linux-kernel - Re: remove sn2, hpsim and ia64 machvecs

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Message-ID: <20190809144531.GA10398@lst.de>
Date:   Fri, 9 Aug 2019 16:45:31 +0200
From:   'Christoph Hellwig' <hch@....de>
To:     "Luck, Tony" <tony.luck@...el.com>
Cc:     'Christoph Hellwig' <hch@....de>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        'Arnd Bergmann' <arnd@...db.de>,
        'Greg Kroah-Hartman' <gregkh@...uxfoundation.org>,
        "'linux-ia64@...r.kernel.org'" <linux-ia64@...r.kernel.org>,
        "'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>
Subject: Re: remove sn2, hpsim and ia64 machvecs

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.