Subject: Re: linux-next: build failure after merge of the mfd tree

From: Samuel Ortiz <[email-masked]>
Date: Wed, 7 Apr 2010 10:52:12 +0200

Hi Stephen,

On Wed, Apr 07, 2010 at 02:51:13PM +1000, Stephen Rothwell wrote:
> Hi Samuel,
> 
> After merging the mfd tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> drivers/gpio/janz-ttl.c: In function 'ttl_probe':
> drivers/gpio/janz-ttl.c:158: error: implicit declaration of function 'kzalloc'
> drivers/gpio/janz-ttl.c:158: warning: assignment makes pointer from integer without a cast
> drivers/gpio/janz-ttl.c:210: error: implicit declaration of function 'kfree'
> 
> Caused by commit 989b68d7d885a45099126e32b46304afd9b3789e ("gpio: Add
> support for Janz VMOD-TTL Digital IO module") interacting with commit
> de380b55f92986c1a84198149cb71b7228d15fbd ("percpu: don't implicitly
> include slab.h from percpu.h").
Sorry about that. That's fixed with the latest mfd tree.

Cheers,
Samuel.

> I applied the following fix patch for today.
> 
> From: Stephen Rothwell <[email-masked]>
> Date: Wed, 7 Apr 2010 14:47:52 +1000
> Subject: [PATCH] gpio: janz-ttl: using kzalloc/kfree requires including slab.h
> 
> Signed-off-by: Stephen Rothwell <[email-masked]>
> ---
>  drivers/gpio/janz-ttl.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/gpio/janz-ttl.c b/drivers/gpio/janz-ttl.c
> index d97eeda..813ac07 100644
> --- a/drivers/gpio/janz-ttl.c
> +++ b/drivers/gpio/janz-ttl.c
> @@ -17,6 +17,7 @@
>  #include <linux/platform_device.h>
>  #include <linux/io.h>
>  #include <linux/gpio.h>
> +#include <linux/slab.h>
>  
>  #include <linux/mfd/janz.h>
>  
> -- 
> 1.7.0.3
> 
> -- 
> Cheers,
> Stephen Rothwell                    [email-masked]
> http://www.canb.auug.org.au/~sfr/

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