From 16735297fdce2c7952dbe23288aad0d327fc444b Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Fri, 28 Jul 2023 18:35:15 -0700 Subject: drm/i915/gvt: Use an "unsigned long" to iterate over memslot gfns 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). Reviewed-by: Yan Zhao Tested-by: Yongwei Ma Reviewed-by: Zhi Wang Link: https://lore.kernel.org/r/20230729013535.1070024-10-seanjc@google.com Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/i915') diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 97c6d3c53710..6f52886c4051 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1620,7 +1620,7 @@ 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); -- cgit v1.2.3