Commit bbee049d authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Alex Williamson
Browse files

kvm/vfio: Constify struct kvm_device_ops 



'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: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/e7361a1bb7defbb0f7056b884e83f8d75ac9fe21.1727517084.git.christophe.jaillet@wanadoo.fr


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 81983758

virt/kvm/vfio.c

+1 −1
Original line number Diff line number Diff line
@@ -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,