Re: [PATCH 2/5] x86: use get_desc_base

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On Wed, 2007-11-21 at 02:20 -0800, Roland McGrath wrote:
> This changes a couple of places to use the get_desc_base function.
> They were duplicating the same calculation with different equivalent code.
> 
> Signed-off-by: Roland McGrath <[email protected]>
> 
> diff --git a/arch/x86/ia32/tls32.c b/arch/x86/ia32/tls32.c
> index 1cc4340..5291596 100644
> --- a/arch/x86/ia32/tls32.c
> +++ b/arch/x86/ia32/tls32.c
> @@ -85,11 +85,6 @@ asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
>   * Get the current Thread-Local Storage area:
>   */
>  
> -#define GET_BASE(desc) ( \
> -	(((desc)->a >> 16) & 0x0000ffff) | \
> -	(((desc)->b << 16) & 0x00ff0000) | \
> -	( (desc)->b        & 0xff000000)   )

Are you sure there still aren't more of these things floating around?  I
recall ptrace and process.c even having one at one point, hopefully they
are all gone.

Nice cleanups,

Zach


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