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Date: Wed, 24 Aug 2022 11:07:33 +0800
From: kernel test robot <lkp@...el.com>
To: Huacai Chen <chenhuacai@...ngson.cn>,
Arnd Bergmann <arnd@...db.de>,
Huacai Chen <chenhuacai@...nel.org>
Cc: kbuild-all@...ts.01.org, loongarch@...ts.linux.dev,
linux-arch@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>,
Guo Ren <guoren@...nel.org>, Xuerui Wang <kernel@...0n.name>,
Jiaxun Yang <jiaxun.yang@...goat.com>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] LoongArch: Use TLB for ioremap()
Hi Huacai,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.0-rc2 next-20220823]
[cannot apply to soc/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Huacai-Chen/LoongArch-Use-TLB-for-ioremap/20220823-110829
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 072e51356cd5a4a1c12c1020bc054c99b98333df
config: loongarch-randconfig-r006-20220823 (https://download.01.org/0day-ci/archive/20220824/202208241152.Bp1fUWJ1-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 12.1.0
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://github.com/intel-lab-lkp/linux/commit/80f55a8feb23743d963d113c803bf54b1287244d
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Huacai-Chen/LoongArch-Use-TLB-for-ioremap/20220823-110829
git checkout 80f55a8feb23743d963d113c803bf54b1287244d
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
1348 | static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd)
| ^~~~~
| pud_t
include/linux/pgtable.h:1405:38: error: unknown type name 'pmd_t'; did you mean 'pud_t'?
1405 | static inline int pmd_trans_unstable(pmd_t *pmd)
| ^~~~~
| pud_t
include/linux/pgtable.h:1420:45: error: unknown type name 'pmd_t'; did you mean 'pud_t'?
1420 | static inline int pmd_devmap_trans_unstable(pmd_t *pmd)
| ^~~~~
| pud_t
include/linux/pgtable.h:1439:32: error: unknown type name 'pmd_t'; did you mean 'pud_t'?
1439 | static inline int pmd_protnone(pmd_t pmd)
| ^~~~~
| pud_t
include/linux/pgtable.h:1476:32: error: unknown type name 'pmd_t'; did you mean 'pud_t'?
1476 | static inline int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot)
| ^~~~~
| pud_t
include/linux/pgtable.h:1485:34: error: unknown type name 'pmd_t'; did you mean 'pud_t'?
1485 | static inline int pmd_clear_huge(pmd_t *pmd)
| ^~~~~
| pud_t
include/linux/pgtable.h:1497:37: error: unknown type name 'pmd_t'; did you mean 'pud_t'?
1497 | static inline int pmd_free_pte_page(pmd_t *pmd, unsigned long addr)
| ^~~~~
| pud_t
arch/loongarch/include/asm/pgtable.h:164:19: error: static declaration of 'pud_none' follows non-static declaration
164 | static inline int pud_none(pud_t pud)
| ^~~~~~~~
include/linux/pgtable.h:864:13: note: previous implicit declaration of 'pud_none' with type 'int()'
864 | if (pud_none(*pud))
| ^~~~~~~~
arch/loongarch/include/asm/pgtable.h:169:19: error: static declaration of 'pud_bad' follows non-static declaration
169 | static inline int pud_bad(pud_t pud)
| ^~~~~~~
include/linux/pgtable.h:866:22: note: previous implicit declaration of 'pud_bad' with type 'int()'
866 | if (unlikely(pud_bad(*pud))) {
| ^~~~~~~
include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
arch/loongarch/include/asm/pgtable.h:184:22: error: conflicting types for 'pud_pgtable'; have 'pmd_t *(pud_t)'
184 | static inline pmd_t *pud_pgtable(pud_t pud)
| ^~~~~~~~~~~
include/linux/pgtable.h:111:16: note: previous implicit declaration of 'pud_pgtable' with type 'int()'
111 | return pud_pgtable(*pud) + pmd_index(address);
| ^~~~~~~~~~~
arch/loongarch/include/asm/pgtable.h:199:19: error: static declaration of 'pmd_none' follows non-static declaration
199 | static inline int pmd_none(pmd_t pmd)
| ^~~~~~~~
include/linux/pgtable.h:165:16: note: previous implicit declaration of 'pmd_none' with type 'int()'
165 | return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr);
| ^~~~~~~~
arch/loongarch/include/asm/pgtable.h:303:20: warning: conflicting types for 'set_pte_at'; have 'void(struct mm_struct *, long unsigned int, pte_t *, pte_t)'
303 | static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
| ^~~~~~~~~~
arch/loongarch/include/asm/pgtable.h:303:20: error: static declaration of 'set_pte_at' follows non-static declaration
include/linux/pgtable.h:210:17: note: previous implicit declaration of 'set_pte_at' with type 'void(struct mm_struct *, long unsigned int, pte_t *, pte_t)'
210 | set_pte_at(vma->vm_mm, address, ptep, pte_mkold(pte));
| ^~~~~~~~~~
arch/loongarch/include/asm/pgtable.h:309:20: warning: conflicting types for 'pte_clear'; have 'void(struct mm_struct *, long unsigned int, pte_t *)'
309 | static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
| ^~~~~~~~~
arch/loongarch/include/asm/pgtable.h:309:20: error: static declaration of 'pte_clear' follows non-static declaration
include/linux/pgtable.h:269:9: note: previous implicit declaration of 'pte_clear' with type 'void(struct mm_struct *, long unsigned int, pte_t *)'
269 | pte_clear(mm, address, ptep);
| ^~~~~~~~~
arch/loongarch/include/asm/pgtable.h:330:19: error: static declaration of 'pte_young' follows non-static declaration
330 | static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
| ^~~~~~~~~
include/linux/pgtable.h:207:14: note: previous implicit declaration of 'pte_young' with type 'int()'
207 | if (!pte_young(pte))
| ^~~~~~~~~
arch/loongarch/include/asm/pgtable.h:333:21: error: conflicting types for 'pte_mkold'; have 'pte_t(pte_t)'
333 | static inline pte_t pte_mkold(pte_t pte)
| ^~~~~~~~~
include/linux/pgtable.h:210:55: note: previous implicit declaration of 'pte_mkold' with type 'int()'
210 | set_pte_at(vma->vm_mm, address, ptep, pte_mkold(pte));
| ^~~~~~~~~
arch/loongarch/include/asm/pgtable.h:363:21: error: conflicting types for 'pte_wrprotect'; have 'pte_t(pte_t)'
363 | static inline pte_t pte_wrprotect(pte_t pte)
| ^~~~~~~~~~~~~
include/linux/pgtable.h:455:39: note: previous implicit declaration of 'pte_wrprotect' with type 'int()'
455 | set_pte_at(mm, address, ptep, pte_wrprotect(old_pte));
| ^~~~~~~~~~~~~
arch/loongarch/include/asm/pgtable.h:382: warning: "pte_accessible" redefined
382 | #define pte_accessible pte_accessible
|
include/linux/pgtable.h:780: note: this is the location of the previous definition
780 | # define pte_accessible(mm, pte) ((void)(pte), 1)
|
In file included from include/linux/dax.h:6:
include/linux/mm.h: In function 'pmd_alloc':
include/linux/mm.h:2205:21: error: returning 'int *' from a function with incompatible return type 'pmd_t *' [-Werror=incompatible-pointer-types]
2204 | return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2205 | NULL: pmd_offset(pud, address);
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
mm/filemap.c: In function 'filemap_map_pmd':
>> mm/filemap.c:3237:13: error: implicit declaration of function 'pmd_trans_huge'; did you mean 'pud_trans_huge'? [-Werror=implicit-function-declaration]
3237 | if (pmd_trans_huge(*vmf->pmd)) {
| ^~~~~~~~~~~~~~
| pud_trans_huge
mm/filemap.c:3256:13: error: implicit declaration of function 'pmd_devmap_trans_unstable'; did you mean 'pud_trans_unstable'? [-Werror=implicit-function-declaration]
3256 | if (pmd_devmap_trans_unstable(vmf->pmd)) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~
| pud_trans_unstable
mm/filemap.c: In function 'filemap_map_pages':
include/linux/pgtable.h:94:27: warning: initialization of 'pte_t *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
94 | #define pte_offset_kernel pte_offset_kernel
| ^~~~~~~~~~~~~~~~~
include/linux/pgtable.h:103:41: note: in expansion of macro 'pte_offset_kernel'
103 | #define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
| ^~~~~~~~~~~~~~~~~
include/linux/mm.h:2298:24: note: in expansion of macro 'pte_offset_map'
2298 | pte_t *__pte = pte_offset_map(pmd, address); \
| ^~~~~~~~~~~~~~
mm/filemap.c:3347:20: note: in expansion of macro 'pte_offset_map_lock'
3347 | vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, addr, &vmf->ptl);
| ^~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +3237 mm/filemap.c
54cb8821de07f2 Nicholas Piggin 2007-07-19 3231
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3232 static bool filemap_map_pmd(struct vm_fault *vmf, struct page *page)
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3233 {
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3234 struct mm_struct *mm = vmf->vma->vm_mm;
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3235
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3236 /* Huge page is mapped? No need to proceed. */
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 @3237 if (pmd_trans_huge(*vmf->pmd)) {
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3238 unlock_page(page);
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3239 put_page(page);
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3240 return true;
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3241 }
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3242
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3243 if (pmd_none(*vmf->pmd) && PageTransHuge(page)) {
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3244 vm_fault_t ret = do_set_pmd(vmf, page);
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3245 if (!ret) {
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3246 /* The page is mapped successfully, reference consumed. */
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3247 unlock_page(page);
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3248 return true;
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3249 }
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3250 }
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3251
03c4f20454e023 Qi Zheng 2021-11-05 3252 if (pmd_none(*vmf->pmd))
03c4f20454e023 Qi Zheng 2021-11-05 3253 pmd_install(mm, vmf->pmd, &vmf->prealloc_pte);
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3254
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3255 /* See comment in handle_pte_fault() */
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3256 if (pmd_devmap_trans_unstable(vmf->pmd)) {
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3257 unlock_page(page);
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3258 put_page(page);
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3259 return true;
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3260 }
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3261
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3262 return false;
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3263 }
f9ce0be71d1fbb Kirill A. Shutemov 2020-12-19 3264
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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