From: kernel test robot <lkp@intel.com>
To: Yury Norov <yury.norov@gmail.com>
Cc: kbuild-all@lists.01.org,
Linux Memory Management List <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [linux-next:master 9083/9190] include/asm-generic/bitops/find.h:164:16: error: implicit declaration of function '__fls'; did you mean '__ffs'?
Date: Tue, 6 Apr 2021 07:54:05 +0800 [thread overview]
Message-ID: <202104060759.aocGJUwA-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 454c576c3f5e51d60f00a4ac0dde07f4f9d70e9d
commit: bd083065154285baeb8af54147adac634a4e0b38 [9083/9190] lib: add fast path for find_first_*_bit() and find_last_bit()
config: h8300-randconfig-r021-20210406 (attached as .config)
compiler: h8300-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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=bd083065154285baeb8af54147adac634a4e0b38
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout bd083065154285baeb8af54147adac634a4e0b38
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300
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/h8300/include/asm/bitops.h:167,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/find.h: In function 'find_last_bit':
>> include/asm-generic/bitops/find.h:164:16: error: implicit declaration of function '__fls'; did you mean '__ffs'? [-Werror=implicit-function-declaration]
164 | return val ? __fls(val) : size;
| ^~~~~
| __ffs
In file included from arch/h8300/include/asm/bitops.h:177,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/__fls.h: At top level:
>> include/asm-generic/bitops/__fls.h:13:38: error: conflicting types for '__fls'
13 | static __always_inline unsigned long __fls(unsigned long word)
| ^~~~~
In file included from arch/h8300/include/asm/bitops.h:167,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/find.h:164:16: note: previous implicit declaration of '__fls' was here
164 | return val ? __fls(val) : size;
| ^~~~~
cc1: some warnings being treated as errors
--
In file included from arch/h8300/include/asm/bitops.h:167,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/find.h: In function 'find_last_bit':
>> include/asm-generic/bitops/find.h:164:16: error: implicit declaration of function '__fls'; did you mean '__ffs'? [-Werror=implicit-function-declaration]
164 | return val ? __fls(val) : size;
| ^~~~~
| __ffs
In file included from arch/h8300/include/asm/bitops.h:177,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/__fls.h: At top level:
>> include/asm-generic/bitops/__fls.h:13:38: error: conflicting types for '__fls'
13 | static __always_inline unsigned long __fls(unsigned long word)
| ^~~~~
In file included from arch/h8300/include/asm/bitops.h:167,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/find.h:164:16: note: previous implicit declaration of '__fls' was here
164 | return val ? __fls(val) : size;
| ^~~~~
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:116: scripts/mod/devicetable-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1234: prepare0] Error 2
make[1]: Target 'modules_prepare' not remade because of errors.
make: *** [Makefile:215: __sub-make] Error 2
make: Target 'modules_prepare' not remade because of errors.
--
In file included from arch/h8300/include/asm/bitops.h:167,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/find.h: In function 'find_last_bit':
>> include/asm-generic/bitops/find.h:164:16: error: implicit declaration of function '__fls'; did you mean '__ffs'? [-Werror=implicit-function-declaration]
164 | return val ? __fls(val) : size;
| ^~~~~
| __ffs
In file included from arch/h8300/include/asm/bitops.h:177,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/__fls.h: At top level:
>> include/asm-generic/bitops/__fls.h:13:38: error: conflicting types for '__fls'
13 | static __always_inline unsigned long __fls(unsigned long word)
| ^~~~~
In file included from arch/h8300/include/asm/bitops.h:167,
from include/linux/bitops.h:32,
from include/linux/log2.h:12,
from include/asm-generic/getorder.h:8,
from include/asm-generic/page.h:95,
from arch/h8300/include/asm/page.h:5,
from arch/h8300/include/asm/string.h:8,
from include/linux/string.h:21,
from include/linux/uuid.h:12,
from include/linux/mod_devicetable.h:13,
from scripts/mod/devicetable-offsets.c:3:
include/asm-generic/bitops/find.h:164:16: note: previous implicit declaration of '__fls' was here
164 | return val ? __fls(val) : size;
| ^~~~~
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:116: scripts/mod/devicetable-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1234: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:215: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +164 include/asm-generic/bitops/find.h
149
150 #ifndef find_last_bit
151 /**
152 * find_last_bit - find the last set bit in a memory region
153 * @addr: The address to start the search at
154 * @size: The number of bits to search
155 *
156 * Returns the bit number of the last set bit, or size.
157 */
158 static inline
159 unsigned long find_last_bit(const unsigned long *addr, unsigned long size)
160 {
161 if (small_const_nbits(size)) {
162 unsigned long val = *addr & GENMASK(size - 1, 0);
163
> 164 return val ? __fls(val) : size;
165 }
166
167 return _find_last_bit(addr, size);
168 }
169 #endif
170
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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reply other threads:[~2021-04-05 23:55 UTC|newest]
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