tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 06a81c1c7db9bd5de0bd38cd5acc44bb22b99150 commit: 47e4937a4a7ca4184fd282791dfee76c6799966a erofs: move erofs out of staging date: 12 months ago config: sparc64-randconfig-s032-20200810 (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-118-ge1578773-dirty git checkout 47e4937a4a7ca4184fd282791dfee76c6799966a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sparc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
sparse warnings: (new ones prefixed by >>)
fs/erofs/zdata.c: note: in included file (through
arch/sparc/include/asm/cmpxchg.h, arch/sparc/include/asm/atomic_64.h,
arch/sparc/include/asm/atomic.h, ...):
>> arch/sparc/include/asm/cmpxchg_64.h:161:50: sparse: sparse: cast truncates
>> bits from constant value (5f0ecafe becomes fe)
>> arch/sparc/include/asm/cmpxchg_64.h:161:50: sparse: sparse: cast truncates
>> bits from constant value (5f0ecafe becomes fe)
>> arch/sparc/include/asm/cmpxchg_64.h:161:55: sparse: sparse: cast truncates
>> bits from constant value (5f0edead becomes ad)
vim +161 arch/sparc/include/asm/cmpxchg_64.h
d550bbd40c0e10 David Howells 2012-03-28 155
d550bbd40c0e10 David Howells 2012-03-28 156 static inline unsigned long
d550bbd40c0e10 David Howells 2012-03-28 157 __cmpxchg(volatile void *ptr,
unsigned long old, unsigned long new, int size)
d550bbd40c0e10 David Howells 2012-03-28 158 {
d550bbd40c0e10 David Howells 2012-03-28 159 switch (size) {
a12ee2349312d7 Babu Moger 2017-05-24 160 case 1:
a12ee2349312d7 Babu Moger 2017-05-24 @161 return
__cmpxchg_u8(ptr, old, new);
d550bbd40c0e10 David Howells 2012-03-28 162 case 4:
d550bbd40c0e10 David Howells 2012-03-28 163 return
__cmpxchg_u32(ptr, old, new);
d550bbd40c0e10 David Howells 2012-03-28 164 case 8:
d550bbd40c0e10 David Howells 2012-03-28 165 return
__cmpxchg_u64(ptr, old, new);
d550bbd40c0e10 David Howells 2012-03-28 166 }
d550bbd40c0e10 David Howells 2012-03-28 167
__cmpxchg_called_with_bad_pointer();
d550bbd40c0e10 David Howells 2012-03-28 168 return old;
d550bbd40c0e10 David Howells 2012-03-28 169 }
d550bbd40c0e10 David Howells 2012-03-28 170
:::::: The code at line 161 was first introduced by commit
:::::: a12ee2349312d7112b9b7c6ac2e70c5ec2ca334e arch/sparc: Introduce
cmpxchg_u8 SPARC
:::::: TO: Babu Moger <babu.mo...@oracle.com>
:::::: CC: David S. Miller <da...@davemloft.net>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
