diff options
Diffstat (limited to 'Documentation/feature-removal-schedule.txt')
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 117 |
1 files changed, 60 insertions, 57 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 492e81df296..72e238465b0 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -6,6 +6,42 @@ be removed from this file. --------------------------- +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 @@ -35,17 +71,6 @@ Who: Luis R. Rodriguez <lrodriguez@atheros.com> --------------------------- -What: AR9170USB -When: 2.6.40 - -Why: This driver is deprecated and the firmware is no longer - maintained. The replacement driver "carl9170" has been - around for a while, so the devices are still supported. - -Who: Christian Lamparter <chunkeey@googlemail.com> - ---------------------------- - What: IRQF_SAMPLE_RANDOM Check: IRQF_SAMPLE_RANDOM When: July 2009 @@ -226,7 +251,7 @@ Who: Zhang Rui <rui.zhang@intel.com> What: CONFIG_ACPI_PROCFS_POWER When: 2.6.39 Why: sysfs I/F for ACPI power devices, including AC and Battery, - has been working in upstream kenrel since 2.6.24, Sep 2007. + has been working in upstream kernel since 2.6.24, Sep 2007. In 2.6.37, we make the sysfs I/F always built in and this option disabled by default. Remove this option and the ACPI power procfs interface in 2.6.39. @@ -273,16 +298,6 @@ 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 - ---------------------------- - What: Ability for non root users to shm_get hugetlb pages based on mlock resource limits When: 2.6.31 @@ -405,16 +420,6 @@ Who: anybody or Florian Mickler <florian@mickler.org> ---------------------------- -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> - ----------------------------- - What: KVM paravirt mmu host support When: January 2011 Why: The paravirt mmu host support is slower than non-paravirt mmu, both @@ -460,14 +465,6 @@ Who: Thomas Gleixner <tglx@linutronix.de> ---------------------------- -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> - ----------------------------- - What: PCI DMA unmap state API When: August 2012 Why: PCI DMA unmap state API (include/linux/pci-dma.h) was replaced @@ -484,23 +481,6 @@ Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> ---------------------------- -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> - ----------------------------- - What: iwlwifi disable_hw_scan module parameters When: 2.6.40 Why: Hareware scan is the prefer method for iwlwifi devices for @@ -580,3 +560,26 @@ Why: These legacy callbacks should no longer be used as i2c-core offers Who: Jean Delvare <khali@linux-fr.org> ---------------------------- + +What: Support for UVCIOC_CTRL_ADD in the uvcvideo driver +When: 2.6.42 +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 +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 +Why: Superseded by the UVCIOC_CTRL_QUERY ioctl. +Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + +---------------------------- |