[sean-jc:x86/mmu_follow_pfn 7/28] arch/x86/kvm/mmu/paging_tmpl.h:555:50: error: 'struct page **' and 'struct page *' are not pointers to compatible types

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/sean-jc/linux x86/mmu_follow_pfn
head:   57ff012a34bc3bfac1ebb0724078e8fe47fdb60a
commit: 85294ecb09b3f377a64f374c2841967c6be774eb [7/28] KVM: x86/mmu: Use
config: i386-buildonly-randconfig-002-20240622 (https://download.01.org/0day-ci/archive/20240622/202406221621.juDuxt5k-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240622/202406221621.juDuxt5k-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406221621.juDuxt5k-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/x86/kvm/mmu/mmu.c:4822:
>> arch/x86/kvm/mmu/paging_tmpl.h:555:50: error: 'struct page **' and 'struct page *' are not pointers to compatible types
     555 |         mmu_set_spte(vcpu, slot, spte, pte_access, gfn, page_to_pfn(page), NULL);
         |                                                         ^~~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:64:21: note: expanded from macro 'page_to_pfn'
      64 | #define page_to_pfn __page_to_pfn
         |                     ^
   include/asm-generic/memory_model.h:19:53: note: expanded from macro '__page_to_pfn'
      19 | #define __page_to_pfn(page)     ((unsigned long)((page) - mem_map) + \
         |                                                  ~~~~~~ ^ ~~~~~~~
   In file included from arch/x86/kvm/mmu/mmu.c:4822:
>> arch/x86/kvm/mmu/paging_tmpl.h:556:25: error: incompatible pointer types passing 'struct page *[1]' to parameter of type 'struct page *' [-Werror,-Wincompatible-pointer-types]
     556 |         kvm_release_page_clean(page);
         |                                ^~~~
   include/linux/kvm_host.h:1209:42: note: passing argument to parameter 'page' here
    1209 | void kvm_release_page_clean(struct page *page);
         |                                          ^
   In file included from arch/x86/kvm/mmu/mmu.c:4826:
>> arch/x86/kvm/mmu/paging_tmpl.h:555:50: error: 'struct page **' and 'struct page *' are not pointers to compatible types
     555 |         mmu_set_spte(vcpu, slot, spte, pte_access, gfn, page_to_pfn(page), NULL);
         |                                                         ^~~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:64:21: note: expanded from macro 'page_to_pfn'
      64 | #define page_to_pfn __page_to_pfn
         |                     ^
   include/asm-generic/memory_model.h:19:53: note: expanded from macro '__page_to_pfn'
      19 | #define __page_to_pfn(page)     ((unsigned long)((page) - mem_map) + \
         |                                                  ~~~~~~ ^ ~~~~~~~
   In file included from arch/x86/kvm/mmu/mmu.c:4826:
>> arch/x86/kvm/mmu/paging_tmpl.h:556:25: error: incompatible pointer types passing 'struct page *[1]' to parameter of type 'struct page *' [-Werror,-Wincompatible-pointer-types]
     556 |         kvm_release_page_clean(page);
         |                                ^~~~
   include/linux/kvm_host.h:1209:42: note: passing argument to parameter 'page' here
    1209 | void kvm_release_page_clean(struct page *page);
         |                                          ^
   In file included from arch/x86/kvm/mmu/mmu.c:4830:
>> arch/x86/kvm/mmu/paging_tmpl.h:555:50: error: 'struct page **' and 'struct page *' are not pointers to compatible types
     555 |         mmu_set_spte(vcpu, slot, spte, pte_access, gfn, page_to_pfn(page), NULL);
         |                                                         ^~~~~~~~~~~~~~~~~
   include/asm-generic/memory_model.h:64:21: note: expanded from macro 'page_to_pfn'
      64 | #define page_to_pfn __page_to_pfn
         |                     ^
   include/asm-generic/memory_model.h:19:53: note: expanded from macro '__page_to_pfn'
      19 | #define __page_to_pfn(page)     ((unsigned long)((page) - mem_map) + \
         |                                                  ~~~~~~ ^ ~~~~~~~
   In file included from arch/x86/kvm/mmu/mmu.c:4830:
>> arch/x86/kvm/mmu/paging_tmpl.h:556:25: error: incompatible pointer types passing 'struct page *[1]' to parameter of type 'struct page *' [-Werror,-Wincompatible-pointer-types]
     556 |         kvm_release_page_clean(page);
         |                                ^~~~
   include/linux/kvm_host.h:1209:42: note: passing argument to parameter 'page' here
    1209 | void kvm_release_page_clean(struct page *page);
         |                                          ^
   6 errors generated.


vim +555 arch/x86/kvm/mmu/paging_tmpl.h

   531	
   532	static bool
   533	FNAME(prefetch_gpte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
   534			     u64 *spte, pt_element_t gpte)
   535	{
   536		struct kvm_memory_slot *slot;
   537		struct page *page[1];
   538		unsigned pte_access;
   539		gfn_t gfn;
   540	
   541		if (FNAME(prefetch_invalid_gpte)(vcpu, sp, spte, gpte))
   542			return false;
   543	
   544		gfn = gpte_to_gfn(gpte);
   545		pte_access = sp->role.access & FNAME(gpte_access)(gpte);
   546		FNAME(protect_clean_gpte)(vcpu->arch.mmu, &pte_access, gpte);
   547	
   548		slot = gfn_to_memslot_dirty_bitmap(vcpu, gfn, pte_access & ACC_WRITE_MASK);
   549		if (!slot)
   550			return false;
   551	
   552		if (gfn_to_page_many_atomic(slot, gfn, page, 1) != 1)
   553			return false;
   554	
 > 555		mmu_set_spte(vcpu, slot, spte, pte_access, gfn, page_to_pfn(page), NULL);
 > 556		kvm_release_page_clean(page);
   557		return true;
   558	}
   559	

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