linux-kernel - Re: [PATCH] iomap: hide iomap_sector with CONFIG

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Date:   Thu, 18 Jul 2019 22:58:55 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     "Darrick J. Wong" <darrick.wong@...cle.com>,
        Christoph Hellwig <hch@....de>, Arnd Bergmann <arnd@...db.de>,
        Christoph Hellwig <hch@...radead.org>,
        linux-xfs <linux-xfs@...r.kernel.org>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>,
        Andreas Gruenbacher <agruenba@...hat.com>,
        Hannes Reinecke <hare@...e.com>,
        Souptick Joarder <jrdr.linux@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jani Nikula <jani.nikula@...el.com>
Subject: Re: [PATCH] iomap: hide iomap_sector with CONFIG_BLOCK=n

On Fri, Jul 19, 2019 at 11:19:15AM +0900, Masahiro Yamada wrote:
> I started to think
> compiling all headers is more painful than useful.
> 
> 
> MW is closing, so I am thinking of disabling it for now
> to take time to re-think.

For now this seems like the best idea.  In the long run maybe we can
limit the tests to certain configs, e.g.


headers-$(CONFIG_IOMAP)		+= iomap.h

in include/linux/Kbuild

and base it off that?