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Date: Fri, 27 May 2022 22:03:19 +0800
From: kernel test robot <lkp@...el.com>
To: Tong Tiangen <tongtiangen@...wei.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
Pasha Tatashin <pasha.tatashin@...een.com>
Subject: mm/page_table_check.c:162:36: error: call to undeclared function
'pmd_pfn'; ISO C99 and later do not support implicit function declarations
Hi Tong,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7e284070abe53d448517b80493863595af4ab5f0
commit: 3fee229a8eb936b96933c6b2cd02d2e87a4cc997 riscv/mm: enable ARCH_SUPPORTS_PAGE_TABLE_CHECK
date: 2 weeks ago
config: riscv-buildonly-randconfig-r002-20220527 (https://download.01.org/0day-ci/archive/20220527/202205272115.jTU9BRH9-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 134d7f9a4b97e9035150d970bd9e376043c4577e)
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
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3fee229a8eb936b96933c6b2cd02d2e87a4cc997
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 3fee229a8eb936b96933c6b2cd02d2e87a4cc997
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All error/warnings (new ones prefixed by >>):
mm/page_table_check.c:148:6: error: call to undeclared function 'pte_user_accessible_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (pte_user_accessible_page(pte)) {
^
>> mm/page_table_check.c:149:36: error: call to undeclared function 'pte_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
page_table_check_clear(mm, addr, pte_pfn(pte),
^
mm/page_table_check.c:161:6: error: call to undeclared function 'pmd_user_accessible_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (pmd_user_accessible_page(pmd)) {
^
>> mm/page_table_check.c:162:36: error: call to undeclared function 'pmd_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
page_table_check_clear(mm, addr, pmd_pfn(pmd),
^
mm/page_table_check.c:162:36: note: did you mean '_pmd_pfn'?
arch/riscv/include/asm/pgtable-64.h:144:29: note: '_pmd_pfn' declared here
static inline unsigned long _pmd_pfn(pmd_t pmd)
^
mm/page_table_check.c:174:6: error: call to undeclared function 'pud_user_accessible_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (pud_user_accessible_page(pud)) {
^
>> mm/page_table_check.c:175:36: error: call to undeclared function 'pud_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
page_table_check_clear(mm, addr, pud_pfn(pud),
^
mm/page_table_check.c:175:36: note: did you mean '_pud_pfn'?
arch/riscv/include/asm/pgtable-64.h:104:29: note: '_pud_pfn' declared here
static inline unsigned long _pud_pfn(pud_t pud)
^
mm/page_table_check.c:188:6: error: call to undeclared function 'pte_user_accessible_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (pte_user_accessible_page(pte)) {
^
mm/page_table_check.c:189:34: error: call to undeclared function 'pte_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
page_table_check_set(mm, addr, pte_pfn(pte),
^
>> mm/page_table_check.c:191:10: error: call to undeclared function 'pte_write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
pte_write(pte));
^
mm/page_table_check.c:203:6: error: call to undeclared function 'pmd_user_accessible_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (pmd_user_accessible_page(pmd)) {
^
mm/page_table_check.c:204:34: error: call to undeclared function 'pmd_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
page_table_check_set(mm, addr, pmd_pfn(pmd),
^
>> mm/page_table_check.c:206:10: error: call to undeclared function 'pmd_write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
pmd_write(pmd));
^
mm/page_table_check.c:218:6: error: call to undeclared function 'pud_user_accessible_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (pud_user_accessible_page(pud)) {
^
mm/page_table_check.c:219:34: error: call to undeclared function 'pud_pfn'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
page_table_check_set(mm, addr, pud_pfn(pud),
^
>> mm/page_table_check.c:221:10: error: call to undeclared function 'pud_write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
pud_write(pud));
^
mm/page_table_check.c:221:10: note: did you mean 'up_write'?
include/linux/rwsem.h:202:13: note: 'up_write' declared here
extern void up_write(struct rw_semaphore *sem);
^
>> mm/page_table_check.c:233:7: error: call to undeclared function 'pmd_bad'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (!pmd_bad(pmd) && !pmd_leaf(pmd)) {
^
>> mm/page_table_check.c:234:17: error: call to undeclared function 'pte_offset_map'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
pte_t *ptep = pte_offset_map(&pmd, addr);
^
>> mm/page_table_check.c:234:10: warning: incompatible integer to pointer conversion initializing 'pte_t *' with an expression of type 'int' [-Wint-conversion]
pte_t *ptep = pte_offset_map(&pmd, addr);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~
>> mm/page_table_check.c:237:3: error: call to undeclared function 'pte_unmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
pte_unmap(ptep);
^
mm/page_table_check.c:237:3: note: did you mean 'pte_devmap'?
include/linux/mm.h:2113:19: note: 'pte_devmap' declared here
static inline int pte_devmap(pte_t pte)
^
>> mm/page_table_check.c:238:19: error: use of undeclared identifier 'PTRS_PER_PTE'
for (i = 0; i < PTRS_PER_PTE; i++) {
^
1 warning and 19 errors generated.
vim +/pmd_pfn +162 mm/page_table_check.c
df4e817b710809 Pasha Tatashin 2022-01-14 141
df4e817b710809 Pasha Tatashin 2022-01-14 142 void __page_table_check_pte_clear(struct mm_struct *mm, unsigned long addr,
df4e817b710809 Pasha Tatashin 2022-01-14 143 pte_t pte)
df4e817b710809 Pasha Tatashin 2022-01-14 144 {
df4e817b710809 Pasha Tatashin 2022-01-14 145 if (&init_mm == mm)
df4e817b710809 Pasha Tatashin 2022-01-14 146 return;
df4e817b710809 Pasha Tatashin 2022-01-14 147
df4e817b710809 Pasha Tatashin 2022-01-14 148 if (pte_user_accessible_page(pte)) {
df4e817b710809 Pasha Tatashin 2022-01-14 @149 page_table_check_clear(mm, addr, pte_pfn(pte),
df4e817b710809 Pasha Tatashin 2022-01-14 150 PAGE_SIZE >> PAGE_SHIFT);
df4e817b710809 Pasha Tatashin 2022-01-14 151 }
df4e817b710809 Pasha Tatashin 2022-01-14 152 }
df4e817b710809 Pasha Tatashin 2022-01-14 153 EXPORT_SYMBOL(__page_table_check_pte_clear);
df4e817b710809 Pasha Tatashin 2022-01-14 154
df4e817b710809 Pasha Tatashin 2022-01-14 155 void __page_table_check_pmd_clear(struct mm_struct *mm, unsigned long addr,
df4e817b710809 Pasha Tatashin 2022-01-14 156 pmd_t pmd)
df4e817b710809 Pasha Tatashin 2022-01-14 157 {
df4e817b710809 Pasha Tatashin 2022-01-14 158 if (&init_mm == mm)
df4e817b710809 Pasha Tatashin 2022-01-14 159 return;
df4e817b710809 Pasha Tatashin 2022-01-14 160
df4e817b710809 Pasha Tatashin 2022-01-14 161 if (pmd_user_accessible_page(pmd)) {
df4e817b710809 Pasha Tatashin 2022-01-14 @162 page_table_check_clear(mm, addr, pmd_pfn(pmd),
92fb05242a1b1e Tong Tiangen 2022-05-12 163 PMD_SIZE >> PAGE_SHIFT);
df4e817b710809 Pasha Tatashin 2022-01-14 164 }
df4e817b710809 Pasha Tatashin 2022-01-14 165 }
df4e817b710809 Pasha Tatashin 2022-01-14 166 EXPORT_SYMBOL(__page_table_check_pmd_clear);
df4e817b710809 Pasha Tatashin 2022-01-14 167
df4e817b710809 Pasha Tatashin 2022-01-14 168 void __page_table_check_pud_clear(struct mm_struct *mm, unsigned long addr,
df4e817b710809 Pasha Tatashin 2022-01-14 169 pud_t pud)
df4e817b710809 Pasha Tatashin 2022-01-14 170 {
df4e817b710809 Pasha Tatashin 2022-01-14 171 if (&init_mm == mm)
df4e817b710809 Pasha Tatashin 2022-01-14 172 return;
df4e817b710809 Pasha Tatashin 2022-01-14 173
df4e817b710809 Pasha Tatashin 2022-01-14 174 if (pud_user_accessible_page(pud)) {
df4e817b710809 Pasha Tatashin 2022-01-14 @175 page_table_check_clear(mm, addr, pud_pfn(pud),
92fb05242a1b1e Tong Tiangen 2022-05-12 176 PUD_SIZE >> PAGE_SHIFT);
df4e817b710809 Pasha Tatashin 2022-01-14 177 }
df4e817b710809 Pasha Tatashin 2022-01-14 178 }
df4e817b710809 Pasha Tatashin 2022-01-14 179 EXPORT_SYMBOL(__page_table_check_pud_clear);
df4e817b710809 Pasha Tatashin 2022-01-14 180
df4e817b710809 Pasha Tatashin 2022-01-14 181 void __page_table_check_pte_set(struct mm_struct *mm, unsigned long addr,
df4e817b710809 Pasha Tatashin 2022-01-14 182 pte_t *ptep, pte_t pte)
df4e817b710809 Pasha Tatashin 2022-01-14 183 {
df4e817b710809 Pasha Tatashin 2022-01-14 184 if (&init_mm == mm)
df4e817b710809 Pasha Tatashin 2022-01-14 185 return;
df4e817b710809 Pasha Tatashin 2022-01-14 186
64d8b9e14512ce Pasha Tatashin 2022-02-03 187 __page_table_check_pte_clear(mm, addr, *ptep);
df4e817b710809 Pasha Tatashin 2022-01-14 188 if (pte_user_accessible_page(pte)) {
df4e817b710809 Pasha Tatashin 2022-01-14 189 page_table_check_set(mm, addr, pte_pfn(pte),
df4e817b710809 Pasha Tatashin 2022-01-14 190 PAGE_SIZE >> PAGE_SHIFT,
df4e817b710809 Pasha Tatashin 2022-01-14 @191 pte_write(pte));
df4e817b710809 Pasha Tatashin 2022-01-14 192 }
df4e817b710809 Pasha Tatashin 2022-01-14 193 }
df4e817b710809 Pasha Tatashin 2022-01-14 194 EXPORT_SYMBOL(__page_table_check_pte_set);
df4e817b710809 Pasha Tatashin 2022-01-14 195
df4e817b710809 Pasha Tatashin 2022-01-14 196 void __page_table_check_pmd_set(struct mm_struct *mm, unsigned long addr,
df4e817b710809 Pasha Tatashin 2022-01-14 197 pmd_t *pmdp, pmd_t pmd)
df4e817b710809 Pasha Tatashin 2022-01-14 198 {
df4e817b710809 Pasha Tatashin 2022-01-14 199 if (&init_mm == mm)
df4e817b710809 Pasha Tatashin 2022-01-14 200 return;
df4e817b710809 Pasha Tatashin 2022-01-14 201
64d8b9e14512ce Pasha Tatashin 2022-02-03 202 __page_table_check_pmd_clear(mm, addr, *pmdp);
df4e817b710809 Pasha Tatashin 2022-01-14 203 if (pmd_user_accessible_page(pmd)) {
df4e817b710809 Pasha Tatashin 2022-01-14 204 page_table_check_set(mm, addr, pmd_pfn(pmd),
92fb05242a1b1e Tong Tiangen 2022-05-12 205 PMD_SIZE >> PAGE_SHIFT,
df4e817b710809 Pasha Tatashin 2022-01-14 @206 pmd_write(pmd));
df4e817b710809 Pasha Tatashin 2022-01-14 207 }
df4e817b710809 Pasha Tatashin 2022-01-14 208 }
df4e817b710809 Pasha Tatashin 2022-01-14 209 EXPORT_SYMBOL(__page_table_check_pmd_set);
df4e817b710809 Pasha Tatashin 2022-01-14 210
df4e817b710809 Pasha Tatashin 2022-01-14 211 void __page_table_check_pud_set(struct mm_struct *mm, unsigned long addr,
df4e817b710809 Pasha Tatashin 2022-01-14 212 pud_t *pudp, pud_t pud)
df4e817b710809 Pasha Tatashin 2022-01-14 213 {
df4e817b710809 Pasha Tatashin 2022-01-14 214 if (&init_mm == mm)
df4e817b710809 Pasha Tatashin 2022-01-14 215 return;
df4e817b710809 Pasha Tatashin 2022-01-14 216
64d8b9e14512ce Pasha Tatashin 2022-02-03 217 __page_table_check_pud_clear(mm, addr, *pudp);
df4e817b710809 Pasha Tatashin 2022-01-14 218 if (pud_user_accessible_page(pud)) {
df4e817b710809 Pasha Tatashin 2022-01-14 219 page_table_check_set(mm, addr, pud_pfn(pud),
92fb05242a1b1e Tong Tiangen 2022-05-12 220 PUD_SIZE >> PAGE_SHIFT,
df4e817b710809 Pasha Tatashin 2022-01-14 @221 pud_write(pud));
df4e817b710809 Pasha Tatashin 2022-01-14 222 }
df4e817b710809 Pasha Tatashin 2022-01-14 223 }
df4e817b710809 Pasha Tatashin 2022-01-14 224 EXPORT_SYMBOL(__page_table_check_pud_set);
80110bbfbba6f0 Pasha Tatashin 2022-02-03 225
80110bbfbba6f0 Pasha Tatashin 2022-02-03 226 void __page_table_check_pte_clear_range(struct mm_struct *mm,
80110bbfbba6f0 Pasha Tatashin 2022-02-03 227 unsigned long addr,
80110bbfbba6f0 Pasha Tatashin 2022-02-03 228 pmd_t pmd)
80110bbfbba6f0 Pasha Tatashin 2022-02-03 229 {
80110bbfbba6f0 Pasha Tatashin 2022-02-03 230 if (&init_mm == mm)
80110bbfbba6f0 Pasha Tatashin 2022-02-03 231 return;
80110bbfbba6f0 Pasha Tatashin 2022-02-03 232
80110bbfbba6f0 Pasha Tatashin 2022-02-03 @233 if (!pmd_bad(pmd) && !pmd_leaf(pmd)) {
80110bbfbba6f0 Pasha Tatashin 2022-02-03 @234 pte_t *ptep = pte_offset_map(&pmd, addr);
80110bbfbba6f0 Pasha Tatashin 2022-02-03 235 unsigned long i;
80110bbfbba6f0 Pasha Tatashin 2022-02-03 236
80110bbfbba6f0 Pasha Tatashin 2022-02-03 @237 pte_unmap(ptep);
80110bbfbba6f0 Pasha Tatashin 2022-02-03 @238 for (i = 0; i < PTRS_PER_PTE; i++) {
:::::: The code at line 162 was first introduced by commit
:::::: df4e817b710809425d899340dbfa8504a3ca4ba5 mm: page table check
:::::: TO: Pasha Tatashin <pasha.tatashin@...een.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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