---------------------------
-What: devfs
-When: July 2005
-Files: fs/devfs/*, include/linux/devfs_fs*.h and assorted devfs
- function calls throughout the kernel tree
-Why: It has been unmaintained for a number of years, has unfixable
- races, contains a naming policy within the kernel that is
- against the LSB, and can be replaced by using udev.
-Who: Greg Kroah-Hartman <greg@kroah.com>
+What: /sys/devices/.../power/state
+ dev->power.power_state
+ dpm_runtime_{suspend,resume)()
+When: July 2007
+Why: Broken design for runtime control over driver power states, confusing
+ driver-internal runtime power management with: mechanisms to support
+ system-wide sleep state transitions; event codes that distinguish
+ different phases of swsusp "sleep" transitions; and userspace policy
+ inputs. This framework was never widely used, and most attempts to
+ use it were broken. Drivers should instead be exposing domain-specific
+ interfaces either to kernel or to userspace.
+Who: Pavel Machek <pavel@suse.cz>
---------------------------
---------------------------
-What: drivers depending on OBSOLETE_OSS_DRIVER
-When: January 2006
+What: drivers that were depending on OBSOLETE_OSS_DRIVER
+ (config options already removed)
+When: before 2.6.19
Why: OSS drivers with ALSA replacements
Who: Adrian Bunk <bunk@stusta.de>
---------------------------
-What: RCU API moves to EXPORT_SYMBOL_GPL
-When: April 2006
-Files: include/linux/rcupdate.h, kernel/rcupdate.c
-Why: Outside of Linux, the only implementations of anything even
- vaguely resembling RCU that I am aware of are in DYNIX/ptx,
- VM/XA, Tornado, and K42. I do not expect anyone to port binary
- drivers or kernel modules from any of these, since the first two
- are owned by IBM and the last two are open-source research OSes.
- So these will move to GPL after a grace period to allow
- people, who might be using implementations that I am not aware
- of, to adjust to this upcoming change.
-Who: Paul E. McKenney <paulmck@us.ibm.com>
-
----------------------------
-
What: raw1394: requests of type RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN
-When: November 2005
+When: November 2006
Why: Deprecated in favour of the new ioctl-based rawiso interface, which is
more efficient. You should really be using libraw1394 for raw1394
access anyway.
-Who: Jody McIntyre <scjody@steamballoon.com>
+Who: Jody McIntyre <scjody@modernduck.com>
+
+---------------------------
+
+What: sbp2: module parameter "force_inquiry_hack"
+When: July 2006
+Why: Superceded by parameter "workarounds". Both parameters are meant to be
+ used ad-hoc and for single devices only, i.e. not in modprobe.conf,
+ therefore the impact of this feature replacement should be low.
+Who: Stefan Richter <stefanr@s5r6.in-berlin.de>
---------------------------
---------------------------
-What: remove EXPORT_SYMBOL(panic_timeout)
-When: April 2006
-Files: kernel/panic.c
-Why: No modular usage in the kernel.
-Who: Adrian Bunk <bunk@stusta.de>
-
----------------------------
+What: sys_sysctl
+When: January 2007
+Why: The same information is available through /proc/sys and that is the
+ interface user space prefers to use. And there do not appear to be
+ any existing user in user space of sys_sysctl. The additional
+ maintenance overhead of keeping a set of binary names gets
+ in the way of doing a good job of maintaining this interface.
-What: remove EXPORT_SYMBOL(insert_resource)
-When: April 2006
-Files: kernel/resource.c
-Why: No modular usage in the kernel.
-Who: Adrian Bunk <bunk@stusta.de>
+Who: Eric Biederman <ebiederm@xmission.com>
---------------------------
---------------------------
-What: EXPORT_SYMBOL(lookup_hash)
-When: January 2006
-Why: Too low-level interface. Use lookup_one_len or lookup_create instead.
-Who: Christoph Hellwig <hch@lst.de>
-
----------------------------
-
What: CONFIG_FORCED_INLINING
When: June 2006
Why: Config option is there to see if gcc is good enough. (in january
---------------------------
-What: au1x00_uart driver
-When: January 2006
-Why: The 8250 serial driver now has the ability to deal with the differences
- between the standard 8250 family of UARTs and their slightly strange
- brother on Alchemy SOCs. The loss of features is not considered an
- issue.
-Who: Ralf Baechle <ralf@linux-mips.org>
-
----------------------------
-
What: eepro100 network driver
When: January 2007
Why: replaced by the e100 driver
---------------------------
+What: drivers depending on OSS_OBSOLETE_DRIVER
+When: options in 2.6.20, code in 2.6.22
+Why: OSS drivers with ALSA replacements
+Who: Adrian Bunk <bunk@stusta.de>
+
+---------------------------
+
What: pci_module_init(driver)
When: January 2007
Why: Is replaced by pci_register_driver(pci_driver).
---------------------------
+What: Usage of invalid timevals in setitimer
+When: March 2007
+Why: POSIX requires to validate timevals in the setitimer call. This
+ was never done by Linux. The invalid (e.g. negative timevals) were
+ silently converted to more or less random timeouts and intervals.
+ Until the removal a per boot limited number of warnings is printed
+ and the timevals are sanitized.
+
+Who: Thomas Gleixner <tglx@linutronix.de>
+
+---------------------------
+
What: I2C interface of the it87 driver
When: January 2007
Why: The ISA interface is faster and should be always available. The I2C
---------------------------
+What: Unused EXPORT_SYMBOL/EXPORT_SYMBOL_GPL exports
+ (temporary transition config option provided until then)
+ The transition config option will also be removed at the same time.
+When: before 2.6.19
+Why: Unused symbols are both increasing the size of the kernel binary
+ and are often a sign of "wrong API"
+Who: Arjan van de Ven <arjan@linux.intel.com>
+
+---------------------------
+
What: mount/umount uevents
When: February 2007
Why: These events are not correct, and do not properly let userspace know
---------------------------
-What: Support for NEC DDB5074 and DDB5476 evaluation boards.
-When: June 2006
-Why: Board specific code doesn't build anymore since ~2.6.0 and no
- users have complained indicating there is no more need for these
- boards. This should really be considered a last call.
-Who: Ralf Baechle <ralf@linux-mips.org>
-
----------------------------
-
What: USB driver API moves to EXPORT_SYMBOL_GPL
When: Febuary 2008
Files: include/linux/usb.h, drivers/usb/core/driver.c
Who: Greg Kroah-Hartman <gregkh@suse.de>
---------------------------
+
+What: find_trylock_page
+When: January 2007
+Why: The interface no longer has any callers left in the kernel. It
+ is an odd interface (compared with other find_*_page functions), in
+ that it does not take a refcount to the page, only the page lock.
+ It should be replaced with find_get_page or find_lock_page if possible.
+ This feature removal can be reevaluated if users of the interface
+ cannot cleanly use something else.
+Who: Nick Piggin <npiggin@suse.de>
+
+---------------------------
+
+What: Support for the Momentum / PMC-Sierra Jaguar ATX evaluation board
+When: September 2006
+Why: Does no longer build since quite some time, and was never popular,
+ due to the platform being replaced by successor models. Apparently
+ no user base left. It also is one of the last users of
+ WANT_PAGE_VIRTUAL.
+Who: Ralf Baechle <ralf@linux-mips.org>
+
+---------------------------
+
+What: Support for the Momentum Ocelot, Ocelot 3, Ocelot C and Ocelot G
+When: September 2006
+Why: Some do no longer build and apparently there is no user base left
+ for these platforms.
+Who: Ralf Baechle <ralf@linux-mips.org>
+
+---------------------------
+
+What: Support for MIPS Technologies' Altas and SEAD evaluation board
+When: September 2006
+Why: Some do no longer build and apparently there is no user base left
+ for these platforms. Hardware out of production since several years.
+Who: Ralf Baechle <ralf@linux-mips.org>
+
+---------------------------
+
+What: Support for the IT8172-based platforms, ITE 8172G and Globespan IVR
+When: September 2006
+Why: Code does no longer build since at least 2.6.0, apparently there is
+ no user base left for these platforms. Hardware out of production
+ since several years and hardly a trace of the manufacturer left on
+ the net.
+Who: Ralf Baechle <ralf@linux-mips.org>
+
+---------------------------
+
+What: Interrupt only SA_* flags
+When: Januar 2007
+Why: The interrupt related SA_* flags are replaced by IRQF_* to move them
+ out of the signal namespace.
+
+Who: Thomas Gleixner <tglx@linutronix.de>
+
+---------------------------
+
+What: i2c-ite and i2c-algo-ite drivers
+When: September 2006
+Why: These drivers never compiled since they were added to the kernel
+ tree 5 years ago. This feature removal can be reevaluated if
+ someone shows interest in the drivers, fixes them and takes over
+ maintenance.
+ http://marc.theaimsgroup.com/?l=linux-mips&m=115040510817448
+Who: Jean Delvare <khali@linux-fr.org>
+
+---------------------------
+
+What: Bridge netfilter deferred IPv4/IPv6 output hook calling
+When: January 2007
+Why: The deferred output hooks are a layering violation causing unusual
+ and broken behaviour on bridge devices. Examples of things they
+ break include QoS classifation using the MARK or CLASSIFY targets,
+ the IPsec policy match and connection tracking with VLANs on a
+ bridge. Their only use is to enable bridge output port filtering
+ within iptables with the physdev match, which can also be done by
+ combining iptables and ebtables using netfilter marks. Until it
+ will get removed the hook deferral is disabled by default and is
+ only enabled when needed.
+
+Who: Patrick McHardy <kaber@trash.net>
+
+---------------------------
+
+What: frame diverter
+When: November 2006
+Why: The frame diverter is included in most distribution kernels, but is
+ broken. It does not correctly handle many things:
+ - IPV6
+ - non-linear skb's
+ - network device RCU on removal
+ - input frames not correctly checked for protocol errors
+ It also adds allocation overhead even if not enabled.
+ It is not clear if anyone is still using it.
+Who: Stephen Hemminger <shemminger@osdl.org>
+
+---------------------------
+
+
+What: PHYSDEVPATH, PHYSDEVBUS, PHYSDEVDRIVER in the uevent environment
+When: Oktober 2008
+Why: The stacking of class devices makes these values misleading and
+ inconsistent.
+ Class devices should not carry any of these properties, and bus
+ devices have SUBSYTEM and DRIVER as a replacement.
+Who: Kay Sievers <kay.sievers@suse.de>
+
+---------------------------
+
+What: i2c-isa
+When: December 2006
+Why: i2c-isa is a non-sense and doesn't fit in the device driver
+ model. Drivers relying on it are better implemented as platform
+ drivers.
+Who: Jean Delvare <khali@linux-fr.org>
+
+---------------------------