Received-SPF: pass (google.com: domain of linux-kernel+bounces-65175-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3;
Date: Wed, 14 Feb 2024 20:09:22 +0800
From: kernel test robot <lkp@intel.com>
To: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
	Palmer Dabbelt <palmer@rivosinc.com>
Subject: include/linux/hugetlb.h:916:20: error: static declaration of
 'arch_hugetlb_migration_supported' follows non-static declaration
Message-ID: <202402142035.Aq7hibAu-lkp@intel.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

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@intel.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@arm.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki