linux-kernel - [atishp04:kvm_perf_rfc 20/24] arch/riscv/include/asm/kvm_vcpu_pmu.h:28:21: error: use of undeclared identifier 'RISCV_MAX

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Date:   Sat, 16 Jul 2022 14:38:55 +0800
From:   kernel test robot <lkp@...el.com>
To:     Atish Patra <atishp@...osinc.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Atish Patra <Atish.Patra@....com>, linux-kernel@...r.kernel.org
Subject: [atishp04:kvm_perf_rfc 20/24]
 arch/riscv/include/asm/kvm_vcpu_pmu.h:28:21: error: use of undeclared
 identifier 'RISCV_MAX_COUNTERS'

tree:   https://github.com/atishp04/linux kvm_perf_rfc
head:   84a3fd7f92957f64c411595a9efcc2eed18db2be
commit: bb00c153861bc5d86bab2b4335f3f0e1ca970925 [20/24] RISC-V: KVM: Add skeleton support for perf
config: riscv-randconfig-r042-20220715 (https://download.01.org/0day-ci/archive/20220716/202207161459.vX2e7oiS-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 07022e6cf9b5b3baa642be53d0b3c3f1c403dbfd)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv-linux-gnu
        # https://github.com/atishp04/linux/commit/bb00c153861bc5d86bab2b4335f3f0e1ca970925
        git remote add atishp04 https://github.com/atishp04/linux
        git fetch --no-tags atishp04 kvm_perf_rfc
        git checkout bb00c153861bc5d86bab2b4335f3f0e1ca970925
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv prepare

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

All errors (new ones prefixed by >>):

   In file included from arch/riscv/kernel/asm-offsets.c:12:
   In file included from arch/riscv/include/asm/kvm_host.h:21:
>> arch/riscv/include/asm/kvm_vcpu_pmu.h:28:21: error: use of undeclared identifier 'RISCV_MAX_COUNTERS'
           struct kvm_pmc pmc[RISCV_MAX_COUNTERS];
                              ^
   arch/riscv/include/asm/kvm_vcpu_pmu.h:34:27: error: use of undeclared identifier 'RISCV_MAX_COUNTERS'
           DECLARE_BITMAP(used_pmc, RISCV_MAX_COUNTERS);
                                    ^
   2 errors generated.
   make[2]: *** [scripts/Makefile.build:117: arch/riscv/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1200: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +/RISCV_MAX_COUNTERS +28 arch/riscv/include/asm/kvm_vcpu_pmu.h

    25	
    26	/* PMU data structure per vcpu */
    27	struct kvm_pmu {
  > 28		struct kvm_pmc pmc[RISCV_MAX_COUNTERS];
    29		/* Number of the virtual firmware counters available */
    30		int num_fw_ctrs;
    31		/* Number of the virtual hardware counters available */
    32		int num_hw_ctrs;
    33		/* Bit map of all the virtual counter used */
    34		DECLARE_BITMAP(used_pmc, RISCV_MAX_COUNTERS);
    35	};
    36	

-- 
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https://01.org/lkp