linux-kernel - [mingo-tip:sched/headers 2102/2574] arch/s390/include/asm/smp.h:20:31: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'boot_cpu_vector_save

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Message-ID: <202202210503.pOOrnRHr-lkp@intel.com>
Date:   Mon, 21 Feb 2022 05:12:12 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [mingo-tip:sched/headers 2102/2574]
 arch/s390/include/asm/smp.h:20:31: error: expected '=', ',', ';', 'asm' or
 '__attribute__' before 'boot_cpu_vector_save_area'

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
head:   39e8a0edc8fae20758051dadf7846849edc18b88
commit: 6e3778bc537864e3af5cdcc1d03ef151bbd79a41 [2102/2574] headers/deps: locking/lockdep: Split <linux/lockep.h> into <linux/lockep_types.h> and <linux/lockep_api.h>
config: s390-randconfig-r044-20220220 (https://download.01.org/0day-ci/archive/20220221/202202210503.pOOrnRHr-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=6e3778bc537864e3af5cdcc1d03ef151bbd79a41
        git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
        git fetch --no-tags mingo-tip sched/headers
        git checkout 6e3778bc537864e3af5cdcc1d03ef151bbd79a41
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 prepare

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/smp_api.h:15,
                    from include/linux/lockdep_api.h:27,
                    from include/linux/rcupdate.h:23,
                    from include/linux/rculist.h:11,
                    from include/linux/hashtable_api.h:16,
                    from include/linux/kvm_host.h:7,
                    from arch/s390/kernel/asm-offsets.c:11:
>> arch/s390/include/asm/smp.h:20:31: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'boot_cpu_vector_save_area'
      20 | extern __vector128 __initdata boot_cpu_vector_save_area[__NUM_VXRS];
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/rcupdate.h:35,
                    from include/linux/rculist.h:11,
                    from include/linux/hashtable_api.h:16,
                    from include/linux/kvm_host.h:7,
                    from arch/s390/kernel/asm-offsets.c:11:
   include/linux/sched/per_task.h:48:11: fatal error: generated/asm-offsets.h: No such file or directory
      48 | # include <generated/asm-offsets.h>
         |           ^~~~~~~~~~~~~~~~~~~~~~~~~
   compilation terminated.
   make[2]: *** [scripts/Makefile.build:121: arch/s390/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1191: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +20 arch/s390/include/asm/smp.h

^1da177e4c3f415 include/asm-s390/smp.h      Linus Torvalds     2005-04-16  16  
dbd70fb499952d0 include/asm-s390/smp.h      Heiko Carstens     2008-04-17  17  extern struct mutex smp_cpu_state_mutex;
10ad34bc76dfbc4 arch/s390/include/asm/smp.h Martin Schwidefsky 2015-01-14  18  extern unsigned int smp_cpu_mt_shift;
10ad34bc76dfbc4 arch/s390/include/asm/smp.h Martin Schwidefsky 2015-01-14  19  extern unsigned int smp_cpu_mtid;
1a36a39e225d355 arch/s390/include/asm/smp.h Martin Schwidefsky 2015-10-29 @20  extern __vector128 __initdata boot_cpu_vector_save_area[__NUM_VXRS];
a052096bdd6809e arch/s390/include/asm/smp.h Sven Schnelle      2021-08-27  21  extern cpumask_t cpu_setup_mask;
8b646bd759086f6 arch/s390/include/asm/smp.h Martin Schwidefsky 2012-03-11  22  

:::::: The code at line 20 was first introduced by commit
:::::: 1a36a39e225d3558fb3776a3d3d7736cf1ec9f60 s390/dump: rework CPU register dump code

:::::: TO: Martin Schwidefsky <schwidefsky@...ibm.com>
:::::: CC: Martin Schwidefsky <schwidefsky@...ibm.com>

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