linux-kernel - [ulfh-mmc:next 20/24] drivers/memstick/core/ms_block.c:158:6: error: implicit declaration of function 'bitmap_weight

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Date:   Fri, 18 Feb 2022 03:58:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>
Subject: [ulfh-mmc:next 20/24] drivers/memstick/core/ms_block.c:158:6: error:
 implicit declaration of function 'bitmap_weight_eq'

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git next
head:   4b67100bafbb3f60e6eecf87631e4d400d9b6f17
commit: 5f8d171cd8a93ff425556e7fde5d59fefc677bf7 [20/24] memstick: replace bitmap_weight with bitmap_weight_eq where appropriate
config: hexagon-randconfig-r045-20220217 (https://download.01.org/0day-ci/archive/20220218/202202180327.nT5gZudK-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git/commit/?id=5f8d171cd8a93ff425556e7fde5d59fefc677bf7
        git remote add ulfh-mmc git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git
        git fetch --no-tags ulfh-mmc next
        git checkout 5f8d171cd8a93ff425556e7fde5d59fefc677bf7
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/memstick/core/

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

All errors (new ones prefixed by >>):

>> drivers/memstick/core/ms_block.c:158:6: error: implicit declaration of function 'bitmap_weight_eq' [-Werror,-Wimplicit-function-declaration]
           if (bitmap_weight_eq(msb->used_blocks_bitmap, msb->block_count,
               ^
   drivers/memstick/core/ms_block.c:158:6: note: did you mean 'bitmap_weight'?
   include/linux/bitmap.h:399:28: note: 'bitmap_weight' declared here
   static __always_inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
                              ^
   1 error generated.


vim +/bitmap_weight_eq +158 drivers/memstick/core/ms_block.c

   145	
   146	/* Debug test to validate free block counts */
   147	static int msb_validate_used_block_bitmap(struct msb_data *msb)
   148	{
   149		int total_free_blocks = 0;
   150		int i;
   151	
   152		if (!debug)
   153			return 0;
   154	
   155		for (i = 0; i < msb->zone_count; i++)
   156			total_free_blocks += msb->free_block_count[i];
   157	
 > 158		if (bitmap_weight_eq(msb->used_blocks_bitmap, msb->block_count,
   159					msb->block_count - total_free_blocks))
   160			return 0;
   161	
   162		pr_err("BUG: free block counts don't match the bitmap");
   163		msb->read_only = true;
   164		return -EINVAL;
   165	}
   166	

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