path: root/virt/kvm/kvm_main.c
diff options
authorSteven Price <steven.price@arm.com>2019-10-21 16:28:19 +0100
committerMarc Zyngier <maz@kernel.org>2019-10-21 19:20:28 +0100
commit8538cb22bbce5a988671b68baf0b0f9e86ca1e87 (patch)
tree30956f316b4186a4d0b1c18912aaa7aafc1570ec /virt/kvm/kvm_main.c
parentKVM: arm64: Support stolen time reporting via shared structure (diff)
KVM: Allow kvm_device_ops to be const
Currently a kvm_device_ops structure cannot be const without triggering compiler warnings. However the structure doesn't need to be written to and, by marking it const, it can be read-only in memory. Add some more const keywords to allow this. Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'virt/kvm/kvm_main.c')
1 files changed, 3 insertions, 3 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index fd68fbe0a75d..66a977472a1c 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3046,14 +3046,14 @@ struct kvm_device *kvm_device_from_filp(struct file *filp)
return filp->private_data;
-static struct kvm_device_ops *kvm_device_ops_table[KVM_DEV_TYPE_MAX] = {
+static const struct kvm_device_ops *kvm_device_ops_table[KVM_DEV_TYPE_MAX] = {
[KVM_DEV_TYPE_FSL_MPIC_20] = &kvm_mpic_ops,
[KVM_DEV_TYPE_FSL_MPIC_42] = &kvm_mpic_ops,
-int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type)
+int kvm_register_device_ops(const struct kvm_device_ops *ops, u32 type)
if (type >= ARRAY_SIZE(kvm_device_ops_table))
return -ENOSPC;
@@ -3074,7 +3074,7 @@ void kvm_unregister_device_ops(u32 type)
static int kvm_ioctl_create_device(struct kvm *kvm,
struct kvm_create_device *cd)
- struct kvm_device_ops *ops = NULL;
+ const struct kvm_device_ops *ops = NULL;
struct kvm_device *dev;
bool test = cd->flags & KVM_CREATE_DEVICE_TEST;
int type;