linux-kernel - arch/powerpc/include/asm/book3s/32/tlbflush.h:83:2: error: call to '__compiletime_assert_175' declared with 'error' attribute: BUILD

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Message-ID: <202301212348.eDkowvfF-lkp@intel.com>
Date:   Sat, 21 Jan 2023 23:49:20 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Christopher M. Riedl" <cmr@...escreens.de>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Gray <bgray@...ux.ibm.com>
Subject: arch/powerpc/include/asm/book3s/32/tlbflush.h:83:2: error: call to
 '__compiletime_assert_175' declared with 'error' attribute: BUILD_BUG failed

Hi Christopher,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f883675bf6522b52cd75dc3de791680375961769
commit: c28c15b6d28a776538482101522cbcd9f906b15c powerpc/code-patching: Use temporary mm for Radix MMU
date:   7 weeks ago
config: powerpc-buildonly-randconfig-r001-20230121 (https://download.01.org/0day-ci/archive/20230121/202301212348.eDkowvfF-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
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 powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c28c15b6d28a776538482101522cbcd9f906b15c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout c28c15b6d28a776538482101522cbcd9f906b15c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/lib/

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

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/lib/code-patching.c:6:
   In file included from include/linux/kprobes.h:28:
   In file included from include/linux/ftrace.h:10:
   In file included from include/linux/trace_recursion.h:5:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from arch/powerpc/include/asm/hardirq.h:6:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:29:
   In file included from include/linux/mm.h:29:
   In file included from include/linux/pgtable.h:6:
   In file included from arch/powerpc/include/asm/pgtable.h:11:
   In file included from arch/powerpc/include/asm/tlbflush.h:6:
   In file included from arch/powerpc/include/asm/book3s/tlbflush.h:8:
>> arch/powerpc/include/asm/book3s/32/tlbflush.h:83:2: error: call to '__compiletime_assert_175' declared with 'error' attribute: BUILD_BUG failed
           BUILD_BUG();
           ^
   include/linux/build_bug.h:59:21: note: expanded from macro 'BUILD_BUG'
   #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
                       ^
   include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
   #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                       ^
   include/linux/compiler_types.h:357:2: note: expanded from macro 'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
           ^
   include/linux/compiler_types.h:345:2: note: expanded from macro '_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
           ^
   include/linux/compiler_types.h:338:4: note: expanded from macro '__compiletime_assert'
                           prefix ## suffix();                             \
                           ^
   <scratch space>:194:1: note: expanded from here
   __compiletime_assert_175
   ^
   1 error generated.


vim +83 arch/powerpc/include/asm/book3s/32/tlbflush.h

274d842fa1efd9 Benjamin Gray 2022-11-09  79  
274d842fa1efd9 Benjamin Gray 2022-11-09  80  static inline void local_flush_tlb_page_psize(struct mm_struct *mm,
274d842fa1efd9 Benjamin Gray 2022-11-09  81  					      unsigned long vmaddr, int psize)
274d842fa1efd9 Benjamin Gray 2022-11-09  82  {
274d842fa1efd9 Benjamin Gray 2022-11-09 @83  	BUILD_BUG();
274d842fa1efd9 Benjamin Gray 2022-11-09  84  }
274d842fa1efd9 Benjamin Gray 2022-11-09  85  

:::::: The code at line 83 was first introduced by commit
:::::: 274d842fa1efd9449e62222c8896e0be11621f1f powerpc/tlb: Add local flush for page given mm_struct and psize

:::::: TO: Benjamin Gray <bgray@...ux.ibm.com>
:::::: CC: Michael Ellerman <mpe@...erman.id.au>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests