[android-common:android16-6.12-lts 1/1] arch/arm64/kvm/hyp/nvhe/pkvm.c:1785:40: sparse: sparse: cast to restricted __le32

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

tree:   https://android.googlesource.com/kernel/common android16-6.12-lts
head:   57041e4a7e52342473871000827584f966d8cbd3
commit: c0fe83ef01767a3af8396356e2f82aaab869d2f8 [1/1] ANDROID: KVM: arm64: Add TRNG handling for protected guests
config: arm64-randconfig-r123-20260910 (https://download.01.org/0day-ci/archive/20260919/202609190936.j7CUdpGH-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project d3db069999553568848400c84cbf815c03f5470f)
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260919/202609190936.j7CUdpGH-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/202609190936.j7CUdpGH-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> arch/arm64/kvm/hyp/nvhe/pkvm.c:1785:40: sparse: sparse: cast to restricted __le32
   arch/arm64/kvm/hyp/nvhe/pkvm.c:1786:34: sparse: sparse: cast to restricted __le32
   arch/arm64/kvm/hyp/nvhe/pkvm.c:1787:34: sparse: sparse: cast to restricted __le32
   arch/arm64/kvm/hyp/nvhe/pkvm.c:1788:34: sparse: sparse: cast to restricted __le32

vim +1785 arch/arm64/kvm/hyp/nvhe/pkvm.c

  1758	
  1759	static bool module_handle_guest_trng(struct kvm_vcpu *vcpu)
  1760	{
  1761		u32 fn;
  1762		u64 ret = SMCCC_RET_NOT_SUPPORTED;
  1763		const uuid_t *uuid;
  1764	
  1765		fn = smccc_get_function(vcpu);
  1766		uuid = module_get_guest_trng_uuid();
  1767		if (!uuid)
  1768			return false;
  1769	
  1770		switch (fn) {
  1771		case ARM_SMCCC_TRNG_VERSION:
  1772			ret = ARM_SMCCC_TRNG_VER_1_0;
  1773			break;
  1774		case ARM_SMCCC_TRNG_FEATURES:
  1775			switch (smccc_get_arg1(vcpu)) {
  1776			case ARM_SMCCC_TRNG_VERSION:
  1777			case ARM_SMCCC_TRNG_FEATURES:
  1778			case ARM_SMCCC_TRNG_GET_UUID:
  1779			case ARM_SMCCC_TRNG_RND64:
  1780				ret = SMCCC_RET_SUCCESS;
  1781				break;
  1782			}
  1783			break;
  1784		case ARM_SMCCC_TRNG_GET_UUID:
> 1785			smccc_set_retval(vcpu, le32_to_cpu(((u32 *)uuid->b)[0]),
  1786					 le32_to_cpu(((u32 *)uuid->b)[1]),
  1787					 le32_to_cpu(((u32 *)uuid->b)[2]),
  1788					 le32_to_cpu(((u32 *)uuid->b)[3]));
  1789			return true;
  1790		case ARM_SMCCC_TRNG_RND64:
  1791			return module_handle_guest_trng_rng(vcpu);
  1792		default:
  1793			return false;
  1794		}
  1795	
  1796		smccc_set_retval(vcpu, ret, 0, 0, 0);
  1797		return true;
  1798	}
  1799	

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