* [android-common:android17-6.18 1/1] mm/hmm.c:247:6: error: call to undeclared function 'pte_none_mostly'; ISO C99 and later do not support implicit function declarations
@ 2026-09-29 5:53 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-09-29 5:53 UTC (permalink / raw)
To: cros-kernel-buildreports; +Cc: oe-kbuild-all
Hi Vamsidhar,
FYI, the error/warning still remains.
tree: https://android.googlesource.com/kernel/common android17-6.18
head: 4f02a973d94c2e1b76391568aaf9d316067b9322
commit: ad36ecd6081db9827f1ebaa41671b0b336fd83bf [1/1] ANDROID: GKI: Enable HMM_MIRROR config for all arch
config: arm-randconfig-1001-20260929 (https://download.01.org/0day-ci/archive/20260929/202609291352.m2dqMolh-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 5f609f950d2e80addf5566623013db68394334db)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260929/202609291352.m2dqMolh-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/202609291352.m2dqMolh-lkp@intel.com/
All errors (new ones prefixed by >>):
mm/hmm.c:230:6: error: call to undeclared function 'pte_none'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
230 | if (pte_none(pte) || !pte_present(pte) || pte_protnone(pte))
| ^
mm/hmm.c:230:24: error: call to undeclared function 'pte_present'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
230 | if (pte_none(pte) || !pte_present(pte) || pte_protnone(pte))
| ^
mm/hmm.c:230:44: error: call to undeclared function 'pte_protnone'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
230 | if (pte_none(pte) || !pte_present(pte) || pte_protnone(pte))
| ^
mm/hmm.c:232:9: error: call to undeclared function 'pte_write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
232 | return pte_write(pte) ? (HMM_PFN_VALID | HMM_PFN_WRITE) : HMM_PFN_VALID;
| ^
mm/hmm.c:232:9: note: did you mean 'pgd_write'?
include/linux/hugetlb.h:472:19: note: 'pgd_write' declared here
472 | static inline int pgd_write(pgd_t pgd)
| ^
mm/hmm.c:243:14: error: call to undeclared function 'ptep_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
243 | pte_t pte = ptep_get(ptep);
| ^
>> mm/hmm.c:247:6: error: call to undeclared function 'pte_none_mostly'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
247 | if (pte_none_mostly(pte)) {
| ^
mm/hmm.c:255:7: error: call to undeclared function 'pte_present'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
255 | if (!pte_present(pte)) {
| ^
mm/hmm.c:256:23: error: call to undeclared function 'pte_to_swp_entry'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
256 | swp_entry_t entry = pte_to_swp_entry(pte);
| ^
mm/hmm.c:256:15: error: initializing 'swp_entry_t' with an expression of incompatible type 'int'
256 | swp_entry_t entry = pte_to_swp_entry(pte);
| ^ ~~~~~~~~~~~~~~~~~~~~~
>> mm/hmm.c:262:7: error: call to undeclared function 'is_device_private_entry'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
262 | if (is_device_private_entry(entry) &&
| ^
mm/hmm.c:262:7: note: did you mean 'is_device_private_page'?
include/linux/memremap.h:167:20: note: 'is_device_private_page' declared here
167 | static inline bool is_device_private_page(const struct page *page)
| ^
mm/hmm.c:263:18: error: call to undeclared function 'pfn_swap_entry_to_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
263 | page_pgmap(pfn_swap_entry_to_page(entry))->owner ==
| ^
mm/hmm.c:263:18: error: incompatible integer to pointer conversion passing 'int' to parameter of type 'const struct page *' [-Wint-conversion]
263 | page_pgmap(pfn_swap_entry_to_page(entry))->owner ==
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mmzone.h:1245:65: note: passing argument to parameter 'page' here
1245 | static inline struct dev_pagemap *page_pgmap(const struct page *page)
| ^
mm/hmm.c:266:8: error: call to undeclared function 'is_writable_device_private_entry'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
266 | if (is_writable_device_private_entry(entry))
| ^
mm/hmm.c:268:20: error: call to undeclared function 'swp_offset_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
268 | new_pfn_flags = swp_offset_pfn(entry) | cpu_flags;
| ^
mm/hmm.c:277:8: error: call to undeclared function 'non_swap_entry'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
277 | if (!non_swap_entry(entry))
| ^
mm/hmm.c:277:8: note: did you mean 'page_swap_entry'?
include/linux/swap.h:316:27: note: 'page_swap_entry' declared here
316 | static inline swp_entry_t page_swap_entry(struct page *page)
| ^
mm/hmm.c:283:7: error: call to undeclared function 'is_device_exclusive_entry'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
283 | if (is_device_exclusive_entry(entry))
| ^
mm/hmm.c:286:7: error: call to undeclared function 'is_migration_entry'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
286 | if (is_migration_entry(entry)) {
| ^
mm/hmm.c:287:4: error: call to undeclared function 'pte_unmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
287 | pte_unmap(ptep);
| ^
mm/hmm.c:287:4: note: did you mean 'memunmap'?
include/linux/io.h:159:6: note: 'memunmap' declared here
159 | void memunmap(void *addr);
| ^
mm/hmm.c:289:4: error: call to undeclared function 'migration_entry_wait'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
289 | migration_entry_wait(walk->mm, pmdp, addr);
| ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for USB_PHY
Depends on [n]: USB_SUPPORT [=n]
Selected by [y]:
- GKI_HIDDEN_USB_CONFIGS [=y]
WARNING: unmet direct dependencies detected for SND_JACK
Depends on [n]: SOUND [=n] && SND [=n]
Selected by [y]:
- GKI_HIDDEN_SND_CONFIGS [=y]
WARNING: unmet direct dependencies detected for SND_VMASTER
Depends on [n]: SOUND [=n] && SND [=n]
Selected by [y]:
- GKI_HIDDEN_SND_CONFIGS [=y]
WARNING: unmet direct dependencies detected for CAN_RX_OFFLOAD
Depends on [n]: NETDEVICES [=y] && CAN_DEV [=y] && CAN_NETLINK [=n]
Selected by [y]:
- GKI_HIDDEN_MCP251XFD_CONFIGS [=y]
WARNING: unmet direct dependencies detected for SND_JACK_INPUT_DEV
Depends on [n]: SOUND [=n] && SND [=n] && SND_JACK [=y]
Selected by [y]:
- GKI_HIDDEN_SND_CONFIGS [=y]
WARNING: unmet direct dependencies detected for WEXT_PROC
Depends on [n]: NET [=y] && WIRELESS [=n] && PROC_FS [=y] && WEXT_CORE [=y]
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for SND_PCM_ELD
Depends on [n]: SOUND [=n] && SND [=n]
Selected by [y]:
- GKI_HIDDEN_SND_CONFIGS [=y]
WARNING: unmet direct dependencies detected for WEXT_PRIV
Depends on [n]: NET [=y] && WIRELESS [=n]
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for HMM_MIRROR
Depends on [n]: MMU [=n]
Selected by [y]:
- GKI_HIDDEN_DRM_CONFIGS [=y] && DRM [=y]
WARNING: unmet direct dependencies detected for DRM_GEM_SHMEM_HELPER
Depends on [n]: HAS_IOMEM [=y] && DRM [=y] && MMU [=n]
Selected by [y]:
- GKI_HIDDEN_DRM_CONFIGS [=y] && DRM [=y]
WARNING: unmet direct dependencies detected for BALLOON_COMPACTION
Depends on [n]: COMPACTION [=n] && MEMORY_BALLOON [=y]
Selected by [y]:
- GKI_HIDDEN_MM_CONFIGS [=y]
WARNING: unmet direct dependencies detected for DRM_TTM
Depends on [n]: HAS_IOMEM [=y] && DRM [=y] && MMU [=n]
Selected by [y]:
- GKI_HIDDEN_DRM_CONFIGS [=y] && HAS_IOMEM [=y] && DRM [=y]
WARNING: unmet direct dependencies detected for SND_PCM_IEC958
Depends on [n]: SOUND [=n] && SND [=n]
Selected by [y]:
- GKI_HIDDEN_SND_SOC_CONFIGS [=y]
WARNING: unmet direct dependencies detected for IOMMU_SVA
Depends on [n]: IOMMU_SUPPORT [=n]
Selected by [y]:
- GKI_HIDDEN_IOMMU_CONFIGS [=y]
WARNING: unmet direct dependencies detected for WIRELESS_EXT
Depends on [n]: NET [=y] && WIRELESS [=n]
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for WEXT_CORE
Depends on [n]: NET [=y] && WIRELESS [=n] && (CFG80211_WEXT [=n] || WIRELESS_EXT [=y])
Selected by [y]:
- GKI_LEGACY_WEXT_ALLCONFIG [=y]
WARNING: unmet direct dependencies detected for SND_COMPRESS_ACCEL
Depends on [n]: SOUND [=n] && SND [=n]
Selected by [y]:
- GKI_HIDDEN_SND_CONFIGS [=y]
vim +/pte_none_mostly +247 mm/hmm.c
2aee09d8c11642 Jérôme Glisse 2018-04-10 234
53f5c3f489ecdd Jérôme Glisse 2018-04-10 235 static int hmm_vma_handle_pte(struct mm_walk *walk, unsigned long addr,
53f5c3f489ecdd Jérôme Glisse 2018-04-10 236 unsigned long end, pmd_t *pmdp, pte_t *ptep,
2733ea144dcce7 Jason Gunthorpe 2020-05-01 237 unsigned long *hmm_pfn)
53f5c3f489ecdd Jérôme Glisse 2018-04-10 238 {
53f5c3f489ecdd Jérôme Glisse 2018-04-10 239 struct hmm_vma_walk *hmm_vma_walk = walk->private;
f88a1e90c66540 Jérôme Glisse 2018-04-10 240 struct hmm_range *range = hmm_vma_walk->range;
a3eb13c1579ba9 Jason Gunthorpe 2020-03-27 241 unsigned int required_fault;
2733ea144dcce7 Jason Gunthorpe 2020-05-01 242 unsigned long cpu_flags;
c33c794828f212 Ryan Roberts 2023-06-12 243 pte_t pte = ptep_get(ptep);
2733ea144dcce7 Jason Gunthorpe 2020-05-01 244 uint64_t pfn_req_flags = *hmm_pfn;
285e871884ff3d Leon Romanovsky 2025-04-28 245 uint64_t new_pfn_flags = 0;
da4c3c735ea4dc Jérôme Glisse 2017-09-08 246
5c041f5d1f23d3 Peter Xu 2022-05-12 @247 if (pte_none_mostly(pte)) {
2733ea144dcce7 Jason Gunthorpe 2020-05-01 248 required_fault =
2733ea144dcce7 Jason Gunthorpe 2020-05-01 249 hmm_pte_need_fault(hmm_vma_walk, pfn_req_flags, 0);
a3eb13c1579ba9 Jason Gunthorpe 2020-03-27 250 if (required_fault)
74eee180b935fc Jérôme Glisse 2017-09-08 251 goto fault;
285e871884ff3d Leon Romanovsky 2025-04-28 252 goto out;
74eee180b935fc Jérôme Glisse 2017-09-08 253 }
74eee180b935fc Jérôme Glisse 2017-09-08 254
74eee180b935fc Jérôme Glisse 2017-09-08 255 if (!pte_present(pte)) {
8d63e4cd62b258 Ralph Campbell 2018-01-31 256 swp_entry_t entry = pte_to_swp_entry(pte);
74eee180b935fc Jérôme Glisse 2017-09-08 257
74eee180b935fc Jérôme Glisse 2017-09-08 258 /*
8a295dbbaf7292 Ralph Campbell 2022-07-25 259 * Don't fault in device private pages owned by the caller,
8a295dbbaf7292 Ralph Campbell 2022-07-25 260 * just report the PFN.
74eee180b935fc Jérôme Glisse 2017-09-08 261 */
8a295dbbaf7292 Ralph Campbell 2022-07-25 @262 if (is_device_private_entry(entry) &&
82ba975e4c43d9 Alistair Popple 2025-02-28 263 page_pgmap(pfn_swap_entry_to_page(entry))->owner ==
8a295dbbaf7292 Ralph Campbell 2022-07-25 264 range->dev_private_owner) {
2733ea144dcce7 Jason Gunthorpe 2020-05-01 265 cpu_flags = HMM_PFN_VALID;
4dd845b5a3e57a Alistair Popple 2021-06-30 266 if (is_writable_device_private_entry(entry))
2733ea144dcce7 Jason Gunthorpe 2020-05-01 267 cpu_flags |= HMM_PFN_WRITE;
285e871884ff3d Leon Romanovsky 2025-04-28 268 new_pfn_flags = swp_offset_pfn(entry) | cpu_flags;
285e871884ff3d Leon Romanovsky 2025-04-28 269 goto out;
53f5c3f489ecdd Jérôme Glisse 2018-04-10 270 }
53f5c3f489ecdd Jérôme Glisse 2018-04-10 271
2733ea144dcce7 Jason Gunthorpe 2020-05-01 272 required_fault =
2733ea144dcce7 Jason Gunthorpe 2020-05-01 273 hmm_pte_need_fault(hmm_vma_walk, pfn_req_flags, 0);
285e871884ff3d Leon Romanovsky 2025-04-28 274 if (!required_fault)
285e871884ff3d Leon Romanovsky 2025-04-28 275 goto out;
76612d6ce4ccd2 Jason Gunthorpe 2020-02-28 276
76612d6ce4ccd2 Jason Gunthorpe 2020-02-28 277 if (!non_swap_entry(entry))
76612d6ce4ccd2 Jason Gunthorpe 2020-02-28 278 goto fault;
76612d6ce4ccd2 Jason Gunthorpe 2020-02-28 279
8a295dbbaf7292 Ralph Campbell 2022-07-25 280 if (is_device_private_entry(entry))
8a295dbbaf7292 Ralph Campbell 2022-07-25 281 goto fault;
8a295dbbaf7292 Ralph Campbell 2022-07-25 282
b756a3b5e7ead8 Alistair Popple 2021-06-30 283 if (is_device_exclusive_entry(entry))
b756a3b5e7ead8 Alistair Popple 2021-06-30 284 goto fault;
b756a3b5e7ead8 Alistair Popple 2021-06-30 285
53f5c3f489ecdd Jérôme Glisse 2018-04-10 286 if (is_migration_entry(entry)) {
74eee180b935fc Jérôme Glisse 2017-09-08 287 pte_unmap(ptep);
74eee180b935fc Jérôme Glisse 2017-09-08 288 hmm_vma_walk->last = addr;
d2e8d551165ccb Ralph Campbell 2019-07-25 289 migration_entry_wait(walk->mm, pmdp, addr);
73231612dc7c90 Jérôme Glisse 2019-05-13 290 return -EBUSY;
74eee180b935fc Jérôme Glisse 2017-09-08 291 }
53f5c3f489ecdd Jérôme Glisse 2018-04-10 292
53f5c3f489ecdd Jérôme Glisse 2018-04-10 293 /* Report error for everything else */
dfdc22078f3f06 Jason Gunthorpe 2020-02-28 294 pte_unmap(ptep);
53f5c3f489ecdd Jérôme Glisse 2018-04-10 295 return -EFAULT;
da4c3c735ea4dc Jérôme Glisse 2017-09-08 296 }
da4c3c735ea4dc Jérôme Glisse 2017-09-08 297
76612d6ce4ccd2 Jason Gunthorpe 2020-02-28 298 cpu_flags = pte_to_hmm_pfn_flags(range, pte);
2733ea144dcce7 Jason Gunthorpe 2020-05-01 299 required_fault =
2733ea144dcce7 Jason Gunthorpe 2020-05-01 300 hmm_pte_need_fault(hmm_vma_walk, pfn_req_flags, cpu_flags);
a3eb13c1579ba9 Jason Gunthorpe 2020-03-27 301 if (required_fault)
74eee180b935fc Jérôme Glisse 2017-09-08 302 goto fault;
74eee180b935fc Jérôme Glisse 2017-09-08 303
ac541f25037229 Ralph Campbell 2019-10-23 304 /*
40550627492291 Jason Gunthorpe 2020-03-05 305 * Since each architecture defines a struct page for the zero page, just
40550627492291 Jason Gunthorpe 2020-03-05 306 * fall through and treat it like a normal page.
ac541f25037229 Ralph Campbell 2019-10-23 307 */
87c01d57fa23de Alistair Popple 2022-01-14 308 if (!vm_normal_page(walk->vma, addr, pte) &&
4b42fb213678d2 Li Zhijian 2021-09-08 309 !is_zero_pfn(pte_pfn(pte))) {
2733ea144dcce7 Jason Gunthorpe 2020-05-01 310 if (hmm_pte_need_fault(hmm_vma_walk, pfn_req_flags, 0)) {
40550627492291 Jason Gunthorpe 2020-03-05 311 pte_unmap(ptep);
40550627492291 Jason Gunthorpe 2020-03-05 312 return -EFAULT;
40550627492291 Jason Gunthorpe 2020-03-05 313 }
285e871884ff3d Leon Romanovsky 2025-04-28 314 new_pfn_flags = HMM_PFN_ERROR;
285e871884ff3d Leon Romanovsky 2025-04-28 315 goto out;
ac541f25037229 Ralph Campbell 2019-10-23 316 }
992de9a8b75116 Jérôme Glisse 2019-05-13 317
285e871884ff3d Leon Romanovsky 2025-04-28 318 new_pfn_flags = pte_pfn(pte) | cpu_flags;
285e871884ff3d Leon Romanovsky 2025-04-28 319 out:
285e871884ff3d Leon Romanovsky 2025-04-28 320 *hmm_pfn = (*hmm_pfn & HMM_PFN_INOUT_FLAGS) | new_pfn_flags;
53f5c3f489ecdd Jérôme Glisse 2018-04-10 321 return 0;
74eee180b935fc Jérôme Glisse 2017-09-08 322
74eee180b935fc Jérôme Glisse 2017-09-08 323 fault:
74eee180b935fc Jérôme Glisse 2017-09-08 324 pte_unmap(ptep);
5504ed29692faa Jérôme Glisse 2018-04-10 325 /* Fault any virtual address we were asked to fault */
a3eb13c1579ba9 Jason Gunthorpe 2020-03-27 326 return hmm_vma_fault(addr, end, required_fault, walk);
53f5c3f489ecdd Jérôme Glisse 2018-04-10 327 }
53f5c3f489ecdd Jérôme Glisse 2018-04-10 328
:::::: The code at line 247 was first introduced by commit
:::::: 5c041f5d1f23d3a172dd0db3215634c484b4acd6 mm: teach core mm about pte markers
:::::: TO: Peter Xu <peterx@redhat.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-09-29 5:53 [android-common:android17-6.18 1/1] mm/hmm.c:247:6: error: call to undeclared function 'pte_none_mostly'; ISO C99 and later do not support implicit function declarations kernel test robot
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