From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: arch/powerpc/mm/book3s32/mmu.c:226:2: error: call to '__compiletime_assert_493' declared with 'error' attribute: BUILD_BUG_ON failed: ALIGN_DOWN(MODULES_VADDR, SZ_256M) < TASK_SIZE
Date: Sat, 26 Apr 2025 12:05:33 +0800 [thread overview]
Message-ID: <202504261245.Eci3yiZs-lkp@intel.com> (raw)
::::::
:::::: Manual check reason: "__compiletime_assert_NNN"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Christophe Leroy <christophe.leroy@csgroup.eu>
CC: Michael Ellerman <mpe@ellerman.id.au>
Hi Christophe,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 02ddfb981de88a2c15621115dd7be2431252c568
commit: 2f2b9a3adc66e978a1248ffb38df8477e8e97c57 powerpc/32s: Reduce default size of module/execmem area
date: 8 months ago
:::::: branch date: 32 hours ago
:::::: commit date: 8 months ago
config: powerpc-randconfig-r111-20250426 (https://download.01.org/0day-ci/archive/20250426/202504261245.Eci3yiZs-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)
reproduce: (https://download.01.org/0day-ci/archive/20250426/202504261245.Eci3yiZs-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@intel.com>
| Closes: https://lore.kernel.org/r/202504261245.Eci3yiZs-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from arch/powerpc/mm/book3s32/mmu.c:21:
In file included from include/linux/mm.h:2228:
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> arch/powerpc/mm/book3s32/mmu.c:226:2: error: call to '__compiletime_assert_493' declared with 'error' attribute: BUILD_BUG_ON failed: ALIGN_DOWN(MODULES_VADDR, SZ_256M) < TASK_SIZE
226 | BUILD_BUG_ON(ALIGN_DOWN(MODULES_VADDR, SZ_256M) < TASK_SIZE);
| ^
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:510:2: note: expanded from macro 'compiletime_assert'
510 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:498:2: note: expanded from macro '_compiletime_assert'
498 | __compiletime_assert(condition, msg, prefix, suffix)
| ^
include/linux/compiler_types.h:491:4: note: expanded from macro '__compiletime_assert'
491 | prefix ## suffix(); \
| ^
<scratch space>:104:1: note: expanded from here
104 | __compiletime_assert_493
| ^
1 warning and 1 error generated.
vim +226 arch/powerpc/mm/book3s32/mmu.c
c4964331971541 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-06-29 195
78cb0945f71419 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2024-03-16 196 int mmu_mark_initmem_nx(void)
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 197 {
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 198 int nb = mmu_has_feature(MMU_FTR_USE_HIGH_BATS) ? 8 : 4;
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 199 int i;
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 200 unsigned long base = (unsigned long)_stext - PAGE_OFFSET;
37eb7ca91b692e arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2021-11-26 201 unsigned long top = ALIGN((unsigned long)_etext - PAGE_OFFSET, SZ_128K);
4b19f96a81bcea arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-05-19 202 unsigned long border = (unsigned long)__init_begin - PAGE_OFFSET;
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 203 unsigned long size;
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 204
37eb7ca91b692e arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2021-11-26 205 for (i = 0; i < nb - 1 && base < top;) {
d37823c3528e5e arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2022-01-10 206 size = bat_block_size(base, top);
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 207 setibat(i++, PAGE_OFFSET + base, base, size, PAGE_KERNEL_TEXT);
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 208 base += size;
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 209 }
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 210 if (base < top) {
d37823c3528e5e arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2022-01-10 211 size = bat_block_size(base, top);
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 212 if ((top - base) > size) {
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 213 size <<= 1;
4b19f96a81bcea arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-05-19 214 if (strict_kernel_rwx_enabled() && base + size > border)
4b19f96a81bcea arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-05-19 215 pr_warn("Some RW data is getting mapped X. "
4b19f96a81bcea arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-05-19 216 "Adjust CONFIG_DATA_SHIFT to avoid that.\n");
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 217 }
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 218 setibat(i++, PAGE_OFFSET + base, base, size, PAGE_KERNEL_TEXT);
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 219 base += size;
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 220 }
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 221 for (; i < nb; i++)
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 222 clearibat(i);
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 223
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 224 update_bats();
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 225
2f2b9a3adc66e9 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2024-08-20 @226 BUILD_BUG_ON(ALIGN_DOWN(MODULES_VADDR, SZ_256M) < TASK_SIZE);
2f2b9a3adc66e9 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2024-08-20 227
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 228 for (i = TASK_SIZE >> 28; i < 16; i++) {
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 229 /* Do not set NX on VM space for modules */
c4964331971541 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-06-29 230 if (is_module_segment(i << 28))
c4964331971541 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-06-29 231 continue;
c4964331971541 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2020-06-29 232
179ae57dbad1b9 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2021-02-06 233 mtsr(mfsr(i << 28) | 0x10000000, i << 28);
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 234 }
78cb0945f71419 arch/powerpc/mm/book3s32/mmu.c Christophe Leroy 2024-03-16 235 return 0;
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 236 }
63b2bc619565ef arch/powerpc/mm/ppc_mmu_32.c Christophe Leroy 2019-02-21 237
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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