linux-kernel - [norov:fns 24/24] lib/test_bitmap.c:226:37: error: 'EXP1_IN

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Date:   Sun, 26 Jun 2022 10:04:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [norov:fns 24/24] lib/test_bitmap.c:226:37: error: 'EXP1_IN_BITS'
 undeclared

tree:   https://github.com/norov/linux fns
head:   c6f11d769095eb58ae2f05e3df1d8e71b7ccc5d7
commit: c6f11d769095eb58ae2f05e3df1d8e71b7ccc5d7 [24/24] fixes
config: ia64-randconfig-r011-20220626
compiler: ia64-linux-gcc (GCC) 11.3.0
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://github.com/norov/linux/commit/c6f11d769095eb58ae2f05e3df1d8e71b7ccc5d7
        git remote add norov https://github.com/norov/linux
        git fetch --no-tags norov fns
        git checkout c6f11d769095eb58ae2f05e3df1d8e71b7ccc5d7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash

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 include/linux/bitmap.h:9,
                    from lib/test_bitmap.c:8:
   lib/test_bitmap.c: In function 'test_find_nth_bit':
>> lib/test_bitmap.c:226:37: error: 'EXP1_IN_BITS' undeclared (first use in this function)
     226 |         for_each_set_bit(bit, exp1, EXP1_IN_BITS) {
         |                                     ^~~~~~~~~~~~
   include/linux/find.h:345:45: note: in definition of macro 'for_each_set_bit'
     345 |         for ((bit) = find_next_bit((addr), (size), 0);          \
         |                                             ^~~~
   lib/test_bitmap.c:226:37: note: each undeclared identifier is reported only once for each function it appears in
     226 |         for_each_set_bit(bit, exp1, EXP1_IN_BITS) {
         |                                     ^~~~~~~~~~~~
   include/linux/find.h:345:45: note: in definition of macro 'for_each_set_bit'
     345 |         for ((bit) = find_next_bit((addr), (size), 0);          \
         |                                             ^~~~
   lib/test_bitmap.c: In function 'test_find_next_bit_wrap':
   lib/test_bitmap.c:234:53: error: 'EXP1_IN_BITS' undeclared (first use in this function)
     234 |         const unsigned long w = bitmap_weight(exp1, EXP1_IN_BITS);
         |                                                     ^~~~~~~~~~~~
   At top level:
   lib/test_bitmap.c:232:20: warning: 'test_find_next_bit_wrap' defined but not used [-Wunused-function]
     232 | static void __init test_find_next_bit_wrap(void)
         |                    ^~~~~~~~~~~~~~~~~~~~~~~


vim +/EXP1_IN_BITS +226 lib/test_bitmap.c

   221	
   222	static void __init test_find_nth_bit(void)
   223	{
   224		unsigned long b, bit, cnt = 0;
   225	
 > 226		for_each_set_bit(bit, exp1, EXP1_IN_BITS) {
   227			b = find_nth_bit(exp1, EXP1_IN_BITS, ++cnt);
   228			expect_eq_uint(b, bit);
   229		}
   230	}
   231	

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