linux-kernel - Re: [PATCH 01/19] pci: introduce an pci

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Date:	Mon, 29 Sep 2008 19:02:37 +0200
From:	Rolf Eike Beer <eike-kernel@...tec.de>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [PATCH 01/19] pci: introduce an pci_ioremap(pdev, barnr) function

Arjan van de Ven wrote:
> The patch below introduces a pci_ioremap() function that should make it
> easier for driver authors to do the right thing for the simple, common
> case.
>
> There's also 18 patches that introduce users of this; to reduce lkml noise
> I've only stuck them in a git tree at
> git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-pci_ioremap.g
>it
> (http://git.kernel.org/?p=linux/kernel/git/arjan/linux-2.6-pci_ioremap.git;
>a=summary)
>
>
> From fef1dd836bc7dc07962a0ae4019af9efd373c76f Mon Sep 17 00:00:00 2001
> From: Arjan van de Ven <arjan@...ux.intel.com>
> Date: Fri, 26 Sep 2008 16:34:52 -0700
> Subject: [PATCH 01/19] pci: introduce an pci_ioremap(pdev, barnr) function
>
> A common thing in many PCI drivers is to ioremap() an entire bar.
> This is a slightly fragile thing right now, needing both an address and a
> size, and many driver writers do.. various things there.
>
> This patch introduces an pci_ioremap() function taking just a PCI device
> struct and the bar number as arguments, and figures this all out itself, in
> one place. In addition, we can add various sanity checks to this function
> (the patch already checks to make sure that the bar in question really is a
> MEM bar; few to no drivers do that sort of thing).

This is the same like pci_iomap(pdev, number, 0), no?

Greetings,

Eike

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