arch/s390/include/asm/atomic_ops.h:56:45: error: invalid operand for inline asm constraint 'i'

Wednesday, 11 November 2020

Hi Vasily,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   eccc876724927ff3b9ff91f36f7b6b159e948f0c
commit: f0cbd3b83ed47803df941865f720934c69abb803 s390/atomic: circumvent gcc 10 build
regression
date:   3 months ago
config: s390-randconfig-r013-20201110 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
4d81c8adb6ed9840257f6cb6b93f60856d422a15)
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
        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        #
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
        git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout f0cbd3b83ed47803df941865f720934c69abb803
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com&gt;

All errors (new ones prefixed by >>):

   In file included from drivers/tty/tty_buffer.c:8:
   In file included from include/linux/tty.h:5:
   In file included from include/linux/fs.h:6:
   In file included from include/linux/wait_bit.h:8:
   In file included from include/linux/wait.h:7:
   In file included from include/linux/list.h:9:
   In file included from include/linux/kernel.h:12:
   In file included from include/linux/bitops.h:29:
   In file included from arch/s390/include/asm/bitops.h:39:
...
> arch/s390/include/asm/atomic_ops.h:56:45: error: invalid operand
for inline asm constraint 'i'    __ATOMIC_CONST_OPS(__atomic_add_const, int,
"asi")
                                               ^
   1 error generated.

vim +/i +56 arch/s390/include/asm/atomic_ops.h

126b30c3cb476c Martin Schwidefsky 2016-11-11  51  
eb3b7b848fb3dd Martin Schwidefsky 2017-03-24  52  #define __ATOMIC_CONST_OPS(op_name,
op_type, op_string)			\
eb3b7b848fb3dd Martin Schwidefsky 2017-03-24  53  	__ATOMIC_CONST_OP(op_name, op_type,
op_string, "\n")		\
eb3b7b848fb3dd Martin Schwidefsky 2017-03-24  54  	__ATOMIC_CONST_OP(op_name##_barrier,
op_type, op_string, "bcr 14,0\n")
eb3b7b848fb3dd Martin Schwidefsky 2017-03-24  55  
eb3b7b848fb3dd Martin Schwidefsky 2017-03-24 @56  __ATOMIC_CONST_OPS(__atomic_add_const,
int, "asi")
eb3b7b848fb3dd Martin Schwidefsky 2017-03-24  57  __ATOMIC_CONST_OPS(__atomic64_add_const,
long, "agsi")
eb3b7b848fb3dd Martin Schwidefsky 2017-03-24  58  

:::::: The code at line 56 was first introduced by commit
:::::: eb3b7b848fb3dd00f7a57d633d4ae4d194aa7865 s390/rwlock: introduce rwlock wait
queueing

:::::: TO: Martin Schwidefsky <schwidefsky(a)de.ibm.com&gt;
:::::: CC: Martin Schwidefsky <schwidefsky(a)de.ibm.com&gt;

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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