linux-kernel - [intel-tdx:kvm-upstream 80/152] arch/x86/kvm/vmx/tdx_stubs.c:10:5: error: no previous prototype for 'tdx_vcpu

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Date:   Thu, 16 Dec 2021 23:27:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Isaku Yamahata <isaku.yamahata@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [intel-tdx:kvm-upstream 80/152] arch/x86/kvm/vmx/tdx_stubs.c:10:5:
 error: no previous prototype for 'tdx_vcpu_create'

tree:   https://github.com/intel/tdx.git kvm-upstream
head:   bdfe06c17daab60c196ff80c1d98467a1d3734fa
commit: bd5ba6a8b26525834dfa3bc5ade2dc2726b73468 [80/152] KVM: TDX: allocate/free TDX vcpu structure
config: i386-randconfig-m021-20211216 (https://download.01.org/0day-ci/archive/20211216/202112162335.xw8SJ3xA-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel/tdx/commit/bd5ba6a8b26525834dfa3bc5ade2dc2726b73468
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx kvm-upstream
        git checkout bd5ba6a8b26525834dfa3bc5ade2dc2726b73468
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   arch/x86/kvm/vmx/tdx_stubs.c:4:13: error: no previous prototype for 'tdx_pre_kvm_init' [-Werror=missing-prototypes]
       4 | void __init tdx_pre_kvm_init(unsigned int *vcpu_size,
         |             ^~~~~~~~~~~~~~~~
   arch/x86/kvm/vmx/tdx_stubs.c:6:12: error: no previous prototype for 'tdx_hardware_setup' [-Werror=missing-prototypes]
       6 | int __init tdx_hardware_setup(struct kvm_x86_ops *x86_ops) { return -EOPNOTSUPP; }
         |            ^~~~~~~~~~~~~~~~~~
   arch/x86/kvm/vmx/tdx_stubs.c:7:6: error: no previous prototype for 'tdx_hardware_enable' [-Werror=missing-prototypes]
       7 | void tdx_hardware_enable(void) {}
         |      ^~~~~~~~~~~~~~~~~~~
   arch/x86/kvm/vmx/tdx_stubs.c:8:6: error: no previous prototype for 'tdx_hardware_disable' [-Werror=missing-prototypes]
       8 | void tdx_hardware_disable(void) {}
         |      ^~~~~~~~~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:10:5: error: no previous prototype for 'tdx_vcpu_create' [-Werror=missing-prototypes]
      10 | int tdx_vcpu_create(struct kvm_vcpu *vcpu) { return -EOPNOTSUPP; }
         |     ^~~~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:11:6: error: no previous prototype for 'tdx_vcpu_free' [-Werror=missing-prototypes]
      11 | void tdx_vcpu_free(struct kvm_vcpu *vcpu) {}
         |      ^~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:12:6: error: no previous prototype for 'tdx_vcpu_reset' [-Werror=missing-prototypes]
      12 | void tdx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) {}
         |      ^~~~~~~~~~~~~~
   arch/x86/kvm/vmx/tdx_stubs.c:14:5: error: no previous prototype for 'tdx_dev_ioctl' [-Werror=missing-prototypes]
      14 | int tdx_dev_ioctl(void __user *argp) { return -EOPNOTSUPP; }
         |     ^~~~~~~~~~~~~
   arch/x86/kvm/vmx/tdx_stubs.c:15:5: error: no previous prototype for 'tdx_vm_ioctl' [-Werror=missing-prototypes]
      15 | int tdx_vm_ioctl(struct kvm *kvm, void __user *argp) { return -EOPNOTSUPP; }
         |     ^~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/tdx_vcpu_create +10 arch/x86/kvm/vmx/tdx_stubs.c

     9	
  > 10	int tdx_vcpu_create(struct kvm_vcpu *vcpu) { return -EOPNOTSUPP; }
  > 11	void tdx_vcpu_free(struct kvm_vcpu *vcpu) {}
  > 12	void tdx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) {}
    13	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org