Re: [PATCH v3] KVM: x86: only allocate gfn_track when necessary

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

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Hi David,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v5.15-rc3]
[also build test ERROR on next-20210922]
[cannot apply to kvm/queue v5.15-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/David-Stevens/KVM-x86-only-allocate-gfn_track-when-necessary/20211006-120107
base:    5816b3e6577eaa676ceb00a848f0fd65fe2adc29
config: i386-randconfig-r026-20211004 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/cbf42e7d74e9fca9a7f2987a0df2f015a9050c1b
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review David-Stevens/KVM-x86-only-allocate-gfn_track-when-necessary/20211006-120107
        git checkout cbf42e7d74e9fca9a7f2987a0df2f015a9050c1b
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from arch/x86/kvm/x86.c:22:
   arch/x86/kvm/mmu.h: In function 'kvm_memslots_have_rmaps':
>> arch/x86/kvm/mmu.h:246:19: error: 'struct kvm_arch' has no member named 'tdp_mmu_enabled'
     246 |  return !kvm->arch.tdp_mmu_enabled || kvm_shadow_root_alloced(kvm);
         |                   ^
   In file included from arch/x86/kvm/x86.c:22:
   arch/x86/kvm/mmu.h:247:1: error: control reaches end of non-void function [-Werror=return-type]
     247 | }
         | ^
   cc1: some warnings being treated as errors
--
   In file included from arch/x86/kvm/emulate.c:30:
   arch/x86/kvm/mmu.h: In function 'kvm_memslots_have_rmaps':
>> arch/x86/kvm/mmu.h:246:19: error: 'struct kvm_arch' has no member named 'tdp_mmu_enabled'
     246 |  return !kvm->arch.tdp_mmu_enabled || kvm_shadow_root_alloced(kvm);
         |                   ^


vim +246 arch/x86/kvm/mmu.h

   243	
   244	static inline bool kvm_memslots_have_rmaps(struct kvm *kvm)
   245	{
 > 246		return !kvm->arch.tdp_mmu_enabled || kvm_shadow_root_alloced(kvm);
   247	}
   248	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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