Re: [PATCH 2/2] sparc64: Fix pagetable freeing for hugepage regions

From: kbuild test robot
Date: Wed Jun 22 2016 - 22:34:30 EST


Hi,

[auto build test ERROR on sparc/master]
[also build test ERROR on v4.7-rc4 next-20160622]
[cannot apply to sparc-next/master]
[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/Nitin-Gupta/sparc64-Trim-page-tables-for-8M-hugepages/20160623-092926
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc.git master
config: i386-defconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

In file included from include/linux/hugetlb.h:420:0,
from kernel/fork.c:38:
>> arch/x86/include/asm/hugetlb.h:30:20: error: static declaration of 'hugetlb_free_pgd_range' follows non-static declaration
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
^~~~~~~~~~~~~~~~~~~~~~
In file included from kernel/fork.c:38:0:
include/linux/hugetlb.h:123:6: note: previous declaration of 'hugetlb_free_pgd_range' was here
void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
^~~~~~~~~~~~~~~~~~~~~~

vim +/hugetlb_free_pgd_range +30 arch/x86/include/asm/hugetlb.h

6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 24 return -EINVAL;
a5516438 include/asm-x86/hugetlb.h Andi Kleen 2008-07-23 25 if (addr & ~huge_page_mask(h))
6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 26 return -EINVAL;
6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 27 return 0;
6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 28 }
6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 29
42b77728 include/asm-x86/hugetlb.h Jan Beulich 2008-07-23 @30 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 31 unsigned long addr, unsigned long end,
6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 32 unsigned long floor,
6d779079 include/asm-x86/hugetlb.h Gerald Schaefer 2008-04-28 33 unsigned long ceiling)

:::::: The code at line 30 was first introduced by commit
:::::: 42b7772812d15b86543a23b82bd6070eef9a08b1 mm: remove double indirection on tlb parameter to free_pgd_range() & Co

:::::: TO: Jan Beulich <jbeulich@xxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

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