Re: [PATCH] - UV fix compile error on IA64 & eliminate compilerwarning

[Ingo Molnar]

* Jack Steiner <steiner@xxxxxxx> wrote:

> 
> The GRU driver is used on both IA64 & x86.
> The 2 architectures have different ways of detecting the
> platform type, ie. whether the platform is a UV system.
> Although it is possible to reconcile the 2 methods,
> only one place currently makes the test.
> 
> Also eliminate a warning message in uv.h.
> 
> Signed-off-by: Jack Steiner <steiner@xxxxxxx>
> 
> 
> ---
>  arch/x86/include/asm/uv/uv.h   |    1 +
>  drivers/misc/sgi-gru/gru.h     |    2 --
>  drivers/misc/sgi-gru/grufile.c |    1 +
>  3 files changed, 2 insertions(+), 2 deletions(-)
> 
> Index: linux/arch/x86/include/asm/uv/uv.h
> ===================================================================
> --- linux.orig/arch/x86/include/asm/uv/uv.h	2009-01-28 12:43:27.000000000 -0600
> +++ linux/arch/x86/include/asm/uv/uv.h	2009-01-28 15:13:58.000000000 -0600
> @@ -2,6 +2,7 @@
>  #define _ASM_X86_UV_UV_H
>  
>  enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
> +struct mm_struct;

hm, why is this needed?

>  #define IS_UV()		is_uv_system()

btw., why is there an ugly IS_UV() macro. All code should be using 
is_uv_system() and IS_UV() should be removed.

	Ingo
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