From: Paul Mackerras <paulus@samba.org>
To: Judith Lebzelter <judith@osdl.org>
Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: Undefined '.bus_to_virt', '.virt_to_bus' causes compile error on Powerpc 64-bit
Date: Tue, 3 Oct 2006 11:16:21 +1000 [thread overview]
Message-ID: <17697.47589.788457.877617@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20061002214954.GD665@shell0.pdx.osdl.net>
Judith,
> For the automated cross-compile builds at OSDL, powerpc 64-bit
> 'allmodconfig' is failing. The warnings/errors below appear in
> the 'modpost' stage of kernel compiles for 2.6.18 and -mm2 kernels.
virt_to_bus and bus_to_virt are old interfaces that have been
deprecated for, oh, at least 5 years now, and can't be implemented
sanely on machines with an IOMMU - which includes all 64-bit powerpc
machines.
Unless someone pops up and volunteers to fix those old drivers, which
is unlikely, the only solution is to fix the Kconfig files to prevent
them from being selected on platforms that don't have virt_to_bus and
bus_to_virt.
Paul.
prev parent reply other threads:[~2006-10-03 1:16 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-02 21:49 Undefined '.bus_to_virt', '.virt_to_bus' causes compile error on Powerpc 64-bit Judith Lebzelter
2006-10-02 23:44 ` Adrian Bunk
2006-10-03 1:22 ` [2.6 patch] mark virt_to_bus/bus_to_virt as __deprecated on i386 Adrian Bunk
2006-10-03 1:48 ` Nicholas Miell
2006-10-03 1:58 ` Adrian Bunk
2006-10-03 2:55 ` Nicholas Miell
2006-10-03 4:37 ` Benjamin Herrenschmidt
2006-10-03 11:29 ` Alan Cox
2006-10-03 4:37 ` Benjamin Herrenschmidt
2006-10-03 4:44 ` Andrew Morton
2006-10-03 4:49 ` Benjamin Herrenschmidt
2006-10-03 4:55 ` Andrew Morton
2006-10-03 5:07 ` Adrian Bunk
2006-10-03 9:36 ` Stefan Richter
2006-10-03 11:24 ` Alan Cox
2006-10-03 20:58 ` Undefined '.bus_to_virt', '.virt_to_bus' causes compile error on Powerpc 64-bit Guennadi Liakhovetski
2006-10-03 1:05 ` Benjamin Herrenschmidt
2006-10-03 11:23 ` Alan Cox
2006-10-03 1:16 ` Paul Mackerras [this message]
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