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Date: Mon, 26 Jan 2015 13:24:14 -0600
From: Kim Phillips <kim.phillips@freescale.com>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: Re: [PATCH 2/2] mm: fix undefined reference to `.kernel_map_pages'
 on PPC builds
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Cc: Konstantin Khlebnikov <k.khlebnikov@samsung.com>,
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On Thu, 22 Jan 2015 10:45:51 +0900
Joonsoo Kim <iamjoonsoo.kim@lge.com> wrote:

> From 7cb9d1ed8a785df152cb8934e187031c8ebd1bb2 Mon Sep 17 00:00:00 2001
> From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
> Date: Thu, 22 Jan 2015 10:28:58 +0900
> Subject: [PATCH] mm/debug_pagealloc: fix build failure on ppc and some other
>  archs
> 
> Kim Phillips reported following build failure.
> 
>   LD      init/built-in.o
>   mm/built-in.o: In function `free_pages_prepare':
>   mm/page_alloc.c:770: undefined reference to `.kernel_map_pages'
>   mm/built-in.o: In function `prep_new_page':
>   mm/page_alloc.c:933: undefined reference to `.kernel_map_pages'
>   mm/built-in.o: In function `map_pages':
>   mm/compaction.c:61: undefined reference to `.kernel_map_pages'
>   make: *** [vmlinux] Error 1
> 
> Reason for this problem is that commit 031bc5743f15
> ("mm/debug-pagealloc: make debug-pagealloc boottime configurable") forgot
> to remove old declaration of kernel_map_pages() in some architectures.
> This patch removes them to fix build failure.
> 
> Reported-by: Kim Phillips <kim.phillips@freescale.com>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
> ---

Acked-by: Kim Phillips <kim.phillips@freescale.com>

Thanks,

Kim