[PATCH] powerpc/msi: Fix compile error on mpc83xx

[Jia Hongtao-B38951]

Hi Scott,

I made this patch to fix msi compile error on mpc83xx.
Could you please have a review.

Thanks.
-Hongtao

> -----Original Message-----
> From: Jia Hongtao-B38951
> Sent: Tuesday, July 02, 2013 9:37 AM
> To: linuxppc-dev at lists.ozlabs.org; Wood Scott-B07421
> Cc: galak at kernel.crashing.org; Li Yang-R58472; Jia Hongtao-B38951
> Subject: [PATCH] powerpc/msi: Fix compile error on mpc83xx
> 
> mpic_get_primary_version() is not defined when not using MPIC.
> The compile error log like:
> 
> arch/powerpc/sysdev/built-in.o: In function `fsl_of_msi_probe':
> fsl_msi.c:(.text+0x150c): undefined reference to
> `fsl_mpic_primary_get_version'
> 
> Signed-off-by: Jia Hongtao <hongtao.jia at freescale.com>
> ---
>  arch/powerpc/include/asm/mpic.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/powerpc/include/asm/mpic.h
> b/arch/powerpc/include/asm/mpic.h index ea6bf72..97b5a63 100644
> --- a/arch/powerpc/include/asm/mpic.h
> +++ b/arch/powerpc/include/asm/mpic.h
> @@ -394,7 +394,14 @@ struct mpic
>  #define	MPIC_REGSET_TSI108		MPIC_REGSET(1)	/* Tsi108/109
> PIC */
> 
>  /* Get the version of primary MPIC */
> +#ifdef CONFIG_MPIC
>  extern u32 fsl_mpic_primary_get_version(void);
> +#else
> +static inline u32 fsl_mpic_primary_get_version(void)
> +{
> +	return 0;
> +}
> +#endif
> 
>  /* Allocate the controller structure and setup the linux irq descs
>   * for the range if interrupts passed in. No HW initialization is
> --
> 1.8.0