---------------------------
+What: x86 floppy disable_hlt
+When: 2012
+Why: ancient workaround of dubious utility clutters the
+ code used by everybody else.
+Who: Len Brown <len.brown@intel.com>
+
+---------------------------
+
+What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle
+When: 2012
+Why: This optional sub-feature of APM is of dubious reliability,
+ and ancient APM laptops are likely better served by calling HLT.
+ Deleting CONFIG_APM_CPU_IDLE allows x86 to stop exporting
+ the pm_idle function pointer to modules.
+Who: Len Brown <len.brown@intel.com>
+
+----------------------------
+
+What: x86_32 "no-hlt" cmdline param
+When: 2012
+Why: remove a branch from idle path, simplify code used by everybody.
+ This option disabled the use of HLT in idle and machine_halt()
+ for hardware that was flakey 15-years ago. Today we have
+ "idle=poll" that removed HLT from idle, and so if such a machine
+ is still running the upstream kernel, "idle=poll" is likely sufficient.
+Who: Len Brown <len.brown@intel.com>
+
+----------------------------
+
+What: x86 "idle=mwait" cmdline param
+When: 2012
+Why: simplify x86 idle code
+Who: Len Brown <len.brown@intel.com>
+
+----------------------------
+
What: PRISM54
When: 2.6.34
Check: drivers/staging/cs5535_gpio/cs5535_gpio.c
Why: A newer driver replaces this; it is drivers/gpio/cs5535-gpio.c, and
integrates with the Linux GPIO subsystem. The old driver has been
- moved to staging, and will be removed altogether around 2.6.40.
+ moved to staging, and will be removed altogether around 3.0.
Please test the new driver, and ensure that the functionality you
need and any bugfixes from the old driver are available in the new
one.
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>
-
----------------------------
-
-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
+Who: Michael Buesch <m@bues.ch>
---------------------------
----------------------------
What: iwlwifi 50XX module parameters
-When: 2.6.40
+When: 3.0
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
----------------------------
What: iwl4965 alias support
-When: 2.6.40
+When: 3.0
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.
----------------------------
What: iwlwifi disable_hw_scan module parameters
-When: 2.6.40
+When: 3.0
Why: Hareware scan is the prefer method for iwlwifi devices for
scanning operation. Remove software scan support for all the
iwlwifi devices.
What: access to nfsd auth cache through sys_nfsservctl or '.' files
in the 'nfsd' filesystem.
-When: 2.6.40
+When: 3.0
Why: This is a legacy interface which have been replaced by a more
dynamic cache. Continuing to maintain this interface is an
unnecessary burden.
----------------------------
What: noswapaccount kernel command line parameter
-When: 2.6.40
+When: 3.0
Why: The original implementation of memsw feature enabled by
CONFIG_CGROUP_MEM_RES_CTLR_SWAP could be disabled by the noswapaccount
kernel parameter (introduced in 2.6.29-rc1). Later on, this decision
----------------------------
What: Support for UVCIOC_CTRL_ADD in the uvcvideo driver
-When: 2.6.42
+When: 3.2
Why: The information passed to the driver by this ioctl is now queried
dynamically from the device.
Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
----------------------------
What: Support for UVCIOC_CTRL_MAP_OLD in the uvcvideo driver
-When: 2.6.42
+When: 3.2
Why: Used only by applications compiled against older driver versions.
Superseded by UVCIOC_CTRL_MAP which supports V4L2 menu controls.
Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
----------------------------
What: Support for UVCIOC_CTRL_GET and UVCIOC_CTRL_SET in the uvcvideo driver
-When: 2.6.42
+When: 3.2
Why: Superseded by the UVCIOC_CTRL_QUERY ioctl.
Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff