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Date: Wed, 14 Feb 2024 20:09:22 +0800
From: kernel test robot <lkp@...el.com>
To: Alexandre Ghiti <alexghiti@...osinc.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Palmer Dabbelt <palmer@...osinc.com>
Subject: include/linux/hugetlb.h:916:20: error: static declaration of
'arch_hugetlb_migration_supported' follows non-static declaration
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7e90b5c295ec1e47c8ad865429f046970c549a66
commit: ce68c035457bdd025a9961e0ba2157323090c581 riscv: Fix arch_hugetlb_migration_supported() for NAPOT
date: 7 days ago
config: riscv-randconfig-r064-20240214 (https://download.01.org/0day-ci/archive/20240214/202402142035.Aq7hibAu-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project c08b90c50bcac9f3f563c79491c8dbcbe7c3b574)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240214/202402142035.Aq7hibAu-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402142035.Aq7hibAu-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from kernel/fork.c:52:
>> include/linux/hugetlb.h:916:20: error: static declaration of 'arch_hugetlb_migration_supported' follows non-static declaration
916 | static inline bool arch_hugetlb_migration_supported(struct hstate *h)
| ^
arch/riscv/include/asm/hugetlb.h:15:42: note: expanded from macro 'arch_hugetlb_migration_supported'
15 | #define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
| ^
arch/riscv/include/asm/hugetlb.h:14:6: note: previous declaration is here
14 | bool arch_hugetlb_migration_supported(struct hstate *h);
| ^
1 error generated.
--
In file included from kernel/sysctl.c:45:
>> include/linux/hugetlb.h:916:20: error: static declaration of 'arch_hugetlb_migration_supported' follows non-static declaration
916 | static inline bool arch_hugetlb_migration_supported(struct hstate *h)
| ^
arch/riscv/include/asm/hugetlb.h:15:42: note: expanded from macro 'arch_hugetlb_migration_supported'
15 | #define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
| ^
arch/riscv/include/asm/hugetlb.h:14:6: note: previous declaration is here
14 | bool arch_hugetlb_migration_supported(struct hstate *h);
| ^
In file included from kernel/sysctl.c:53:
In file included from include/linux/nfs_fs.h:31:
In file included from include/linux/sunrpc/auth.h:13:
In file included from include/linux/sunrpc/sched.h:19:
include/linux/sunrpc/xdr.h:782:46: warning: result of comparison of constant 4611686018427387903 with expression of type '__u32' (aka 'unsigned int') is always false [-Wtautological-constant-out-of-range-compare]
782 | if (U32_MAX >= SIZE_MAX / sizeof(*p) && len > SIZE_MAX / sizeof(*p))
| ~~~ ^ ~~~~~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
--
In file included from kernel/events/core.c:31:
>> include/linux/hugetlb.h:916:20: error: static declaration of 'arch_hugetlb_migration_supported' follows non-static declaration
916 | static inline bool arch_hugetlb_migration_supported(struct hstate *h)
| ^
arch/riscv/include/asm/hugetlb.h:15:42: note: expanded from macro 'arch_hugetlb_migration_supported'
15 | #define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
| ^
arch/riscv/include/asm/hugetlb.h:14:6: note: previous declaration is here
14 | bool arch_hugetlb_migration_supported(struct hstate *h);
| ^
In file included from kernel/events/core.c:43:
include/linux/mman.h:158:9: warning: division by zero is undefined [-Wdivision-by-zero]
158 | _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) |
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans'
136 | : ((x) & (bit1)) / ((bit1) / (bit2))))
| ^ ~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
vim +/arch_hugetlb_migration_supported +916 include/linux/hugetlb.h
161df60e9e8965 Naoya Horiguchi 2022-07-14 902
c177c81e09e517 Naoya Horiguchi 2014-06-04 903 #ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
e693de186414ae Anshuman Khandual 2019-03-05 904 #ifndef arch_hugetlb_migration_supported
e693de186414ae Anshuman Khandual 2019-03-05 905 static inline bool arch_hugetlb_migration_supported(struct hstate *h)
e693de186414ae Anshuman Khandual 2019-03-05 906 {
94310cbcaa3c2b Anshuman Khandual 2017-07-06 907 if ((huge_page_shift(h) == PMD_SHIFT) ||
9b553bf5eb99dd Anshuman Khandual 2019-03-05 908 (huge_page_shift(h) == PUD_SHIFT) ||
94310cbcaa3c2b Anshuman Khandual 2017-07-06 909 (huge_page_shift(h) == PGDIR_SHIFT))
94310cbcaa3c2b Anshuman Khandual 2017-07-06 910 return true;
94310cbcaa3c2b Anshuman Khandual 2017-07-06 911 else
94310cbcaa3c2b Anshuman Khandual 2017-07-06 912 return false;
e693de186414ae Anshuman Khandual 2019-03-05 913 }
e693de186414ae Anshuman Khandual 2019-03-05 914 #endif
c177c81e09e517 Naoya Horiguchi 2014-06-04 915 #else
e693de186414ae Anshuman Khandual 2019-03-05 @916 static inline bool arch_hugetlb_migration_supported(struct hstate *h)
e693de186414ae Anshuman Khandual 2019-03-05 917 {
d70c17d436b3fb Chen Gang 2016-05-20 918 return false;
e693de186414ae Anshuman Khandual 2019-03-05 919 }
c177c81e09e517 Naoya Horiguchi 2014-06-04 920 #endif
e693de186414ae Anshuman Khandual 2019-03-05 921
:::::: The code at line 916 was first introduced by commit
:::::: e693de186414ae66f2a316ff9befcd2b7a6d07b6 mm/hugetlb: enable arch specific huge page size support for migration
:::::: TO: Anshuman Khandual <anshuman.khandual@....com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
--
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