linux-kernel - arch/riscv/kernel/cpufeature.c:34:1: sparse: sparse: symbol '__pcpu_scope_misaligned_access_speed' was not declared. Should it be static?

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Message-ID: <202305021414.EuPdM9kv-lkp@intel.com>
Date:   Tue, 2 May 2023 14:49:14 +0800
From:   kernel test robot <lkp@...el.com>
To:     Evan Green <evan@...osinc.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Palmer Dabbelt <palmer@...osinc.com>,
        Heiko Stuebner <heiko.stuebner@...ll.eu>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Paul Walmsley <paul.walmsley@...ive.com>
Subject: arch/riscv/kernel/cpufeature.c:34:1: sparse: sparse: symbol
 '__pcpu_scope_misaligned_access_speed' was not declared. Should it be
 static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   865fdb08197e657c59e74a35fa32362b12397f58
commit: 62a31d6e38bd0faef7c956b358d651f7bdc4ae0c RISC-V: hwprobe: Support probing of misaligned access performance
date:   13 days ago
config: riscv-randconfig-s052-20230430 (https://download.01.org/0day-ci/archive/20230502/202305021414.EuPdM9kv-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62a31d6e38bd0faef7c956b358d651f7bdc4ae0c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 62a31d6e38bd0faef7c956b358d651f7bdc4ae0c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305021414.EuPdM9kv-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   WARNING: invalid argument to '-march': '_zihintpause'
>> arch/riscv/kernel/cpufeature.c:34:1: sparse: sparse: symbol '__pcpu_scope_misaligned_access_speed' was not declared. Should it be static?

vim +/__pcpu_scope_misaligned_access_speed +34 arch/riscv/kernel/cpufeature.c

    30	
    31	/**
    32	 * riscv_isa_extension_base() - Get base extension word
    33	 *
  > 34	 * @isa_bitmap: ISA bitmap to use
    35	 * Return: base extension word as unsigned long value
    36	 *
    37	 * NOTE: If isa_bitmap is NULL then Host ISA bitmap will be used.
    38	 */
    39	unsigned long riscv_isa_extension_base(const unsigned long *isa_bitmap)
    40	{
    41		if (!isa_bitmap)
    42			return riscv_isa[0];
    43		return isa_bitmap[0];
    44	}
    45	EXPORT_SYMBOL_GPL(riscv_isa_extension_base);
    46	

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