2005-04-17 06:20:36 +08:00
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The following is a list of files and features that are going to be
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removed in the kernel source tree. Every entry should contain what
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exactly is going away, why it is happening, and who is going to be doing
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the work. When the feature is removed from the kernel, it should also
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be removed from this file.
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---------------------------
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2009-09-09 03:09:47 +08:00
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What: PRISM54
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When: 2.6.34
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Why: prism54 FullMAC PCI / Cardbus devices used to be supported only by the
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prism54 wireless driver. After Intersil stopped selling these
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devices in preference for the newer more flexible SoftMAC devices
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a SoftMAC device driver was required and prism54 did not support
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them. The p54pci driver now exists and has been present in the kernel for
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a while. This driver supports both SoftMAC devices and FullMAC devices.
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The main difference between these devices was the amount of memory which
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could be used for the firmware. The SoftMAC devices support a smaller
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amount of memory. Because of this the SoftMAC firmware fits into FullMAC
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devices's memory. p54pci supports not only PCI / Cardbus but also USB
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and SPI. Since p54pci supports all devices prism54 supports
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you will have a conflict. I'm not quite sure how distributions are
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handling this conflict right now. prism54 was kept around due to
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claims users may experience issues when using the SoftMAC driver.
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Time has passed users have not reported issues. If you use prism54
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and for whatever reason you cannot use p54pci please let us know!
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E-mail us at: linux-wireless@vger.kernel.org
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For more information see the p54 wiki page:
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http://wireless.kernel.org/en/users/Drivers/p54
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Who: Luis R. Rodriguez <lrodriguez@atheros.com>
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---------------------------
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2011-02-10 05:13:11 +08:00
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What: AR9170USB
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When: 2.6.40
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Why: This driver is deprecated and the firmware is no longer
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maintained. The replacement driver "carl9170" has been
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around for a while, so the devices are still supported.
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Who: Christian Lamparter <chunkeey@googlemail.com>
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---------------------------
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2009-06-18 07:25:54 +08:00
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What: IRQF_SAMPLE_RANDOM
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Check: IRQF_SAMPLE_RANDOM
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When: July 2009
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Why: Many of IRQF_SAMPLE_RANDOM users are technically bogus as entropy
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sources in the kernel's current entropy model. To resolve this, every
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input point to the kernel's entropy pool needs to better document the
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type of entropy source it actually is. This will be replaced with
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additional add_*_randomness functions in drivers/char/random.c
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Who: Robin Getz <rgetz@blackfin.uclinux.org> & Matt Mackall <mpm@selenic.com>
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---------------------------
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2010-01-28 06:47:50 +08:00
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What: Deprecated snapshot ioctls
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When: 2.6.36
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Why: The ioctls in kernel/power/user.c were marked as deprecated long time
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ago. Now they notify users about that so that they need to replace
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their userspace. After some more time, remove them completely.
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Who: Jiri Slaby <jirislaby@gmail.com>
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---------------------------
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2009-03-21 11:53:06 +08:00
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What: The ieee80211_regdom module parameter
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2009-03-25 09:21:07 +08:00
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When: March 2010 / desktop catchup
|
2009-03-21 11:53:06 +08:00
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Why: This was inherited by the CONFIG_WIRELESS_OLD_REGULATORY code,
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and currently serves as an option for users to define an
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ISO / IEC 3166 alpha2 code for the country they are currently
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present in. Although there are userspace API replacements for this
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through nl80211 distributions haven't yet caught up with implementing
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decent alternatives through standard GUIs. Although available as an
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option through iw or wpa_supplicant its just a matter of time before
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distributions pick up good GUI options for this. The ideal solution
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would actually consist of intelligent designs which would do this for
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the user automatically even when travelling through different countries.
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Until then we leave this module parameter as a compromise.
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When userspace improves with reasonable widely-available alternatives for
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this we will no longer need this module parameter. This entry hopes that
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by the super-futuristically looking date of "March 2010" we will have
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such replacements widely available.
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Who: Luis R. Rodriguez <lrodriguez@atheros.com>
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---------------------------
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|
2007-07-13 04:55:07 +08:00
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What: dev->power.power_state
|
2006-08-31 04:50:27 +08:00
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When: July 2007
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Why: Broken design for runtime control over driver power states, confusing
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driver-internal runtime power management with: mechanisms to support
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system-wide sleep state transitions; event codes that distinguish
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different phases of swsusp "sleep" transitions; and userspace policy
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inputs. This framework was never widely used, and most attempts to
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use it were broken. Drivers should instead be exposing domain-specific
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interfaces either to kernel or to userspace.
|
2010-07-18 20:27:13 +08:00
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Who: Pavel Machek <pavel@ucw.cz>
|
2006-08-31 04:50:27 +08:00
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---------------------------
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|
2010-09-30 19:25:42 +08:00
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What: Video4Linux obsolete drivers using V4L1 API
|
2010-12-25 18:46:56 +08:00
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When: kernel 2.6.39
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Files: drivers/staging/se401/* drivers/staging/usbvideo/*
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Check: drivers/staging/se401/se401.c drivers/staging/usbvideo/usbvideo.c
|
2010-09-30 19:25:42 +08:00
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Why: There are some drivers still using V4L1 API, despite all efforts we've done
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to migrate. Those drivers are for obsolete hardware that the old maintainer
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didn't care (or not have the hardware anymore), and that no other developer
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could find any hardware to buy. They probably have no practical usage today,
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and people with such old hardware could probably keep using an older version
|
2010-12-25 18:46:56 +08:00
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of the kernel. Those drivers will be moved to staging on 2.6.38 and, if nobody
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cares enough to port and test them with V4L2 API, they'll be removed on 2.6.39.
|
2010-09-30 19:25:42 +08:00
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Who: Mauro Carvalho Chehab <mchehab@infradead.org>
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---------------------------
|
2010-12-27 22:14:52 +08:00
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What: Video4Linux: Remove obsolete ioctl's
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When: kernel 2.6.39
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Files: include/media/videodev2.h
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Why: Some ioctl's were defined wrong on 2.6.2 and 2.6.6, using the wrong
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type of R/W arguments. They were fixed, but the old ioctl names are
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still there, maintained to avoid breaking binary compatibility:
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#define VIDIOC_OVERLAY_OLD _IOWR('V', 14, int)
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#define VIDIOC_S_PARM_OLD _IOW('V', 22, struct v4l2_streamparm)
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#define VIDIOC_S_CTRL_OLD _IOW('V', 28, struct v4l2_control)
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#define VIDIOC_G_AUDIO_OLD _IOWR('V', 33, struct v4l2_audio)
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#define VIDIOC_G_AUDOUT_OLD _IOWR('V', 49, struct v4l2_audioout)
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#define VIDIOC_CROPCAP_OLD _IOR('V', 58, struct v4l2_cropcap)
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|
There's no sense on preserving those forever, as it is very doubtful
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|
that someone would try to use a such old binary with a modern kernel.
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Removing them will allow us to remove some magic done at the V4L ioctl
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handler.
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Who: Mauro Carvalho Chehab <mchehab@infradead.org>
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|
|
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|
---------------------------
|
2010-09-30 19:25:42 +08:00
|
|
|
|
2007-10-18 18:05:58 +08:00
|
|
|
What: sys_sysctl
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When: September 2010
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|
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Option: CONFIG_SYSCTL_SYSCALL
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|
Why: The same information is available in a more convenient from
|
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|
|
/proc/sys, and none of the sysctl variables appear to be
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|
|
important performance wise.
|
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|
|
Binary sysctls are a long standing source of subtle kernel
|
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|
|
bugs and security issues.
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|
|
When I looked several months ago all I could find after
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|
|
searching several distributions were 5 user space programs and
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|
glibc (which falls back to /proc/sys) using this syscall.
|
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The man page for sysctl(2) documents it as unusable for user
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space programs.
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|
sysctl(2) is not generally ABI compatible to a 32bit user
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|
space application on a 64bit and a 32bit kernel.
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For the last several months the policy has been no new binary
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sysctls and no one has put forward an argument to use them.
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Binary sysctls issues seem to keep happening appearing so
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|
properly deprecating them (with a warning to user space) and a
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|
|
2 year grace warning period will mean eventually we can kill
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them and end the pain.
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In the mean time individual binary sysctls can be dealt with
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in a piecewise fashion.
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Who: Eric Biederman <ebiederm@xmission.com>
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|
---------------------------
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|
|
2010-08-10 08:19:47 +08:00
|
|
|
What: /proc/<pid>/oom_adj
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When: August 2012
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Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's
|
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|
|
badness heuristic used to determine which task to kill when the kernel
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is out of memory.
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The badness heuristic has since been rewritten since the introduction of
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this tunable such that its meaning is deprecated. The value was
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implemented as a bitshift on a score generated by the badness()
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function that did not have any precise units of measure. With the
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|
|
rewrite, the score is given as a proportion of available memory to the
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task allocating pages, so using a bitshift which grows the score
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exponentially is, thus, impossible to tune with fine granularity.
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A much more powerful interface, /proc/<pid>/oom_score_adj, was
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introduced with the oom killer rewrite that allows users to increase or
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decrease the badness() score linearly. This interface will replace
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/proc/<pid>/oom_adj.
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A warning will be emitted to the kernel log if an application uses this
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|
|
deprecated interface. After it is printed once, future warnings will be
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|
suppressed until the kernel is rebooted.
|
|
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|
|
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|
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|
|
---------------------------
|
2011-01-13 09:00:12 +08:00
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|
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What: CS5535/CS5536 obsolete GPIO driver
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When: June 2011
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|
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Files: drivers/staging/cs5535_gpio/*
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|
|
Check: drivers/staging/cs5535_gpio/cs5535_gpio.c
|
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Why: A newer driver replaces this; it is drivers/gpio/cs5535-gpio.c, and
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|
|
integrates with the Linux GPIO subsystem. The old driver has been
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moved to staging, and will be removed altogether around 2.6.40.
|
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Please test the new driver, and ensure that the functionality you
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need and any bugfixes from the old driver are available in the new
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one.
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|
|
Who: Andres Salomon <dilinger@queued.net>
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|
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--------------------------
|
2010-08-10 08:19:47 +08:00
|
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|
|
2006-03-24 19:18:22 +08:00
|
|
|
What: remove EXPORT_SYMBOL(kernel_thread)
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When: August 2006
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|
|
Files: arch/*/kernel/*_ksyms.c
|
2007-07-19 16:48:34 +08:00
|
|
|
Check: kernel_thread
|
2006-03-24 19:18:22 +08:00
|
|
|
Why: kernel_thread is a low-level implementation detail. Drivers should
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use the <linux/kthread.h> API instead which shields them from
|
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implementation details and provides a higherlevel interface that
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prevents bugs and code duplication
|
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|
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Who: Christoph Hellwig <hch@lst.de>
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|
|
---------------------------
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|
2006-06-28 19:26:45 +08:00
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|
|
What: Unused EXPORT_SYMBOL/EXPORT_SYMBOL_GPL exports
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|
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(temporary transition config option provided until then)
|
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The transition config option will also be removed at the same time.
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|
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When: before 2.6.19
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Why: Unused symbols are both increasing the size of the kernel binary
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and are often a sign of "wrong API"
|
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|
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Who: Arjan van de Ven <arjan@linux.intel.com>
|
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|
|
|
|
---------------------------
|
|
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|
|
2006-08-13 12:17:09 +08:00
|
|
|
What: PHYSDEVPATH, PHYSDEVBUS, PHYSDEVDRIVER in the uevent environment
|
2006-10-01 10:41:43 +08:00
|
|
|
When: October 2008
|
2006-08-13 12:17:09 +08:00
|
|
|
Why: The stacking of class devices makes these values misleading and
|
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|
|
inconsistent.
|
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|
|
Class devices should not carry any of these properties, and bus
|
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|
|
devices have SUBSYTEM and DRIVER as a replacement.
|
|
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|
|
Who: Kay Sievers <kay.sievers@suse.de>
|
|
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|
|
|
|
|
|
|
---------------------------
|
2006-08-14 05:45:52 +08:00
|
|
|
|
2007-01-29 11:02:30 +08:00
|
|
|
What: ACPI procfs interface
|
2007-07-18 17:23:24 +08:00
|
|
|
When: July 2008
|
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|
|
Why: ACPI sysfs conversion should be finished by January 2008.
|
|
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|
|
ACPI procfs interface will be removed in July 2008 so that
|
|
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|
|
there is enough time for the user space to catch up.
|
2007-01-29 11:02:30 +08:00
|
|
|
Who: Zhang Rui <rui.zhang@intel.com>
|
|
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2011-01-10 11:16:30 +08:00
|
|
|
What: CONFIG_ACPI_PROCFS_POWER
|
|
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|
|
When: 2.6.39
|
|
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|
|
Why: sysfs I/F for ACPI power devices, including AC and Battery,
|
|
|
|
|
has been working in upstream kenrel since 2.6.24, Sep 2007.
|
|
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|
|
In 2.6.37, we make the sysfs I/F always built in and this option
|
|
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|
|
disabled by default.
|
|
|
|
|
Remove this option and the ACPI power procfs interface in 2.6.39.
|
|
|
|
|
Who: Zhang Rui <rui.zhang@intel.com>
|
|
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2007-01-11 14:49:44 +08:00
|
|
|
What: /proc/acpi/button
|
|
|
|
|
When: August 2007
|
|
|
|
|
Why: /proc/acpi/button has been replaced by events to the input layer
|
|
|
|
|
since 2.6.20.
|
|
|
|
|
Who: Len Brown <len.brown@intel.com>
|
|
|
|
|
|
|
|
|
|
---------------------------
|
2007-01-23 13:29:01 +08:00
|
|
|
|
2007-08-24 03:20:26 +08:00
|
|
|
What: /proc/acpi/event
|
|
|
|
|
When: February 2008
|
|
|
|
|
Why: /proc/acpi/event has been replaced by events via the input layer
|
|
|
|
|
and netlink since 2.6.23.
|
|
|
|
|
Who: Len Brown <len.brown@intel.com>
|
|
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2007-10-11 17:20:05 +08:00
|
|
|
What: i386/x86_64 bzImage symlinks
|
2008-04-10 16:12:27 +08:00
|
|
|
When: April 2010
|
2007-10-11 17:20:05 +08:00
|
|
|
|
|
|
|
|
Why: The i386/x86_64 merge provides a symlink to the old bzImage
|
|
|
|
|
location so not yet updated user space tools, e.g. package
|
|
|
|
|
scripts, do not break.
|
|
|
|
|
Who: Thomas Gleixner <tglx@linutronix.de>
|
2007-10-12 10:40:14 +08:00
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2009-04-03 07:57:06 +08:00
|
|
|
What: GPIO autorequest on gpio_direction_{input,output}() in gpiolib
|
|
|
|
|
When: February 2010
|
|
|
|
|
Why: All callers should use explicit gpio_request()/gpio_free().
|
|
|
|
|
The autorequest mechanism in gpiolib was provided mostly as a
|
|
|
|
|
migration aid for legacy GPIO interfaces (for SOC based GPIOs).
|
|
|
|
|
Those users have now largely migrated. Platforms implementing
|
|
|
|
|
the GPIO interfaces without using gpiolib will see no changes.
|
|
|
|
|
Who: David Brownell <dbrownell@users.sourceforge.net>
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2008-01-29 06:47:41 +08:00
|
|
|
What: b43 support for firmware revision < 410
|
2008-12-28 01:26:39 +08:00
|
|
|
When: The schedule was July 2008, but it was decided that we are going to keep the
|
|
|
|
|
code as long as there are no major maintanance headaches.
|
|
|
|
|
So it _could_ be removed _any_ time now, if it conflicts with something new.
|
2008-01-29 06:47:41 +08:00
|
|
|
Why: The support code for the old firmware hurts code readability/maintainability
|
|
|
|
|
and slightly hurts runtime performance. Bugfixes for the old firmware
|
|
|
|
|
are not provided by Broadcom anymore.
|
|
|
|
|
Who: Michael Buesch <mb@bu3sch.de>
|
2008-02-10 15:08:53 +08:00
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2008-01-30 09:08:26 +08:00
|
|
|
What: /sys/o2cb symlink
|
|
|
|
|
When: January 2010
|
|
|
|
|
Why: /sys/fs/o2cb is the proper location for this information - /sys/o2cb
|
|
|
|
|
exists as a symlink for backwards compatibility for old versions of
|
|
|
|
|
ocfs2-tools. 2 years should be sufficient time to phase in new versions
|
|
|
|
|
which know to look in /sys/fs/o2cb.
|
|
|
|
|
Who: ocfs2-devel@oss.oracle.com
|
2008-04-20 01:49:34 +08:00
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2009-04-01 06:21:26 +08:00
|
|
|
What: Ability for non root users to shm_get hugetlb pages based on mlock
|
|
|
|
|
resource limits
|
|
|
|
|
When: 2.6.31
|
|
|
|
|
Why: Non root users need to be part of /proc/sys/vm/hugetlb_shm_group or
|
|
|
|
|
have CAP_IPC_LOCK to be able to allocate shm segments backed by
|
|
|
|
|
huge pages. The mlock based rlimit check to allow shm hugetlb is
|
|
|
|
|
inconsistent with mmap based allocations. Hence it is being
|
|
|
|
|
deprecated.
|
|
|
|
|
Who: Ravikiran Thirumalai <kiran@scalex86.org>
|
|
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2008-06-25 01:38:56 +08:00
|
|
|
What: CONFIG_THERMAL_HWMON
|
|
|
|
|
When: January 2009
|
|
|
|
|
Why: This option was introduced just to allow older lm-sensors userspace
|
|
|
|
|
to keep working over the upgrade to 2.6.26. At the scheduled time of
|
|
|
|
|
removal fixed lm-sensors (2.x or 3.x) should be readily available.
|
|
|
|
|
Who: Rene Herman <rene.herman@gmail.com>
|
2008-07-10 17:16:47 +08:00
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
|
|
|
|
What: Code that is now under CONFIG_WIRELESS_EXT_SYSFS
|
|
|
|
|
(in net/core/net-sysfs.c)
|
|
|
|
|
When: After the only user (hal) has seen a release with the patches
|
|
|
|
|
for enough time, probably some time in 2010.
|
|
|
|
|
Why: Over 1K .text/.data size reduction, data is available in other
|
|
|
|
|
ways (ioctls)
|
|
|
|
|
Who: Johannes Berg <johannes@sipsolutions.net>
|
netfilter: accounting rework: ct_extend + 64bit counters (v4)
Initially netfilter has had 64bit counters for conntrack-based accounting, but
it was changed in 2.6.14 to save memory. Unfortunately in-kernel 64bit counters are
still required, for example for "connbytes" extension. However, 64bit counters
waste a lot of memory and it was not possible to enable/disable it runtime.
This patch:
- reimplements accounting with respect to the extension infrastructure,
- makes one global version of seq_print_acct() instead of two seq_print_counters(),
- makes it possible to enable it at boot time (for CONFIG_SYSCTL/CONFIG_SYSFS=n),
- makes it possible to enable/disable it at runtime by sysctl or sysfs,
- extends counters from 32bit to 64bit,
- renames ip_conntrack_counter -> nf_conn_counter,
- enables accounting code unconditionally (no longer depends on CONFIG_NF_CT_ACCT),
- set initial accounting enable state based on CONFIG_NF_CT_ACCT
- removes buggy IPCT_COUNTER_FILLING event handling.
If accounting is enabled newly created connections get additional acct extend.
Old connections are not changed as it is not possible to add a ct_extend area
to confirmed conntrack. Accounting is performed for all connections with
acct extend regardless of a current state of "net.netfilter.nf_conntrack_acct".
Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22 01:01:34 +08:00
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2009-03-10 03:14:37 +08:00
|
|
|
What: sysfs ui for changing p4-clockmod parameters
|
|
|
|
|
When: September 2009
|
|
|
|
|
Why: See commits 129f8ae9b1b5be94517da76009ea956e89104ce8 and
|
|
|
|
|
e088e4c9cdb618675874becb91b2fd581ee707e6.
|
|
|
|
|
Removal is subject to fixing any remaining bugs in ACPI which may
|
|
|
|
|
cause the thermal throttling not to happen at the right time.
|
|
|
|
|
Who: Dave Jones <davej@redhat.com>, Matthew Garrett <mjg@redhat.com>
|
2009-03-13 21:34:05 +08:00
|
|
|
|
|
|
|
|
-----------------------------
|
|
|
|
|
|
2009-03-21 04:56:56 +08:00
|
|
|
What: fakephp and associated sysfs files in /sys/bus/pci/slots/
|
|
|
|
|
When: 2011
|
|
|
|
|
Why: In 2.6.27, the semantics of /sys/bus/pci/slots was redefined to
|
|
|
|
|
represent a machine's physical PCI slots. The change in semantics
|
|
|
|
|
had userspace implications, as the hotplug core no longer allowed
|
|
|
|
|
drivers to create multiple sysfs files per physical slot (required
|
|
|
|
|
for multi-function devices, e.g.). fakephp was seen as a developer's
|
|
|
|
|
tool only, and its interface changed. Too late, we learned that
|
|
|
|
|
there were some users of the fakephp interface.
|
|
|
|
|
|
|
|
|
|
In 2.6.30, the original fakephp interface was restored. At the same
|
|
|
|
|
time, the PCI core gained the ability that fakephp provided, namely
|
|
|
|
|
function-level hot-remove and hot-add.
|
|
|
|
|
|
|
|
|
|
Since the PCI core now provides the same functionality, exposed in:
|
|
|
|
|
|
|
|
|
|
/sys/bus/pci/rescan
|
|
|
|
|
/sys/bus/pci/devices/.../remove
|
|
|
|
|
/sys/bus/pci/devices/.../rescan
|
|
|
|
|
|
|
|
|
|
there is no functional reason to maintain fakephp as well.
|
|
|
|
|
|
|
|
|
|
We will keep the existing module so that 'modprobe fakephp' will
|
|
|
|
|
present the old /sys/bus/pci/slots/... interface for compatibility,
|
|
|
|
|
but users are urged to migrate their applications to the API above.
|
|
|
|
|
|
|
|
|
|
After a reasonable transition period, we will remove the legacy
|
|
|
|
|
fakephp interface.
|
|
|
|
|
Who: Alex Chiang <achiang@hp.com>
|
2009-04-13 23:02:13 +08:00
|
|
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
2009-06-02 19:01:38 +08:00
|
|
|
What: CONFIG_RFKILL_INPUT
|
|
|
|
|
When: 2.6.33
|
|
|
|
|
Why: Should be implemented in userspace, policy daemon.
|
|
|
|
|
Who: Johannes Berg <johannes@sipsolutions.net>
|
2009-06-15 18:02:23 +08:00
|
|
|
|
2009-04-29 05:18:26 +08:00
|
|
|
----------------------------
|
2009-08-06 17:14:26 +08:00
|
|
|
|
|
|
|
|
What: sound-slot/service-* module aliases and related clutters in
|
|
|
|
|
sound/sound_core.c
|
|
|
|
|
When: August 2010
|
|
|
|
|
Why: OSS sound_core grabs all legacy minors (0-255) of SOUND_MAJOR
|
|
|
|
|
(14) and requests modules using custom sound-slot/service-*
|
|
|
|
|
module aliases. The only benefit of doing this is allowing
|
|
|
|
|
use of custom module aliases which might as well be considered
|
|
|
|
|
a bug at this point. This preemptive claiming prevents
|
|
|
|
|
alternative OSS implementations.
|
|
|
|
|
|
|
|
|
|
Till the feature is removed, the kernel will be requesting
|
|
|
|
|
both sound-slot/service-* and the standard char-major-* module
|
|
|
|
|
aliases and allow turning off the pre-claiming selectively via
|
|
|
|
|
CONFIG_SOUND_OSS_CORE_PRECLAIM and soundcore.preclaim_oss
|
|
|
|
|
kernel parameter.
|
|
|
|
|
|
|
|
|
|
After the transition phase is complete, both the custom module
|
|
|
|
|
aliases and switches to disable it will go away. This removal
|
|
|
|
|
will also allow making ALSA OSS emulation independent of
|
|
|
|
|
sound_core. The dependency will be broken then too.
|
|
|
|
|
Who: Tejun Heo <tj@kernel.org>
|
2009-09-30 01:25:24 +08:00
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
2009-12-03 15:45:17 +08:00
|
|
|
What: Support for lcd_switch and display_get in asus-laptop driver
|
|
|
|
|
When: March 2010
|
|
|
|
|
Why: These two features use non-standard interfaces. There are the
|
|
|
|
|
only features that really need multiple path to guess what's
|
|
|
|
|
the right method name on a specific laptop.
|
|
|
|
|
|
|
|
|
|
Removing them will allow to remove a lot of code an significantly
|
|
|
|
|
clean the drivers.
|
|
|
|
|
|
|
|
|
|
This will affect the backlight code which won't be able to know
|
|
|
|
|
if the backlight is on or off. The platform display file will also be
|
|
|
|
|
write only (like the one in eeepc-laptop).
|
|
|
|
|
|
|
|
|
|
This should'nt affect a lot of user because they usually know
|
|
|
|
|
when their display is on or off.
|
|
|
|
|
|
|
|
|
|
Who: Corentin Chary <corentin.chary@gmail.com>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
2010-01-11 20:50:53 +08:00
|
|
|
|
2010-02-24 19:05:16 +08:00
|
|
|
What: sysfs-class-rfkill state file
|
|
|
|
|
When: Feb 2014
|
|
|
|
|
Files: net/rfkill/core.c
|
|
|
|
|
Why: Documented as obsolete since Feb 2010. This file is limited to 3
|
|
|
|
|
states while the rfkill drivers can have 4 states.
|
|
|
|
|
Who: anybody or Florian Mickler <florian@mickler.org>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
|
|
|
|
What: sysfs-class-rfkill claim file
|
|
|
|
|
When: Feb 2012
|
|
|
|
|
Files: net/rfkill/core.c
|
|
|
|
|
Why: It is not possible to claim an rfkill driver since 2007. This is
|
|
|
|
|
Documented as obsolete since Feb 2010.
|
|
|
|
|
Who: anybody or Florian Mickler <florian@mickler.org>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
2010-02-08 18:12:44 +08:00
|
|
|
What: capifs
|
|
|
|
|
When: February 2011
|
|
|
|
|
Files: drivers/isdn/capi/capifs.*
|
|
|
|
|
Why: udev fully replaces this special file system that only contains CAPI
|
|
|
|
|
NCCI TTY device nodes. User space (pppdcapiplugin) works without
|
|
|
|
|
noticing the difference.
|
|
|
|
|
Who: Jan Kiszka <jan.kiszka@web.de>
|
2010-03-06 05:12:34 +08:00
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
2010-01-26 22:30:06 +08:00
|
|
|
What: KVM paravirt mmu host support
|
|
|
|
|
When: January 2011
|
|
|
|
|
Why: The paravirt mmu host support is slower than non-paravirt mmu, both
|
|
|
|
|
on newer and older hardware. It is already not exposed to the guest,
|
|
|
|
|
and kept only for live migration purposes.
|
|
|
|
|
Who: Avi Kivity <avi@redhat.com>
|
2010-03-06 05:12:34 +08:00
|
|
|
|
|
|
|
|
----------------------------
|
2010-03-15 04:28:46 +08:00
|
|
|
|
2010-03-23 00:17:39 +08:00
|
|
|
What: iwlwifi 50XX module parameters
|
|
|
|
|
When: 2.6.40
|
|
|
|
|
Why: The "..50" modules parameters were used to configure 5000 series and
|
|
|
|
|
up devices; different set of module parameters also available for 4965
|
|
|
|
|
with same functionalities. Consolidate both set into single place
|
|
|
|
|
in drivers/net/wireless/iwlwifi/iwl-agn.c
|
|
|
|
|
|
|
|
|
|
Who: Wey-Yi Guy <wey-yi.w.guy@intel.com>
|
2010-03-24 01:17:03 +08:00
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
|
|
|
|
What: iwl4965 alias support
|
|
|
|
|
When: 2.6.40
|
|
|
|
|
Why: Internal alias support has been present in module-init-tools for some
|
|
|
|
|
time, the MODULE_ALIAS("iwl4965") boilerplate aliases can be removed
|
|
|
|
|
with no impact.
|
|
|
|
|
|
|
|
|
|
Who: Wey-Yi Guy <wey-yi.w.guy@intel.com>
|
2010-04-20 22:02:01 +08:00
|
|
|
|
2010-03-17 01:25:12 +08:00
|
|
|
---------------------------
|
|
|
|
|
|
|
|
|
|
What: xt_NOTRACK
|
|
|
|
|
Files: net/netfilter/xt_NOTRACK.c
|
|
|
|
|
When: April 2011
|
|
|
|
|
Why: Superseded by xt_CT
|
|
|
|
|
Who: Netfilter developer team <netfilter-devel@vger.kernel.org>
|
2010-05-12 15:05:35 +08:00
|
|
|
|
2010-05-20 08:09:40 +08:00
|
|
|
----------------------------
|
|
|
|
|
|
2010-03-26 08:06:55 +08:00
|
|
|
What: IRQF_DISABLED
|
|
|
|
|
When: 2.6.36
|
|
|
|
|
Why: The flag is a NOOP as we run interrupt handlers with interrupts disabled
|
|
|
|
|
Who: Thomas Gleixner <tglx@linutronix.de>
|
2010-05-20 08:09:40 +08:00
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
2010-07-24 04:59:09 +08:00
|
|
|
What: The acpi_sleep=s4_nonvs command line option
|
|
|
|
|
When: 2.6.37
|
|
|
|
|
Files: arch/x86/kernel/acpi/sleep.c
|
|
|
|
|
Why: superseded by acpi_sleep=nonvs
|
|
|
|
|
Who: Rafael J. Wysocki <rjw@sisk.pl>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
2010-08-11 09:03:26 +08:00
|
|
|
|
|
|
|
|
What: PCI DMA unmap state API
|
|
|
|
|
When: August 2012
|
|
|
|
|
Why: PCI DMA unmap state API (include/linux/pci-dma.h) was replaced
|
|
|
|
|
with DMA unmap state API (DMA unmap state API can be used for
|
|
|
|
|
any bus).
|
|
|
|
|
Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
2010-08-11 09:03:26 +08:00
|
|
|
|
|
|
|
|
What: DMA_xxBIT_MASK macros
|
|
|
|
|
When: Jun 2011
|
|
|
|
|
Why: DMA_xxBIT_MASK macros were replaced with DMA_BIT_MASK() macros.
|
|
|
|
|
Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
2010-10-28 06:33:38 +08:00
|
|
|
What: namespace cgroup (ns_cgroup)
|
|
|
|
|
When: 2.6.38
|
|
|
|
|
Why: The ns_cgroup leads to some problems:
|
|
|
|
|
* cgroup creation is out-of-control
|
|
|
|
|
* cgroup name can conflict when pids are looping
|
|
|
|
|
* it is not possible to have a single process handling
|
|
|
|
|
a lot of namespaces without falling in a exponential creation time
|
|
|
|
|
* we may want to create a namespace without creating a cgroup
|
|
|
|
|
|
|
|
|
|
The ns_cgroup is replaced by a compatibility flag 'clone_children',
|
|
|
|
|
where a newly created cgroup will copy the parent cgroup values.
|
|
|
|
|
The userspace has to manually create a cgroup and add a task to
|
|
|
|
|
the 'tasks' file.
|
|
|
|
|
Who: Daniel Lezcano <daniel.lezcano@free.fr>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
2010-10-06 22:42:43 +08:00
|
|
|
What: iwlwifi disable_hw_scan module parameters
|
|
|
|
|
When: 2.6.40
|
|
|
|
|
Why: Hareware scan is the prefer method for iwlwifi devices for
|
|
|
|
|
scanning operation. Remove software scan support for all the
|
|
|
|
|
iwlwifi devices.
|
|
|
|
|
|
|
|
|
|
Who: Wey-Yi Guy <wey-yi.w.guy@intel.com>
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----------------------------
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2010-10-27 00:55:25 +08:00
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2010-09-22 10:55:07 +08:00
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What: access to nfsd auth cache through sys_nfsservctl or '.' files
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in the 'nfsd' filesystem.
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When: 2.6.40
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Why: This is a legacy interface which have been replaced by a more
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dynamic cache. Continuing to maintain this interface is an
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unnecessary burden.
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Who: NeilBrown <neilb@suse.de>
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|
----------------------------
|
2010-11-16 05:40:38 +08:00
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2010-12-14 23:23:10 +08:00
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What: cancel_rearming_delayed_work[queue]()
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When: 2.6.39
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Why: The functions have been superceded by cancel_delayed_work_sync()
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quite some time ago. The conversion is trivial and there is no
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in-kernel user left.
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Who: Tejun Heo <tj@kernel.org>
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|
|
----------------------------
|
2011-01-13 04:55:10 +08:00
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|
|
What: Legacy, non-standard chassis intrusion detection interface.
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When: June 2011
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|
|
Why: The adm9240, w83792d and w83793 hardware monitoring drivers have
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|
legacy interfaces for chassis intrusion detection. A standard
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|
|
interface has been added to each driver, so the legacy interface
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|
|
can be removed.
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Who: Jean Delvare <khali@linux-fr.org>
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|
|
----------------------------
|
2011-02-02 07:52:31 +08:00
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|
2011-01-19 00:32:40 +08:00
|
|
|
What: xt_connlimit rev 0
|
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|
|
When: 2012
|
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|
|
Who: Jan Engelhardt <jengelh@medozas.de>
|
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|
|
Files: net/netfilter/xt_connlimit.c
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|
|
----------------------------
|
2011-02-20 11:17:35 +08:00
|
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|
|
2011-02-02 07:52:31 +08:00
|
|
|
What: noswapaccount kernel command line parameter
|
|
|
|
|
When: 2.6.40
|
|
|
|
|
Why: The original implementation of memsw feature enabled by
|
|
|
|
|
CONFIG_CGROUP_MEM_RES_CTLR_SWAP could be disabled by the noswapaccount
|
|
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|
|
kernel parameter (introduced in 2.6.29-rc1). Later on, this decision
|
|
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|
|
turned out to be not ideal because we cannot have the feature compiled
|
|
|
|
|
in and disabled by default and let only interested to enable it
|
|
|
|
|
(e.g. general distribution kernels might need it). Therefore we have
|
|
|
|
|
added swapaccount[=0|1] parameter (introduced in 2.6.37) which provides
|
|
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|
|
the both possibilities. If we remove noswapaccount we will have
|
|
|
|
|
less command line parameters with the same functionality and we
|
|
|
|
|
can also cleanup the parameter handling a bit ().
|
|
|
|
|
Who: Michal Hocko <mhocko@suse.cz>
|
|
|
|
|
|
|
|
|
|
----------------------------
|
2011-03-16 04:03:27 +08:00
|
|
|
|
2011-03-16 03:16:20 +08:00
|
|
|
What: ipt_addrtype match include file
|
|
|
|
|
When: 2012
|
|
|
|
|
Why: superseded by xt_addrtype
|
|
|
|
|
Who: Florian Westphal <fw@strlen.de>
|
|
|
|
|
Files: include/linux/netfilter_ipv4/ipt_addrtype.h
|
|
|
|
|
|
|
|
|
|
----------------------------
|
2011-03-20 21:50:53 +08:00
|
|
|
|
|
|
|
|
What: i2c_driver.attach_adapter
|
|
|
|
|
i2c_driver.detach_adapter
|
|
|
|
|
When: September 2011
|
|
|
|
|
Why: These legacy callbacks should no longer be used as i2c-core offers
|
|
|
|
|
a variety of preferable alternative ways to instantiate I2C devices.
|
|
|
|
|
Who: Jean Delvare <khali@linux-fr.org>
|
|
|
|
|
|
|
|
|
|
----------------------------
|