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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:21:43 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:21:43 -0400
commit9c0ece069b32e8e122aea71aa47181c10eb85ba7 (patch)
treeaa6db6433ec6b0b933d7840f8e203cba10e20a6c
parent15385dfe7e0fa6866b204dd0d14aec2cc48fc0a7 (diff)
Get rid of Documentation/feature-removal.txt
This file has turned out to be a pure write-only file that causes merge conflicts and has no actual redeeming features. There is never any reason to add stuff to this idiotic file. Either something isn't getting used, and you should just remove it, or there is no excuse for removing it in the first place. Just stop the idiocy. It has also been the excuse for just plain bad behavior ("Hey, I don't like xyz, so let's mark it for removal" followed by "Hey, look, it been in feature-removal.txt for six months now, so we should remove it"). The recent bogus setitimer() ABI change request was just the most recent example of pointless and incorrect mental masturbation involving this file, and I'm tired of the silly and pointless conflicts in the file. This removal was discussed during the recent kernel summit, and while Steven Rostedt suggested we should just enter the file itself in the feature-removal schedule (to see if anybody who edits the file actually looks at it), that's cute but non-productive. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--Documentation/feature-removal-schedule.txt586
1 files changed, 0 insertions, 586 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
deleted file mode 100644
index 72bab3fe428f..000000000000
--- a/Documentation/feature-removal-schedule.txt
+++ /dev/null
@@ -1,586 +0,0 @@
1The following is a list of files and features that are going to be
2removed in the kernel source tree. Every entry should contain what
3exactly is going away, why it is happening, and who is going to be doing
4the work. When the feature is removed from the kernel, it should also
5be removed from this file. The suggested deprecation period is 3 releases.
6
7---------------------------
8
9What: ddebug_query="query" boot cmdline param
10When: v3.8
11Why: obsoleted by dyndbg="query" and module.dyndbg="query"
12Who: Jim Cromie <jim.cromie@gmail.com>, Jason Baron <jbaron@redhat.com>
13
14---------------------------
15
16What: /proc/sys/vm/nr_pdflush_threads
17When: 2012
18Why: Since pdflush is deprecated, the interface exported in /proc/sys/vm/
19 should be removed.
20Who: Wanpeng Li <liwp@linux.vnet.ibm.com>
21
22---------------------------
23
24What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle
25When: 2012
26Why: This optional sub-feature of APM is of dubious reliability,
27 and ancient APM laptops are likely better served by calling HLT.
28 Deleting CONFIG_APM_CPU_IDLE allows x86 to stop exporting
29 the pm_idle function pointer to modules.
30Who: Len Brown <len.brown@intel.com>
31
32----------------------------
33
34What: x86_32 "no-hlt" cmdline param
35When: 2012
36Why: remove a branch from idle path, simplify code used by everybody.
37 This option disabled the use of HLT in idle and machine_halt()
38 for hardware that was flakey 15-years ago. Today we have
39 "idle=poll" that removed HLT from idle, and so if such a machine
40 is still running the upstream kernel, "idle=poll" is likely sufficient.
41Who: Len Brown <len.brown@intel.com>
42
43----------------------------
44
45What: x86 "idle=mwait" cmdline param
46When: 2012
47Why: simplify x86 idle code
48Who: Len Brown <len.brown@intel.com>
49
50----------------------------
51
52What: PRISM54
53When: 2.6.34
54
55Why: prism54 FullMAC PCI / Cardbus devices used to be supported only by the
56 prism54 wireless driver. After Intersil stopped selling these
57 devices in preference for the newer more flexible SoftMAC devices
58 a SoftMAC device driver was required and prism54 did not support
59 them. The p54pci driver now exists and has been present in the kernel for
60 a while. This driver supports both SoftMAC devices and FullMAC devices.
61 The main difference between these devices was the amount of memory which
62 could be used for the firmware. The SoftMAC devices support a smaller
63 amount of memory. Because of this the SoftMAC firmware fits into FullMAC
64 devices's memory. p54pci supports not only PCI / Cardbus but also USB
65 and SPI. Since p54pci supports all devices prism54 supports
66 you will have a conflict. I'm not quite sure how distributions are
67 handling this conflict right now. prism54 was kept around due to
68 claims users may experience issues when using the SoftMAC driver.
69 Time has passed users have not reported issues. If you use prism54
70 and for whatever reason you cannot use p54pci please let us know!
71 E-mail us at: linux-wireless@vger.kernel.org
72
73 For more information see the p54 wiki page:
74
75 http://wireless.kernel.org/en/users/Drivers/p54
76
77Who: Luis R. Rodriguez <lrodriguez@atheros.com>
78
79---------------------------
80
81What: The ieee80211_regdom module parameter
82When: March 2010 / desktop catchup
83
84Why: This was inherited by the CONFIG_WIRELESS_OLD_REGULATORY code,
85 and currently serves as an option for users to define an
86 ISO / IEC 3166 alpha2 code for the country they are currently
87 present in. Although there are userspace API replacements for this
88 through nl80211 distributions haven't yet caught up with implementing
89 decent alternatives through standard GUIs. Although available as an
90 option through iw or wpa_supplicant its just a matter of time before
91 distributions pick up good GUI options for this. The ideal solution
92 would actually consist of intelligent designs which would do this for
93 the user automatically even when travelling through different countries.
94 Until then we leave this module parameter as a compromise.
95
96 When userspace improves with reasonable widely-available alternatives for
97 this we will no longer need this module parameter. This entry hopes that
98 by the super-futuristically looking date of "March 2010" we will have
99 such replacements widely available.
100
101Who: Luis R. Rodriguez <lrodriguez@atheros.com>
102
103---------------------------
104
105What: dev->power.power_state
106When: July 2007
107Why: Broken design for runtime control over driver power states, confusing
108 driver-internal runtime power management with: mechanisms to support
109 system-wide sleep state transitions; event codes that distinguish
110 different phases of swsusp "sleep" transitions; and userspace policy
111 inputs. This framework was never widely used, and most attempts to
112 use it were broken. Drivers should instead be exposing domain-specific
113 interfaces either to kernel or to userspace.
114Who: Pavel Machek <pavel@ucw.cz>
115
116---------------------------
117
118What: /proc/<pid>/oom_adj
119When: August 2012
120Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's
121 badness heuristic used to determine which task to kill when the kernel
122 is out of memory.
123
124 The badness heuristic has since been rewritten since the introduction of
125 this tunable such that its meaning is deprecated. The value was
126 implemented as a bitshift on a score generated by the badness()
127 function that did not have any precise units of measure. With the
128 rewrite, the score is given as a proportion of available memory to the
129 task allocating pages, so using a bitshift which grows the score
130 exponentially is, thus, impossible to tune with fine granularity.
131
132 A much more powerful interface, /proc/<pid>/oom_score_adj, was
133 introduced with the oom killer rewrite that allows users to increase or
134 decrease the badness score linearly. This interface will replace
135 /proc/<pid>/oom_adj.
136
137 A warning will be emitted to the kernel log if an application uses this
138 deprecated interface. After it is printed once, future warnings will be
139 suppressed until the kernel is rebooted.
140
141---------------------------
142
143What: remove EXPORT_SYMBOL(kernel_thread)
144When: August 2006
145Files: arch/*/kernel/*_ksyms.c
146Check: kernel_thread
147Why: kernel_thread is a low-level implementation detail. Drivers should
148 use the <linux/kthread.h> API instead which shields them from
149 implementation details and provides a higherlevel interface that
150 prevents bugs and code duplication
151Who: Christoph Hellwig <hch@lst.de>
152
153---------------------------
154
155What: Unused EXPORT_SYMBOL/EXPORT_SYMBOL_GPL exports
156 (temporary transition config option provided until then)
157 The transition config option will also be removed at the same time.
158When: before 2.6.19
159Why: Unused symbols are both increasing the size of the kernel binary
160 and are often a sign of "wrong API"
161Who: Arjan van de Ven <arjan@linux.intel.com>
162
163---------------------------
164
165What: PHYSDEVPATH, PHYSDEVBUS, PHYSDEVDRIVER in the uevent environment
166When: October 2008
167Why: The stacking of class devices makes these values misleading and
168 inconsistent.
169 Class devices should not carry any of these properties, and bus
170 devices have SUBSYTEM and DRIVER as a replacement.
171Who: Kay Sievers <kay.sievers@suse.de>
172
173---------------------------
174
175What: ACPI procfs interface
176When: July 2008
177Why: ACPI sysfs conversion should be finished by January 2008.
178 ACPI procfs interface will be removed in July 2008 so that
179 there is enough time for the user space to catch up.
180Who: Zhang Rui <rui.zhang@intel.com>
181
182---------------------------
183
184What: CONFIG_ACPI_PROCFS_POWER
185When: 2.6.39
186Why: sysfs I/F for ACPI power devices, including AC and Battery,
187 has been working in upstream kernel since 2.6.24, Sep 2007.
188 In 2.6.37, we make the sysfs I/F always built in and this option
189 disabled by default.
190 Remove this option and the ACPI power procfs interface in 2.6.39.
191Who: Zhang Rui <rui.zhang@intel.com>
192
193---------------------------
194
195What: /proc/acpi/event
196When: February 2008
197Why: /proc/acpi/event has been replaced by events via the input layer
198 and netlink since 2.6.23.
199Who: Len Brown <len.brown@intel.com>
200
201---------------------------
202
203What: i386/x86_64 bzImage symlinks
204When: April 2010
205
206Why: The i386/x86_64 merge provides a symlink to the old bzImage
207 location so not yet updated user space tools, e.g. package
208 scripts, do not break.
209Who: Thomas Gleixner <tglx@linutronix.de>
210
211---------------------------
212
213What: GPIO autorequest on gpio_direction_{input,output}() in gpiolib
214When: February 2010
215Why: All callers should use explicit gpio_request()/gpio_free().
216 The autorequest mechanism in gpiolib was provided mostly as a
217 migration aid for legacy GPIO interfaces (for SOC based GPIOs).
218 Those users have now largely migrated. Platforms implementing
219 the GPIO interfaces without using gpiolib will see no changes.
220Who: David Brownell <dbrownell@users.sourceforge.net>
221---------------------------
222
223What: b43 support for firmware revision < 410
224When: The schedule was July 2008, but it was decided that we are going to keep the
225 code as long as there are no major maintanance headaches.
226 So it _could_ be removed _any_ time now, if it conflicts with something new.
227Why: The support code for the old firmware hurts code readability/maintainability
228 and slightly hurts runtime performance. Bugfixes for the old firmware
229 are not provided by Broadcom anymore.
230Who: Michael Buesch <m@bues.ch>
231
232---------------------------
233
234What: Ability for non root users to shm_get hugetlb pages based on mlock
235 resource limits
236When: 2.6.31
237Why: Non root users need to be part of /proc/sys/vm/hugetlb_shm_group or
238 have CAP_IPC_LOCK to be able to allocate shm segments backed by
239 huge pages. The mlock based rlimit check to allow shm hugetlb is
240 inconsistent with mmap based allocations. Hence it is being
241 deprecated.
242Who: Ravikiran Thirumalai <kiran@scalex86.org>
243
244---------------------------
245
246What: sysfs ui for changing p4-clockmod parameters
247When: September 2009
248Why: See commits 129f8ae9b1b5be94517da76009ea956e89104ce8 and
249 e088e4c9cdb618675874becb91b2fd581ee707e6.
250 Removal is subject to fixing any remaining bugs in ACPI which may
251 cause the thermal throttling not to happen at the right time.
252Who: Dave Jones <davej@redhat.com>, Matthew Garrett <mjg@redhat.com>
253
254-----------------------------
255
256What: CONFIG_RFKILL_INPUT
257When: 2.6.33
258Why: Should be implemented in userspace, policy daemon.
259Who: Johannes Berg <johannes@sipsolutions.net>
260
261----------------------------
262
263What: sound-slot/service-* module aliases and related clutters in
264 sound/sound_core.c
265When: August 2010
266Why: OSS sound_core grabs all legacy minors (0-255) of SOUND_MAJOR
267 (14) and requests modules using custom sound-slot/service-*
268 module aliases. The only benefit of doing this is allowing
269 use of custom module aliases which might as well be considered
270 a bug at this point. This preemptive claiming prevents
271 alternative OSS implementations.
272
273 Till the feature is removed, the kernel will be requesting
274 both sound-slot/service-* and the standard char-major-* module
275 aliases and allow turning off the pre-claiming selectively via
276 CONFIG_SOUND_OSS_CORE_PRECLAIM and soundcore.preclaim_oss
277 kernel parameter.
278
279 After the transition phase is complete, both the custom module
280 aliases and switches to disable it will go away. This removal
281 will also allow making ALSA OSS emulation independent of
282 sound_core. The dependency will be broken then too.
283Who: Tejun Heo <tj@kernel.org>
284
285----------------------------
286
287What: sysfs-class-rfkill state file
288When: Feb 2014
289Files: net/rfkill/core.c
290Why: Documented as obsolete since Feb 2010. This file is limited to 3
291 states while the rfkill drivers can have 4 states.
292Who: anybody or Florian Mickler <florian@mickler.org>
293
294----------------------------
295
296What: sysfs-class-rfkill claim file
297When: Feb 2012
298Files: net/rfkill/core.c
299Why: It is not possible to claim an rfkill driver since 2007. This is
300 Documented as obsolete since Feb 2010.
301Who: anybody or Florian Mickler <florian@mickler.org>
302
303----------------------------
304
305What: iwlwifi 50XX module parameters
306When: 3.0
307Why: The "..50" modules parameters were used to configure 5000 series and
308 up devices; different set of module parameters also available for 4965
309 with same functionalities. Consolidate both set into single place
310 in drivers/net/wireless/iwlwifi/iwl-agn.c
311
312Who: Wey-Yi Guy <wey-yi.w.guy@intel.com>
313
314----------------------------
315
316What: iwl4965 alias support
317When: 3.0
318Why: Internal alias support has been present in module-init-tools for some
319 time, the MODULE_ALIAS("iwl4965") boilerplate aliases can be removed
320 with no impact.
321
322Who: Wey-Yi Guy <wey-yi.w.guy@intel.com>
323
324---------------------------
325
326What: xt_NOTRACK
327Files: net/netfilter/xt_NOTRACK.c
328When: April 2011
329Why: Superseded by xt_CT
330Who: Netfilter developer team <netfilter-devel@vger.kernel.org>
331
332----------------------------
333
334What: IRQF_DISABLED
335When: 2.6.36
336Why: The flag is a NOOP as we run interrupt handlers with interrupts disabled
337Who: Thomas Gleixner <tglx@linutronix.de>
338
339----------------------------
340
341What: PCI DMA unmap state API
342When: August 2012
343Why: PCI DMA unmap state API (include/linux/pci-dma.h) was replaced
344 with DMA unmap state API (DMA unmap state API can be used for
345 any bus).
346Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
347
348----------------------------
349
350What: iwlwifi disable_hw_scan module parameters
351When: 3.0
352Why: Hareware scan is the prefer method for iwlwifi devices for
353 scanning operation. Remove software scan support for all the
354 iwlwifi devices.
355
356Who: Wey-Yi Guy <wey-yi.w.guy@intel.com>
357
358----------------------------
359
360What: i2c_driver.attach_adapter
361 i2c_driver.detach_adapter
362When: September 2011
363Why: These legacy callbacks should no longer be used as i2c-core offers
364 a variety of preferable alternative ways to instantiate I2C devices.
365Who: Jean Delvare <khali@linux-fr.org>
366
367----------------------------
368
369What: Opening a radio device node will no longer automatically switch the
370 tuner mode from tv to radio.
371When: 3.3
372Why: Just opening a V4L device should not change the state of the hardware
373 like that. It's very unexpected and against the V4L spec. Instead, you
374 switch to radio mode by calling VIDIOC_S_FREQUENCY. This is the second
375 and last step of the move to consistent handling of tv and radio tuners.
376Who: Hans Verkuil <hans.verkuil@cisco.com>
377
378----------------------------
379
380What: CONFIG_CFG80211_WEXT
381When: as soon as distributions ship new wireless tools, ie. wpa_supplicant 1.0
382 and NetworkManager/connman/etc. that are able to use nl80211
383Why: Wireless extensions are deprecated, and userland tools are moving to
384 using nl80211. New drivers are no longer using wireless extensions,
385 and while there might still be old drivers, both new drivers and new
386 userland no longer needs them and they can't be used for an feature
387 developed in the past couple of years. As such, compatibility with
388 wireless extensions in new drivers will be removed.
389Who: Johannes Berg <johannes@sipsolutions.net>
390
391----------------------------
392
393What: g_file_storage driver
394When: 3.8
395Why: This driver has been superseded by g_mass_storage.
396Who: Alan Stern <stern@rowland.harvard.edu>
397
398----------------------------
399
400What: threeg and interface sysfs files in /sys/devices/platform/acer-wmi
401When: 2012
402Why: In 3.0, we can now autodetect internal 3G device and already have
403 the threeg rfkill device. So, we plan to remove threeg sysfs support
404 for it's no longer necessary.
405
406 We also plan to remove interface sysfs file that exposed which ACPI-WMI
407 interface that was used by acer-wmi driver. It will replaced by
408 information log when acer-wmi initial.
409Who: Lee, Chun-Yi <jlee@novell.com>
410
411---------------------------
412
413What: /sys/devices/platform/_UDC_/udc/_UDC_/is_dualspeed file and
414 is_dualspeed line in /sys/devices/platform/ci13xxx_*/udc/device file.
415When: 3.8
416Why: The is_dualspeed file is superseded by maximum_speed in the same
417 directory and is_dualspeed line in device file is superseded by
418 max_speed line in the same file.
419
420 The maximum_speed/max_speed specifies maximum speed supported by UDC.
421 To check if dualspeeed is supported, check if the value is >= 3.
422 Various possible speeds are defined in <linux/usb/ch9.h>.
423Who: Michal Nazarewicz <mina86@mina86.com>
424
425----------------------------
426
427What: The XFS nodelaylog mount option
428When: 3.3
429Why: The delaylog mode that has been the default since 2.6.39 has proven
430 stable, and the old code is in the way of additional improvements in
431 the log code.
432Who: Christoph Hellwig <hch@lst.de>
433
434----------------------------
435
436What: iwlagn alias support
437When: 3.5
438Why: The iwlagn module has been renamed iwlwifi. The alias will be around
439 for backward compatibility for several cycles and then dropped.
440Who: Don Fry <donald.h.fry@intel.com>
441
442----------------------------
443
444What: pci_scan_bus_parented()
445When: 3.5
446Why: The pci_scan_bus_parented() interface creates a new root bus. The
447 bus is created with default resources (ioport_resource and
448 iomem_resource) that are always wrong, so we rely on arch code to
449 correct them later. Callers of pci_scan_bus_parented() should
450 convert to using pci_scan_root_bus() so they can supply a list of
451 bus resources when the bus is created.
452Who: Bjorn Helgaas <bhelgaas@google.com>
453
454----------------------------
455
456What: get_robust_list syscall
457When: 2013
458Why: There appear to be no production users of the get_robust_list syscall,
459 and it runs the risk of leaking address locations, allowing the bypass
460 of ASLR. It was only ever intended for debugging, so it should be
461 removed.
462Who: Kees Cook <keescook@chromium.org>
463
464----------------------------
465
466What: Removing the pn544 raw driver.
467When: 3.6
468Why: With the introduction of the NFC HCI and SHDL kernel layers, pn544.c
469 is being replaced by pn544_hci.c which is accessible through the netlink
470 and socket NFC APIs. Moreover, pn544.c is outdated and does not seem to
471 work properly with the latest Android stacks.
472 Having 2 drivers for the same hardware is confusing and as such we
473 should only keep the one following the kernel NFC APIs.
474Who: Samuel Ortiz <sameo@linux.intel.com>
475
476----------------------------
477
478What: setitimer accepts user NULL pointer (value)
479When: 3.6
480Why: setitimer is not returning -EFAULT if user pointer is NULL. This
481 violates the spec.
482Who: Sasikantha Babu <sasikanth.v19@gmail.com>
483
484----------------------------
485
486What: remove bogus DV presets V4L2_DV_1080I29_97, V4L2_DV_1080I30 and
487 V4L2_DV_1080I25
488When: 3.6
489Why: These HDTV formats do not exist and were added by a confused mind
490 (that was me, to be precise...)
491Who: Hans Verkuil <hans.verkuil@cisco.com>
492
493----------------------------
494
495What: V4L2_CID_HCENTER, V4L2_CID_VCENTER V4L2 controls
496When: 3.7
497Why: The V4L2_CID_VCENTER, V4L2_CID_HCENTER controls have been deprecated
498 for about 4 years and they are not used by any mainline driver.
499 There are newer controls (V4L2_CID_PAN*, V4L2_CID_TILT*) that provide
500 similar functionality.
501Who: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
502
503----------------------------
504
505What: cgroup option updates via remount
506When: March 2013
507Why: Remount currently allows changing bound subsystems and
508 release_agent. Rebinding is hardly useful as it only works
509 when the hierarchy is empty and release_agent itself should be
510 replaced with conventional fsnotify.
511
512----------------------------
513
514What: xt_recent rev 0
515When: 2013
516Who: Pablo Neira Ayuso <pablo@netfilter.org>
517Files: net/netfilter/xt_recent.c
518
519----------------------------
520
521What: KVM debugfs statistics
522When: 2013
523Why: KVM tracepoints provide mostly equivalent information in a much more
524 flexible fashion.
525
526----------------------------
527
528What: at91-mci driver ("CONFIG_MMC_AT91")
529When: 3.8
530Why: There are two mci drivers: at91-mci and atmel-mci. The PDC support
531 was added to atmel-mci as a first step to support more chips.
532 Then at91-mci was kept only for old IP versions (on at91rm9200 and
533 at91sam9261). The support of these IP versions has just been added
534 to atmel-mci, so atmel-mci can be used for all chips.
535Who: Ludovic Desroches <ludovic.desroches@atmel.com>
536
537----------------------------
538
539What: net/wanrouter/
540When: June 2013
541Why: Unsupported/unmaintained/unused since 2.6
542
543----------------------------
544
545What: V4L2 selections API target rectangle and flags unification, the
546 following definitions will be removed: V4L2_SEL_TGT_CROP_ACTIVE,
547 V4L2_SEL_TGT_COMPOSE_ACTIVE, V4L2_SUBDEV_SEL_*, V4L2_SUBDEV_SEL_FLAG_*
548 in favor of common V4L2_SEL_TGT_* and V4L2_SEL_FLAG_* definitions.
549 For more details see include/linux/v4l2-common.h.
550When: 3.8
551Why: The regular V4L2 selections and the subdev selection API originally
552 defined distinct names for the target rectangles and flags - V4L2_SEL_*
553 and V4L2_SUBDEV_SEL_*. Although, it turned out that the meaning of these
554 target rectangles is virtually identical and the APIs were consolidated
555 to use single set of names - V4L2_SEL_*. This didn't involve any ABI
556 changes. Alias definitions were created for the original ones to avoid
557 any instabilities in the user space interface. After few cycles these
558 backward compatibility definitions will be removed.
559Who: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
560
561----------------------------
562
563What: Using V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags
564 to indicate a V4L2 memory-to-memory device capability
565When: 3.8
566Why: New drivers should use new V4L2_CAP_VIDEO_M2M capability flag
567 to indicate a V4L2 video memory-to-memory (M2M) device and
568 applications can now identify a M2M video device by checking
569 for V4L2_CAP_VIDEO_M2M, with VIDIOC_QUERYCAP ioctl. Using ORed
570 V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags for M2M
571 devices is ambiguous and may lead, for example, to identifying
572 a M2M device as a video capture or output device.
573Who: Sylwester Nawrocki <s.nawrocki@samsung.com>
574
575----------------------------
576
577What: OMAP private DMA implementation
578When: 2013
579Why: We have a DMA engine implementation; all users should be updated
580 to use this rather than persisting with the old APIs. The old APIs
581 block merging the old DMA engine implementation into the DMA
582 engine driver.
583Who: Russell King <linux@arm.linux.org.uk>,
584 Santosh Shilimkar <santosh.shilimkar@ti.com>
585
586----------------------------