From: kernel test robot <lkp@intel.com>
To: cros-kernel-buildreports@googlegroups.com
Cc: oe-kbuild-all@lists.linux.dev
Subject: [android-common:android16-6.12 1/1] arch/arm64/kvm/hyp/nvhe/pkvm.c:1766:14: warning: assignment to 'const uuid_t *' from 'int' makes pointer from integer without a cast
Date: Fri, 10 Apr 2026 21:28:33 +0800 [thread overview]
Message-ID: <202604102138.ohkHitbO-lkp@intel.com> (raw)
Hi Bartłomiej,
FYI, the error/warning still remains.
tree: https://android.googlesource.com/kernel/common android16-6.12
head: 91e49117396d06326d151f97f382c6d93a267bea
commit: c0fe83ef01767a3af8396356e2f82aaab869d2f8 [1/1] ANDROID: KVM: arm64: Add TRNG handling for protected guests
config: arm64-randconfig-r061-20260409 (https://download.01.org/0day-ci/archive/20260410/202604102138.ohkHitbO-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260410/202604102138.ohkHitbO-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/202604102138.ohkHitbO-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from arch/arm64/kvm/hyp/nvhe/pkvm.c:19:
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h:49:42: warning: 'struct pkvm_sglist_page' declared inside parameter list will not be visible outside of this definition or declaration
49 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages);
| ^~~~~~~~~~~~~~~~
In file included from arch/arm64/kvm/hyp/nvhe/pkvm.c:21:
arch/arm64/kvm/hyp/include/nvhe/modules.h:38:6: warning: no previous prototype for 'module_handle_host_perm_fault' [-Wmissing-prototypes]
38 | bool module_handle_host_perm_fault(struct user_pt_regs *regs, u64 esr, u64 addr) { return false; }
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:39:6: warning: no previous prototype for 'module_handle_host_smc' [-Wmissing-prototypes]
39 | bool module_handle_host_smc(struct user_pt_regs *regs) { return false; }
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:40:6: warning: no previous prototype for 'module_handle_guest_smc' [-Wmissing-prototypes]
40 | bool module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/pkvm.c: In function 'module_handle_guest_trng_rng':
arch/arm64/kvm/hyp/nvhe/pkvm.c:1747:15: error: implicit declaration of function 'module_get_guest_trng_rng'; did you mean 'module_handle_guest_trng_rng'? [-Werror=implicit-function-declaration]
1747 | ret = module_get_guest_trng_rng(entropy, nbits);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
| module_handle_guest_trng_rng
arch/arm64/kvm/hyp/nvhe/pkvm.c: In function 'module_handle_guest_trng':
arch/arm64/kvm/hyp/nvhe/pkvm.c:1766:16: error: implicit declaration of function 'module_get_guest_trng_uuid'; did you mean 'module_handle_guest_trng_rng'? [-Werror=implicit-function-declaration]
1766 | uuid = module_get_guest_trng_uuid();
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
| module_handle_guest_trng_rng
>> arch/arm64/kvm/hyp/nvhe/pkvm.c:1766:14: warning: assignment to 'const uuid_t *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1766 | uuid = module_get_guest_trng_uuid();
| ^
cc1: some warnings being treated as errors
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for USB_PHY
Depends on [n]: USB_SUPPORT [=n]
Selected by [y]:
- GKI_HIDDEN_USB_CONFIGS [=y]
WARNING: unmet direct dependencies detected for DIMLIB
Depends on [n]: NET [=n]
Selected by [y]:
- GKI_HIDDEN_VIRTUAL_CONFIGS [=y]
WARNING: unmet direct dependencies detected for PAGE_POOL
Depends on [n]: NET [=n]
Selected by [y]:
- GKI_HIDDEN_NET_CONFIGS [=y]
WARNING: unmet direct dependencies detected for WEXT_PRIV
Depends on [n]: NET [=n] && WIRELESS [=n]
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for NET_PTP_CLASSIFY
Depends on [n]: NET [=n]
Selected by [y]:
- GKI_HIDDEN_NET_CONFIGS [=y]
WARNING: unmet direct dependencies detected for PHYLINK
Depends on [n]: NETDEVICES [=n]
Selected by [y]:
- GKI_HIDDEN_ETHERNET_CONFIGS [=y]
WARNING: unmet direct dependencies detected for VIDEO_V4L2_SUBDEV_API
Depends on [n]: MEDIA_SUPPORT [=y] && VIDEO_DEV [=n] && MEDIA_CONTROLLER [=y]
Selected by [y]:
- GKI_HIDDEN_MEDIA_CONFIGS [=y]
WARNING: unmet direct dependencies detected for WIRELESS_EXT
Depends on [n]: NET [=n] && WIRELESS [=n]
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for WEXT_CORE
Depends on [n]: NET [=n] && WIRELESS [=n] && (CFG80211_WEXT [=n] || WIRELESS_EXT [=y])
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for CAN_RX_OFFLOAD
Depends on [n]: NETDEVICES [=n] && CAN_DEV [=n] && CAN_NETLINK [=n]
Selected by [y]:
- GKI_HIDDEN_MCP251XFD_CONFIGS [=y]
WARNING: unmet direct dependencies detected for WEXT_SPY
Depends on [n]: NET [=n] && WIRELESS [=n]
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for NET_DEVLINK
Depends on [n]: NET [=n]
Selected by [y]:
- GKI_HIDDEN_NET_CONFIGS [=y]
WARNING: unmet direct dependencies detected for WEXT_PROC
Depends on [n]: NET [=n] && WIRELESS [=n] && PROC_FS [=y] && WEXT_CORE [=y]
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
vim +1766 arch/arm64/kvm/hyp/nvhe/pkvm.c
1732
1733 static bool module_handle_guest_trng_rng(struct kvm_vcpu *vcpu)
1734 {
1735 u64 ret;
1736 u64 entropy[DIV_ROUND_UP(ARM_SMCCC_TRNG_SMC64_BITS, 64)];
1737 u64 nbits;
1738
1739 nbits = smccc_get_arg1(vcpu);
1740 if (nbits == 0 || nbits > ARM_SMCCC_TRNG_SMC64_BITS) {
1741 ret = ARM_SMCCC_TRNG_INVALID_PARAMETERS;
1742 goto err;
1743 }
1744
1745 memset(entropy, 0, sizeof(entropy));
1746
> 1747 ret = module_get_guest_trng_rng(entropy, nbits);
1748 if (ret == SMCCC_RET_SUCCESS) {
1749 smccc_set_retval(vcpu, SMCCC_RET_SUCCESS, entropy[2],
1750 entropy[1], entropy[0]);
1751 return true;
1752 }
1753
1754 err:
1755 smccc_set_retval(vcpu, ret, 0, 0, 0);
1756 return true;
1757 }
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
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-04-10 13:28 UTC|newest]
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