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Subject: Re: [PATCH 2.4.21-rc1] vesafb with large memory
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Adam Mercer <r.a.mercer@blueyonder.co.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Marcelo Tosatti <marcelo@conectiva.com.br>
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Date: 30 Apr 2003 12:26:43 +0100
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On Mer, 2003-04-30 at 09:09, Adam Mercer wrote:
> -	video_size          = screen_info.lfb_size * 65536;

The above is correct. It returns the size of the frame buffer

> +	video_size          = screen_info.lfb_width *	screen_info.lfb_height * video_bpp;
> 	video_visual = (video_bpp == 8) ?
> 		FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;						#

The change computes the mode size. Thats probably safe for the ioremap
range