[RFC PATCH v1 3/6] KVM: s390: Simplify SIGP Restart

[Eric Farman <farman@linux.ibm.com>]

Now that we check for the STOP IRQ injection at the top of the SIGP
handler (before the userspace/kernelspace check), we don't need to do
it down here for the Restart order.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
---
 arch/s390/kvm/sigp.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 6ca01bbc72cf..0c08927ca7c9 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -240,17 +240,8 @@ static int __sigp_sense_running(struct kvm_vcpu *vcpu,
 static int __prepare_sigp_re_start(struct kvm_vcpu *vcpu,
 				   struct kvm_vcpu *dst_vcpu, u8 order_code)
 {
-	struct kvm_s390_local_interrupt *li = &dst_vcpu->arch.local_int;
 	/* handle (RE)START in user space */
-	int rc = -EOPNOTSUPP;
-
-	/* make sure we don't race with STOP irq injection */
-	spin_lock(&li->lock);
-	if (kvm_s390_is_stop_irq_pending(dst_vcpu))
-		rc = SIGP_CC_BUSY;
-	spin_unlock(&li->lock);
-
-	return rc;
+	return -EOPNOTSUPP;
 }
 
 static int __prepare_sigp_cpu_reset(struct kvm_vcpu *vcpu,
-- 
2.25.1