From mboxrd@z Thu Jan  1 00:00:00 1970
From: 'Christoph Hellwig' <hch@lst.de>
Date: Fri, 09 Aug 2019 14:45:31 +0000
Subject: Re: remove sn2, hpsim and ia64 machvecs
Message-Id: <20190809144531.GA10398@lst.de>
List-Id: <linux-ia64.vger.kernel.org>
References: <20190807133049.20893-1-hch@lst.de> <3908561D78D1C84285E8C5FCA982C28F7F41388B@ORSMSX115.amr.corp.intel.com> <3908561D78D1C84285E8C5FCA982C28F7F4143CB@ORSMSX115.amr.corp.intel.com> <20190807230737.GA11458@agluck-desk2.amr.corp.intel.com> <20190808065123.GA29146@lst.de> <20190808180129.GA18553@agluck-desk2.amr.corp.intel.com>
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To: "Luck, Tony" <tony.luck@intel.com>
Cc: 'Christoph Hellwig' <hch@lst.de>, "Yu, Fenghua" <fenghua.yu@intel.com>, 'Arnd Bergmann' <arnd@arndb.de>, 'Greg Kroah-Hartman' <gregkh@linuxfoundation.org>, "'linux-ia64@vger.kernel.org'" <linux-ia64@vger.kernel.org>, "'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>

On Thu, Aug 08, 2019 at 11:01:30AM -0700, Luck, Tony wrote:
> So most configs now build, and the generic one boots on my Tukwila system.
> 
> But a config based on arch/ia64/configs/zx1_defconfig gets a bunch
> of build errors from different files complaining about 'max_mapnr'
> 
> arch/ia64/mm/init.c:198:8: error: 'max_mapnr' undeclared (first use in this function) 
> ./include/linux/dma-mapping.h:359:6: error: 'max_mapnr' undeclared (first use in this function)
> kernel/dma/mapping.c:126:8: error: 'max_mapnr' undeclared (first use in this function)
> kernel/dma/mapping.c:181:8: error: 'max_mapnr' undeclared (first use in this function)
> mm/internal.h:393:8: error: 'max_mapnr' undeclared (first use in this function)

Looks like we somehow lost the indirect mm.h include for those builds,
I'll take a look at fixing this up.