powerpc virq: minor cleanups

[Benjamin Herrenschmidt]

On Fri, 2006-08-25 at 16:02 -0700, Geoff Levand wrote:
> Ben,
> 
> Please consider these cleanups.
> 
> 
> Signed-off-by: Geoff Levand <geoffrey.levand at am.sony.com>

Acked-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>

> ---
> Index: cell--common--4/arch/powerpc/kernel/irq.c
> ===================================================================
> --- cell--common--4.orig/arch/powerpc/kernel/irq.c
> +++ cell--common--4/arch/powerpc/kernel/irq.c
> @@ -678,7 +680,7 @@
>  }
>  EXPORT_SYMBOL_GPL(irq_dispose_mapping);
>  
> -unsigned int irq_find_mapping(struct irq_host *host,
> +unsigned int irq_find_mapping(const struct irq_host *host,
>  			      irq_hw_number_t hwirq)
>  {
>  	unsigned int i;
> Index: cell--common--4/include/asm-powerpc/irq.h
> ===================================================================
> --- cell--common--4.orig/include/asm-powerpc/irq.h
> +++ cell--common--4/include/asm-powerpc/irq.h
> @@ -28,10 +28,10 @@
>  
>  #ifdef CONFIG_PPC_MERGE
>  
> -/* This number is used when no interrupt has been assigned */
> +/* This number is used when no virq has been assigned */
>  #define NO_IRQ			(0)
>  
> -/* This is a special irq number to return from get_irq() to tell that
> +/* This is a special virq number to return from get_irq() to tell that
>   * no interrupt happened _and_ ignore it (don't count it as bad). Some
>   * platforms like iSeries rely on that.
>   */
> @@ -217,7 +222,7 @@
>   * irq controller implementation directly calls the appropriate low level
>   * mapping function.
>   */
> -extern unsigned int irq_find_mapping(struct irq_host *host,
> +extern unsigned int irq_find_mapping(const struct irq_host *host,
>  				     irq_hw_number_t hwirq);
>  
>