netdev - Re: [PATCH 4/9] s2io, rename BIT macro

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Message-ID: <46CE43FC.9040104@student.ltu.se>
Date:	Fri, 24 Aug 2007 04:35:40 +0200
From:	Richard Knutsson <ricknu-0@...dent.ltu.se>
To:	Jiri Slaby <jirislaby@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, ram.vepa@...erion.com,
	santosh.rastapur@...erion.com, sivakumar.subramani@...erion.com,
	sreenivasa.honnur@...erion.com, netdev@...r.kernel.org
Subject: Re: [PATCH 4/9] s2io, rename BIT macro

Jiri Slaby wrote:
> s2io, rename BIT macro
>
> BIT macro will be global definiton of (1<<x)
>
> Signed-off-by: Jiri Slaby <jirislaby@...il.com>
>
> ---
>   
[snip]
>  			cnt++;
>  			if (cnt == 5)
> diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
> index 92983ee..448f899 100644
> --- a/drivers/net/s2io.h
> +++ b/drivers/net/s2io.h
> @@ -14,7 +14,7 @@
>  #define _S2IO_H
>  
>  #define TBD 0
> -#define BIT(loc)		(0x8000000000000000ULL >> (loc))
> +#define s2BIT(loc)		(0x8000000000000000ULL >> (loc))
>  #define vBIT(val, loc, sz)	(((u64)val) << (64-loc-sz))
>  #define INV(d)  ((d&0xff)<<24) | (((d>>8)&0xff)<<16) | (((d>>16)&0xff)<<8)| ((d>>24)&0xff)
>  
>   
Sorry for the late response, but would it not be better/easier to use 
BIT() instead (or a global #define LLBIT(nr)  (1ULL << (nr))) and just 
recalculate the values?

Richard Knutsson

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