* [norov:find_bit_static 8/8] include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap'; did you mean
@ 2021-01-20 5:37 kernel test robot
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From: kernel test robot @ 2021-01-20 5:37 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: powerpc-iss476-smp_defconfig (attached as .config)
compiler: powerpc-linux-gcc (GCC) 9.3.0
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/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=gcc-9.3.0 make.cross ARCH=powerpc
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 arch/powerpc/include/asm/bitops.h:265,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/asm-generic/bitops/le.h: In function 'find_next_zero_bit_le':
include/asm-generic/bitops/le.h:45:9: warning: dereferencing 'void *' pointer
45 | val = *addr | ~BITMAP_FIRST_WORD_MASK(offset);
| ^~~~~
include/asm-generic/bitops/le.h:45:9: error: void value not ignored as it ought to be
In file included from arch/powerpc/include/asm/bitops.h:207,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
>> include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap'; did you mean 'swab'? [-Werror=implicit-function-declaration]
49 | idx = ffz(swap(val));
| ^~~~
include/asm-generic/bitops/ffz.h:11:25: note: in definition of macro 'ffz'
11 | #define ffz(x) __ffs(~(x))
| ^
In file included from arch/powerpc/include/asm/bitops.h:265,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/asm-generic/bitops/le.h: In function 'find_next_bit_le':
include/asm-generic/bitops/le.h:69:9: warning: dereferencing 'void *' pointer
69 | val = *addr & BITMAP_FIRST_WORD_MASK(offset)
| ^~~~~
include/asm-generic/bitops/le.h:69:9: error: void value not ignored as it ought to be
cc1: some warnings being treated as errors
--
In file included from arch/powerpc/include/asm/bitops.h:265,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/asm-generic/bitops/le.h: In function 'find_next_zero_bit_le':
include/asm-generic/bitops/le.h:45:9: warning: dereferencing 'void *' pointer
45 | val = *addr | ~BITMAP_FIRST_WORD_MASK(offset);
| ^~~~~
include/asm-generic/bitops/le.h:45:9: error: void value not ignored as it ought to be
In file included from arch/powerpc/include/asm/bitops.h:207,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
>> include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap'; did you mean 'swab'? [-Werror=implicit-function-declaration]
49 | idx = ffz(swap(val));
| ^~~~
include/asm-generic/bitops/ffz.h:11:25: note: in definition of macro 'ffz'
11 | #define ffz(x) __ffs(~(x))
| ^
In file included from arch/powerpc/include/asm/bitops.h:265,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/asm-generic/bitops/le.h: In function 'find_next_bit_le':
include/asm-generic/bitops/le.h:69:9: warning: dereferencing 'void *' pointer
69 | val = *addr & BITMAP_FIRST_WORD_MASK(offset)
| ^~~~~
include/asm-generic/bitops/le.h:69:9: error: void value not ignored as it ought to be
cc1: some warnings being treated as errors
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.
--
WARNING: unmet direct dependencies detected for HOTPLUG_CPU
Depends on SMP && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE
Selected by
- PM_SLEEP_SMP && SMP && (ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE && PM_SLEEP
In file included from arch/powerpc/include/asm/bitops.h:265,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/asm-generic/bitops/le.h: In function 'find_next_zero_bit_le':
include/asm-generic/bitops/le.h:45:9: warning: dereferencing 'void pointer
45 | val = | ~BITMAP_FIRST_WORD_MASK(offset);
| ^~~~~
include/asm-generic/bitops/le.h:45:9: error: void value not ignored as it ought to be
In file included from arch/powerpc/include/asm/bitops.h:207,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
>> include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap'; did you mean
49 | idx = ffz(swap(val));
| ^~~~
include/asm-generic/bitops/ffz.h:11:25: note: in definition of macro 'ffz'
11 | #define ffz(x) __ffs(~(x))
| ^
In file included from arch/powerpc/include/asm/bitops.h:265,
from include/linux/bitops.h:50,
from include/linux/kernel.h:11,
from include/asm-generic/bug.h:20,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/asm-generic/bitops/le.h: In function 'find_next_bit_le':
include/asm-generic/bitops/le.h:69:9: warning: dereferencing 'void pointer
69 | val = & BITMAP_FIRST_WORD_MASK(offset)
| ^~~~~
include/asm-generic/bitops/le.h:69:9: error: void value not ignored as it ought to be
cc1: some warnings being treated as errors
Makefile arch block certs crypto drivers fs include init ipc kernel lib mm net scripts security sound source usr virt [scripts/Makefile.build:117: kernel/bounds.s] Error 1
Target '__build' not remade because of errors.
Makefile arch block certs crypto drivers fs include init ipc kernel lib mm net scripts security sound source usr virt [Makefile:1220: prepare0] Error 2
Target 'prepare' not remade because of errors.
make: Makefile arch block certs crypto drivers fs include init ipc kernel lib mm net scripts security sound source usr virt [Makefile:185: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for HOTPLUG_CPU
Depends on SMP && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE
Selected by
- PM_SLEEP_SMP && SMP && (ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE && PM_SLEEP
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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2021-01-20 5:37 [norov:find_bit_static 8/8] include/asm-generic/bitops/le.h:49:13: error: implicit declaration of function 'swap'; did you mean kernel test robot
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