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SubjectRe: [PATCH 1/3] x86/mm: Provide pmdp_mknotpresent() helper
Hi Kirill,

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.12-rc5 next-20170614]
[cannot apply to tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Kirill-A-Shutemov/Do-not-loose-dirty-bit-on-THP-pages/20170615-115540
base: git://git.cmpxchg.org/linux-mmotm.git master
config: i386-randconfig-x071-06130444 (attached as .config)
compiler: gcc-6 (Debian 6.3.0-18) 6.3.0 20170516
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All error/warnings (new ones prefixed by >>):

In file included from include/linux/mm.h:70:0,
from include/linux/memcontrol.h:29,
from include/linux/swap.h:8,
from include/linux/suspend.h:4,
from arch/x86/kernel/asm-offsets.c:12:
>> arch/x86/include/asm/pgtable.h:1096:27: error: redefinition of 'pmdp_mknotpresent'
#define pmdp_mknotpresent pmdp_mknotpresent
^
>> arch/x86/include/asm/pgtable.h:1097:20: note: in expansion of macro 'pmdp_mknotpresent'
static inline void pmdp_mknotpresent(pmd_t *pmdp)
^~~~~~~~~~~~~~~~~
In file included from arch/x86/include/asm/pgtable_32.h:43:0,
from arch/x86/include/asm/pgtable.h:604,
from include/linux/mm.h:70,
from include/linux/memcontrol.h:29,
from include/linux/swap.h:8,
from include/linux/suspend.h:4,
from arch/x86/kernel/asm-offsets.c:12:
arch/x86/include/asm/pgtable-3level.h:194:20: note: previous definition of 'pmdp_mknotpresent' was here
static inline void pmdp_mknotpresent(pmd_t *pmdp)
^~~~~~~~~~~~~~~~~
make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [sub-make] Error 2

vim +/pmdp_mknotpresent +1096 arch/x86/include/asm/pgtable.h

1090 unsigned long addr, pmd_t *pmdp)
1091 {
1092 clear_bit(_PAGE_BIT_RW, (unsigned long *)pmdp);
1093 }
1094
1095 #ifndef pmdp_mknotpresent
> 1096 #define pmdp_mknotpresent pmdp_mknotpresent
> 1097 static inline void pmdp_mknotpresent(pmd_t *pmdp)
1098 {
1099 pmd_t old, new;
1100

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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