linux-kernel - [intel-tdx:kvm-upstream-workaround 86/141] arch/x86/kvm/vmx/tdx_stubs.c:26:5: warning: no previous prototype for 'tdx_deliver_posted

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Date:   Wed, 9 Feb 2022 15:38:20 +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-workaround 86/141]
 arch/x86/kvm/vmx/tdx_stubs.c:26:5: warning: no previous prototype for
 'tdx_deliver_posted_interrupt'

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   58f28b2fcc73d05d6a5a9f70a8fdacefa99acb85
commit: c4a72d4d1cfe13ebb2ee11e183fc4ebc9bc831d0 [86/141] KVM: TDX: Implement interrupt injection
config: x86_64-randconfig-a002 (https://download.01.org/0day-ci/archive/20220209/202202091551.vEzKN4Pb-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/c4a72d4d1cfe13ebb2ee11e183fc4ebc9bc831d0
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx kvm-upstream-workaround
        git checkout c4a72d4d1cfe13ebb2ee11e183fc4ebc9bc831d0
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/

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

All warnings (new ones prefixed by >>):

   arch/x86/kvm/vmx/tdx_stubs.c:9:5: warning: no previous prototype for 'tdx_module_setup' [-Wmissing-prototypes]
       9 | int tdx_module_setup(void) { return -EOPNOTSUPP; };
         |     ^~~~~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:26:5: warning: no previous prototype for 'tdx_deliver_posted_interrupt' [-Wmissing-prototypes]
      26 | int tdx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector) { return 0; }
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/tdx_deliver_posted_interrupt +26 arch/x86/kvm/vmx/tdx_stubs.c

    24	
    25	void tdx_apicv_post_state_restore(struct kvm_vcpu *vcpu) {}
  > 26	int tdx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector) { return 0; }
    27	

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