linux-kernel - Re: linux-next: build failure after merge of the final tree (scsi-post-merge tree related)

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Message-ID: <4C570464.9010204@cs.wisc.edu>
Date:	Mon, 02 Aug 2010 12:46:12 -0500
From:	Mike Christie <michaelc@...wisc.edu>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jayamohan Kallickal <jayamohank@...verengines.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the final tree (scsi-post-merge
 tree related)

On 08/02/2010 11:54 AM, James Bottomley wrote:
> missing linux-scsi added to cc list.
>
> On Tue, 2010-08-03 at 02:47 +1000, Stephen Rothwell wrote:
>> Hi all,
>>
>> On Tue, 3 Aug 2010 02:44:45 +1000 Stephen Rothwell<sfr@...b.auug.org.au>  wrote:
>>>
>>> After merging the final tree, today's linux-next build (powerpc allmodconfig)
>>> failed like this:
>>>
>>> ERROR: ".iscsi_boot_destroy_kset" [drivers/scsi/be2iscsi/be2iscsi.ko] undefined!
>>> ERROR: ".iscsi_boot_create_host_kset" [drivers/scsi/be2iscsi/be2iscsi.ko] undefined!
>>> ERROR: ".iscsi_boot_create_target" [drivers/scsi/be2iscsi/be2iscsi.ko] undefined!
>>> ERROR: ".iscsi_boot_create_initiator" [drivers/scsi/be2iscsi/be2iscsi.ko] undefined!
>>> ERROR: ".iscsi_boot_create_ethernet" [drivers/scsi/be2iscsi/be2iscsi.ko] undefined!
>>>
>>> Caused by commit a33e2a708b2e83ee6111e45c8d3d49a112c3c887 ("[SCSI]
>>> be2iscsi: Add support for iscsi boot").  For some reason, commit
>>> ed94aa526655d915076dcdbbf4fc962b2a67fcb5 ("[SCSI] be2iscsi: select
>>> ISCSI_BOOT_SYSFS") was not sufficient to make sure that
>>> CONFIG_ISCSI_BOOT_SYSFS is defined for this build.
>>
>> It turns out that drivers/firmware/Kconfig is only included on x86, ia64
>> and blackfin.
>
> OK, we need to turn this around then and make be2iscsi only use iscsi
> boot if it's enabled ... that's going to be some fun #ifdefing in the
> driver.
>

I think my mistake was to put iscsi_boot_sysfs in drivers/firmware. The 
interface is generic and should be used on any arch and with anything 
(ibft or iscsi driver) that wants to export iscsi boot info. The 
attached patch moves iscsi_boot_sysfs to drivers/scsi. It was made over 
linux-next. I have only compile tested it.

View attachment "0001-iscsi-boot-mv-iscsi_boot_sysfs-to-drivers-scsi.patch" of type "text/plain" (37154 bytes)