* [norov:find_bit_static 8/8] include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap'
@ 2021-01-25 12:43 kernel test robot
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From: kernel test robot @ 2021-01-25 12:43 UTC (permalink / raw)
To: kbuild-all
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tree: https://github.com/norov/linux find_bit_static
head: 9647d9f4cd1b259c620e06337010396d5a324f79
commit: 9647d9f4cd1b259c620e06337010396d5a324f79 [8/8] fix next
config: mips-randconfig-r031-20210125 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 12d0753aca22896fda2cf76781b0ee0524d55065)
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 mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
# https://github.com/norov/linux/commit/9647d9f4cd1b259c620e06337010396d5a324f79
git remote add norov https://github.com/norov/linux
git fetch --no-tags norov find_bit_static
git checkout 9647d9f4cd1b259c620e06337010396d5a324f79
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from kernel/bounds.c:10:
In file included from include/linux/page-flags.h:10:
In file included from include/linux/bug.h:5:
In file included from arch/mips/include/asm/bug.h:42:
In file included from include/asm-generic/bug.h:20:
In file included from include/linux/kernel.h:11:
In file included from include/linux/bitops.h:50:
In file included from arch/mips/include/asm/bitops.h:458:
include/asm-generic/bitops/le.h:45:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr | ~BITMAP_FIRST_WORD_MASK(offset);
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap' [-Werror,-Wimplicit-function-declaration]
idx = ffz(swap(val));
^
include/asm-generic/bitops/le.h:69:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr & BITMAP_FIRST_WORD_MASK(offset)
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 errors generated.
--
In file included from kernel//locking/test-ww_mutex.c:6:
In file included from include/linux/kernel.h:11:
In file included from include/linux/bitops.h:50:
In file included from arch/mips/include/asm/bitops.h:458:
include/asm-generic/bitops/le.h:45:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr | ~BITMAP_FIRST_WORD_MASK(offset);
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap' [-Werror,-Wimplicit-function-declaration]
idx = ffz(swap(val));
^
include/asm-generic/bitops/le.h:69:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr & BITMAP_FIRST_WORD_MASK(offset)
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from kernel//locking/test-ww_mutex.c:11:
In file included from include/linux/module.h:16:
In file included from include/linux/kmod.h:9:
In file included from include/linux/umh.h:4:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:19:
include/linux/page-flags-layout.h:6:10: fatal error: 'generated/bounds.h' file not found
#include <generated/bounds.h>
^~~~~~~~~~~~~~~~~~~~
4 errors generated.
--
In file included from kernel/bounds.c:10:
In file included from include/linux/page-flags.h:10:
In file included from include/linux/bug.h:5:
In file included from arch/mips/include/asm/bug.h:42:
In file included from include/asm-generic/bug.h:20:
In file included from include/linux/kernel.h:11:
In file included from include/linux/bitops.h:50:
In file included from arch/mips/include/asm/bitops.h:458:
include/asm-generic/bitops/le.h:45:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr | ~BITMAP_FIRST_WORD_MASK(offset);
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap' [-Werror,-Wimplicit-function-declaration]
idx = ffz(swap(val));
^
include/asm-generic/bitops/le.h:69:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr & BITMAP_FIRST_WORD_MASK(offset)
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 errors generated.
make[2]: *** [scripts/Makefile.build:117: kernel/bounds.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1220: prepare0] Error 2
make[1]: Target 'modules_prepare' not remade because of errors.
make: *** [Makefile:185: __sub-make] Error 2
make: Target 'modules_prepare' not remade because of errors.
--
In file included from kernel/bounds.c:10:
In file included from include/linux/page-flags.h:10:
In file included from include/linux/bug.h:5:
In file included from arch/mips/include/asm/bug.h:42:
In file included from include/asm-generic/bug.h:20:
In file included from include/linux/kernel.h:11:
In file included from include/linux/bitops.h:50:
In file included from arch/mips/include/asm/bitops.h:458:
include/asm-generic/bitops/le.h:45:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr | ~BITMAP_FIRST_WORD_MASK(offset);
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap' [-Werror,-Wimplicit-function-declaration]
idx = ffz(swap(val));
^
include/asm-generic/bitops/le.h:69:15: error: invalid operands to binary expression ('const void' and 'unsigned long')
val = *addr & BITMAP_FIRST_WORD_MASK(offset)
~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3 errors generated.
make[2]: *** [scripts/Makefile.build:117: kernel/bounds.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1220: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:185: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +/swap +49 include/asm-generic/bitops/le.h
33
34 #ifndef find_next_zero_bit_le
35 static __always_inline
36 unsigned long find_next_zero_bit_le(const void *addr, unsigned
37 long size, unsigned long offset)
38 {
39 if (small_const_nbits(size)) {
40 unsigned long val, idx;
41
42 if (unlikely(offset >= size))
43 return size;
44
45 val = *addr | ~BITMAP_FIRST_WORD_MASK(offset);
46 if (val == ~0UL)
47 return size;
48
> 49 idx = ffz(swap(val));
50
51 return idx < size ? idx : size;
52 }
53
54 return _find_next_bit(addr, NULL, size, offset, ~0UL, 1);
55 }
56 #endif
57
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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2021-01-25 12:43 [norov:find_bit_static 8/8] include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap' kernel test robot
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