linux-kernel - Re: [PATCH] mempool: add missing include

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Message-ID: <alpine.DEB.2.10.1504091230400.11370@chino.kir.corp.google.com>
Date:	Thu, 9 Apr 2015 12:31:05 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Arnd Bergmann <arnd@...db.de>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andrey Ryabinin <a.ryabinin@...sung.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] mempool: add missing include

On Thu, 9 Apr 2015, Arnd Bergmann wrote:

> This is a fix^3 for the mempool poisoning patch, which introduces
> a compile-time error on some ARM randconfig builds:
> 
> mm/mempool.c: In function 'check_element':
> mm/mempool.c:65:16: error: implicit declaration of function 'kmap_atomic' [-Werror=implicit-function-declaration]
>    void *addr = kmap_atomic((struct page *)element);
> 
> The problem is clearly the missing declaration, and including
> linux/highmem.h fixes it.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: a3db5a8463b0db ("mm, mempool: poison elements backed by page allocator fix fix")

Acked-by: David Rientjes <rientjes@...gle.com>

Thanks!  Can you confirm that this is because CONFIG_BLOCK is disabled and 
not something else?
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