x86 idle APM: deprecate CONFIG_APM_CPU_IDLE

[firefly-linux-kernel-4.4.55.git] / Documentation / feature-removal-schedule.txt

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 5540615ac26c12a5986bdea47bd8fbc6c1fa3c05..fc505c1b476280286b7459d39a3698f5e60358f9 100644 (file)
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -14,6 +14,16 @@ 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:  PRISM54
 When:  2.6.34