[android-common:android17-6.18 1/1] arch/arm64/kvm/handle_exit.c:495:48: sparse: sparse: cast to restricted gfp_t

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

tree:   https://android.googlesource.com/kernel/common android17-6.18
head:   b835509d43ba8175031f800f12347f8e8206a471
commit: d0c5a9934e73da6103c39838c3d03b849731962d [1/1] ANDROID: KVM: arm64: Generalize kvm_hyp_req ser/des to smccc
config: arm64-randconfig-r2302-20261104 (https://download.01.org/0day-ci/archive/20261106/202611060732.6HzXdmOW-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.5.0
sparse: v0.6.5-rc1-21-g84ec0658
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261106/202611060732.6HzXdmOW-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/202611060732.6HzXdmOW-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> arch/arm64/kvm/handle_exit.c:495:48: sparse: sparse: cast to restricted gfp_t
--
>> arch/arm64/kvm/iommu.c:178:16: sparse: sparse: cast from restricted gfp_t
   arch/arm64/kvm/iommu.c:187:16: sparse: sparse: cast from restricted gfp_t
   arch/arm64/kvm/iommu.c:203:16: sparse: sparse: cast from restricted gfp_t
   arch/arm64/kvm/iommu.c:224:26: sparse: sparse: cast from restricted gfp_t
   arch/arm64/kvm/iommu.c:252:28: sparse: sparse: cast from restricted gfp_t
   arch/arm64/kvm/iommu.c:310:16: sparse: sparse: cast from restricted gfp_t
   arch/arm64/kvm/iommu.c:358:26: sparse: sparse: cast from restricted gfp_t

vim +495 arch/arm64/kvm/handle_exit.c

   486	
   487	int handle_hyp_req(struct kvm_vcpu *vcpu, struct kvm_hyp_req *req, void *arg)
   488	{
   489		switch (req->type) {
   490		case KVM_HYP_REQ_TYPE_HYP_ALLOC:
   491			return __pkvm_topup_hyp_alloc(req->mem.nr_pages);
   492	
   493		case KVM_HYP_REQ_TYPE_MEM_IOMMU:
   494			return __pkvm_topup_hyp_iommu(1, req->mem.nr_pages << PAGE_SHIFT,
 > 495						      (gfp_t)(uintptr_t)arg);
   496	
   497		case KVM_HYP_REQ_TYPE_MEM:
   498			return handle_hyp_req_mem(vcpu, req);
   499	
   500		case KVM_HYP_REQ_TYPE_MAP:
   501			if (!vcpu)
   502				return -EINVAL;
   503			return pkvm_mem_abort_range(vcpu, req->map.guest_ipa, req->map.size);
   504	
   505		case KVM_HYP_REQ_TYPE_SPLIT:
   506			if (!vcpu)
   507				return -EINVAL;
   508			return __pkvm_pgtable_stage2_split(vcpu, req->split.guest_ipa, req->split.size);
   509	
   510		case KVM_HYP_LAST_REQ:
   511			return 0;
   512		}
   513	
   514		pr_warn("Unknown kvm_hyp_req type: %d\n", req->type);
   515		return -EINVAL;
   516	}
   517	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki