Hi Paolo,

FYI, the error/warning still remains.

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 97f98c391a1fd153ae010a2faf73f9e03270da6e commit: f98a0954a8ca618f8d94da7f6d52c1a93e6717bb [1395/1395] KVM: nVMX: do not use dangling shadow VMCS after guest reset config: x86_64-buildonly-randconfig-003-20250108 (https://download.01.org/0day-ci/archive/20250111/202501112054.wCj5DExm-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250111/202501112054.wCj5DExm-lkp@i...)

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/202501112054.wCj5DExm-lkp@intel.com/

All warnings (new ones prefixed by >>):

In file included from arch/x86/kvm/vmx.c:55: In file included from arch/x86/include/asm/mmu_context.h:12: In file included from arch/x86/include/asm/pgalloc.h:7: include/linux/pagemap.h:401:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict] 401 | filler_t *filler = (filler_t *)mapping->a_ops->readpage; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/vmx.c:4508:6: warning: variable 'vmx_msr_low' set but not used [-Wunused-but-set-variable] 4508 | u32 vmx_msr_low, vmx_msr_high; | ^ arch/x86/kvm/vmx.c:70:32: warning: unused variable 'vmx_cpu_id' [-Wunused-const-variable] 70 | static const struct x86_cpu_id vmx_cpu_id[] = { | ^~~~~~~~~~ 3 warnings generated.

...

arch/x86/kvm/vmx.o: warning: objtool: copy_shadow_to_vmcs12()+0x13e: unreachable instruction