linux-kernel - Re: [PATCH] fbdev: sm501fb: use memset

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Date:	Fri, 20 Feb 2015 14:10:08 +0200
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
CC:	<linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fbdev: sm501fb: use memset_io

On 10/02/15 14:37, Sudip Mukherjee wrote:
> we should really be using memset_io() instead of using memset() as
> this is actually io space mapped into our memory.
> 
> Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
> ---
> it has only been build tested. I only have the hardware of sm712 and sm750.
> 
>  drivers/video/fbdev/sm501fb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c
> index e8d4121..d0a4e2f 100644
> --- a/drivers/video/fbdev/sm501fb.c
> +++ b/drivers/video/fbdev/sm501fb.c
> @@ -1606,7 +1606,7 @@ static int sm501fb_start(struct sm501fb_info *info,
>  	info->fbmem_len = resource_size(res);
>  
>  	/* clear framebuffer memory - avoids garbage data on unused fb */
> -	memset(info->fbmem, 0, info->fbmem_len);
> +	memset_io(info->fbmem, 0, info->fbmem_len);
>  
>  	/* clear palette ram - undefined at power on */
>  	for (k = 0; k < (256 * 3); k++)
> 

Thanks, queued for 3.21.

 Tomi



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