From: kernel test robot <lkp@intel.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Muhammad Usama Anjum <usama.anjum@arm.com>,
linux-s390@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com
Subject: Re: [PATCH v8 11/15] s390: Distinguish hardware and software PTEs
Date: Thu, 8 Oct 2026 18:32:15 +0800 [thread overview]
Message-ID: <202610081806.wcWlNqQf-lkp@intel.com> (raw)
In-Reply-To: <c22ed0a2d9ff0f4fff69a17332a377c460d993dc.1791365932.git.agordeev@linux.ibm.com>
Hi Alexander,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v7.3-rc6]
[cannot apply to akpm-mm/mm-everything s390/features kvms390/next next-20261006]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Alexander-Gordeev/mm-introduce-hw_pte_t-for-PTE-table-storage/20261007-134144
base: linus/master
patch link: https://lore.kernel.org/r/c22ed0a2d9ff0f4fff69a17332a377c460d993dc.1791365932.git.agordeev%40linux.ibm.com
patch subject: [PATCH v8 11/15] s390: Distinguish hardware and software PTEs
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20261008/202610081806.wcWlNqQf-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 80cd965b6323b208519f8ab1d5ee86e4ea9862f4)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261008/202610081806.wcWlNqQf-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/oe-kbuild-all/202610081806.wcWlNqQf-lkp@intel.com/
All errors (new ones prefixed by >>):
>> mm/damon/vaddr.c:303:45: error: incompatible pointer types passing 'pte_t *' to parameter of type 'hw_pte_t *' (aka 'struct __hw_pte_t *') [-Wincompatible-pointer-types]
303 | *entry = huge_ptep_get_and_clear(mm, addr, pte, psize);
| ^~~
arch/s390/include/asm/hugetlb.h:34:40: note: passing argument to parameter 'ptep' here
34 | unsigned long addr, hw_pte_t *ptep,
| ^
mm/damon/vaddr.c:305:28: error: incompatible pointer types passing 'pte_t *' to parameter of type 'hw_pte_t *' (aka 'struct __hw_pte_t *') [-Wincompatible-pointer-types]
305 | set_huge_pte_at(mm, addr, pte, *entry, psize);
| ^~~
arch/s390/include/asm/hugetlb.h:22:18: note: passing argument to parameter 'ptep' here
22 | hw_pte_t *ptep, pte_t pte, unsigned long sz);
| ^
>> mm/damon/vaddr.c:318:40: error: incompatible pointer types passing 'hw_pte_t *' (aka 'struct __hw_pte_t *') to parameter of type 'pte_t *' [-Wincompatible-pointer-types]
318 | referenced = damon_hugetlb_ptep_mkold(pte, mm, vma, addr, &entry);
| ^~~
mm/damon/vaddr.c:296:45: note: passing argument to parameter 'pte' here
296 | static bool damon_hugetlb_ptep_mkold(pte_t *pte, struct mm_struct *mm,
| ^
3 errors generated.
vim +303 mm/damon/vaddr.c
3f49584b262cf8 SeongJae Park 2021-09-07 294
49f4203aae06ba Baolin Wang 2022-01-14 295 #ifdef CONFIG_HUGETLB_PAGE
39c0ceedd54557 SJ Park 2026-09-07 296 static bool damon_hugetlb_ptep_mkold(pte_t *pte, struct mm_struct *mm,
39c0ceedd54557 SJ Park 2026-09-07 297 struct vm_area_struct *vma, unsigned long addr, pte_t *entry)
39c0ceedd54557 SJ Park 2026-09-07 298 {
39c0ceedd54557 SJ Park 2026-09-07 299 unsigned long psize = huge_page_size(hstate_vma(vma));
39c0ceedd54557 SJ Park 2026-09-07 300
39c0ceedd54557 SJ Park 2026-09-07 301 if (!pte_young(*entry))
39c0ceedd54557 SJ Park 2026-09-07 302 return false;
39c0ceedd54557 SJ Park 2026-09-07 @303 *entry = huge_ptep_get_and_clear(mm, addr, pte, psize);
39c0ceedd54557 SJ Park 2026-09-07 304 *entry = pte_mkold(*entry);
39c0ceedd54557 SJ Park 2026-09-07 305 set_huge_pte_at(mm, addr, pte, *entry, psize);
39c0ceedd54557 SJ Park 2026-09-07 306 return true;
39c0ceedd54557 SJ Park 2026-09-07 307 }
39c0ceedd54557 SJ Park 2026-09-07 308
6ecdfd6e16f5f4 Muhammad Usama Anjum 2026-10-07 309 static void damon_hugetlb_mkold(hw_pte_t *pte, struct mm_struct *mm,
49f4203aae06ba Baolin Wang 2022-01-14 310 struct vm_area_struct *vma, unsigned long addr)
49f4203aae06ba Baolin Wang 2022-01-14 311 {
49f4203aae06ba Baolin Wang 2022-01-14 312 bool referenced = false;
e6c0c03245b14d Christophe Leroy 2024-07-02 313 pte_t entry = huge_ptep_get(mm, addr, pte);
6b7cea90c82e10 Kefeng Wang 2022-12-30 314 struct folio *folio = pfn_folio(pte_pfn(entry));
49f4203aae06ba Baolin Wang 2022-01-14 315
6b7cea90c82e10 Kefeng Wang 2022-12-30 316 folio_get(folio);
49f4203aae06ba Baolin Wang 2022-01-14 317
39c0ceedd54557 SJ Park 2026-09-07 @318 referenced = damon_hugetlb_ptep_mkold(pte, mm, vma, addr, &entry);
49f4203aae06ba Baolin Wang 2022-01-14 319 if (mmu_notifier_clear_young(mm, addr,
49f4203aae06ba Baolin Wang 2022-01-14 320 addr + huge_page_size(hstate_vma(vma))))
49f4203aae06ba Baolin Wang 2022-01-14 321 referenced = true;
49f4203aae06ba Baolin Wang 2022-01-14 322
49f4203aae06ba Baolin Wang 2022-01-14 323 if (referenced)
6b7cea90c82e10 Kefeng Wang 2022-12-30 324 folio_set_young(folio);
49f4203aae06ba Baolin Wang 2022-01-14 325
6b7cea90c82e10 Kefeng Wang 2022-12-30 326 folio_set_idle(folio);
6b7cea90c82e10 Kefeng Wang 2022-12-30 327 folio_put(folio);
49f4203aae06ba Baolin Wang 2022-01-14 328 }
49f4203aae06ba Baolin Wang 2022-01-14 329
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-10-08 10:33 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-07 11:41 [PATCH v8 00/15] s390/mm: Batch PTE updates in lazy MMU mode Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 01/15] mm: introduce hw_pte_t for PTE table storage Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 02/15] mm: rename pointers to software PTE values as ptentp Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 03/15] mm: use hw_pte_t for generic PTE table storage Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 04/15] mm: convert PTE table entries in ptep_get() Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 05/15] mm: convert PTE table entry to pte Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 06/15] mm: add hw_pte_val for HW PTE storage Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 07/15] mm/kasan: use hw_pte_t for the early shadow PTE table Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 08/15] drm/i915: use hw_pte_t for PTE range callbacks Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 09/15] xen: " Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 10/15] s390/mm: Cleanup pXXp_flush_lazy() routines Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 11/15] s390: Distinguish hardware and software PTEs Alexander Gordeev
2026-10-08 10:32 ` kernel test robot [this message]
2026-10-07 11:41 ` [PATCH v8 12/15] mm: Make lazy MMU mode context-aware Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 13/15] s390/mm: Batch PTE updates in lazy MMU mode Alexander Gordeev
2026-10-07 11:41 ` [PATCH v8 14/15] mm/kasan: Introduce helpers for lazy MMU mode sanitizer Alexander Gordeev
2026-10-07 20:24 ` kernel test robot
2026-10-07 20:35 ` kernel test robot
2026-10-08 1:11 ` kernel test robot
2026-10-07 11:41 ` [PATCH v8 15/15] s390/mm: Lazy " Alexander Gordeev
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