Return a u64, not an int, from mmu_spte_clear_track_bits(). The return
value is the old SPTE value, which is very much a 64-bit value. The sole
caller that consumes the return value, drop_spte(), already uses a u64.
The only reason that truncating the SPTE value is not problematic is
because drop_spte() only queries the shadow-present bit, which is in the
lower 32 bits.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/mmu/mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 52664c3caaab..b2379ede2ed6 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -529,7 +529,7 @@ static bool mmu_spte_update(u64 *sptep, u64 new_spte)
* state bits, it is used to clear the last level sptep.
* Returns the old PTE.
*/
-static int mmu_spte_clear_track_bits(struct kvm *kvm, u64 *sptep)
+static u64 mmu_spte_clear_track_bits(struct kvm *kvm, u64 *sptep)
{
kvm_pfn_t pfn;
u64 old_spte = *sptep;
--
2.37.0.170.g444d1eabd0-goog
