mtd: fix build error in m25p80.c

[Grant Likely]

On Fri, Oct 29, 2010 at 09:04:19PM -0700, Andres Salomon wrote:
> 
> While building an x86 distro kernel, I hit the following:
> 
> Kernel: arch/x86/boot/bzImage is ready  (#7)
> ERROR: "of_mtd_parse_partitions" [drivers/mtd/devices/m25p80.ko]
> undefined!
> 
> of_mtd_parse_partitions is defined with MTD_OF_PARTS, and that's only
> built on PPC and microblaze.  The code in question should be wrapped w/
> a stricter #ifdef.
> 
> Signed-off-by: Andres Salomon <dilinger at queued.net>
> ---
>  drivers/mtd/devices/m25p80.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
> index ea22520..184ddd5 100644
> --- a/drivers/mtd/devices/m25p80.c
> +++ b/drivers/mtd/devices/m25p80.c
> @@ -924,7 +924,7 @@ static int __devinit m25p_probe(struct spi_device *spi)
>  			nr_parts = data->nr_parts;
>  		}
>  
> -#ifdef CONFIG_OF
> +#ifdef CONFIG_MTD_OF_PARTS
>  		if (nr_parts <= 0 && spi->dev.of_node) {
>  			nr_parts = of_mtd_parse_partitions(&spi->dev,
>  					spi->dev.of_node, &parts);

True; but CONFIG_MTD_OF_PARTS should be built on all architectures
when CONFIG_OF & CONFIG_MTD_PARTITIONS is set.  I'll craft a patch.

g.