linux-kernel - Re: [PATCH] ufs: [bl]e*_add

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Date:	Fri, 15 Feb 2008 21:28:15 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Roel Kluin <12o3l@...cali.nl>
Cc:	marcin.slusarz@...il.com, LKML <linux-kernel@...r.kernel.org>,
	Evgeniy Dushistov <dushistov@...l.ru>
Subject: Re: [PATCH] ufs: [bl]e*_add_cpu conversion

On Wed, 13 Feb 2008 10:41:44 +0100 Roel Kluin <12o3l@...cali.nl> wrote:

> you may also want these:
> ---
> [bl]e_add_cpu conversion in return
> 
> Signed-off-by: Roel Kluin <12o3l@...cali.nl>
> ---
> diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
> index 1683d2b..a1e3000 100644
> --- a/fs/ufs/swab.h
> +++ b/fs/ufs/swab.h
> @@ -44,18 +44,22 @@ static __inline u32
>  fs64_add(struct super_block *sbp, u32 *n, int d)
>  {
>  	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
> -		return *n = cpu_to_le64(le64_to_cpu(*n)+d);
> +		le64_add_cpu(n, d);
>  	else
> -		return *n = cpu_to_be64(be64_to_cpu(*n)+d);
> +		be64_add_cpu(n, d);
> +
> +	return *n;
>  }
>  
>  static __inline u32
>  fs64_sub(struct super_block *sbp, u32 *n, int d)
>  {
>  	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
> -		return *n = cpu_to_le64(le64_to_cpu(*n)-d);
> +		le64_add_cpu(n, -d);
>  	else
> -		return *n = cpu_to_be64(be64_to_cpu(*n)-d);
> +		be64_add_cpu(n, -d);
> +
> +	return *n;
>  }
>  
>  static __inline u32

upsets powerpc (at least):

fs/ufs/swab.h: In function `fs64_add':
fs/ufs/swab.h:47: warning: passing arg 1 of `le64_add_cpu' from incompatible pointer type
fs/ufs/swab.h:49: warning: passing arg 1 of `be64_add_cpu' from incompatible pointer type
fs/ufs/swab.h: In function `fs64_sub':
fs/ufs/swab.h:58: warning: passing arg 1 of `le64_add_cpu' from incompatible pointer type
fs/ufs/swab.h:60: warning: passing arg 1 of `be64_add_cpu' from incompatible pointer type
--
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