linux-kernel - arch/powerpc/mm/mem.c:428:2: error: call to '__compiletime_assert_303' declared with 'error' attribute: BUILD_BUG_ON failed: TASK_SIZE > MODULES

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Message-ID: <202412112259.KBIIdlFd-lkp@intel.com>
Date: Wed, 11 Dec 2024 22:50:30 +0800
From: kernel test robot <lkp@...el.com>
To: "Mike Rapoport (IBM)" <rppt@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org, Luis Chamberlain <mcgrof@...nel.org>,
	Philippe Mathieu-Daudé <philmd@...aro.org>
Subject: arch/powerpc/mm/mem.c:428:2: error: call to
 '__compiletime_assert_303' declared with 'error' attribute: BUILD_BUG_ON
 failed: TASK_SIZE > MODULES_VADDR

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f92f4749861b06fed908d336b4dee1326003291b
commit: 0cc2dc4902f425e346d46deeea2352d9fba75375 arch: make execmem setup available regardless of CONFIG_MODULES
date:   7 months ago
config: powerpc-randconfig-003-20241209 (https://download.01.org/0day-ci/archive/20241211/202412112259.KBIIdlFd-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241211/202412112259.KBIIdlFd-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412112259.KBIIdlFd-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/mm/mem.c:15:
   In file included from include/linux/memblock.h:12:
   In file included from include/linux/mm.h:2210:
   include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     522 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> arch/powerpc/mm/mem.c:428:2: error: call to '__compiletime_assert_303' declared with 'error' attribute: BUILD_BUG_ON failed: TASK_SIZE > MODULES_VADDR
     428 |         BUILD_BUG_ON(TASK_SIZE > MODULES_VADDR);
         |         ^
   include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^
   include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^
   include/linux/compiler_types.h:467:2: note: expanded from macro 'compiletime_assert'
     467 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^
   include/linux/compiler_types.h:455:2: note: expanded from macro '_compiletime_assert'
     455 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^
   include/linux/compiler_types.h:448:4: note: expanded from macro '__compiletime_assert'
     448 |                         prefix ## suffix();                             \
         |                         ^
   <scratch space>:100:1: note: expanded from here
     100 | __compiletime_assert_303
         | ^
   1 warning and 1 error generated.


vim +428 arch/powerpc/mm/mem.c

   413	
   414	struct execmem_info __init *execmem_arch_setup(void)
   415	{
   416		pgprot_t kprobes_prot = strict_module_rwx_enabled() ? PAGE_KERNEL_ROX : PAGE_KERNEL_EXEC;
   417		pgprot_t prot = strict_module_rwx_enabled() ? PAGE_KERNEL : PAGE_KERNEL_EXEC;
   418		unsigned long fallback_start = 0, fallback_end = 0;
   419		unsigned long start, end;
   420	
   421		/*
   422		 * BOOK3S_32 and 8xx define MODULES_VADDR for text allocations and
   423		 * allow allocating data in the entire vmalloc space
   424		 */
   425	#ifdef MODULES_VADDR
   426		unsigned long limit = (unsigned long)_etext - SZ_32M;
   427	
 > 428		BUILD_BUG_ON(TASK_SIZE > MODULES_VADDR);

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