netdev - Re: [PATCH] netdev: mv643xx_eth: Prevent build on PPC32

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Date:	Wed, 06 Jun 2012 00:30:05 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Josh Boyer <jwboyer@...hat.com>
Cc:	Lennert Buytenhek <buytenh@...tstofly.org>,
	Andrew Lunn <andrew@...n.ch>, Olof Johansson <olof@...om.net>,
	netdev@...r.kernel.org
Subject: Re: [PATCH] netdev: mv643xx_eth: Prevent build on PPC32

On Tue, 2012-06-05 at 15:28 -0400, Josh Boyer wrote:
> Commit 452503ebc (ARM: Orion: Eth: Add clk/clkdev support.) added use of
> the clk driver API which results in compile errors on architectures that
> don't implement the clk API.
> 
> ERROR: "clk_enable" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> ERROR: "clk_disable" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> ERROR: "clk_put" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> ERROR: "clk_get_rate" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> ERROR: "clk_get" [drivers/net/ethernet/marvell/mv643xx_eth.ko] undefined!
> 
> Selecting CLKDEV_LOOKUP doesn't fix this either, as the build then fails with:
> 
> In file included from drivers/clk/clkdev.c:21:0:
> include/linux/clkdev.h:15:24: fatal error: asm/clkdev.h: No such file or directory
> 
> So we just prevent this from building at all on PPC32.
[...]

This dependency was introduced by:

commit 16b817579fb61050f1abcc0e81089974328a9c27
Author: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Date:   Sat Apr 16 15:24:30 2005 -0700

    [PATCH] ppc32: MV643XX ethernet is an option for Pegasos

commit 06ede91017d015a03cf8c1c87b3ff668f9a846e0
Author: Dale Farnsworth <dale@...nsworth.org>
Date:   Wed Sep 20 12:24:34 2006 -0700

    [PATCH] mv643xx_eth: restrict to 32-bit PPC_MULTIPLATFORM

If Pegasos is still supposed to be supported then this needs to be fixed
properly.

Ben.

-- 
Ben Hutchings
I haven't lost my mind; it's backed up on tape somewhere.

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