'struct kvm_device_ops' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
2605 169 16 2790 ae6 virt/kvm/vfio.o
After:
=====
text data bss dec hex filename
2685 89 16 2790 ae6 virt/kvm/vfio.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested only
---
virt/kvm/vfio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c
index 388ae471d258..e72a6a1d5a20 100644
--- a/virt/kvm/vfio.c
+++ b/virt/kvm/vfio.c
@@ -353,7 +353,7 @@ static void kvm_vfio_release(struct kvm_device *dev)
static int kvm_vfio_create(struct kvm_device *dev, u32 type);
-static struct kvm_device_ops kvm_vfio_ops = {
+static const struct kvm_device_ops kvm_vfio_ops = {
.name = "kvm-vfio",
.create = kvm_vfio_create,
.release = kvm_vfio_release,
--
2.46.1
