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SubjectRe: [PATCH v3 02/11] hugetlb: Introduce generic version of hugetlb_free_pgd_range
Hi Alexandre,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc3 next-20180704]
[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/Alexandre-Ghiti/hugetlb-Factorize-hugetlb-architecture-primitives/20180705-135909
config: powerpc-mpc8540_ads_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=powerpc

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

In file included from arch/powerpc/kernel/setup-common.c:37:0:
>> include/linux/hugetlb.h:191:65: error: expected identifier or '(' before '{' token
#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })
^
>> include/asm-generic/hugetlb.h:44:20: note: in expansion of macro 'hugetlb_free_pgd_range'
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
^~~~~~~~~~~~~~~~~~~~~~

vim +191 include/linux/hugetlb.h

^1da177e Linus Torvalds 2005-04-16 172
87ffc118 Andrea Arcangeli 2017-02-22 173 #define follow_hugetlb_page(m,v,p,vs,a,b,i,w,n) ({ BUG(); 0; })
^1da177e Linus Torvalds 2005-04-16 174 #define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL)
^1da177e Linus Torvalds 2005-04-16 175 #define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; })
e1759c21 Alexey Dobriyan 2008-10-15 176 static inline void hugetlb_report_meminfo(struct seq_file *m)
e1759c21 Alexey Dobriyan 2008-10-15 177 {
e1759c21 Alexey Dobriyan 2008-10-15 178 }
^1da177e Linus Torvalds 2005-04-16 179 #define hugetlb_report_node_meminfo(n, buf) 0
949f7ec5 David Rientjes 2013-04-29 180 static inline void hugetlb_show_meminfo(void)
949f7ec5 David Rientjes 2013-04-29 181 {
949f7ec5 David Rientjes 2013-04-29 182 }
4dc71451 Aneesh Kumar K.V 2017-07-06 183 #define follow_huge_pd(vma, addr, hpd, flags, pdshift) NULL
e66f17ff Naoya Horiguchi 2015-02-11 184 #define follow_huge_pmd(mm, addr, pmd, flags) NULL
e66f17ff Naoya Horiguchi 2015-02-11 185 #define follow_huge_pud(mm, addr, pud, flags) NULL
faaa5b62 Anshuman Khandual 2017-07-06 186 #define follow_huge_pgd(mm, addr, pgd, flags) NULL
a5516438 Andi Kleen 2008-07-23 187 #define prepare_hugepage_range(file, addr, len) (-EINVAL)
^1da177e Linus Torvalds 2005-04-16 188 #define pmd_huge(x) 0
ceb86879 Andi Kleen 2008-07-23 189 #define pud_huge(x) 0
^1da177e Linus Torvalds 2005-04-16 190 #define is_hugepage_only_range(mm, addr, len) 0
9da61aef David Gibson 2006-03-22 @191 #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })
788c7df4 Hugh Dickins 2009-06-23 192 #define hugetlb_fault(mm, vma, addr, flags) ({ BUG(); 0; })
8fb5debc Mike Kravetz 2017-02-22 193 #define hugetlb_mcopy_atomic_pte(dst_mm, dst_pte, dst_vma, dst_addr, \
8fb5debc Mike Kravetz 2017-02-22 194 src_addr, pagep) ({ BUG(); 0; })
7868a208 Punit Agrawal 2017-07-06 195 #define huge_pte_offset(mm, address, sz) 0
24669e58 Aneesh Kumar K.V 2012-07-31 196

:::::: The code at line 191 was first introduced by commit
:::::: 9da61aef0fd5b17dd4bf4baf33db12c470def774 [PATCH] hugepage: Fix hugepage logic in free_pgtables()

:::::: TO: David Gibson <david@gibson.dropbear.id.au>
:::::: CC: Linus Torvalds <torvalds@g5.osdl.org>

---
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https://lists.01.org/pipermail/kbuild-all Intel Corporation
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