linux-kernel - Re: [PATCH] gpio: Langwell GPIO driver miscellaneous clean-ups

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Message-Id: <20091124122937.ac9371d0.akpm@linux-foundation.org>
Date:	Tue, 24 Nov 2009 12:29:37 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Alek Du <alek.du@...el.com>
Cc:	Kernel Mailing List <linux-kernel@...r.kernel.org>,
	David Brownell <david-b@...bell.net>
Subject: Re: [PATCH] gpio: Langwell GPIO driver miscellaneous clean-ups

On Sun, 22 Nov 2009 11:19:01 +0800
Alek Du <alek.du@...el.com> wrote:

> >From 9ba8224f5246ef7fdf1c0a15bb5535e442731435 Mon Sep 17 00:00:00 2001
> From: Alek Du <alek.du@...el.com>
> Date: Sun, 22 Nov 2009 10:58:21 +0800
> Subject: [PATCH] gpio: Langwell GPIO driver miscellaneous clean-ups
> 
> 1. Use >= N to check invalid gpio number (unsigned type)

I already had this in gpio-fix-test-on-unsigned-in-lnw_irq_type.patch

> 2. Remove wrong and unnecessary unmask operation
> 3. Remove extra GEDR reading
> 
> The 2) and 3) will fix interrupts losing when two or more pins are triggered at close time.
> 

Those aren't cleanups - they're bug fixes!

How important are they?
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