arch/powerpc/include/asm/book3s/32/tlbflush.h:83:2: error: call to __compiletime_assert_179 declared with 'error' attribute: BUILD_BUG failed

From: kernel test robot
Date: Tue Aug 08 2023 - 17:29:35 EST


Hi Christopher,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 02aee814d37c563e24b73bcd0f9cb608fbd403d4
commit: c28c15b6d28a776538482101522cbcd9f906b15c powerpc/code-patching: Use temporary mm for Radix MMU
date: 8 months ago
config: powerpc-randconfig-r021-20230807 (https://download.01.org/0day-ci/archive/20230809/202308090515.ItaRqhnW-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce: (https://download.01.org/0day-ci/archive/20230809/202308090515.ItaRqhnW-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308090515.ItaRqhnW-lkp@xxxxxxxxx/

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_179 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>:28:1: note: expanded from here
__compiletime_assert_179
^
1 error generated.


vim +/error +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@xxxxxxxxxxxxx>
:::::: CC: Michael Ellerman <mpe@xxxxxxxxxxxxxx>

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