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

From: Rob Herring <[email-masked]>
Date: Mon, 28 Oct 2013 18:30:31 -0500

On 10/28/2013 03:38 AM, Stephen Rothwell wrote:
> Hi Rob,
> 
> After merging the dt-rh tree, today's linux-next build (powerpc 
> ppc64_defconfig) failed like this:
> 
> arch/powerpc/platforms/powernv/rng.c: In function
> 'rng_init_per_cpu': arch/powerpc/platforms/powernv/rng.c:64:2:
> error: implicit declaration of function 'of_get_ibm_chip_id'
> [-Werror=implicit-function-declaration] chip_id =
> of_get_ibm_chip_id(dn); ^ arch/powerpc/platforms/powernv/rng.c: In
> function 'rng_create': arch/powerpc/platforms/powernv/rng.c:85:2:
> error: implicit declaration of function 'of_iomap'
> [-Werror=implicit-function-declaration] rng->regs= of_iomap(dn, 0);
>   ^
> arch/powerpc/platforms/powernv/rng.c:85:12: error: assignment makes pointer from integer without a cast [-Werror]
>   rng->regs = of_iomap(dn, 0);
>             ^
> 
> Caused by commit a4da0d50b2a0 ("powerpc: Implement
> arch_get_random_long/int() for powernv") from the powerpc tree
> interacting with commit b5b4bb3f6a11 ("of: only include prom.h on sparc")
> from the dt-rh tree.
> 
> I added this merge fix patch (which will need to be sent to Linus when
> these two trees get merged, or could be applied now to the powerpc tree):

Applying to the powerpc tree now seems like the better path.

> From: Stephen Rothwell <[email-masked]>
> Date: Mon, 28 Oct 2013 19:34:41 +1100
> Subject: [PATCH] powerpc: add include of prom.h to fix powernv/rng.c build
> 
> Signed-off-by: Stephen Rothwell <[email-masked]>

Acked-by: Rob Herring <[email-masked]>

Rob