* [android-common:android17-6.18-2026-06 3/3] arch/arm64/kvm/hyp/include/nvhe/modules.h:47:16: error: 'return' with a value, in function returning void
@ 2026-07-16 0:48 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-07-16 0:48 UTC (permalink / raw)
To: cros-kernel-buildreports; +Cc: oe-kbuild-all
Hi Quentin,
FYI, the error/warning still remains.
tree: https://android.googlesource.com/kernel/common android17-6.18-2026-06
head: dddb2f587987bc109f7f6f1295336c6dc8fc8aa1
commit: 489e4bb847d0800b869c810143d2be0f635d02f3 [3/3] ANDROID: KVM: arm64: Allow memcache topup from guest SMC handler
config: arm64-randconfig-002-20260715 (https://download.01.org/0day-ci/archive/20260716/202607160818.kaG1bSbp-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260716/202607160818.kaG1bSbp-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/202607160818.kaG1bSbp-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from arch/arm64/kvm/hyp/nvhe/mem_protect.c:21:
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h:48:42: warning: 'struct pkvm_sglist_page' declared inside parameter list will not be visible outside of this definition or declaration
48 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages);
| ^~~~~~~~~~~~~~~~
In file included from arch/arm64/kvm/hyp/nvhe/mem_protect.c:23:
arch/arm64/kvm/hyp/include/nvhe/modules.h:41:6: warning: no previous prototype for 'module_handle_host_perm_fault' [-Wmissing-prototypes]
41 | 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:42:6: warning: no previous prototype for 'module_handle_host_smc' [-Wmissing-prototypes]
42 | bool module_handle_host_smc(struct user_pt_regs *regs) { return false; }
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: error: return type is an incomplete type
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: warning: no previous prototype for 'module_handle_guest_smc' [-Wmissing-prototypes]
arch/arm64/kvm/hyp/include/nvhe/modules.h: In function 'module_handle_guest_smc':
>> arch/arm64/kvm/hyp/include/nvhe/modules.h:47:16: error: 'return' with a value, in function returning void [-Wreturn-mismatch]
47 | return false;
| ^~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: note: declared here
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c: At top level:
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1492:42: warning: 'struct pkvm_sglist_page' declared inside parameter list will not be visible outside of this definition or declaration
1492 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages)
| ^~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1492:5: error: conflicting types for '__pkvm_host_donate_sglist_hyp'; have 'int(struct pkvm_sglist_page *, size_t)' {aka 'int(struct pkvm_sglist_page *, long unsigned int)'}
1492 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h:48:5: note: previous declaration of '__pkvm_host_donate_sglist_hyp' with type 'int(struct pkvm_sglist_page *, size_t)' {aka 'int(struct pkvm_sglist_page *, long unsigned int)'}
48 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/arm64/include/asm/bug.h:26,
from include/linux/bug.h:5,
from include/linux/thread_info.h:13,
from arch/arm64/include/asm/processor.h:35,
from include/linux/sched.h:13,
from include/linux/resume_user_mode.h:6,
from include/linux/entry-virt.h:6,
from include/linux/kvm_host.h:5,
from arch/arm64/kvm/hyp/nvhe/mem_protect.c:7:
arch/arm64/kvm/hyp/nvhe/mem_protect.c: In function '__pkvm_host_donate_sglist_hyp':
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1500:76: error: invalid application of 'sizeof' to incomplete type 'struct pkvm_sglist_page'
1500 | WARN_ON(__hyp_check_page_state_range((u64)sglist, nr_pages * sizeof(*sglist),
| ^
include/asm-generic/bug.h:123:32: note: in definition of macro 'WARN_ON'
123 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1508:27: error: invalid use of undefined type 'struct pkvm_sglist_page'
1508 | if (sglist[p].order > max_order) {
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1508:30: error: invalid use of undefined type 'struct pkvm_sglist_page'
1508 | if (sglist[p].order > max_order) {
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1512:43: error: invalid use of undefined type 'struct pkvm_sglist_page'
1512 | size = PAGE_SIZE << sglist[p].order;
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1512:46: error: invalid use of undefined type 'struct pkvm_sglist_page'
1512 | size = PAGE_SIZE << sglist[p].order;
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1514:47: error: invalid use of undefined type 'struct pkvm_sglist_page'
1514 | if (!pfn_range_is_valid(sglist[p].pfn, size >> PAGE_SHIFT)) {
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1514:50: error: invalid use of undefined type 'struct pkvm_sglist_page'
1514 | if (!pfn_range_is_valid(sglist[p].pfn, size >> PAGE_SHIFT)) {
| ^
In file included from arch/arm64/kvm/hyp/include/nvhe/gfp.h:7,
from arch/arm64/kvm/hyp/nvhe/mem_protect.c:18:
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1518:46: error: invalid use of undefined type 'struct pkvm_sglist_page'
1518 | phys = hyp_pfn_to_phys(sglist[p].pfn);
| ^
arch/arm64/kvm/hyp/include/nvhe/memory.h:80:49: note: in definition of macro 'hyp_pfn_to_phys'
80 | #define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT))
| ^~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1518:49: error: invalid use of undefined type 'struct pkvm_sglist_page'
1518 | phys = hyp_pfn_to_phys(sglist[p].pfn);
| ^
arch/arm64/kvm/hyp/include/nvhe/memory.h:80:49: note: in definition of macro 'hyp_pfn_to_phys'
80 | #define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT))
| ^~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1530:50: error: invalid use of undefined type 'struct pkvm_sglist_page'
1530 | size_t size = PAGE_SIZE << sglist[p].order;
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1530:53: error: invalid use of undefined type 'struct pkvm_sglist_page'
1530 | size_t size = PAGE_SIZE << sglist[p].order;
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1531:50: error: invalid use of undefined type 'struct pkvm_sglist_page'
1531 | u64 phys = hyp_pfn_to_phys(sglist[p].pfn);
| ^
arch/arm64/kvm/hyp/include/nvhe/memory.h:80:49: note: in definition of macro 'hyp_pfn_to_phys'
80 | #define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT))
| ^~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1531:53: error: invalid use of undefined type 'struct pkvm_sglist_page'
1531 | u64 phys = hyp_pfn_to_phys(sglist[p].pfn);
| ^
arch/arm64/kvm/hyp/include/nvhe/memory.h:80:49: note: in definition of macro 'hyp_pfn_to_phys'
80 | #define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT))
| ^~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1543:62: error: invalid use of undefined type 'struct pkvm_sglist_page'
1543 | phys = hyp_pfn_to_phys(sglist[p].pfn);
| ^
arch/arm64/kvm/hyp/include/nvhe/memory.h:80:49: note: in definition of macro 'hyp_pfn_to_phys'
80 | #define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT))
| ^~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1543:65: error: invalid use of undefined type 'struct pkvm_sglist_page'
1543 | phys = hyp_pfn_to_phys(sglist[p].pfn);
| ^
arch/arm64/kvm/hyp/include/nvhe/memory.h:80:49: note: in definition of macro 'hyp_pfn_to_phys'
80 | #define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT))
| ^~~
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1544:59: error: invalid use of undefined type 'struct pkvm_sglist_page'
1544 | size = PAGE_SIZE << sglist[p].order;
| ^
arch/arm64/kvm/hyp/nvhe/mem_protect.c:1544:62: error: invalid use of undefined type 'struct pkvm_sglist_page'
1544 | size = PAGE_SIZE << sglist[p].order;
| ^
--
In file included from arch/arm64/kvm/hyp/nvhe/pkvm.c:21:
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h:48:42: warning: 'struct pkvm_sglist_page' declared inside parameter list will not be visible outside of this definition or declaration
48 | 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:23:
arch/arm64/kvm/hyp/include/nvhe/modules.h:41:6: warning: no previous prototype for 'module_handle_host_perm_fault' [-Wmissing-prototypes]
41 | 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:42:6: warning: no previous prototype for 'module_handle_host_smc' [-Wmissing-prototypes]
42 | bool module_handle_host_smc(struct user_pt_regs *regs) { return false; }
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: error: return type is an incomplete type
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: warning: no previous prototype for 'module_handle_guest_smc' [-Wmissing-prototypes]
arch/arm64/kvm/hyp/include/nvhe/modules.h: In function 'module_handle_guest_smc':
>> arch/arm64/kvm/hyp/include/nvhe/modules.h:47:16: error: 'return' with a value, in function returning void [-Wreturn-mismatch]
47 | return false;
| ^~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: note: declared here
44 | 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:1869:15: error: implicit declaration of function 'module_get_guest_trng_rng'; did you mean 'module_handle_guest_trng_rng'? [-Wimplicit-function-declaration]
1869 | 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:1888:16: error: implicit declaration of function 'module_get_guest_trng_uuid'; did you mean 'module_handle_guest_trng_rng'? [-Wimplicit-function-declaration]
1888 | uuid = module_get_guest_trng_uuid();
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
| module_handle_guest_trng_rng
arch/arm64/kvm/hyp/nvhe/pkvm.c:1888:14: error: assignment to 'const uuid_t *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1888 | uuid = module_get_guest_trng_uuid();
| ^
arch/arm64/kvm/hyp/nvhe/pkvm.c: In function 'kvm_handle_pvm_smc64':
arch/arm64/kvm/hyp/nvhe/pkvm.c:1931:35: error: storage size of 'handler_ret' isn't known
1931 | enum pkvm_smc_handler_ret handler_ret;
| ^~~~~~~~~~~
>> arch/arm64/kvm/hyp/nvhe/pkvm.c:1949:21: error: invalid use of void expression
1949 | handler_ret = module_handle_guest_smc(®s, &res, vm->kvm.arch.pkvm.handle);
| ^
arch/arm64/kvm/hyp/nvhe/pkvm.c:1951:14: error: 'GUEST_SMC_HANDLED' undeclared (first use in this function)
1951 | case GUEST_SMC_HANDLED:
| ^~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/pkvm.c:1951:14: note: each undeclared identifier is reported only once for each function it appears in
arch/arm64/kvm/hyp/nvhe/pkvm.c:1954:14: error: 'GUEST_SMC_NOT_HANDLED' undeclared (first use in this function)
1954 | case GUEST_SMC_NOT_HANDLED:
| ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/pkvm.c:1957:14: error: 'GUEST_SMC_NEED_TOPUP' undeclared (first use in this function)
1957 | case GUEST_SMC_NEED_TOPUP:
| ^~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/pkvm.c:1931:35: warning: unused variable 'handler_ret' [-Wunused-variable]
1931 | enum pkvm_smc_handler_ret handler_ret;
| ^~~~~~~~~~~
--
In file included from arch/arm64/kvm/hyp/nvhe/mm.c:18:
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h:48:42: warning: 'struct pkvm_sglist_page' declared inside parameter list will not be visible outside of this definition or declaration
48 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages);
| ^~~~~~~~~~~~~~~~
In file included from arch/arm64/kvm/hyp/nvhe/mm.c:20:
arch/arm64/kvm/hyp/include/nvhe/modules.h:41:6: warning: no previous prototype for 'module_handle_host_perm_fault' [-Wmissing-prototypes]
41 | 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:42:6: warning: no previous prototype for 'module_handle_host_smc' [-Wmissing-prototypes]
42 | bool module_handle_host_smc(struct user_pt_regs *regs) { return false; }
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: error: return type is an incomplete type
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: warning: no previous prototype for 'module_handle_guest_smc' [-Wmissing-prototypes]
arch/arm64/kvm/hyp/include/nvhe/modules.h: In function 'module_handle_guest_smc':
>> arch/arm64/kvm/hyp/include/nvhe/modules.h:47:16: error: 'return' with a value, in function returning void [-Wreturn-mismatch]
47 | return false;
| ^~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: note: declared here
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
--
In file included from arch/arm64/kvm/hyp/nvhe/psci-relay.c:15:
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h:48:42: warning: 'struct pkvm_sglist_page' declared inside parameter list will not be visible outside of this definition or declaration
48 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages);
| ^~~~~~~~~~~~~~~~
In file included from arch/arm64/kvm/hyp/nvhe/psci-relay.c:17:
arch/arm64/kvm/hyp/include/nvhe/modules.h:41:6: warning: no previous prototype for 'module_handle_host_perm_fault' [-Wmissing-prototypes]
41 | 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:42:6: warning: no previous prototype for 'module_handle_host_smc' [-Wmissing-prototypes]
42 | bool module_handle_host_smc(struct user_pt_regs *regs) { return false; }
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: error: return type is an incomplete type
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: warning: no previous prototype for 'module_handle_guest_smc' [-Wmissing-prototypes]
arch/arm64/kvm/hyp/include/nvhe/modules.h: In function 'module_handle_guest_smc':
>> arch/arm64/kvm/hyp/include/nvhe/modules.h:47:16: error: 'return' with a value, in function returning void [-Wreturn-mismatch]
47 | return false;
| ^~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: note: declared here
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/psci-relay.c: At top level:
arch/arm64/kvm/hyp/nvhe/psci-relay.c:30:58: error: parameter 1 ('notif') has incomplete type
30 | static void pkvm_psci_notify(enum pkvm_psci_notification notif, struct kvm_cpu_context *host_ctxt)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
arch/arm64/kvm/hyp/nvhe/psci-relay.c:30:13: error: function declaration isn't a prototype [-Werror=strict-prototypes]
30 | static void pkvm_psci_notify(enum pkvm_psci_notification notif, struct kvm_cpu_context *host_ctxt)
| ^~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/psci-relay.c: In function 'pkvm_psci_notify':
arch/arm64/kvm/hyp/nvhe/psci-relay.c:33:36: error: type of formal parameter 1 is incomplete
33 | pkvm_psci_notifier(notif, &host_ctxt->regs);
| ^~~~~
arch/arm64/kvm/hyp/nvhe/psci-relay.c: In function 'psci_cpu_suspend':
arch/arm64/kvm/hyp/nvhe/psci-relay.c:192:26: error: 'PKVM_PSCI_CPU_SUSPEND' undeclared (first use in this function); did you mean 'KVM_PSCI_FN_CPU_SUSPEND'?
192 | pkvm_psci_notify(PKVM_PSCI_CPU_SUSPEND, host_ctxt);
| ^~~~~~~~~~~~~~~~~~~~~
| KVM_PSCI_FN_CPU_SUSPEND
arch/arm64/kvm/hyp/nvhe/psci-relay.c:192:26: note: each undeclared identifier is reported only once for each function it appears in
arch/arm64/kvm/hyp/nvhe/psci-relay.c: In function 'psci_system_suspend':
arch/arm64/kvm/hyp/nvhe/psci-relay.c:223:26: error: 'PKVM_PSCI_SYSTEM_SUSPEND' undeclared (first use in this function); did you mean 'KVM_PSCI_FN_CPU_SUSPEND'?
223 | pkvm_psci_notify(PKVM_PSCI_SYSTEM_SUSPEND, host_ctxt);
| ^~~~~~~~~~~~~~~~~~~~~~~~
| KVM_PSCI_FN_CPU_SUSPEND
arch/arm64/kvm/hyp/nvhe/psci-relay.c: In function '__kvm_host_psci_cpu_entry':
arch/arm64/kvm/hyp/nvhe/psci-relay.c:254:26: error: 'PKVM_PSCI_CPU_ENTRY' undeclared (first use in this function)
254 | pkvm_psci_notify(PKVM_PSCI_CPU_ENTRY, host_ctxt);
| ^~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from arch/arm64/kvm/hyp/nvhe/hyp-main.c:24:
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h:48:42: warning: 'struct pkvm_sglist_page' declared inside parameter list will not be visible outside of this definition or declaration
48 | int __pkvm_host_donate_sglist_hyp(struct pkvm_sglist_page *sglist, size_t nr_pages);
| ^~~~~~~~~~~~~~~~
In file included from arch/arm64/kvm/hyp/nvhe/hyp-main.c:25:
arch/arm64/kvm/hyp/include/nvhe/modules.h:41:6: warning: no previous prototype for 'module_handle_host_perm_fault' [-Wmissing-prototypes]
41 | 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:42:6: warning: no previous prototype for 'module_handle_host_smc' [-Wmissing-prototypes]
42 | bool module_handle_host_smc(struct user_pt_regs *regs) { return false; }
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: error: return type is an incomplete type
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: warning: no previous prototype for 'module_handle_guest_smc' [-Wmissing-prototypes]
arch/arm64/kvm/hyp/include/nvhe/modules.h: In function 'module_handle_guest_smc':
>> arch/arm64/kvm/hyp/include/nvhe/modules.h:47:16: error: 'return' with a value, in function returning void [-Wreturn-mismatch]
47 | return false;
| ^~~~~
arch/arm64/kvm/hyp/include/nvhe/modules.h:44:1: note: declared here
44 | module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c: At top level:
arch/arm64/kvm/hyp/nvhe/hyp-main.c:463:43: warning: initialized field overwritten [-Woverride-init]
463 | [ESR_ELx_EC_WFx] = handle_pvm_entry_wfx,
| ^~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:463:43: note: (near initialization for 'entry_hyp_pvm_handlers[1]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:464:43: warning: initialized field overwritten [-Woverride-init]
464 | [ESR_ELx_EC_HVC64] = handle_pvm_entry_hvc64,
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:464:43: note: (near initialization for 'entry_hyp_pvm_handlers[22]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:465:43: warning: initialized field overwritten [-Woverride-init]
465 | [ESR_ELx_EC_SYS64] = handle_pvm_entry_sys64,
| ^~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:465:43: note: (near initialization for 'entry_hyp_pvm_handlers[24]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:466:43: warning: initialized field overwritten [-Woverride-init]
466 | [ESR_ELx_EC_IABT_LOW] = handle_pvm_entry_iabt,
| ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:466:43: note: (near initialization for 'entry_hyp_pvm_handlers[32]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:467:43: warning: initialized field overwritten [-Woverride-init]
467 | [ESR_ELx_EC_DABT_LOW] = handle_pvm_entry_dabt,
| ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:467:43: note: (near initialization for 'entry_hyp_pvm_handlers[36]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:472:43: warning: initialized field overwritten [-Woverride-init]
472 | [ESR_ELx_EC_WFx] = handle_pvm_exit_wfx,
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:472:43: note: (near initialization for 'exit_hyp_pvm_handlers[1]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:473:43: warning: initialized field overwritten [-Woverride-init]
473 | [ESR_ELx_EC_HVC64] = handle_pvm_exit_hvc64,
| ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:473:43: note: (near initialization for 'exit_hyp_pvm_handlers[22]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:474:43: warning: initialized field overwritten [-Woverride-init]
474 | [ESR_ELx_EC_SYS64] = handle_pvm_exit_sys64,
| ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:474:43: note: (near initialization for 'exit_hyp_pvm_handlers[24]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:475:43: warning: initialized field overwritten [-Woverride-init]
475 | [ESR_ELx_EC_IABT_LOW] = handle_pvm_exit_iabt,
| ^~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:475:43: note: (near initialization for 'exit_hyp_pvm_handlers[32]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:476:43: warning: initialized field overwritten [-Woverride-init]
476 | [ESR_ELx_EC_DABT_LOW] = handle_pvm_exit_dabt,
| ^~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:476:43: note: (near initialization for 'exit_hyp_pvm_handlers[36]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:485:43: warning: initialized field overwritten [-Woverride-init]
485 | [ESR_ELx_EC_IABT_LOW] = handle_vm_exit_abt,
| ^~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:485:43: note: (near initialization for 'exit_hyp_vm_handlers[32]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c:486:43: warning: initialized field overwritten [-Woverride-init]
486 | [ESR_ELx_EC_DABT_LOW] = handle_vm_exit_abt,
| ^~~~~~~~~~~~~~~~~~
arch/arm64/kvm/hyp/nvhe/hyp-main.c:486:43: note: (near initialization for 'exit_hyp_vm_handlers[36]')
arch/arm64/kvm/hyp/nvhe/hyp-main.c: In function 'handle_host_hcall':
arch/arm64/kvm/hyp/nvhe/hyp-main.c:2023:39: error: passing argument 1 of 'handle_host_dynamic_hcall' from incompatible pointer type [-Wincompatible-pointer-types]
2023 | if (handle_host_dynamic_hcall(&host_ctxt->regs, id) == HCALL_HANDLED)
| ^~~~~~~~~~~~~~~~
| |
| struct user_pt_regs *
arch/arm64/kvm/hyp/include/nvhe/modules.h:36:51: note: expected 'struct kvm_cpu_context *' but argument is of type 'struct user_pt_regs *'
36 | handle_host_dynamic_hcall(struct kvm_cpu_context *host_ctxt, int id)
| ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~
vim +/return +47 arch/arm64/kvm/hyp/include/nvhe/modules.h
905de63a80084ee Vincent Donnefort 2023-11-09 18
94d30106c7722f4 Quentin Perret 2022-10-06 19 #ifdef CONFIG_MODULES
07e87abe4be64a1 Vincent Donnefort 2024-09-24 20 int __pkvm_init_module(void *host_mod);
15d5bab7e86b00a Vincent Donnefort 2022-09-27 21 int __pkvm_register_hcall(unsigned long hfn_hyp_va);
35b4aef425c3e60 Vincent Donnefort 2024-03-08 22 int handle_host_dynamic_hcall(struct user_pt_regs *regs, int id);
2968360a9bc2c1f Vincent Donnefort 2022-11-18 23 void __pkvm_close_module_registration(void);
c141eb26c339351 Vincent Donnefort 2024-12-06 24 bool module_handle_host_perm_fault(struct user_pt_regs *regs, u64 esr, u64 addr);
30eefcc7af64a3a Vincent Donnefort 2025-01-14 25 bool module_handle_host_smc(struct user_pt_regs *regs);
489e4bb847d0800 Quentin Perret 2025-10-23 26 enum pkvm_smc_handler_ret
489e4bb847d0800 Quentin Perret 2025-10-23 27 module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
2864d7152511a57 Nikita Ioffe 2025-05-12 28 pkvm_handle_t handle);
eff36ac2fe9748d Bartłomiej Grzesik 2025-06-24 29 const uuid_t *module_get_guest_trng_uuid(void);
eff36ac2fe9748d Bartłomiej Grzesik 2025-06-24 30 u64 module_get_guest_trng_rng(u64 *entropy, int nbits);
94d30106c7722f4 Quentin Perret 2022-10-06 31 #else
94d30106c7722f4 Quentin Perret 2022-10-06 32 static inline int __pkvm_init_module(void *module_init) { return -EOPNOTSUPP; }
15d5bab7e86b00a Vincent Donnefort 2022-09-27 33 static inline int
15d5bab7e86b00a Vincent Donnefort 2022-09-27 34 __pkvm_register_hcall(unsigned long hfn_hyp_va) { return -EOPNOTSUPP; }
35b4aef425c3e60 Vincent Donnefort 2024-03-08 35 static inline int
35b4aef425c3e60 Vincent Donnefort 2024-03-08 36 handle_host_dynamic_hcall(struct kvm_cpu_context *host_ctxt, int id)
15d5bab7e86b00a Vincent Donnefort 2022-09-27 37 {
15d5bab7e86b00a Vincent Donnefort 2022-09-27 38 return HCALL_UNHANDLED;
15d5bab7e86b00a Vincent Donnefort 2022-09-27 39 }
2968360a9bc2c1f Vincent Donnefort 2022-11-18 40 static inline void __pkvm_close_module_registration(void) { }
c141eb26c339351 Vincent Donnefort 2024-12-06 41 bool module_handle_host_perm_fault(struct user_pt_regs *regs, u64 esr, u64 addr) { return false; }
30eefcc7af64a3a Vincent Donnefort 2025-01-14 @42 bool module_handle_host_smc(struct user_pt_regs *regs) { return false; }
489e4bb847d0800 Quentin Perret 2025-10-23 43 enum pkvm_smc_handler_ret
489e4bb847d0800 Quentin Perret 2025-10-23 44 module_handle_guest_smc(struct arm_smccc_1_2_regs *regs, struct arm_smccc_1_2_regs *res,
2864d7152511a57 Nikita Ioffe 2025-05-12 45 pkvm_handle_t handle)
2864d7152511a57 Nikita Ioffe 2025-05-12 46 {
2864d7152511a57 Nikita Ioffe 2025-05-12 @47 return false;
:::::: The code at line 47 was first introduced by commit
:::::: 2864d7152511a57f4ffcf2636d4cc7c42d544c45 ANDROID: KVM: arm64: Add smc64 trap handling for protected guests
:::::: TO: Nikita Ioffe <ioffe@google.com>
:::::: CC: Fuad Tabba <tabba@google.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-07-16 0:48 [android-common:android17-6.18-2026-06 3/3] arch/arm64/kvm/hyp/include/nvhe/modules.h:47:16: error: 'return' with a value, in function returning void kernel test robot
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