Re: [PATCH 2/4] KVM: arm64: PMU: Set the default PMU for the guest on vCPU reset

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Hi Reiji,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 44c026a73be8038f03dbdeef028b642880cf1511]

url:    https://github.com/intel-lab-lkp/linux/commits/Reiji-Watanabe/KVM-arm64-PMU-Introduce-a-helper-to-set-the-guest-s-PMU/20230527-120717
base:   44c026a73be8038f03dbdeef028b642880cf1511
patch link:    https://lore.kernel.org/r/20230527040236.1875860-3-reijiw%40google.com
patch subject: [PATCH 2/4] KVM: arm64: PMU: Set the default PMU for the guest on vCPU reset
config: arm64-randconfig-r006-20230526 (https://download.01.org/0day-ci/archive/20230528/202305280138.CQFgYLdh-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/6339e7261a0e27669f5e17362150b7f3f5681f4a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Reiji-Watanabe/KVM-arm64-PMU-Introduce-a-helper-to-set-the-guest-s-PMU/20230527-120717
        git checkout 6339e7261a0e27669f5e17362150b7f3f5681f4a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross W=1 O=build_dir ARCH=arm64 prepare

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202305280138.CQFgYLdh-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from arch/arm64/include/asm/kvm_host.h:37,
                    from include/linux/kvm_host.h:45,
                    from arch/arm64/kernel/asm-offsets.c:16:
>> include/kvm/arm_pmu.h:172:62: warning: 'struct arm_pmu' declared inside parameter list will not be visible outside of this definition or declaration
     172 | static inline int kvm_arm_set_vm_pmu(struct kvm *kvm, struct arm_pmu *arm_pmu)
         |                                                              ^~~~~~~
--
   In file included from arch/arm64/include/asm/kvm_host.h:37,
                    from include/linux/kvm_host.h:45,
                    from arch/arm64/kernel/asm-offsets.c:16:
>> include/kvm/arm_pmu.h:172:62: warning: 'struct arm_pmu' declared inside parameter list will not be visible outside of this definition or declaration
     172 | static inline int kvm_arm_set_vm_pmu(struct kvm *kvm, struct arm_pmu *arm_pmu)
         |                                                              ^~~~~~~


vim +172 include/kvm/arm_pmu.h

   171	
 > 172	static inline int kvm_arm_set_vm_pmu(struct kvm *kvm, struct arm_pmu *arm_pmu)
   173	{
   174		return 0;
   175	}
   176	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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