Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb...

[pandora-kernel.git] / Documentation / feature-removal-schedule.txt

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index ff31b1c..1a9446b 100644 (file)
--- 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