linux-kernel - Re: [PATCH 2.6.20] arch M68KNOMMU: user ARRAY

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Date:	Mon, 05 Feb 2007 15:40:13 +1000
From:	Greg Ungerer <gerg@...pgear.com>
To:	"Ahmed S. Darwish" <darwish.07@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.20] arch M68KNOMMU: user ARRAY_SIZE macro when appropriate

Hi Ahmed,

Ahmed S. Darwish wrote:
> A patch to use ARRAY_SIZE macro already defined in linux/kernel.h
> 
> Signed-off-by: Ahmed S. Darwish <darwish.07@...il.com>
> ---
> Patch isn't compile checked cause I have no M68KNOMMU board at hand.

Compiled and tested on m68knommu, no problems.

Signed-off-by: Greg Ungerer <gerg@...inux.org>

Regards
Greg




> diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
> index 9130119..72d3496 100644
> --- a/arch/m68knommu/kernel/ptrace.c
> +++ b/arch/m68knommu/kernel/ptrace.c
> @@ -62,7 +62,7 @@ static inline long get_reg(struct task_struct *task, int regno)
>  
>  	if (regno == PT_USP)
>  		addr = &task->thread.usp;
> -	else if (regno < sizeof(regoff)/sizeof(regoff[0]))
> +	else if (regno < ARRAY_SIZE(regoff))
>  		addr = (unsigned long *)(task->thread.esp0 + regoff[regno]);
>  	else
>  		return 0;
> @@ -79,7 +79,7 @@ static inline int put_reg(struct task_struct *task, int regno,
>  
>  	if (regno == PT_USP)
>  		addr = &task->thread.usp;
> -	else if (regno < sizeof(regoff)/sizeof(regoff[0]))
> +	else if (regno < ARRAY_SIZE(regoff))
>  		addr = (unsigned long *) (task->thread.esp0 + regoff[regno]);
>  	else
>  		return -1;
> diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c
> index 9129b3a..bed5f47 100644
> --- a/arch/m68knommu/kernel/traps.c
> +++ b/arch/m68knommu/kernel/traps.c
> @@ -158,7 +158,7 @@ void show_stack(struct task_struct *task, unsigned long *stack)
>  void bad_super_trap(struct frame *fp)
>  {
>  	console_verbose();
> -	if (fp->ptregs.vector < 4*sizeof(vec_names)/sizeof(vec_names[0]))
> +	if (fp->ptregs.vector < 4 * ARRAY_SIZE(vec_names))
>  		printk (KERN_WARNING "*** %s ***   FORMAT=%X\n",
>  			vec_names[(fp->ptregs.vector) >> 2],
>  			fp->ptregs.format);
> 

-- 
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Greg Ungerer  --  Chief Software Dude       EMAIL:     gerg@...pgear.com
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