Add a document for the macro language introduced to Kconfig.

The motivation of this work is to move the compiler option tests to
Kconfig from Makefile.  A number of kernel features require the
compiler support.  Enabling such features blindly in Kconfig ends up
with a lot of nasty build-time testing in Makefiles.  If a chosen
feature turns out unsupported by the compiler, what the build system
can do is either to disable it (silently!) or to forcibly break the
build, despite Kconfig has let the user to enable it.  By moving the
compiler capability tests to Kconfig, features unsupported by the
compiler will be hidden automatically.

This change was strongly prompted by Linus Torvalds.  You can find
his suggestions [1] [2] in ML.  The original idea was to add a new
attribute with 'option shell=...', but I found more generalized text
expansion would make Kconfig more powerful and lovely.  The basic
ideas are from Make, but there are some differences.

[1]: https://lkml.org/lkml/2016/12/9/577
[2]: https://lkml.org/lkml/2018/2/7/527Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: NKees Cook <keescook@chromium.org>
Reviewed-by: NRandy Dunlap <rdunlap@infradead.org>

The current hugetlbfs maintainer has not been active for more than a few
years.  I have been been active in this area for more than two years and
plan to remain active in the foreseeable future.

Also, update the hugetlbfs entry to include linux-mm mail list and
additional hugetlbfs related files.  hugetlb.c and hugetlb.h are not
100% hugetlbfs, but a majority of their content is hugetlbfs related.

Link: http://lkml.kernel.org/r/20180518225236.19079-1-mike.kravetz@oracle.comSigned-off-by: NMike Kravetz <mike.kravetz@oracle.com>
Acked-by: NNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: NVlastimil Babka <vbabka@suse.cz>
Acked-by: NMichal Hocko <mhocko@suse.com>
Cc: Nadia Yvette Chambers <nyc@holomorphy.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Eugene hasn't worked on wcn36xx for some time now.
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Luis hasn't worked on ath.ko for some time now.
Acked-by: NLuis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

I switched to use my codeaurora.org address.
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

A new patchwork project is created to track kselftest patches.  Update
the kselftest entry in the MAINTAINERS file adding 'Q:' entry:

  https://patchwork.kernel.org/project/linux-kselftest/list/

Link: http://lkml.kernel.org/r/20180515164427.12201-1-shuah@kernel.orgSigned-off-by: NShuah Khan (Samsung OSG) <shuah@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add I2C/SMBUS Driver entry for STM32 family from ST Microelectronics.
Signed-off-by: NPierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

Update email address in MAINTAINERS file due to IT infrastructure changes
at Samsung.

Link: http://lkml.kernel.org/r/20180501212815.25911-1-shuah@kernel.orgSigned-off-by: NShuah Khan (Samsung OSG) <shuah@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NTrond Myklebust <trond.myklebust@hammerspace.com>

Delete non-existent @mellanox.com addresses from MAINTAINERS file.
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Replace my old E-Mail address with a working one.
While at it, change the maintainance status to
'Odd Fixes'. I'm still around with some knowledge,
but don't actively maintain it anymore.
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

I managed to send some modpost patches to old addresses of both
Masahiro and Michal, and omitted linux-kbuild from cc, because my
tried and trusted scripts/get_maintainer wrapper failed me. Add the
modpost directory to the MAINTAINERS entry, and while at it make the
Makefile glob match scripts/Makefile itself, and add one matching the
Kbuild.include file as well.
Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

From now on, I'll start using my @kernel.org as my development e-mail.

As such, let's remove the entries that point to the old
mchehab@s-opensource.com at MAINTAINERS file.

For the files written with a copyright with mchehab@s-opensource,
let's keep Samsung on their names, using mchehab+samsung@kernel.org,
in order to keep pointing to my employer, with sponsors the work.

For the files written before I join Samsung (on July, 4 2013),
let's just use mchehab@kernel.org.

For bug reports, we can simply point to just kernel.org, as
this will reach my mchehab+samsung inbox anyway.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NBrian Warner <brian.warner@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>

Signed-off-by: NMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The AFFS filesystem is still in use by m68k community (Link #2), but as
there was no code activity and no maintainer, the filesystem appeared on
the list of candidates for staging/removal (Link #1).

I volunteer to act as a maintainer of AFFS to collect any fixes that
might show up and to guard fs/affs/ against another spring cleaning.

Link: https://lkml.kernel.org/r/20180425154602.GA8546@bombadil.infradead.org
Link: https://lkml.kernel.org/r/1613268.lKBQxPXt8J@merkaba
CC: Martin Steigerwald <martin@lichtvoll.de>
CC: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

"./scripts/get_maintainer.pl -f" does not actually show us David as the
maintainer of drivers/net directories such as team, bonding, phy or dsa.
Adding him in an M: entry of NETWORKING DRIVERS fixes this.
Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NHarald Freudenberger <freude@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

I am leaving Axis, so this address will bounce in the not too
distant future.

Fortunately, I will still be working with the community.
Signed-off-by: NNiklas Cassel <niklas.cassel@axis.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Update the email address for DMAengine maintainer
Signed-off-by: NVinod Koul <vkoul@kernel.org>

Since Michael had to step back, Coly has agreed to be the new
maintainer. Mark him as such.
Signed-off-by: NJens Axboe <axboe@kernel.dk>

Too much to do with other projects.  I've enjoyed working with everyone
here, and hope to occasionally contribute on bcache.
Signed-off-by: NMichael Lyle <mlyle@lyle.org>
Signed-off-by: NJens Axboe <axboe@kernel.dk>

The current mail address is rejected, last activity (with a different
address) in git-history is from 2012. Remove this.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
Acked-by: NJon Hunter <jonathanh@nvidia.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Most of the other cross-driver gfx infrastructure (dma_buf, dma_fence)
also gets cross posted to all the relevant gfx/memory lists. Doing the
same for ION means people won't miss relevant patches.

Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Acked-by: NLaura Abbott <labbott@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Soon I'll not be available by my Intel email address, so switching to my
personal email address instead.
Signed-off-by: NYehezkel Bernat <yehezkel.bernat@intel.com>
Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The idea behind using kernel@pengutronix.de (i.e. the mail alias for the
kernel people at Pengutronix) as email address was to have a backup when
a given developer is on vacation or run over by a bus. Make this more
explicit by adding the alias as reviewer and use the personal address
for Sascha and me.

Link: http://lkml.kernel.org/r/20180413083312.11213-1-u.kleine-koenig@pengutronix.deSigned-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Adding additional maintainers to libnvdimm related code and DAX.
Signed-off-by: NDave Jiang <dave.jiang@intel.com>
Acked-by: NRoss Zwisler <ross.zwisler@linux.intel.com>
Acked-by: NVishal Verma <vishal.l.verma@intel.com>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>

Networking docs changes go through the networking tree, so patch the
MAINTAINERS file to direct authors to the right place.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Update my e-mail address to a working address.
Signed-off-by: NChristoffer Dall <christoffer.dall@arm.com>
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>

There were some documentation locations that irda was mentioned, as well
as an old MAINTAINERS entry and the networking sysctl entries.  Clean
these all out as this stuff really is finally gone.
Reported-by: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: NJerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: NGuenter Roeck <linux@roeck-us.net>
Acked-by: NJimmy Vance <jimmy.vance@hpe.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

There is alreay an entry for all the backends, but those entries do
not cover all the fsnotify files.
Signed-off-by: NAmir Goldstein <amir73il@gmail.com>
Signed-off-by: NJan Kara <jack@suse.cz>

Intentionally missing i2c-riic here, Chris Brandt will add himself for
that one later.
Signed-off-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

The number of I2C host controller drivers keeps increasing, and although
I had some success acquiring specific driver maintainers, my bandwidth
is by far not enough to act as a fallback for the rest of the drivers.
To reflect this status-quo in MAINTAINERS, add a separate entry for I2C
host drivers, let the I2C list (= community) be the contact point, and
mark this section as "Odd fixes".
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
Reviewed-by: NSimon Horman <horms+renesas@verge.net.au>

Adaptec is now part of Microsemi.

Commit 2a81ffdd ("MAINTAINERS: Update email address for aacraid")
updated only one of the driver maintainer addresses.

Update the other two sections as the aacraid@adaptec.com address
bounces.

Link: http://lkml.kernel.org/r/1522103936.12357.27.camel@perches.comSigned-off-by: NJoe Perches <joe@perches.com>
Cc: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Link: http://lkml.kernel.org/r/1522958149-6157-1-git-send-email-alex.bou9@gmail.comSigned-off-by: NAlexandre Bounine <alex.bou9@gmail.com>
Reviewed-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Barry Wood <barry.wood@idt.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Update the documentation for HMM to fix minor typos and phrasing to be a
bit more readable.

Link: http://lkml.kernel.org/r/20180323005527.758-2-jglisse@redhat.comSigned-off-by: NRalph Campbell <rcampbell@nvidia.com>
Signed-off-by: NJérôme Glisse <jglisse@redhat.com>
Cc: Stephen  Bates <sbates@raithlin.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Evgeny Baskakov <ebaskakov@nvidia.com>
Cc: Mark Hairgrove <mhairgrove@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

I am interested in all ASPEED drivers, and the previous match wasn't
grabbing files in nested directories. Use N instead.

Add the arm kernel mailing list so that patches get reviewed there, and
the linux-aspeed list which exists only so I can use patchwork to track
patches.

Add Andrew as a reviewer, because he is involved in reviewing ASPEED
stuff.
Signed-off-by: NJoel Stanley <joel@jms.id.au>
Acked-by: NAndrew Jeffery <andrew@aj.id.au>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The linux-oxnas migrates from tuxfamily to groups.io for a simpler
administration and maintainance.
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Now that there are no users of custom Atmel platform data, and everyone
has switched to the generic device properties, we can remove support for
the platform data.
Acked-by: NNick Dyer <nick@shmanahar.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NBenson Leung <bleung@chromium.org>

The linux.vnet.ibm.com domain will be discontinued end of 2018.
Instead the new linux.ibm.com domain is already active.

Reflect this by changing the email addresses of maintainers active in
the s390 area accordingly.
Acked-by: NBenjamin Block <bblock@linux.ibm.com>
Acked-by: NDong Jia Shi <bjsdjshi@linux.ibm.com>
Acked-by: NHalil Pasic <pasic@linux.ibm.com>
Acked-by: NJan Hoeppner <hoeppner@linux.ibm.com>
Acked-by: NJanosch Frank <frankja@linux.ibm.com>
Acked-by: NJulian Wiedmann <jwi@linux.ibm.com>
Acked-by: NPeter Oberparleiter <oberpar@linux.ibm.com>
Acked-by: NSebastian Ott <sebott@linux.ibm.com>
Acked-by: NStefan Haberland <sth@linux.ibm.com>
Acked-by: NSteffen Maier <maier@linux.ibm.com>
Acked-by: NUrsula Braun <ubraun@linux.ibm.com>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>