From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Tue, 16 Nov 2010 21:30:06 +0000 (+0100)
Subject: KVM: Clean up kvm_vm_ioctl_assigned_device
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=51de271d441c01e7a0cf39f128827e0b4dc56409;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

KVM: Clean up kvm_vm_ioctl_assigned_device

Any arch not supporting device assigment will also not build
assigned-dev.c. So testing for KVM_CAP_DEVICE_DEASSIGNMENT is pointless.
KVM_CAP_ASSIGN_DEV_IRQ is unconditinally set. Moreover, add a default
case for dispatching the ioctl.

Acked-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---

diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index d3892076f93c..ae72ae604c89 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -674,7 +674,7 @@ long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
 				  unsigned long arg)
 {
 	void __user *argp = (void __user *)arg;
-	int r = -ENOTTY;
+	int r;
 
 	switch (ioctl) {
 	case KVM_ASSIGN_PCI_DEVICE: {
@@ -692,7 +692,6 @@ long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
 		r = -EOPNOTSUPP;
 		break;
 	}
-#ifdef KVM_CAP_ASSIGN_DEV_IRQ
 	case KVM_ASSIGN_DEV_IRQ: {
 		struct kvm_assigned_irq assigned_irq;
 
@@ -715,8 +714,6 @@ long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
 			goto out;
 		break;
 	}
-#endif
-#ifdef KVM_CAP_DEVICE_DEASSIGNMENT
 	case KVM_DEASSIGN_PCI_DEVICE: {
 		struct kvm_assigned_pci_dev assigned_dev;
 
@@ -728,7 +725,6 @@ long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
 			goto out;
 		break;
 	}
-#endif
 #ifdef KVM_CAP_IRQ_ROUTING
 	case KVM_SET_GSI_ROUTING: {
 		struct kvm_irq_routing routing;
@@ -781,6 +777,9 @@ long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
 		break;
 	}
 #endif
+	default:
+		r = -ENOTTY;
+		break;
 	}
 out:
 	return r;