[ardb:arm64-ro-page-tables-pkvm-v5.17 26/26] include/asm-generic/memory_model.h:34:35: error: initialization of 'const struct page *' from incompatible pointer type 'pgtable_t' {aka 'pte_t *'}
From: kernel test robot
Date: Fri Jan 28 2022 - 21:54:56 EST
tree: git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git arm64-ro-page-tables-pkvm-v5.17
head: b38f2df95cbf61e70bc32017da5318d1cb03e3e3
commit: b38f2df95cbf61e70bc32017da5318d1cb03e3e3 [26/26] mm: HACK provide target address when migrating a PMD entry
config: sparc64-randconfig-r022-20220127 (https://download.01.org/0day-ci/archive/20220129/202201291020.m7uI10Dk-lkp@xxxxxxxxx/config)
compiler: sparc64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?id=b38f2df95cbf61e70bc32017da5318d1cb03e3e3
git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
git fetch --no-tags ardb arm64-ro-page-tables-pkvm-v5.17
git checkout b38f2df95cbf61e70bc32017da5318d1cb03e3e3
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
In file included from arch/sparc/include/asm/page.h:8,
from arch/sparc/include/asm/thread_info_64.h:27,
from arch/sparc/include/asm/thread_info.h:5,
from include/linux/thread_info.h:60,
from include/asm-generic/preempt.h:5,
from ./arch/sparc/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:55,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:6,
from include/linux/mm.h:10,
from mm/huge_memory.c:8:
mm/huge_memory.c: In function '__split_huge_zero_page_pmd':
>> include/asm-generic/memory_model.h:34:35: error: initialization of 'const struct page *' from incompatible pointer type 'pgtable_t' {aka 'pte_t *'} [-Werror=incompatible-pointer-types]
34 | ({ const struct page *__pg = (pg); \
| ^
arch/sparc/include/asm/page_64.h:85:37: note: in definition of macro '__pmd'
85 | #define __pmd(x) ((pmd_t) { (x) } )
| ^
include/asm-generic/memory_model.h:52:21: note: in expansion of macro '__page_to_pfn'
52 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
arch/sparc/include/asm/page.h:5:34: note: in expansion of macro 'page_to_pfn'
5 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
| ^~~~~~~~~~~
mm/huge_memory.c:1956:42: note: in expansion of macro 'page_to_phys'
1956 | set_pmd_at(mm, haddr, pmd, __pmd(page_to_phys(pgtable) | PMD_TYPE_TABLE));
| ^~~~~~~~~~~~
include/asm-generic/memory_model.h:34:35: note: (near initialization for '(anonymous)')
34 | ({ const struct page *__pg = (pg); \
| ^
arch/sparc/include/asm/page_64.h:85:37: note: in definition of macro '__pmd'
85 | #define __pmd(x) ((pmd_t) { (x) } )
| ^
include/asm-generic/memory_model.h:52:21: note: in expansion of macro '__page_to_pfn'
52 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
arch/sparc/include/asm/page.h:5:34: note: in expansion of macro 'page_to_pfn'
5 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
| ^~~~~~~~~~~
mm/huge_memory.c:1956:42: note: in expansion of macro 'page_to_phys'
1956 | set_pmd_at(mm, haddr, pmd, __pmd(page_to_phys(pgtable) | PMD_TYPE_TABLE));
| ^~~~~~~~~~~~
mm/huge_memory.c:1956:66: error: 'PMD_TYPE_TABLE' undeclared (first use in this function)
1956 | set_pmd_at(mm, haddr, pmd, __pmd(page_to_phys(pgtable) | PMD_TYPE_TABLE));
| ^~~~~~~~~~~~~~
arch/sparc/include/asm/page_64.h:85:37: note: in definition of macro '__pmd'
85 | #define __pmd(x) ((pmd_t) { (x) } )
| ^
mm/huge_memory.c:1956:66: note: each undeclared identifier is reported only once for each function it appears in
1956 | set_pmd_at(mm, haddr, pmd, __pmd(page_to_phys(pgtable) | PMD_TYPE_TABLE));
| ^~~~~~~~~~~~~~
arch/sparc/include/asm/page_64.h:85:37: note: in definition of macro '__pmd'
85 | #define __pmd(x) ((pmd_t) { (x) } )
| ^
mm/huge_memory.c: In function '__split_huge_pmd_locked':
>> include/asm-generic/memory_model.h:34:35: error: initialization of 'const struct page *' from incompatible pointer type 'pgtable_t' {aka 'pte_t *'} [-Werror=incompatible-pointer-types]
34 | ({ const struct page *__pg = (pg); \
| ^
arch/sparc/include/asm/page_64.h:85:37: note: in definition of macro '__pmd'
85 | #define __pmd(x) ((pmd_t) { (x) } )
| ^
include/asm-generic/memory_model.h:52:21: note: in expansion of macro '__page_to_pfn'
52 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
arch/sparc/include/asm/page.h:5:34: note: in expansion of macro 'page_to_pfn'
5 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
| ^~~~~~~~~~~
mm/huge_memory.c:2137:42: note: in expansion of macro 'page_to_phys'
2137 | set_pmd_at(mm, haddr, pmd, __pmd(page_to_phys(pgtable) | PMD_TYPE_TABLE));
| ^~~~~~~~~~~~
include/asm-generic/memory_model.h:34:35: note: (near initialization for '(anonymous)')
34 | ({ const struct page *__pg = (pg); \
| ^
arch/sparc/include/asm/page_64.h:85:37: note: in definition of macro '__pmd'
85 | #define __pmd(x) ((pmd_t) { (x) } )
| ^
include/asm-generic/memory_model.h:52:21: note: in expansion of macro '__page_to_pfn'
52 | #define page_to_pfn __page_to_pfn
| ^~~~~~~~~~~~~
arch/sparc/include/asm/page.h:5:34: note: in expansion of macro 'page_to_pfn'
5 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
| ^~~~~~~~~~~
mm/huge_memory.c:2137:42: note: in expansion of macro 'page_to_phys'
2137 | set_pmd_at(mm, haddr, pmd, __pmd(page_to_phys(pgtable) | PMD_TYPE_TABLE));
| ^~~~~~~~~~~~
mm/huge_memory.c:2137:66: error: 'PMD_TYPE_TABLE' undeclared (first use in this function)
2137 | set_pmd_at(mm, haddr, pmd, __pmd(page_to_phys(pgtable) | PMD_TYPE_TABLE));
| ^~~~~~~~~~~~~~
arch/sparc/include/asm/page_64.h:85:37: note: in definition of macro '__pmd'
85 | #define __pmd(x) ((pmd_t) { (x) } )
| ^
cc1: some warnings being treated as errors
vim +34 include/asm-generic/memory_model.h
8f6aac419bd590 Christoph Lameter 2007-10-16 27
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 28 #elif defined(CONFIG_SPARSEMEM)
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 29 /*
1a49123b343461 Zhang Yanfei 2013-10-03 30 * Note: section's mem_map is encoded to reflect its start_pfn.
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 31 * section[i].section_mem_map == mem_map's address - start_pfn;
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 32 */
67de648211fa04 Andy Whitcroft 2006-06-23 33 #define __page_to_pfn(pg) \
aa462abe8aaf21 Ian Campbell 2011-08-17 @34 ({ const struct page *__pg = (pg); \
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 35 int __sec = page_to_section(__pg); \
f05b6284ee5d3b Randy Dunlap 2007-02-10 36 (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); \
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 37 })
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27 38
:::::: The code at line 34 was first introduced by commit
:::::: aa462abe8aaf2198d6aef97da20c874ac694a39f mm: fix __page_to_pfn for a const struct page argument
:::::: TO: Ian Campbell <ian.campbell@xxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
---
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