* [linux-next:master 464/10910] include/linux/pgtable.h:167:31: warning: passing argument 1 of 'pud_offset' makes pointer from integer without a cast
@ 2026-09-27 17:54 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-09-27 17:54 UTC (permalink / raw)
To: Matthew Wilcox (Oracle); +Cc: oe-kbuild-all
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: f5f84daefcd92d7a630066635ecea1433ed5eac7
commit: 2854902575ac6d6cfa97e1bf0f134b718d65b16b [464/10910] drm: Remove pagemap from ttm_tt.h header
config: openrisc-randconfig-r2107-20260927 (https://download.01.org/0day-ci/archive/20260927/202609271911.RuEDWNPU-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 9.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260927/202609271911.RuEDWNPU-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/202609271911.RuEDWNPU-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from include/asm-generic/pgtable-nopud.h:7,
from include/asm-generic/pgtable-nopmd.h:7,
from arch/openrisc/include/asm/pgtable.h:24,
from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/asm-generic/pgtable-nop4d.h:9:18: error: unknown type name 'pgd_t'
9 | typedef struct { pgd_t pgd; } p4d_t;
| ^~~~~
include/asm-generic/pgtable-nop4d.h:21:28: error: unknown type name 'pgd_t'; did you mean 'p4d_t'?
21 | static inline int pgd_none(pgd_t pgd) { return 0; }
| ^~~~~
| p4d_t
include/asm-generic/pgtable-nop4d.h:22:27: error: unknown type name 'pgd_t'; did you mean 'p4d_t'?
22 | static inline int pgd_bad(pgd_t pgd) { return 0; }
| ^~~~~
| p4d_t
include/asm-generic/pgtable-nop4d.h:23:31: error: unknown type name 'pgd_t'; did you mean 'p4d_t'?
23 | static inline int pgd_present(pgd_t pgd) { return 1; }
| ^~~~~
| p4d_t
include/asm-generic/pgtable-nop4d.h:24:30: error: unknown type name 'pgd_t'; did you mean 'p4d_t'?
24 | static inline void pgd_clear(pgd_t *pgd) { }
| ^~~~~
| p4d_t
include/asm-generic/pgtable-nop4d.h:35:33: error: unknown type name 'pgd_t'; did you mean 'p4d_t'?
35 | static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
| ^~~~~
| p4d_t
In file included from arch/openrisc/include/asm/fixmap.h:27,
from arch/openrisc/include/asm/pgtable.h:28,
from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
arch/openrisc/include/asm/pgtable.h: In function 'pmd_set':
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/asm-generic/pgtable-nopud.h:48:24: note: in expansion of macro 'p4d_val'
48 | #define pud_val(x) (p4d_val((x).p4d))
| ^~~~~~~
include/asm-generic/pgtable-nopmd.h:52:24: note: in expansion of macro 'pud_val'
52 | #define pmd_val(x) (pud_val((x).pud))
| ^~~~~~~
arch/openrisc/include/asm/pgtable.h:323:2: note: in expansion of macro 'pmd_val'
323 | pmd_val(*pmdp) = _KERNPG_TABLE | (unsigned long) ptep;
| ^~~~~~~
arch/openrisc/include/asm/pgtable.h: In function 'pmd_page_vaddr':
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
arch/openrisc/include/asm/page.h:62:43: note: in definition of macro '__va'
62 | #define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/asm-generic/pgtable-nopud.h:48:24: note: in expansion of macro 'p4d_val'
48 | #define pud_val(x) (p4d_val((x).p4d))
| ^~~~~~~
include/asm-generic/pgtable-nopmd.h:52:24: note: in expansion of macro 'pud_val'
52 | #define pmd_val(x) (pud_val((x).pud))
| ^~~~~~~
arch/openrisc/include/asm/pgtable.h:331:31: note: in expansion of macro 'pmd_val'
331 | return ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK));
| ^~~~~~~
In file included from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
arch/openrisc/include/asm/pgtable.h:329:50: warning: parameter 'pmd' set but not used [-Wunused-but-set-parameter]
329 | static inline unsigned long pmd_page_vaddr(pmd_t pmd)
| ~~~~~~^~~
In file included from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/linux/pgtable.h: In function 'pmd_off':
include/linux/pgtable.h:167:31: error: implicit declaration of function 'p4d_offset'; did you mean 'pmd_offset'? [-Werror=implicit-function-declaration]
167 | return pmd_offset(pud_offset(p4d_offset(pgd_offset(mm, va), va), va), va);
| ^~~~~~~~~~
| pmd_offset
>> include/linux/pgtable.h:167:31: warning: passing argument 1 of 'pud_offset' makes pointer from integer without a cast [-Wint-conversion]
167 | return pmd_offset(pud_offset(p4d_offset(pgd_offset(mm, va), va), va), va);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| int
In file included from include/asm-generic/pgtable-nopmd.h:7,
from arch/openrisc/include/asm/pgtable.h:24,
from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/asm-generic/pgtable-nopud.h:42:40: note: expected 'p4d_t *' {aka 'struct <anonymous> *'} but argument is of type 'int'
42 | static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
| ~~~~~~~^~~
In file included from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/linux/pgtable.h: In function 'pmd_off_k':
include/linux/pgtable.h:172:31: warning: passing argument 1 of 'pud_offset' makes pointer from integer without a cast [-Wint-conversion]
172 | return pmd_offset(pud_offset(p4d_offset(pgd_offset_k(va), va), va), va);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| int
In file included from include/asm-generic/pgtable-nopmd.h:7,
from arch/openrisc/include/asm/pgtable.h:24,
from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/asm-generic/pgtable-nopud.h:42:40: note: expected 'p4d_t *' {aka 'struct <anonymous> *'} but argument is of type 'int'
42 | static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
| ~~~~~~~^~~
In file included from arch/openrisc/include/asm/fixmap.h:27,
from arch/openrisc/include/asm/pgtable.h:28,
from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/linux/pgtable.h: In function 'virt_to_kpte':
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/asm-generic/pgtable-nopud.h:48:24: note: in expansion of macro 'p4d_val'
48 | #define pud_val(x) (p4d_val((x).p4d))
| ^~~~~~~
include/asm-generic/pgtable-nopmd.h:52:24: note: in expansion of macro 'pud_val'
52 | #define pmd_val(x) (pud_val((x).pud))
| ^~~~~~~
arch/openrisc/include/asm/pgtable.h:186:23: note: in expansion of macro 'pmd_val'
186 | #define pmd_none(x) (!pmd_val(x))
| ^~~~~~~
include/linux/pgtable.h:179:9: note: in expansion of macro 'pmd_none'
179 | return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr);
| ^~~~~~~~
include/linux/pgtable.h: In function 'pmd_same':
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/asm-generic/pgtable-nopud.h:48:24: note: in expansion of macro 'p4d_val'
48 | #define pud_val(x) (p4d_val((x).p4d))
| ^~~~~~~
include/asm-generic/pgtable-nopmd.h:52:24: note: in expansion of macro 'pud_val'
52 | #define pmd_val(x) (pud_val((x).pud))
| ^~~~~~~
include/linux/pgtable.h:1369:9: note: in expansion of macro 'pmd_val'
1369 | return pmd_val(pmd_a) == pmd_val(pmd_b);
| ^~~~~~~
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/asm-generic/pgtable-nopud.h:48:24: note: in expansion of macro 'p4d_val'
48 | #define pud_val(x) (p4d_val((x).p4d))
| ^~~~~~~
include/asm-generic/pgtable-nopmd.h:52:24: note: in expansion of macro 'pud_val'
52 | #define pmd_val(x) (pud_val((x).pud))
| ^~~~~~~
include/linux/pgtable.h:1369:27: note: in expansion of macro 'pmd_val'
1369 | return pmd_val(pmd_a) == pmd_val(pmd_b);
| ^~~~~~~
In file included from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/linux/pgtable.h:1367:34: warning: parameter 'pmd_a' set but not used [-Wunused-but-set-parameter]
1367 | static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
| ~~~~~~^~~~~
include/linux/pgtable.h:1367:47: warning: parameter 'pmd_b' set but not used [-Wunused-but-set-parameter]
1367 | static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
| ~~~~~~^~~~~
In file included from arch/openrisc/include/asm/fixmap.h:27,
from arch/openrisc/include/asm/pgtable.h:28,
from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
--
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/linux/pgtable.h: In function 'p4d_same':
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/linux/pgtable.h:1384:9: note: in expansion of macro 'p4d_val'
1384 | return p4d_val(p4d_a) == p4d_val(p4d_b);
| ^~~~~~~
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/linux/pgtable.h:1384:27: note: in expansion of macro 'p4d_val'
1384 | return p4d_val(p4d_a) == p4d_val(p4d_b);
| ^~~~~~~
In file included from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/linux/pgtable.h:1382:34: warning: parameter 'p4d_a' set but not used [-Wunused-but-set-parameter]
1382 | static inline int p4d_same(p4d_t p4d_a, p4d_t p4d_b)
| ~~~~~~^~~~~
include/linux/pgtable.h:1382:47: warning: parameter 'p4d_b' set but not used [-Wunused-but-set-parameter]
1382 | static inline int p4d_same(p4d_t p4d_a, p4d_t p4d_b)
| ~~~~~~^~~~~
include/linux/pgtable.h: In function 'pgd_none_or_clear_bad':
include/linux/pgtable.h:1544:6: error: implicit declaration of function 'pgd_none'; did you mean 'pud_none'? [-Werror=implicit-function-declaration]
1544 | if (pgd_none(*pgd))
| ^~~~~~~~
| pud_none
In file included from include/linux/export.h:5,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:6:
include/linux/pgtable.h:1546:15: error: implicit declaration of function 'pgd_bad'; did you mean 'pud_bad'? [-Werror=implicit-function-declaration]
1546 | if (unlikely(pgd_bad(*pgd))) {
| ^~~~~~~
include/linux/compiler.h:77:42: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from arch/openrisc/include/asm/fixmap.h:27,
from arch/openrisc/include/asm/pgtable.h:28,
from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
include/linux/pgtable.h: In function 'pmd_none_or_clear_bad':
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/asm-generic/pgtable-nopud.h:48:24: note: in expansion of macro 'p4d_val'
48 | #define pud_val(x) (p4d_val((x).p4d))
| ^~~~~~~
include/asm-generic/pgtable-nopmd.h:52:24: note: in expansion of macro 'pud_val'
52 | #define pmd_val(x) (pud_val((x).pud))
| ^~~~~~~
arch/openrisc/include/asm/pgtable.h:186:23: note: in expansion of macro 'pmd_val'
186 | #define pmd_none(x) (!pmd_val(x))
| ^~~~~~~
include/linux/pgtable.h:1577:6: note: in expansion of macro 'pmd_none'
1577 | if (pmd_none(*pmd))
| ^~~~~~~~
In file included from include/linux/export.h:5,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:6:
arch/openrisc/include/asm/page.h:50:24: error: request for member 'pgd' in something not a structure or union
50 | #define pgd_val(x) ((x).pgd)
| ^
include/linux/compiler.h:77:42: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/asm-generic/pgtable-nop4d.h:40:24: note: in expansion of macro 'pgd_val'
40 | #define p4d_val(x) (pgd_val((x).pgd))
| ^~~~~~~
include/asm-generic/pgtable-nopud.h:48:24: note: in expansion of macro 'p4d_val'
48 | #define pud_val(x) (p4d_val((x).p4d))
| ^~~~~~~
include/asm-generic/pgtable-nopmd.h:52:24: note: in expansion of macro 'pud_val'
52 | #define pmd_val(x) (pud_val((x).pud))
| ^~~~~~~
arch/openrisc/include/asm/pgtable.h:187:22: note: in expansion of macro 'pmd_val'
187 | #define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK)) != _KERNPG_TABLE)
| ^~~~~~~
include/linux/pgtable.h:1579:15: note: in expansion of macro 'pmd_bad'
1579 | if (unlikely(pmd_bad(*pmd))) {
| ^~~~~~~
In file included from arch/openrisc/include/asm/pgalloc.h:20,
from arch/openrisc/include/asm/io.h:18,
from include/linux/io.h:12,
from include/linux/iosys-map.h:10,
from include/drm/ttm/ttm_resource.h:31,
from include/drm/ttm/ttm_device.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.h:9,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:10:
include/linux/mm.h: In function 'p4d_alloc':
>> include/linux/mm.h:3639:8: warning: pointer/integer type mismatch in conditional expression
3639 | NULL : p4d_offset(pgd, address);
| ^
In file included from include/linux/pgtable.h:6,
from include/drm/ttm/ttm_caching.h:28,
from include/drm/ttm/ttm_tt.h:31,
from drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c:8:
arch/openrisc/include/asm/pgalloc.h: In function 'pmd_populate':
arch/openrisc/include/asm/page.h:54:18: error: incompatible types when initializing type 'int' using type 'pgd_t' {aka 'struct <anonymous>'}
54 | #define __pgd(x) ((pgd_t) { (x) })
| ^
arch/openrisc/include/asm/pgalloc.h:34:2: note: in expansion of macro 'set_pmd'
34 | set_pmd(pmd, __pmd(_KERNPG_TABLE +
| ^~~~~~~
include/asm-generic/pgtable-nop4d.h:41:32: note: in expansion of macro '__pgd'
41 | #define __p4d(x) ((p4d_t) { __pgd(x) })
| ^~~~~
include/asm-generic/pgtable-nopud.h:49:32: note: in expansion of macro '__p4d'
49 | #define __pud(x) ((pud_t) { __p4d(x) })
| ^~~~~
include/asm-generic/pgtable-nopmd.h:53:32: note: in expansion of macro '__pud'
53 | #define __pmd(x) ((pmd_t) { __pud(x) } )
| ^~~~~
arch/openrisc/include/asm/pgalloc.h:34:15: note: in expansion of macro '__pmd'
34 | set_pmd(pmd, __pmd(_KERNPG_TABLE +
| ^~~~~
cc1: some warnings being treated as errors
vim +/pud_offset +167 include/linux/pgtable.h
974b9b2c68f3d3 Mike Rapoport 2020-06-08 157
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 158 /*
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 159 * In many cases it is known that a virtual address is mapped at PMD or PTE
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 160 * level, so instead of traversing all the page table levels, we can get a
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 161 * pointer to the PMD entry in user or kernel page table or translate a virtual
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 162 * address to the pointer in the PTE in the kernel page tables with simple
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 163 * helpers.
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 164 */
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 165 static inline pmd_t *pmd_off(struct mm_struct *mm, unsigned long va)
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 166 {
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 @167 return pmd_offset(pud_offset(p4d_offset(pgd_offset(mm, va), va), va), va);
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 168 }
e05c7b1f2bc4b7 Mike Rapoport 2020-06-08 169
:::::: The code at line 167 was first introduced by commit
:::::: e05c7b1f2bc4b7b28199b9a7572f73436d97317e mm: pgtable: add shortcuts for accessing kernel PMD and PTE
:::::: TO: Mike Rapoport <rppt@linux.ibm.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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