linux-kernel - RE: [Linux-fbdev-devel] [PATCH 1/9] viafb: VIA Frame Buffer Device Driver

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Message-ID: <C80EF34A3D2E494DBAF9AC29C7AE4EB806F67855@exchtp03.taipei.via.com.tw>
Date:	Thu, 8 May 2008 08:58:31 +0800
From:	<JosephChan@....com.tw>
To:	<akpm@...ux-foundation.org>, <krzysztof.h1@...zta.fm>
Cc:	<geert@...ux-m68k.org>, <linux-fbdev-devel@...ts.sourceforge.net>,
	<linux-kernel@...r.kernel.org>
Subject: RE: [Linux-fbdev-devel] [PATCH 1/9] viafb: VIA Frame Buffer Device Driver - Resend

Hi Andrew,

Thanks a lot.
I will check the the scripts/checkpatch.pl after the codes are modified. 

About the subject, that's my carelessness and I will correct them by your recommendation next time.

In addition, should I resend the patches after they are modified? Thanks.

BRs,
Joseph Chan 

-----Original Message-----
From: Andrew Morton [mailto:akpm@...ux-foundation.org] 
Sent: Thursday, May 08, 2008 5:04 AM
To: Krzysztof Helt
Cc: Joseph Chan; geert@...ux-m68k.org; linux-fbdev-devel@...ts.sourceforge.net; linux-kernel@...r.kernel.org
Subject: Re: [Linux-fbdev-devel] [PATCH 1/9] viafb: VIA Frame Buffer Device Driver - Resend

On Wed, 7 May 2008 18:43:33 +0200
Krzysztof Helt <krzysztof.h1@...zta.fm> wrote:

> A general comment is that you use to many global variables.

yes, that was my first impression.  The _names_ of those variables is a real problem.  lcd_mode, DeviceStatus, second_size, primary_dev, etc.  The driver is attempting to reserve all those names for itself, kernel-wide.

So at a minimum, going through and prepending viafb_ onto all those would be needed.

There are a number of layout glitches in there.  Such as a strange combination of two styles:

void foo(void)
{

versus

void foo(void ) {

Many of these things can be pinpointed by processing the diff with scripts/checkpatch.pl.

Administrative note: all nine patches had the same title "viafb: VIA Frame Buffer Device Driver".  Please choose unique and meaningful names for each patch, such as "viafb: add utility header file".

Apart from those fairly easily-fixed things, the driver looks pretty good from a quick scan, given how large it is, and given that it probably has been around for quite a long time..

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