From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: arch/x86/include/asm/pgtable_64_types.h:21:34: error: conflicting types for 'pte_t'; have 'struct <anonymous>'
Date: Thu, 09 Jul 2026 16:36:14 +0800 [thread overview]
Message-ID: <202607091617.EUrFMELm-lkp@intel.com> (raw)
::::::
:::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/Ahmed-Tiba/ACPI-APEI-GHES-share-macros-via-a-private-header/20260708-220441, commit: f9237a1d5a16cdb9f3d83dd59e5c314f89e27e5c"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Ahmed Tiba <ahmed.tiba@arm.com>
CC: 0day robot <lkp@intel.com>
tree: https://github.com/intel-lab-lkp/linux/commits/Ahmed-Tiba/ACPI-APEI-GHES-share-macros-via-a-private-header/20260708-220441
head: f9237a1d5a16cdb9f3d83dd59e5c314f89e27e5c
commit: f9237a1d5a16cdb9f3d83dd59e5c314f89e27e5c RAS: add firmware-first CPER provider
date: 18 hours ago
:::::: branch date: 18 hours ago
:::::: commit date: 18 hours ago
config: um-allyesconfig (https://download.01.org/0day-ci/archive/20260709/202607091617.EUrFMELm-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260709/202607091617.EUrFMELm-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/202607091617.EUrFMELm-lkp@intel.com/
All errors (new ones prefixed by >>):
arch/um/include/asm/pgtable.h:14:9: note: this is the location of the previous definition
14 | #define _PAGE_PRESENT 0x001
| ^~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:52:9: warning: "_PAGE_RW" redefined
52 | #define _PAGE_RW (_AT(pteval_t, 1) << _PAGE_BIT_RW)
| ^~~~~~~~
arch/um/include/asm/pgtable.h:16:9: note: this is the location of the previous definition
16 | #define _PAGE_RW 0x020
| ^~~~~~~~
arch/x86/include/asm/pgtable_types.h:53:9: warning: "_PAGE_USER" redefined
53 | #define _PAGE_USER (_AT(pteval_t, 1) << _PAGE_BIT_USER)
| ^~~~~~~~~~
arch/um/include/asm/pgtable.h:17:9: note: this is the location of the previous definition
17 | #define _PAGE_USER 0x040
| ^~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:56:9: warning: "_PAGE_ACCESSED" redefined
56 | #define _PAGE_ACCESSED (_AT(pteval_t, 1) << _PAGE_BIT_ACCESSED)
| ^~~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:18:9: note: this is the location of the previous definition
18 | #define _PAGE_ACCESSED 0x080
| ^~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:57:9: warning: "_PAGE_DIRTY" redefined
57 | #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
| ^~~~~~~~~~~
arch/um/include/asm/pgtable.h:19:9: note: this is the location of the previous definition
19 | #define _PAGE_DIRTY 0x100
| ^~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:141:9: warning: "_PAGE_PROTNONE" redefined
141 | #define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
| ^~~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:21:9: note: this is the location of the previous definition
21 | #define _PAGE_PROTNONE 0x010 /* if the user mapped it with PROT_NONE;
| ^~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:155:9: warning: "_PAGE_CHG_MASK" redefined
155 | #define _PAGE_CHG_MASK (_COMMON_PAGE_CHG_MASK | _PAGE_PAT)
| ^~~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:57:9: note: this is the location of the previous definition
57 | #define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
| ^~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:205:9: warning: "PAGE_NONE" redefined
205 | #define PAGE_NONE __pg( 0| 0| 0|___A| 0| 0| 0|___G)
| ^~~~~~~~~
arch/um/include/asm/pgtable.h:60:9: note: this is the location of the previous definition
60 | #define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
| ^~~~~~~~~
arch/x86/include/asm/pgtable_types.h:206:9: warning: "PAGE_SHARED" redefined
206 | #define PAGE_SHARED __pg(__PP|__RW|_USR|___A|__NX| 0| 0| 0)
| ^~~~~~~~~~~
arch/um/include/asm/pgtable.h:61:9: note: this is the location of the previous definition
61 | #define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED)
| ^~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:210:9: warning: "PAGE_COPY" redefined
210 | #define PAGE_COPY __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
| ^~~~~~~~~
arch/um/include/asm/pgtable.h:62:9: note: this is the location of the previous definition
62 | #define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
| ^~~~~~~~~
arch/x86/include/asm/pgtable_types.h:211:9: warning: "PAGE_READONLY" redefined
211 | #define PAGE_READONLY __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
| ^~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:63:9: note: this is the location of the previous definition
63 | #define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
| ^~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:219:9: warning: "_KERNPG_TABLE" redefined
219 | #define _KERNPG_TABLE (__PP|__RW| 0|___A| 0|___D| 0| 0| _ENC)
| ^~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:56:9: note: this is the location of the previous definition
56 | #define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY)
| ^~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:221:9: warning: "_PAGE_TABLE" redefined
221 | #define _PAGE_TABLE (__PP|__RW|_USR|___A| 0|___D| 0| 0| _ENC)
| ^~~~~~~~~~~
arch/um/include/asm/pgtable.h:55:9: note: this is the location of the previous definition
55 | #define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
| ^~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:226:9: warning: "__PAGE_KERNEL_EXEC" redefined
226 | #define __PAGE_KERNEL_EXEC (__PP|__RW| 0|___A| 0|___D| 0|___G)
| ^~~~~~~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:58:9: note: this is the location of the previous definition
58 | #define __PAGE_KERNEL_EXEC \
| ^~~~~~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:247:9: warning: "PAGE_KERNEL" redefined
247 | #define PAGE_KERNEL __pgprot_mask(__PAGE_KERNEL | _ENC)
| ^~~~~~~~~~~
arch/um/include/asm/pgtable.h:64:9: note: this is the location of the previous definition
64 | #define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
| ^~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:249:9: warning: "PAGE_KERNEL_RO" redefined
249 | #define PAGE_KERNEL_RO __pgprot_mask(__PAGE_KERNEL_RO | _ENC)
| ^~~~~~~~~~~~~~
include/linux/pgtable.h:2266:10: note: this is the location of the previous definition
2266 | # define PAGE_KERNEL_RO PAGE_KERNEL
| ^~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:250:9: warning: "PAGE_KERNEL_EXEC" redefined
250 | #define PAGE_KERNEL_EXEC __pgprot_mask(__PAGE_KERNEL_EXEC | _ENC)
| ^~~~~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:65:9: note: this is the location of the previous definition
65 | #define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
| ^~~~~~~~~~~~~~~~
In file included from arch/x86/include/asm/pgtable_types.h:277:
>> arch/x86/include/asm/pgtable_64_types.h:21:34: error: conflicting types for 'pte_t'; have 'struct <anonymous>'
21 | typedef struct { pteval_t pte; } pte_t;
| ^~~~~
arch/um/include/asm/page.h:31:39: note: previous declaration of 'pte_t' with type 'pte_t'
31 | typedef struct { unsigned long pte; } pte_t;
| ^~~~~
>> arch/x86/include/asm/pgtable_64_types.h:22:34: error: conflicting types for 'pmd_t'; have 'struct <anonymous>'
22 | typedef struct { pmdval_t pmd; } pmd_t;
| ^~~~~
arch/um/include/asm/page.h:36:39: note: previous declaration of 'pmd_t' with type 'pmd_t'
36 | typedef struct { unsigned long pmd; } pmd_t;
| ^~~~~
arch/x86/include/asm/pgtable_64_types.h:39:9: warning: "ARCH_PAGE_TABLE_SYNC_MASK" redefined
39 | #define ARCH_PAGE_TABLE_SYNC_MASK \
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:1749:9: note: this is the location of the previous definition
1749 | #define ARCH_PAGE_TABLE_SYNC_MASK 0
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:50:9: warning: "PGDIR_SHIFT" redefined
50 | #define PGDIR_SHIFT pgdir_shift
| ^~~~~~~~~~~
In file included from arch/um/include/asm/pgtable.h:28:
arch/um/include/asm/pgtable-4level.h:14:9: note: this is the location of the previous definition
14 | #define PGDIR_SHIFT 39
| ^~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:56:9: warning: "P4D_SHIFT" redefined
56 | #define P4D_SHIFT 39
| ^~~~~~~~~
In file included from arch/um/include/asm/pgtable-4level.h:10:
include/asm-generic/pgtable-nop4d.h:11:9: note: this is the location of the previous definition
11 | #define P4D_SHIFT PGDIR_SHIFT
| ^~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:57:9: warning: "MAX_PTRS_PER_P4D" redefined
57 | #define MAX_PTRS_PER_P4D 512
| ^~~~~~~~~~~~~~~~
include/linux/pgtable.h:2457:9: note: this is the location of the previous definition
2457 | #define MAX_PTRS_PER_P4D PTRS_PER_P4D
| ^~~~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:58:9: warning: "PTRS_PER_P4D" redefined
58 | #define PTRS_PER_P4D ptrs_per_p4d
| ^~~~~~~~~~~~
include/asm-generic/pgtable-nop4d.h:12:9: note: this is the location of the previous definition
12 | #define PTRS_PER_P4D 1
| ^~~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:59:9: warning: "P4D_SIZE" redefined
59 | #define P4D_SIZE (_AC(1, UL) << P4D_SHIFT)
| ^~~~~~~~
include/asm-generic/pgtable-nop4d.h:13:9: note: this is the location of the previous definition
13 | #define P4D_SIZE (1UL << P4D_SHIFT)
| ^~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:60:9: warning: "P4D_MASK" redefined
60 | #define P4D_MASK (~(P4D_SIZE - 1))
| ^~~~~~~~
include/asm-generic/pgtable-nop4d.h:14:9: note: this is the location of the previous definition
14 | #define P4D_MASK (~(P4D_SIZE-1))
| ^~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:82:9: warning: "PMD_SIZE" redefined
82 | #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
| ^~~~~~~~
arch/um/include/asm/pgtable-4level.h:31:9: note: this is the location of the previous definition
31 | #define PMD_SIZE (1UL << PMD_SHIFT)
| ^~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:83:9: warning: "PMD_MASK" redefined
83 | #define PMD_MASK (~(PMD_SIZE - 1))
| ^~~~~~~~
arch/um/include/asm/pgtable-4level.h:32:9: note: this is the location of the previous definition
32 | #define PMD_MASK (~(PMD_SIZE-1))
| ^~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:84:9: warning: "PUD_SIZE" redefined
84 | #define PUD_SIZE (_AC(1, UL) << PUD_SHIFT)
| ^~~~~~~~
arch/um/include/asm/pgtable-4level.h:23:9: note: this is the location of the previous definition
23 | #define PUD_SIZE (1UL << PUD_SHIFT)
| ^~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:85:9: warning: "PUD_MASK" redefined
85 | #define PUD_MASK (~(PUD_SIZE - 1))
| ^~~~~~~~
arch/um/include/asm/pgtable-4level.h:24:9: note: this is the location of the previous definition
24 | #define PUD_MASK (~(PUD_SIZE-1))
| ^~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:86:9: warning: "PGDIR_SIZE" redefined
86 | #define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
| ^~~~~~~~~~
arch/um/include/asm/pgtable-4level.h:15:9: note: this is the location of the previous definition
15 | #define PGDIR_SIZE (1UL << PGDIR_SHIFT)
| ^~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:87:9: warning: "PGDIR_MASK" redefined
87 | #define PGDIR_MASK (~(PGDIR_SIZE - 1))
| ^~~~~~~~~~
arch/um/include/asm/pgtable-4level.h:16:9: note: this is the location of the previous definition
16 | #define PGDIR_MASK (~(PGDIR_SIZE-1))
| ^~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:116:10: warning: "VMALLOC_START" redefined
116 | # define VMALLOC_START vmalloc_base
| ^~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:50:9: note: this is the location of the previous definition
50 | #define VMALLOC_START ((high_physmem + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
| ^~~~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:133:9: warning: "VMALLOC_END" redefined
133 | #define VMALLOC_END VMEMORY_END
| ^~~~~~~~~~~
arch/um/include/asm/pgtable.h:51:9: note: this is the location of the previous definition
51 | #define VMALLOC_END (TASK_SIZE-2*PAGE_SIZE)
| ^~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:171:9: warning: "MODULES_VADDR" redefined
171 | #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
| ^~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:52:9: note: this is the location of the previous definition
52 | #define MODULES_VADDR VMALLOC_START
| ^~~~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:174:10: warning: "MODULES_END" redefined
174 | # define MODULES_END _AC(0xffffffffff000000, UL)
| ^~~~~~~~~~~
arch/um/include/asm/pgtable.h:53:9: note: this is the location of the previous definition
53 | #define MODULES_END VMALLOC_END
| ^~~~~~~~~~~
arch/x86/include/asm/pgtable_64_types.h:196:9: warning: "_PAGE_SWP_EXCLUSIVE" redefined
196 | #define _PAGE_SWP_EXCLUSIVE _PAGE_PWT
| ^~~~~~~~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:25:9: note: this is the location of the previous definition
25 | #define _PAGE_SWP_EXCLUSIVE 0x400
| ^~~~~~~~~~~~~~~~~~~
>> arch/x86/include/asm/pgtable_types.h:293:47: error: conflicting types for 'pgprot_t'; have 'struct pgprot'
293 | typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
| ^~~~~~~~
arch/um/include/asm/page.h:60:42: note: previous declaration of 'pgprot_t' with type 'pgprot_t'
60 | typedef struct { unsigned long pgprot; } pgprot_t;
| ^~~~~~~~
>> arch/x86/include/asm/pgtable_types.h:295:34: error: conflicting types for 'pgd_t'; have 'struct <anonymous>'
295 | typedef struct { pgdval_t pgd; } pgd_t;
| ^~~~~
arch/um/include/asm/page.h:32:39: note: previous declaration of 'pgd_t' with type 'pgd_t'
32 | typedef struct { unsigned long pgd; } pgd_t;
| ^~~~~
>> arch/x86/include/asm/pgtable_types.h:297:43: error: expected ')' before 'prot'
297 | static inline pgprot_t pgprot_nx(pgprot_t prot)
| ^~~~
include/linux/pgtable.h:1786:26: note: in definition of macro 'pgprot_nx'
1786 | #define pgprot_nx(prot) (prot)
| ^~~~
arch/x86/include/asm/pgtable_types.h:301:9: warning: "pgprot_nx" redefined
301 | #define pgprot_nx pgprot_nx
| ^~~~~~~~~
include/linux/pgtable.h:1786:9: note: this is the location of the previous definition
1786 | #define pgprot_nx(prot) (prot)
| ^~~~~~~~~
arch/x86/include/asm/pgtable_types.h: In function 'native_make_p4d':
>> arch/x86/include/asm/pgtable_types.h:358:33: error: incompatible types when initializing type 'long unsigned int' using type 'pgd_t'
358 | return (p4d_t) { .pgd = native_make_pgd((pgdval_t)val) };
| ^~~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h: In function 'native_p4d_val':
>> arch/x86/include/asm/pgtable_types.h:363:34: error: incompatible type for argument 1 of 'native_pgd_val'
363 | return native_pgd_val(p4d.pgd);
| ~~~^~~~
| |
| pgd_t
arch/x86/include/asm/pgtable_types.h:331:45: note: expected 'pgd_t' but argument is of type 'pgd_t'
331 | static inline pgdval_t native_pgd_val(pgd_t pgd)
| ~~~~~~^~~
arch/x86/include/asm/pgtable_types.h: At top level:
>> arch/x86/include/asm/pgtable_types.h:368:34: error: conflicting types for 'pud_t'; have 'struct <anonymous>'
368 | typedef struct { pudval_t pud; } pud_t;
| ^~~~~
arch/um/include/asm/page.h:42:39: note: previous declaration of 'pud_t' with type 'pud_t'
42 | typedef struct { unsigned long pud; } pud_t;
| ^~~~~
arch/x86/include/asm/pgtable_types.h:521:9: warning: "pgprot_writecombine" redefined
521 | #define pgprot_writecombine pgprot_writecombine
| ^~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:1794:9: note: this is the location of the previous definition
1794 | #define pgprot_writecombine pgprot_noncached
| ^~~~~~~~~~~~~~~~~~~
arch/x86/include/asm/pgtable_types.h:524:9: warning: "pgprot_writethrough" redefined
524 | #define pgprot_writethrough pgprot_writethrough
| ^~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:1798:9: note: this is the location of the previous definition
1798 | #define pgprot_writethrough pgprot_noncached
| ^~~~~~~~~~~~~~~~~~~
vim +21 arch/x86/include/asm/pgtable_64_types.h
54321d947ae9d6 Jeremy Fitzhardinge 2009-02-11 20
54321d947ae9d6 Jeremy Fitzhardinge 2009-02-11 @21 typedef struct { pteval_t pte; } pte_t;
fbfdec9989e69e Peter Zijlstra 2020-11-26 @22 typedef struct { pmdval_t pmd; } pmd_t;
54321d947ae9d6 Jeremy Fitzhardinge 2009-02-11 23
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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