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Subject[atishp04:kvm_perf_rfc 15/24] arch/openrisc/include/asm/cmpxchg.h:131:24: error: call to '__cmpxchg_called_with_bad_pointer' declared with attribute error: Bad argument size for cmpxchg
tree:   https://github.com/atishp04/linux kvm_perf_rfc
head: f7c410879b9a723ff8fbc32e4acb668b7fee423a
commit: 20c5f15d297fb5a842bb1488be2781826b65a1dd [15/24] COVER
config: openrisc-randconfig-c024-20220718 (https://download.01.org/0day-ci/archive/20220720/202207200317.VLiEV0Zq-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 12.1.0
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/atishp04/linux/commit/20c5f15d297fb5a842bb1488be2781826b65a1dd
git remote add atishp04 https://github.com/atishp04/linux
git fetch --no-tags atishp04 kvm_perf_rfc
git checkout 20c5f15d297fb5a842bb1488be2781826b65a1dd
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

In file included from arch/openrisc/include/asm/atomic.h:131,
from include/linux/atomic.h:7,
from include/asm-generic/bitops/lock.h:5,
from arch/openrisc/include/asm/bitops.h:41,
from include/linux/bitops.h:33,
from include/linux/kernel.h:22,
from lib/atomic64_test.c:12:
arch/openrisc/include/asm/cmpxchg.h: In function '__cmpxchg':
>> arch/openrisc/include/asm/cmpxchg.h:131:24: error: call to '__cmpxchg_called_with_bad_pointer' declared with attribute error: Bad argument size for cmpxchg
131 | return __cmpxchg_called_with_bad_pointer();
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/__cmpxchg_called_with_bad_pointer +131 arch/openrisc/include/asm/cmpxchg.h

489e0f802db708 Stafford Horne 2017-03-23 113
489e0f802db708 Stafford Horne 2017-03-23 114 /*
489e0f802db708 Stafford Horne 2017-03-23 115 * This function doesn't exist, so you'll get a linker error
489e0f802db708 Stafford Horne 2017-03-23 116 * if something tries to do an invalid cmpxchg().
489e0f802db708 Stafford Horne 2017-03-23 117 */
489e0f802db708 Stafford Horne 2017-03-23 118 extern unsigned long __cmpxchg_called_with_bad_pointer(void)
489e0f802db708 Stafford Horne 2017-03-23 119 __compiletime_error("Bad argument size for cmpxchg");
489e0f802db708 Stafford Horne 2017-03-23 120
489e0f802db708 Stafford Horne 2017-03-23 121 static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
489e0f802db708 Stafford Horne 2017-03-23 122 unsigned long new, int size)
489e0f802db708 Stafford Horne 2017-03-23 123 {
489e0f802db708 Stafford Horne 2017-03-23 124 switch (size) {
489e0f802db708 Stafford Horne 2017-03-23 125 case 1:
489e0f802db708 Stafford Horne 2017-03-23 126 case 2:
489e0f802db708 Stafford Horne 2017-03-23 127 return cmpxchg_small(ptr, old, new, size);
489e0f802db708 Stafford Horne 2017-03-23 128 case 4:
489e0f802db708 Stafford Horne 2017-03-23 129 return cmpxchg_u32(ptr, old, new);
489e0f802db708 Stafford Horne 2017-03-23 130 default:
489e0f802db708 Stafford Horne 2017-03-23 @131 return __cmpxchg_called_with_bad_pointer();
489e0f802db708 Stafford Horne 2017-03-23 132 }
489e0f802db708 Stafford Horne 2017-03-23 133 }
489e0f802db708 Stafford Horne 2017-03-23 134

:::::: The code at line 131 was first introduced by commit
:::::: 489e0f802db708c69004f64d92a3e1b70731614a openrisc: add 1 and 2 byte cmpxchg support

:::::: TO: Stafford Horne <shorne@gmail.com>
:::::: CC: Stafford Horne <shorne@gmail.com>

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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