linux-kernel - Re: [PATCH 3/4] pxafb: move parallel LCD timing setup into dedicate function

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Message-Id: <20080408012136.30b71560.akpm@linux-foundation.org>
Date:	Tue, 8 Apr 2008 01:21:36 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"eric miao" <eric.y.miao@...il.com>
Cc:	"linux-arm-kernel email list" 
	<linux-arm-kernel@...ts.arm.linux.org.uk>,
	linux-fbdev-devel@...ts.sourceforge.net,
	lkml <linux-kernel@...r.kernel.org>,
	"Russell King - ARM Linux" <linux@....linux.org.uk>,
	"Daniel Mack" <daniel@...aq.de>
Subject: Re: [PATCH 3/4] pxafb: move parallel LCD timing setup into dedicate
 function

On Tue, 8 Apr 2008 12:05:16 +0800 "eric miao" <eric.y.miao@...il.com> wrote:

> @@ -636,61 +671,31 @@ static int pxafb_activate_var(struct
> fb_var_screeninfo *var,
>  		printk(KERN_ERR "%s: invalid lower_margin %d\n",
>  			fbi->fb.fix.id, var->lower_margin);
>  #endif
> +	/* Update shadow copy atomically */
> +	local_irq_save(flags);

So this code will only ever work on uniprocessor machines?

Is this a safe and reasonable assumption?
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