			t_rm_notify_eoi);
 	seq_printf(m, "ICP Real Mode totals: check_resend=%lu resend=%lu\n",
 			t_check_resend, t_reject);
 	for (icsid = 0; icsid <= KVMPPC_XICS_MAX_ICS_ID; icsid++) {

arch/powerpc/kvm/book3s_xics.h

@@ -73,7 +73,6 @@ struct kvmppc_icp {
 	 */
 #define XICS_RM_KICK_VCPU	0x1
 #define XICS_RM_CHECK_RESEND	0x2
-#define XICS_RM_REJECT		0x4
 #define XICS_RM_NOTIFY_EOI	0x8
 	u32 rm_action;
 	struct kvm_vcpu *rm_kick_target;
@@ -84,7 +83,6 @@ struct kvmppc_icp {
 	/* Counters for each reason we exited real mode */
 	unsigned long n_rm_kick_vcpu;
 	unsigned long n_rm_check_resend;
-	unsigned long n_rm_reject;
 	unsigned long n_rm_notify_eoi;
 	/* Counters for handling ICP processing in real mode */
 	unsigned long n_check_resend;