linux-kernel - include/linux/compiler_types.h:338:45: error: call to '__compiletime_assert_270' declared with attribute error: BUILD_BUG_ON failed: SECTIONS_WIDTH + NODES_WIDTH + ZONES_WIDTH + ilog2(roundup_pow_of_two(NR

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Message-ID: <202402051630.uyEkSOkn-lkp@intel.com>
Date: Mon, 5 Feb 2024 16:19:47 +0800
From: kernel test robot <lkp@...el.com>
To: Will Deacon <will@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: include/linux/compiler_types.h:338:45: error: call to
 '__compiletime_assert_270' declared with attribute error: BUILD_BUG_ON
 failed: SECTIONS_WIDTH + NODES_WIDTH + ZONES_WIDTH +
 ilog2(roundup_pow_of_two(NR_CPUS)) > 32

Hi Will,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478
commit: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h
date:   3 years, 7 months ago
config: sparc-randconfig-002-20240113 (https://download.01.org/0day-ci/archive/20240205/202402051630.uyEkSOkn-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240205/202402051630.uyEkSOkn-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/202402051630.uyEkSOkn-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/sparc/mm/init_64.c: In function 'sun4v_linear_pte_xor_finalize':
   arch/sparc/mm/init_64.c:2210:23: warning: variable 'pagecv_flag' set but not used [-Wunused-but-set-variable]
    2210 |         unsigned long pagecv_flag;
         |                       ^~~~~~~~~~~
   In file included from <command-line>:
   arch/sparc/mm/init_64.c: In function 'paging_init':
>> include/linux/compiler_types.h:338:45: error: call to '__compiletime_assert_270' declared with attribute error: BUILD_BUG_ON failed: SECTIONS_WIDTH + NODES_WIDTH + ZONES_WIDTH + ilog2(roundup_pow_of_two(NR_CPUS)) > 32
     338 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:319:25: note: in definition of macro '__compiletime_assert'
     319 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:338:9: note: in expansion of macro '_compiletime_assert'
     338 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   arch/sparc/mm/init_64.c:2306:9: note: in expansion of macro 'BUILD_BUG_ON'
    2306 |         BUILD_BUG_ON(SECTIONS_WIDTH + NODES_WIDTH + ZONES_WIDTH +
         |         ^~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for COMPAT_BINFMT_ELF
   Depends on [n]: COMPAT [=y] && BINFMT_ELF [=n]
   Selected by [y]:
   - COMPAT [=y] && SPARC64 [=y]
   WARNING: unmet direct dependencies detected for LOCKDEP
   Depends on [n]: DEBUG_KERNEL [=y] && LOCK_DEBUGGING_SUPPORT [=y] && (FRAME_POINTER [=n] || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86)
   Selected by [y]:
   - LOCK_STAT [=y] && DEBUG_KERNEL [=y] && LOCK_DEBUGGING_SUPPORT [=y]
   - DEBUG_LOCK_ALLOC [=y] && DEBUG_KERNEL [=y] && LOCK_DEBUGGING_SUPPORT [=y]


vim +/__compiletime_assert_270 +338 include/linux/compiler_types.h

   324	
   325	#define _compiletime_assert(condition, msg, prefix, suffix) \
   326		__compiletime_assert(condition, msg, prefix, suffix)
   327	
   328	/**
   329	 * compiletime_assert - break build and emit msg if condition is false
   330	 * @condition: a compile-time constant condition to check
   331	 * @msg:       a message to emit if condition is false
   332	 *
   333	 * In tradition of POSIX assert, this macro will break the build if the
   334	 * supplied condition is *false*, emitting the supplied error message if the
   335	 * compiler has support to do so.
   336	 */
   337	#define compiletime_assert(condition, msg) \
 > 338		_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
   339	

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https://github.com/intel/lkp-tests/wiki