Commit Graph

334 Commits

Author SHA1 Message Date
Philipp Zabel
6556f7f82b drm: imx: Move imx-drm driver out of staging
The imx-drm driver was put into staging mostly for the following reasons,
all of which have been addressed or superseded:
 - convert the irq driver to use linear irq domains
 - work out the device tree bindings, this lead to the common of_graph
   bindings being used
 - factor out common helper functions, this mostly resulted in the
   component framework and drm of_graph helpers.

Before adding new fixes, and certainly before adding new features,
move it into its proper place below drivers/gpu/drm.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-26 09:40:39 +10:00
Mark Einon
e603984823 staging: et131x: Remove et131x driver from drivers/staging
The current version of the et131x driver has been accepted into the
main tree at /drivers/net/ethernet, so it can now be removed from
staging.

The MAINTAINERS entry has not been touched here, as the patch to
add the driver to drivers/net modifies it correctly.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-03 13:55:14 -07:00
Larry Finger
f823182bc2 staging: r8192ee: Remove staging driver
A new version of this driver has been merged into the regular wireless tree.
The staging version is hereby removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-30 09:24:31 -07:00
Greg Kroah-Hartman
76272ab3f3 staging: rtl8821ae: remove driver
There is now a "real" driver in the wireless tree for this hardware
device, so remove the staging driver as it is no longer needed.

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29 18:02:19 -04:00
Eli Billauer
7051924f77 xillybus: Move out of staging
This driver has been functional and stable throughout the year it has spent
in the staging area. It has been patched for minor bugs, coding style issues
and improvements during this period.

This is the second submission of this move-out, after making several style
improvements, as suggested by Dan Carpenter.

Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 23:44:16 -07:00
Greg Kroah-Hartman
e9723bf2ad Merge 3.17-rc3 into staging-next
We want the staging bugfixes in this branch as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-31 20:53:12 -07:00
Greg Kroah-Hartman
a4102f90e8 staging: remove nokia_hp4p driver
The Bluetooth maintainer has been complaining about it for a while, and
I shouldn't have merged it over his objections.  There also has been no
real work done on it at all to get it out of the staging tree, so just
delete the code for now.

If someone wants to get this fixed up properly, feel free to revert this
commit and send the revert, along with cleanups and we will be glad to
consider it.

Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>,
Cc: Miguel Oliveira <cmroliv@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-30 13:10:25 -07:00
Valentina Manea
96c2737716 usbip: move usbip kernel code out of staging
At this point, USB/IP kernel code is fully functional
and can be moved out of staging.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-25 10:40:06 -07:00
Kristina Martšenko
c22487b828 staging: sep: remove driver
Looks like no one's working on the driver anymore, so remove it for now.
If someone wants to work on moving it out of staging, this commit can be
reverted.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Mark A. Allyn <mark.a.allyn@intel.com>
Cc: Jayant Mangalampalli <jayant.mangalampalli@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-27 13:17:47 -07:00
Kristina Martšenko
ad8c12eea0 staging: silicom: remove driver
The driver hasn't been cleaned up and it doesn't look like anyone is
working on it anymore (including the original author). So remove it.
If someone wants to work on cleaning the driver up and moving it out of
staging, this commit can be reverted.

In addition, since this removes the CONFIG_NET_VENDOR_SILICOM config
symbol, remove the symbol from all defconfig files that reference it.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Daniel Cotey <puff65537@bansheeslibrary.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-27 11:24:37 -07:00
Kristina Martšenko
0be013e3dc staging: quickstart: remove driver
The driver hasn't been cleaned up and it doesn't look like anyone is
working on it anymore (including the original author). So remove the
driver from the kernel. If someone wants to work on cleaning it up and
moving it out of staging, this commit can be reverted.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Angelo Arrifano <miknix@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-24 15:00:07 -07:00
Kristina Martšenko
21ad9f74c6 staging: phison: remove driver
The driver hasn't been cleaned up and it doesn't look like anyone is
working on it anymore (including the original author). So remove the
driver from the kernel. If someone wants to work on cleaning it up and
moving it out of staging, this commit can be reverted.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Evan Ko <evan_ko@phison.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-24 15:00:04 -07:00
Kristina Martšenko
16fae05207 staging: keucr: remove driver
The driver hasn't been fully cleaned up and it doesn't look like anyone
is working on it anymore (including the original author). So remove the
driver and all references to it. If someone wants to finish cleaning
the driver up and moving it out of staging, this commit can be reverted.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Cho, Yu-Chen <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-23 19:01:36 -07:00
Kristina Martšenko
0d317b91d6 staging: frontier: remove driver
The driver hasn't been cleaned up and it doesn't look like anyone is
working on it anymore (including the original author). So remove the
driver from the kernel. If someone wants to work on cleaning it up and
moving it out of staging, this commit can be reverted.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: David Täht <d@teklibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-23 18:48:11 -07:00
Kristina Martšenko
53b903093b staging: ced1401: remove driver
The state of the driver hasn't improved much since it was added to
staging, and no one with the hardware is currently working on it, so
remove it. This commit can be reverted if someone wants to clean the
driver up and move it to its proper place in the kernel.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Greg Smith <greg@ced.co.uk>
Cc: Alois Schlögl <alois.schloegl@ist.ac.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-23 18:44:51 -07:00
Kristina Martšenko
f190be7f39 staging: tidspbridge: remove driver
The driver has been broken and disabled for several kernel versions now.
It doesn't have a maintainer anymore, and most of the people who've
worked on it have moved on. There's also still a long list of issues in
the TODO file before it can be moved out of staging. Until someone can
put in the work to make the driver work again and move it out of
staging, remove it from the kernel.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Omar Ramirez Luna <omar.ramirez@copitl.com>
Cc: Suman Anna <s-anna@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-15 21:01:05 -07:00
Kristina Martšenko
14b596c9d8 staging: cxt1e1: remove driver
Remove the driver as it hasn't been cleaned up and it doesn't look like
anyone is going to work on it anymore. This can be reverted if someone
wants to work to fix the remaining issues the driver has.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Bob Beers <bob.beers@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-01 09:05:33 -07:00
Kristina Martšenko
19b1e7695b staging: dgrp: remove driver
Remove the driver as it hasn't been cleaned up and it doesn't look like
anyone is going to work on it anymore. This can be reverted if someone
wants to work to fix the remaining issues the driver has.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Bill Pemberton <wfp5p@worldbroken.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-30 23:23:41 -07:00
Kristina Martšenko
929b2d483d staging: serqt_usb2: remove driver
Remove the driver as it hasn't been cleaned up and it doesn't look like
anyone is going to work on it anymore. This can be reverted if someone
wants to work to fix the remaining issues the driver has.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-30 23:19:19 -07:00
Kristina Martšenko
de1c4400bf staging: wlags49_h2(5): remove driver
Remove the driver as it hasn't been cleaned up and it doesn't look like
anyone is going to work on it anymore.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Henk de Groot <pe1dnn@amsat.org>
Cc: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-30 23:18:34 -07:00
Kristina Martšenko
ac4ddad67a staging: winbond: remove driver
The driver hasn't been cleaned up and nobody is working to do so, so
remove it.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-28 15:37:02 -07:00
Kristina Martšenko
5c0ed8cdc4 staging: crystalhd: remove driver
The driver hasn't had significant work done on it for a long time.
Broadcom has EOLed the hardware and is no longer selling it. There are
probably very few people still using it. So remove the driver.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Naren Sankar <nsankar@broadcom.com>
Cc: Jarod Wilson <jarod@wilsonet.com>
Cc: Scott Davilla <davilla@4pi.com>
Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-20 08:15:08 -07:00
Magnus Damm
382063d91e staging: board: Initial board staging support
Add staging board base support to allow continuous upstream
in-tree development and integration of platform devices.

Helps developers integrate devices as platform devices for
device drivers that only provide platform device bindings.
This in turn allows for incremental development of both
hardware feature support and DT binding work in parallel.

Two separate pieces of board staging functionality is
provided to ease per-board staging board support:
 - The board_staging() macro allows easy per-board callbacks
 - The board_staging_dt_node_available() provides DT node checking

Tested on the KZM9D board with the emxx_udc staging driver.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-19 15:08:20 -07:00
Magnus Damm
33aa8d45a4 staging: emxx_udc: Add Emma Mobile USB Gadget driver
Add the emxx_udc driver to staging based on an old linux-2.6.35.7
android tree. The driver has been brushed up slightly to complile
but it is still in great need of cleanup.

At this point DT bindings are clearly lacking and I doubt that the
driver even can run with multiple instances (global variables, hurray!).

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-19 14:42:17 -07:00
Greg Kroah-Hartman
00d8521dcd staging: remove rts5139 driver code
Roger writes:
	Since all patches have been applied and the device is now
	supported by the new driver, would you remove the former staging
	one at drivers/staging/rts5139?

Cc: Roger Tseng <rogerable@realtek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23 20:46:41 +09:00
Larry Finger
0629f3b8c3 staging: r8192ee: Turn on build of the new driver
In addition, this commit contains a TODO file for this driver

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23 11:33:56 +09:00
Greg Kroah-Hartman
a7fa5e4e03 staging: remove sbe-2t3e3 driver.
It never really got cleaned up properly, and no one is working on it, so
remove it.  If someone wants to pick it up, this can be easily reverted.

Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-25 13:59:57 -07:00
Greg Kroah-Hartman
3eb9992caf Merge 3.15-rc2 into staging-next
This resolves a bunch of merge errors with other fixes that are already
in Linus's tree.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-22 10:08:40 -07:00
Jason Cooper
c2c7426bfc staging: crypto: skein: allow building statically
These are the minimum changes required to get the code to build
statically in the kernel.  It's necessary to do this first so that we
can empirically determine that future cleanup patches aren't changing
the generated object code.

Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-18 15:46:48 -07:00
Greg Kroah-Hartman
5ed0a8e667 staging: delete rtl8187se wireless driver
There is a "real" driver for this hardware now in drivers/net/ so remove
the staging version as it's not needed anymore.

Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16 11:35:54 -07:00
Larry Finger
9176303c40 staging: r8723au: Turn on build of new driver
This commit also creates a TODO file.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-05 14:53:46 -07:00
Ken Cox
9d9baadd40 staging: visorutil driver to provide common functionality to other s-Par drivers
The visorutil module is a support library required by all other s-Par
driver modules. Among its features it abstracts reading, writing, and
manipulating a block of memory.

Signed-off-by: Ken Cox <jkc@redhat.com>
Cc: Ben Romer <sparmaintainer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-04 16:52:12 -08:00
Greg Kroah-Hartman
aa98b772b7 staging: sb105x: delete the driver
It's been marked BROKEN for over a year, and no one has stepped up to do
anything with the code, and no one has complained.  So just delete it.
If someone wants to fix it up and merge it "properly", they can revert
this commit.

Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-28 14:21:58 -08:00
Greg Kroah-Hartman
6e2055a9e5 staging: echo: move to drivers/misc/
The code is clean, there are users of it, so it doesn't belong in
staging anymore, move it to drivers/misc/.

Cc: Steve Underwood <steveu@coppice.org>
Cc: David Rowe <david@rowetel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-28 14:08:42 -08:00
Greg Kroah-Hartman
dc93c85235 staging: sm7xxfb: remove driver
It hasn't been worked on in a very long time, and the original author
has moved on to a different product as this one is no longer being made.
So remove the driver.  If someone wants to resurect it, and clean it up
and get it merged to the "proper" part of the kernel, this commit can be
reverted.

Cc: Teddy Wang <teddy.wang@siliconmotion.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-28 14:04:28 -08:00
Pavel Machek
91eef3e2fe staging/bluetooth: Add hci_h4p driver
Add hci_h4p bluetooth driver to staging tree. This device is used
for example on Nokia N900 cell phone.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Thanks-to: Sebastian Reichel <sre@debian.org>
Thanks-to: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-07 10:13:53 -08:00
Insop Song
e7185c6958 staging: fpgaboot: Xilinx FPGA firmware download driver
This driver downloads Xilinx FPGA firmware using gpio pins.
It loads Xilinx FPGA bitstream format firmware image and
program the Xilinx FPGA using SelectMAP (parallel) mode.

Signed-off-by: Insop Song <insop.song@gainspeed.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-07 10:08:36 -08:00
Linus Torvalds
fea8893da7 Staging wireless driver for 3.14-rc1
Here's a single staging driver for a wireless chipset that has shown up
 in the SteamBox hardware.  It is merged separately from the "main"
 staging pull request to sync up with the wireless api changes that came
 in from the networking tree.
 
 It's self-contained and works for me and others.  Larry will be
 replacing it with a "real" driver for 3.15, but for now this one is
 needed.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull rtl8812ae staging wireless driver from Greg KH:
 "Here's a single staging driver for a wireless chipset that has shown
  up in the SteamBox hardware.  It is merged separately from the "main"
  staging pull request to sync up with the wireless api changes that
  came in from the networking tree.

  It's self-contained and works for me and others.  Larry will be
  replacing it with a "real" driver for 3.15, but for now this one is
  needed"

* tag 'staging-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8821ae: Enable build by reverting BROKEN marking
  staging: r8821ae: Fix build problems
  Staging: rtl8812ae: disable due to build errors
  Staging: rtl8821ae: add TODO file
  Staging: rtl8821ae: removed unused functions and variables
  Staging: rtl8821ae: rc.c: fix up function prototypes
  Staging: rtl8812ae: Add Realtek 8821 PCI WIFI driver
2014-02-01 10:29:59 -08:00
Minchan Kim
cd67e10ac6 zram: promote zram from staging
Zram has lived in staging for a LONG LONG time and have been
fixed/improved by many contributors so code is clean and stable now.  Of
course, there are lots of product using zram in real practice.

The major TV companys have used zram as swap since two years ago and
recently our production team released android smart phone with zram
which is used as swap, too and recently Android Kitkat start to use zram
for small memory smart phone.  And there was a report Google released
their ChromeOS with zram, too and cyanogenmod have been used zram long
time ago.  And I heard some disto have used zram block device for tmpfs.
In addition, I saw many report from many other peoples.  For example,
Lubuntu start to use it.

The benefit of zram is very clear.  With my experience, one of the
benefit was to remove jitter of video application with backgroud memory
pressure.  It would be effect of efficient memory usage by compression
but more issue is whether swap is there or not in the system.  Recent
mobile platforms have used JAVA so there are many anonymous pages.  But
embedded system normally are reluctant to use eMMC or SDCard as swap
because there is wear-leveling and latency issues so if we do not use
swap, it means we can't reclaim anoymous pages and at last, we could
encounter OOM kill.  :(

Although we have real storage as swap, it was a problem, too.  Because
it sometime ends up making system very unresponsible caused by slow swap
storage performance.

Quote from Luigi on Google
 "Since Chrome OS was mentioned: the main reason why we don't use swap
  to a disk (rotating or SSD) is because it doesn't degrade gracefully
  and leads to a bad interactive experience.  Generally we prefer to
  manage RAM at a higher level, by transparently killing and restarting
  processes.  But we noticed that zram is fast enough to be competitive
  with the latter, and it lets us make more efficient use of the
  available RAM.  " and he announced.
http://www.spinics.net/lists/linux-mm/msg57717.html

Other uses case is to use zram for block device.  Zram is block device
so anyone can format the block device and mount on it so some guys on
the internet start zram as /var/tmp.
http://forums.gentoo.org/viewtopic-t-838198-start-0.html

Let's promote zram and enhance/maintain it instead of removing.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-30 16:56:55 -08:00
Minchan Kim
bcf1647d08 zsmalloc: move it under mm
This patch moves zsmalloc under mm directory.

Before that, description will explain why we have needed custom
allocator.

Zsmalloc is a new slab-based memory allocator for storing compressed
pages.  It is designed for low fragmentation and high allocation success
rate on large object, but <= PAGE_SIZE allocations.

zsmalloc differs from the kernel slab allocator in two primary ways to
achieve these design goals.

zsmalloc never requires high order page allocations to back slabs, or
"size classes" in zsmalloc terms.  Instead it allows multiple
single-order pages to be stitched together into a "zspage" which backs
the slab.  This allows for higher allocation success rate under memory
pressure.

Also, zsmalloc allows objects to span page boundaries within the zspage.
This allows for lower fragmentation than could be had with the kernel
slab allocator for objects between PAGE_SIZE/2 and PAGE_SIZE.  With the
kernel slab allocator, if a page compresses to 60% of it original size,
the memory savings gained through compression is lost in fragmentation
because another object of the same size can't be stored in the leftover
space.

This ability to span pages results in zsmalloc allocations not being
directly addressable by the user.  The user is given an
non-dereferencable handle in response to an allocation request.  That
handle must be mapped, using zs_map_object(), which returns a pointer to
the mapped region that can be used.  The mapping is necessary since the
object data may reside in two different noncontigious pages.

The zsmalloc fulfills the allocation needs for zram perfectly

[sjenning@linux.vnet.ibm.com: borrow Seth's quote]
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-30 16:56:55 -08:00
Greg Kroah-Hartman
3c05bedb5f Staging: rtl8812ae: Add Realtek 8821 PCI WIFI driver
This comes directly from the Realtek tarball, filename:
	wifi_driver_8821ae_0018.1129.2013.tar.gz

I mushed the three modules (btcoexist, rtlwifi and rtl8821ae) together
into one, in order to make it all build as one stand-alone module.
After the btcoexist driver gets merged upstream, I'll pull it out of
here, and will continue to work on removing this version of rtlwifi in
order to use the in-kernel one.

Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-23 09:37:23 -08:00
Paul Zimmerman
197ba5f406 Move DWC2 driver out of staging
The DWC2 driver should now be in good enough shape to move out of
staging. I have stress tested it overnight on RPI running mass
storage and Ethernet transfers in parallel, and for several days
on our proprietary PCI-based platform.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-13 14:44:01 -08:00
Greg Kroah-Hartman
99ec297ad6 staging: btmtk_usb: remove driver
No one seems to be working on it anymore, and it really should be merged
into the already-existing btusb driver.  Also, there is not any proper
author attribution on the code (it was copied from the in-kernel
driver...)

If someone wants to pick this back up, we can easily revert this, but
for now, delete the driver.

Cc: Yu-Chen, Cho <acho@suse.com>
Cc: Jay Hung <jay.hung@mediatek.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-08 17:33:16 -08:00
Micky Ching
fa590c222f staging: rts5208: add support for rts5208 and rts5288
There are still many rts5208/5288 card readers being used, but no
drivers are supported them in kernel now. This driver can make a
great convenience for people who use them.

Many other rts-series card reader are supported by mfd driver, but due
to much difference with others, rts5208/5288 can not add into mfd driver
pretty now, so we provide a separated driver here to support the device.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-25 12:44:37 -08:00
Greg Kroah-Hartman
365aa51e11 staging: ktap: remove code from tree
ktap should be merged through the "proper" place in the kernel tree, in
the perf tool, not as a stand-alone kernel module in staging.  So remove
it from here for now so that it can be merged correctly later.

Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-27 14:05:02 -07:00
Jovi Zhangwei
c63a164271 staging: ktap: add to the kernel tree
This patch introduces ktap to staging tree.

ktap is a new script-based dynamic tracing tool for Linux,
it uses a scripting language and lets users trace the
Linux kernel dynamically. ktap is designed to give
operational insights with interoperability that allow
users to tune, troubleshoot and extend kernel and application.
It's similar with Linux Systemtap and Solaris Dtrace.

ktap have different design principles from Linux mainstream
dynamic tracing language in that it's based on bytecode,
so it doesn't depend upon GCC, doesn't require compiling
kernel module for each script, safe to use in production
environment, fulfilling the embedded ecosystem's tracing needs.

See ktap tutorial for more information:
    http://www.ktap.org/doc/tutorial.html

The merit of putting this software in staging tree is
to make it more possible to get feedback from users
and thus polish the code.

Signed-off-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-11 10:58:32 -07:00
Kamlakant Patel
d974ce4f3b Staging: MTD: Micron SPINAND Driver support
This patch adds support for Micron SPINAND via MTD.

Signed-off-by: Mona Anonuevo <manonuevo@micron.com>
Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 13:53:48 -07:00
Lidza Louina
b3cc872c1b staging: dgap: adds driver to kernel build
This patch adds the dgap driver to the kernel build process.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-22 10:47:53 -07:00
Larry Finger
b63c05394f staging: r8188eu: Turn on build of new driver
This commit modifies drivers/staging/Makefile, and adds the
drivers/staging/rtl8188eu/Makefile.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-22 10:20:31 -07:00
Lidza Louina
53c55fa228 staging: dgnc: add driver to kernel build
This patch adds the dgnc driver to the kernel build process.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-21 09:40:51 -07:00