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Date: Mon, 18 Feb 2008 15:45:46 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "David P. Reed" <dpreed@reed.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
       "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org,
       "David P. Reed" <dpreed@reed.com>
Subject: Re: [patch 1/2] x86: define outb_pic and inb_pic to stop using
 outb_p and inb_p
Message-ID: <20080218154546.66e4c72d@core>
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> +unsigned char inb_pic(unsigned int port)
> +{
> +	/* delay for some accesses to PIC on motherboard or in chipset must be
> +	   at least one microsecond, but be safe here. */
> +	unsigned char value = inb(port);
> +	udelay(2);
> +	return value;
> +}

inline it. Its almost no instructions