Re: [PATCH] build: sync Kconfig with Linux v4.17

From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>, dougtrav@icloud.com
Cc: Stefano Stabellini <sstabellini@kernel.org>,
	Wei Liu <wei.liu2@citrix.com>,
	George Dunlap <George.Dunlap@eu.citrix.com>,
	Ian Jackson <Ian.Jackson@eu.citrix.com>,
	Doug Goldstein <cardoe@cardoe.com>, Tim Deegan <tim@xen.org>,
	Julien Grall <julien.grall@arm.com>,
	xen-devel <xen-devel@lists.xenproject.org>,
	Roger Pau Monne <roger.pau@citrix.com>
Subject: Re: [PATCH] build: sync Kconfig with Linux v4.17
Date: Thu, 21 Jun 2018 16:28:47 +0800	[thread overview]
Message-ID: <8c868712-81c0-86ba-038c-710ca6710173@citrix.com> (raw)
In-Reply-To: <5B2B5E2602000078001CC9AA@prv1-mh.provo.novell.com>

On 21/06/18 16:13, Jan Beulich wrote:
>>>> On 21.06.18 at 04:10, <dougtrav@icloud.com> wrote:
>> From: Doug Goldstein <cardoe@cardoe.com>
>>
>> From: Doug Goldstein <cardoe@cardoe.com>
>>
>> Import the following files and directories from the Linux v4.17 tag
>> (commit id 29dcea88779c856c7dc92040a0c01233263101d4):
>> - scripts/kconfig/ -> xen/tools/kconfig/
>> - scripts/Makefile.host -> xen/tools/kconfig/Makefile.host
>> - Documentation/kbuild/kconfig{,-language}.txt ->
>>   docs/misc/kconfig{-language}.txt
>> - include/linux/kconfig.h -> xen/include/xen/kconfig.h
>>
>> Pulled in parts of scripts/Makefile.lib into
>> xen/tools/kconfig/Makefile.kconfig
>>
>> Side effect of this change is that flex and bison are required to build
>> Kconfig. Linux has switched from shipping the pre-generated files to
>> always generating them with flex and bison.
>>
>> Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
> What I'm missing (and what I think is a requirement for this to go in) is
> the "why" part: What do we gain from doing the update? Besides that
> I think that in general it would be better to pull in Linux commits one
> by one, rather than combining everything into a giant patch. That
> might even already address part of my question, as it could highlight
> bug fixes and/or enhancements which are of interest to us.

As a first pass, "because multiple people specifically asked about when
we were going to update the version of Kconfig".

Working patch by patch isn't feasible because of the renames.

~Andrew

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