linux-kernel - Re: powerpc allmodconfig

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Message-ID: <48F6E54C.5010207@myri.com>
Date:	Thu, 16 Oct 2008 08:55:08 +0200
From:	Brice Goglin <brice@...i.com>
To:	Dan Williams <dan.j.williams@...el.com>
CC:	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	tiwai@...e.de, linux-ext4@...r.kernel.org, netdev@...r.kernel.org,
	linux-ide@...r.kernel.org, bzolnier@...il.com,
	marek.vasut@...il.com, dwmw2@...radead.org, mark.fasheh@...cle.com,
	ralf@...ux-mips.org, mchehab@...radead.org,
	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org, jesse.brandeburg@...el.com
Subject: Re: powerpc allmodconfig

Dan Williams wrote:
> On Wed, 2008-10-15 at 22:02 -0700, David Miller wrote:
>   
>>> drivers/dma/ioat_dca.c: In function 'dca_enabled_in_bios':
>>> drivers/dma/ioat_dca.c:81: error: implicit declaration of function 'cpuid_eax'
>>> drivers/dma/ioat_dca.c: In function 'system_has_dca_enabled':
>>> drivers/dma/ioat_dca.c:91: error: implicit declaration of function 'boot_cpu_has'
>>> drivers/dma/ioat_dca.c:91: error: 'X86_FEATURE_DCA' undeclared (first use in this function)
>>> drivers/dma/ioat_dca.c:91: error: (Each undeclared identifier is reported only once
>>> drivers/dma/ioat_dca.c:91: error: for each function it appears in.)
>>> drivers/dma/ioat_dca.c: In function 'ioat_dca_get_tag':
>>> drivers/dma/ioat_dca.c:190: error: implicit declaration of function 'cpu_physical_id'
>>>       
>> Known issue.  I tried to ping Jeff Garzik about doing a driver bug fix run in
>> order to fix this, but he hasn't shown any signs of life.
>>
>> So I'll do it myself later tonight. :-/
>>
>>     
> The following seems to fix this up...
>
> ---snip--->
> ixgbe, myri10ge: INTEL_IOATDMA can only be selected when X86=y
>   

There's already a completely different fix queued in netdev patchworks
(for myri10ge only right now, to be duplicated for Intel drivers). The
idea is to stop having almost-unrelated drivers select each other
directly, let people select which drivers they really want, and have
Kconfig handle modules/builtin-stuff correctly. See
http://patchwork.ozlabs.org/patch/4506/

Brice

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