[PATCH 07/27] drm/i915/gvt: Use an "unsigned long" to iterate over memslot gfns

Sean Christopherson
2022-12-23T00:58:37Z

Use an "unsigned long" instead of an "int" when iterating over the gfns
in a memslot. The number of pages in the memslot is tracked as an
"unsigned long", e.g. KVMGT could theoretically break if a KVM memslot
larger than 16TiB were deleted (2^32 * 4KiB).

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 6f358b4fe406..5d0e029d60d7 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1635,7 +1635,7 @@ static void kvmgt_page_track_flush_slot(struct kvm *kvm,
struct kvm_memory_slot *slot,
struct kvm_page_track_notifier_node *node)
{
- int i;
+ unsigned long i;
gfn_t gfn;
struct intel_vgpu *info =
container_of(node, struct intel_vgpu, track_node);
--
2.39.0.314.g84b9a713c41-goog