commit 8ca6f063b73d3754213d009efb3df486c8fe52d2
author Ben Gardon <bgardon@google.com> Thu Apr 01 16:37:24 2021 -0700
committer Paolo Bonzini <pbonzini@redhat.com> Mon Apr 19 09:05:23 2021 -0400
tree 83967b5dda461b21e2e25d73f983428f344b8e86
parent e1eed5847b09fe41d4db4b86f9d840aba869c905

KVM: x86/mmu: Re-add const qualifier in kvm_tdp_mmu_zap_collapsible_sptes

kvm_tdp_mmu_zap_collapsible_sptes unnecessarily removes the const
qualifier from its memlsot argument, leading to a compiler warning. Add
the const annotation and pass it to subsequent functions.

Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20210401233736.638171-2-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/mmu/mmu.c

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index d0f5318..6395ab9 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -715,8 +715,7 @@ static void kvm_mmu_page_set_gfn(struct kvm_mmu_page *sp, int index, gfn_t gfn)
  * handling slots that are not large page aligned.
  */
 static struct kvm_lpage_info *lpage_info_slot(gfn_t gfn,
-					      struct kvm_memory_slot *slot,
-					      int level)
+		const struct kvm_memory_slot *slot, int level)
 {
 	unsigned long idx;
 
@@ -2702,7 +2701,7 @@ static void direct_pte_prefetch(struct kvm_vcpu *vcpu, u64 *sptep)
 }
 
 static int host_pfn_mapping_level(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn,
-				  struct kvm_memory_slot *slot)
+				  const struct kvm_memory_slot *slot)
 {
 	unsigned long hva;
 	pte_t *pte;
@@ -2728,8 +2727,9 @@ static int host_pfn_mapping_level(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn,
 	return level;
 }
 
-int kvm_mmu_max_mapping_level(struct kvm *kvm, struct kvm_memory_slot *slot,
-			      gfn_t gfn, kvm_pfn_t pfn, int max_level)
+int kvm_mmu_max_mapping_level(struct kvm *kvm,
+			      const struct kvm_memory_slot *slot, gfn_t gfn,
+			      kvm_pfn_t pfn, int max_level)
 {
 	struct kvm_lpage_info *linfo;