On Mon, Mar 31, 2014 at 05:08:49PM +0800, kbuild test robot wrote:
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: 8a896813a328f23aeee5f56d3139361534796636
> commit: 64aa967f459ba0bb91ea8b127c9bd586db1beabc [114/486] pagemap: redefine callback functions for page table walker
> config: x86_64-randconfig-br2-03311043 (attached as .config)
>
> Note: the next/master HEAD 8a896813a328f23aeee5f56d3139361534796636 builds fine.
> It only hurts bisectibility.
>
> All error/warnings:
>
> fs/proc/task_mmu.c: In function 'pagemap_read':
> >> fs/proc/task_mmu.c:1120:31: error: 'pagemap_hugetlb' undeclared (first use in this function)
> pagemap_walk.hugetlb_entry = pagemap_hugetlb;
> ^
> fs/proc/task_mmu.c:1120:31: note: each undeclared identifier is reported only once for each function it appears in
> fs/proc/task_mmu.c: At top level:
> fs/proc/task_mmu.c:1025:12: warning: 'pagemap_hugetlb_range' defined but not used [-Wunused-function]
> static int pagemap_hugetlb_range(pte_t *pte, unsigned long hmask,
> ^
pagemap_hugetlb_range() should be renamed to pagemap_hugetlb() at 64aa967f459b
("pagemap: redefine callback functions for page table walker"), while it is
currently done by dc86a8715d79 ("pagewalk: remove argument hmask from
hugetlb_entry()") afterward like below:
@@ -1022,8 +1022,7 @@ static void huge_pte_to_pagemap_entry(pagemap_entry_t *pme, struct pagemapread *
}
/* This function walks within one hugetlb entry in the single call */
-static int pagemap_hugetlb_range(pte_t *pte, unsigned long hmask,
- unsigned long addr, unsigned long end,
+static int pagemap_hugetlb(pte_t *pte, unsigned long addr, unsigned long end,
struct mm_walk *walk)
{
struct pagemapread *pm = walk->private;
Obviously, dc86a8715d79 should only remove hmask.
Sorry for my poor patch separation.
Thanks,
Naoya Horiguchi
> vim +/pagemap_hugetlb +1120 fs/proc/task_mmu.c
>
> 1114 goto out_free;
> 1115
> 1116 pagemap_walk.pte_entry = pagemap_pte;
> 1117 pagemap_walk.pmd_entry = pagemap_pmd;
> 1118 pagemap_walk.pte_hole = pagemap_pte_hole;
> 1119 #ifdef CONFIG_HUGETLB_PAGE
> > 1120 pagemap_walk.hugetlb_entry = pagemap_hugetlb;
> 1121 #endif
> 1122 pagemap_walk.mm = mm;
> 1123 pagemap_walk.private = ±
>
> ---
> 0-DAY kernel build testing backend Open Source Technology Center
> http://lists.01.org/mailman/listinfo/kbuild Intel Corporation
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