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Subjectlinux-next: build failure after merge of the akpm-current tree
Hi Andrew,

[As reported by Randy for uml ...]

After merging the akpm-current tree, today's linux-next build (sparc
defconfig) failed like this:

/home/sfr/next/next/mm/page_alloc.c: In function 'memmap_init_zone':
/home/sfr/next/next/mm/page_alloc.c:5450:11: error: implicit declaration of function 'memblock_next_valid_pfn'; did you mean 'memblock_virt_alloc_low'? [-Werror=implicit-function-declaration]
pfn = memblock_next_valid_pfn(pfn, end_pfn) - 1;
^~~~~~~~~~~~~~~~~~~~~~~
memblock_virt_alloc_low

Caused by commit

c3d8f8809701 ("mm: page_alloc: skip over regions of invalid pfns on UMA")

I have applied the following patch for today:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Thu, 22 Feb 2018 14:20:45 +1100
Subject: [PATCH] mm: page_alloc: skip over regions of invalid pfns on UMA fix

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
include/linux/memblock.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index c2f1a6996fad..90e6845f44be 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -423,6 +423,11 @@ static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
{
return 0;
}
+static inline unsigned long memblock_next_valid_pfn(unsigned long pfn,
+ unsigned long max_pfn)
+{
+ return pfn;
+}
#endif /* CONFIG_HAVE_MEMBLOCK */

#endif /* __KERNEL__ */
--
2.16.1
--
Cheers,
Stephen Rothwell
[unhandled content-type:application/pgp-signature]
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