linux-kernel - Re: linux-next: build failure after merge of the akpm tree

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Message-ID: <20141106112359.GJ26297@ulmo>
Date:	Thu, 6 Nov 2014 12:24:00 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Vladimir Davydov <vdavydov@...allels.com>
Subject: Re: linux-next: build failure after merge of the akpm tree

On Thu, Nov 06, 2014 at 07:36:18PM +1100, Stephen Rothwell wrote:
> Hi Andrew,
> 
> After merging the akpm tree, today's linux-next build (sparc defconfig)
> failed like this:
> 
> mm/slab.c: In function 'slab_alloc':
> mm/slab.c:3260:4: error: implicit declaration of function 'slab_free' [-Werror=implicit-function-declaration]
>     slab_free(cachep, objp);
>     ^
> mm/slab.c: At top level:
> mm/slab.c:3534:29: warning: conflicting types for 'slab_free'
>  static __always_inline void slab_free(struct kmem_cache *cachep, void *objp)
>                              ^
> mm/slab.c:3534:29: error: static declaration of 'slab_free' follows non-static declaration
> mm/slab.c:3260:4: note: previous implicit declaration of 'slab_free' was here
>     slab_free(cachep, objp);
>     ^
> 
> I am not sure what caused this, but it is something in the akpm-current
> or akpm trees (possibly interacting with something else).

I fixed this using the attached patch.

Thierry

View attachment "0001-mm-slab-Always-predeclare-slab_free.patch" of type "text/x-diff" (1959 bytes)

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