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

Nick Desaulniers
2020-11-11T19:17:49Z

+ Ulrich, Jonas

On Tue, Nov 10, 2020 at 9:29 PM kernel test robot <lkp@intel.com> wrote:
>
> 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/?id=f0cbd3b83ed47803df941865f720934c69abb803
> 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@intel.com>
>
> 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@de.ibm.com>
> :::::: CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>
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--
Thanks,
~Nick Desaulniers