From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH] scsi: prevent ISA driver from building on PPC32
Date: Mon, 23 Jul 2018 01:18:11 -0700
Message-ID: <20180723081811.GA27025@infradead.org>
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To: Randy Dunlap <rdunlap@infradead.org>
Cc: PowerPC <linuxppc-dev@lists.ozlabs.org>, "Martin K. Petersen" <martin.petersen@oracle.com>, linux-scsi <linux-scsi@vger.kernel.org>, "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
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On Sat, Jul 21, 2018 at 12:58:21PM -0700, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@infradead.org>
> 
> Prevent drivers from building on PPC32 if they use isa_bus_to_virt(),
> isa_virt_to_bus(), or isa_page_to_bus(), which are not available and
> thus cause build errors.

Please don't introduce weird arch dependencies, and add a
CONFIG_ISA_VIRT_TO_BUS instead.