[atishp04:sbi_pmu_v2 12/15] drivers/perf/riscv_pmu_legacy.c:81: warning: expecting prototype for This is just a simple implementation to allow legacy implementations(). Prototype was for riscv_pmu_legacy_init() instead

[atishp04:sbi_pmu_v2 12/15] drivers/perf/riscv_pmu_legacy.c:81: warning: expecting prototype for This is just a simple implementation to allow legacy implementations(). Prototype was for riscv_pmu_legacy_init() instead

[kernel test robot]

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tree:   https://github.com/atishp04/linux sbi_pmu_v2
head:   d84dae6c7e2dafff0eae05e69a28bf470e28ffc5
commit: a2aec275bf13037272c26c0ecb9ef736a64cb342 [12/15] RISC-V: Add a simple platform driver for RISC-V legacy perf
config: riscv-randconfig-r024-20210526 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 99155e913e9bad5f7f8a247f8bb3a3ff3da74af1)
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-riscv64-linux-gnu
        # https://github.com/atishp04/linux/commit/a2aec275bf13037272c26c0ecb9ef736a64cb342
        git remote add atishp04 https://github.com/atishp04/linux
        git fetch --no-tags atishp04 sbi_pmu_v2
        git checkout a2aec275bf13037272c26c0ecb9ef736a64cb342
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 

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

All warnings (new ones prefixed by >>):

   drivers/perf/riscv_pmu_legacy.c:81: warning: Function parameter or member 'pmu' not described in 'riscv_pmu_legacy_init'
>> drivers/perf/riscv_pmu_legacy.c:81: warning: expecting prototype for This is just a simple implementation to allow legacy implementations(). Prototype was for riscv_pmu_legacy_init() instead


vim +81 drivers/perf/riscv_pmu_legacy.c

    72	
    73	/**
    74	 * This is just a simple implementation to allow legacy implementations
    75	 * compatible with new RISC-V PMU driver framework.
    76	 * This driver only allows reading two counters i.e CYCLE & INSTRET.
    77	 * However, it can not start or stop the counter. Thus, it is not very useful
    78	 * will be removed in future.
    79	 */
    80	void riscv_pmu_legacy_init(struct riscv_pmu *pmu)
  > 81	{

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

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