From: kernel test robot <lkp@intel.com>
To: Thomas Gleixner <tglx@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev
Subject: [tglx-devel:irqflags 18/22] arch/parisc/include/asm/bitops.h:21:24: error: static declaration of 'set_bit' follows non-static declaration
Date: Sat, 05 Sep 2026 21:18:30 +0800 [thread overview]
Message-ID: <202609052110.9zgddAMT-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git irqflags
head: 60735555f9a14d6c3e0a576e9ea7bcdb883ce747
commit: 882f996705954c7f6847b915286bbd3d437c3bc7 [18/22] irqflags: Provide refcounted local_irq_*() variants
config: parisc-allnoconfig (https://download.01.org/0day-ci/archive/20260905/202609052110.9zgddAMT-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260905/202609052110.9zgddAMT-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609052110.9zgddAMT-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from ./arch/parisc/include/generated/asm/div64.h:1,
from include/linux/math.h:6,
from include/linux/math64.h:6,
from include/linux/time64.h:5,
from include/linux/restart_block.h:9,
from include/linux/thread_info.h:14,
from include/asm-generic/preempt.h:5,
from ./arch/parisc/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:109,
from include/linux/irqflags.h:16,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:87,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:67,
from include/linux/log2.h:12,
from kernel/bounds.c:14:
include/linux/math64.h: In function 'div_u64_rem':
include/asm-generic/div64.h:185:13: error: implicit declaration of function 'is_power_of_2' [-Wimplicit-function-declaration]
185 | is_power_of_2(__base)) { \
| ^~~~~~~~~~~~~
include/linux/math64.h:106:22: note: in expansion of macro 'do_div'
106 | *remainder = do_div(dividend, divisor);
| ^~~~~~
include/asm-generic/div64.h:187:25: error: implicit declaration of function 'ilog2' [-Wimplicit-function-declaration]
187 | (n) >>= ilog2(__base); \
| ^~~~~
include/linux/math64.h:106:22: note: in expansion of macro 'do_div'
106 | *remainder = do_div(dividend, divisor);
| ^~~~~~
include/linux/thread_info.h: In function 'set_ti_thread_flag':
include/linux/thread_info.h:104:9: error: implicit declaration of function 'set_bit'; did you mean 'test_bit'? [-Wimplicit-function-declaration]
104 | set_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~
| test_bit
include/linux/thread_info.h: In function 'clear_ti_thread_flag':
include/linux/thread_info.h:109:9: error: implicit declaration of function 'clear_bit' [-Wimplicit-function-declaration]
109 | clear_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~~~
include/linux/thread_info.h: In function 'test_and_set_ti_thread_flag':
include/linux/thread_info.h:123:16: error: implicit declaration of function 'test_and_set_bit' [-Wimplicit-function-declaration]
123 | return test_and_set_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~~~~~~~~~~
include/linux/thread_info.h: In function 'test_and_clear_ti_thread_flag':
include/linux/thread_info.h:128:16: error: implicit declaration of function 'test_and_clear_bit'; did you mean 'const___clear_bit'? [-Wimplicit-function-declaration]
128 | return test_and_clear_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~~~~~~~~~~~~
| const___clear_bit
include/linux/thread_info.h: In function 'test_ti_thread_flag':
include/linux/bitops.h:60:47: error: implicit declaration of function '_test_bit'; did you mean 'test_bit'? [-Wimplicit-function-declaration]
60 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr)
| ^~~~~~~~~
include/linux/bitops.h:47:32: note: in definition of macro 'bitop'
47 | const##op(nr, addr) : op(nr, addr))
| ^~
include/linux/thread_info.h:133:16: note: in expansion of macro 'test_bit'
133 | return test_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~~
include/linux/irqflags.h: In function 'raw_safe_halt':
include/linux/irqflags.h:299:9: error: implicit declaration of function 'arch_safe_halt'; did you mean 'raw_safe_halt'? [-Wimplicit-function-declaration]
299 | arch_safe_halt();
| ^~~~~~~~~~~~~~
| raw_safe_halt
arch/parisc/include/asm/bitops.h: At top level:
arch/parisc/include/asm/bitops.h:21:24: warning: conflicting types for 'set_bit'; have 'void(int, volatile long unsigned int *)'
21 | static __inline__ void set_bit(int nr, volatile unsigned long * addr)
| ^~~~~~~
>> arch/parisc/include/asm/bitops.h:21:24: error: static declaration of 'set_bit' follows non-static declaration
include/linux/thread_info.h:104:9: note: previous implicit declaration of 'set_bit' with type 'void(int, volatile long unsigned int *)'
104 | set_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~
arch/parisc/include/asm/bitops.h:32:24: warning: conflicting types for 'clear_bit'; have 'void(int, volatile long unsigned int *)'
32 | static __inline__ void clear_bit(int nr, volatile unsigned long * addr)
| ^~~~~~~~~
>> arch/parisc/include/asm/bitops.h:32:24: error: static declaration of 'clear_bit' follows non-static declaration
include/linux/thread_info.h:109:9: note: previous implicit declaration of 'clear_bit' with type 'void(int, volatile long unsigned int *)'
109 | clear_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~~~
>> arch/parisc/include/asm/bitops.h:54:23: error: static declaration of 'test_and_set_bit' follows non-static declaration
54 | static __inline__ int test_and_set_bit(int nr, volatile unsigned long * addr)
| ^~~~~~~~~~~~~~~~
include/linux/thread_info.h:123:16: note: previous implicit declaration of 'test_and_set_bit' with type 'int()'
123 | return test_and_set_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~~~~~~~~~~
>> arch/parisc/include/asm/bitops.h:72:23: error: static declaration of 'test_and_clear_bit' follows non-static declaration
72 | static __inline__ int test_and_clear_bit(int nr, volatile unsigned long * addr)
| ^~~~~~~~~~~~~~~~~~
include/linux/thread_info.h:128:16: note: previous implicit declaration of 'test_and_clear_bit' with type 'int()'
128 | return test_and_clear_bit(flag, (unsigned long *)&ti->flags);
| ^~~~~~~~~~~~~~~~~~
include/linux/log2.h:45:6: error: conflicting types for 'is_power_of_2'; have 'bool(long unsigned int)' {aka '_Bool(long unsigned int)'}
45 | bool is_power_of_2(unsigned long n)
| ^~~~~~~~~~~~~
include/asm-generic/div64.h:185:13: note: previous implicit declaration of 'is_power_of_2' with type 'int()'
185 | is_power_of_2(__base)) { \
| ^~~~~~~~~~~~~
include/linux/math64.h:106:22: note: in expansion of macro 'do_div'
106 | *remainder = do_div(dividend, divisor);
| ^~~~~~
make[3]: *** [scripts/Makefile.build:185: kernel/bounds.s] Error 1
make[3]: Target 'prepare' not remade because of errors.
make[2]: *** [Makefile:1425: prepare0] Error 2
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:248: __sub-make] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:248: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +/set_bit +21 arch/parisc/include/asm/bitops.h
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 14
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 15 /* See http://marc.theaimsgroup.com/?t=108826637900003 for discussion
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 16 * on use of volatile and __*_bit() (set/clear/change):
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 17 * *_bit() want use of volatile.
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 18 * __*_bit() are "relaxed" and don't use spinlock or volatile.
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 19 */
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 20
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 @21 static __inline__ void set_bit(int nr, volatile unsigned long * addr)
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 22 {
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 23 unsigned long mask = BIT_MASK(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 24 unsigned long flags;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 25
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 26 addr += BIT_WORD(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 27 _atomic_spin_lock_irqsave(addr, flags);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 28 *addr |= mask;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 29 _atomic_spin_unlock_irqrestore(addr, flags);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 30 }
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 31
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 @32 static __inline__ void clear_bit(int nr, volatile unsigned long * addr)
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 33 {
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 34 unsigned long mask = BIT_MASK(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 35 unsigned long flags;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 36
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 37 addr += BIT_WORD(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 38 _atomic_spin_lock_irqsave(addr, flags);
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 39 *addr &= ~mask;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 40 _atomic_spin_unlock_irqrestore(addr, flags);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 41 }
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 42
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 43 static __inline__ void change_bit(int nr, volatile unsigned long * addr)
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 44 {
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 45 unsigned long mask = BIT_MASK(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 46 unsigned long flags;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 47
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 48 addr += BIT_WORD(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 49 _atomic_spin_lock_irqsave(addr, flags);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 50 *addr ^= mask;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 51 _atomic_spin_unlock_irqrestore(addr, flags);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 52 }
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 53
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 @54 static __inline__ int test_and_set_bit(int nr, volatile unsigned long * addr)
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 55 {
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 56 unsigned long mask = BIT_MASK(nr);
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 57 unsigned long old;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 58 unsigned long flags;
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 59 int set;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 60
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 61 addr += BIT_WORD(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 62 _atomic_spin_lock_irqsave(addr, flags);
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 63 old = *addr;
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 64 set = (old & mask) ? 1 : 0;
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 65 if (!set)
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 66 *addr = old | mask;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 67 _atomic_spin_unlock_irqrestore(addr, flags);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 68
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 69 return set;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 70 }
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 71
a366064c3ff46c include/asm-parisc/bitops.h Grant Grundler 2005-10-21 @72 static __inline__ int test_and_clear_bit(int nr, volatile unsigned long * addr)
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 73 {
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 74 unsigned long mask = BIT_MASK(nr);
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 75 unsigned long old;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 76 unsigned long flags;
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 77 int set;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 78
208151bfb70fb7 arch/parisc/include/asm/bitops.h Helge Deller 2020-06-14 79 addr += BIT_WORD(nr);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 80 _atomic_spin_lock_irqsave(addr, flags);
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 81 old = *addr;
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 82 set = (old & mask) ? 1 : 0;
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 83 if (set)
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 84 *addr = old & ~mask;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 85 _atomic_spin_unlock_irqrestore(addr, flags);
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 86
af5917f0cd6071 include/asm-parisc/bitops.h Matthew Wilcox 2006-12-14 87 return set;
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 88 }
^1da177e4c3f41 include/asm-parisc/bitops.h Linus Torvalds 2005-04-16 89
:::::: The code at line 21 was first introduced by commit
:::::: a366064c3ff46c985a3c7243468be197d29874dc [PARISC] Update bitops from parisc tree
:::::: TO: Grant Grundler <grundler@parisc-linux.org>
:::::: CC: Kyle McMartin <kyle@parisc-linux.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-09-05 13:18 UTC|newest]
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