[U-Boot] [PATCH] arm1136: cosmetic: Remove double test on CONFIG_SYS_DCACHE_OFF

[Albert ARIBAUD]

Hi Benoît,

On Tue, 14 Aug 2012 15:17:09 +0200 (CEST), Benoît Thébaudeau
<benoit.thebaudeau at advansee.com> wrote:

> Remove a redundant '#ifndef CONFIG_SYS_DCACHE_OFF' nested in the same #ifndef.
> 
> Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau at advansee.com>
> Cc: Albert Aribaud <albert.u.boot at aribaud.net>
> ---
>  .../arch/arm/cpu/arm1136/cpu.c                     |    2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git u-boot-4d3c95f.orig/arch/arm/cpu/arm1136/cpu.c u-boot-4d3c95f/arch/arm/cpu/arm1136/cpu.c
> index b98e3d9..1136c1d 100644
> --- u-boot-4d3c95f.orig/arch/arm/cpu/arm1136/cpu.c
> +++ u-boot-4d3c95f/arch/arm/cpu/arm1136/cpu.c
> @@ -146,9 +146,7 @@ void enable_caches(void)
>  #ifndef CONFIG_SYS_ICACHE_OFF
>  	icache_enable();
>  #endif
> -#ifndef CONFIG_SYS_DCACHE_OFF
>  	dcache_enable();
> -#endif
>  }
>  
>  #else /* #ifndef CONFIG_SYS_DCACHE_OFF */

I'll NAK this one because:

1) obviously the big #ifndef CONFIG_SYS_DCACHE_OFF / #else /#endif is
there to provide either working D$ functions or empty ones;

2) enable_caches() exists only in the "then" branch, not at all in the
"else" branch, which makes it a surprising exception;

3) enable_caches() is the only function in the if/then/else acting on I$
as well as D$;

... so I suspect it did not actually belong in the big if/then/else in
the first place and should not be modified but moved after the #endif.

Please provide a V2 patch, I promise it'll get processed faster than
this V1.

Amicalement,
-- 
Albert.