tree 663224eb02449823db0b3ccef21d8deb14867194
parent 0217eefa64509d63fbe8d1205310bafb2355cf4d
author Felix Fietkau <nbd@nbd.name> 1481744820 +0100
committer Johannes Berg <johannes.berg@intel.com> 1481796472 +0100

mac80211: minstrel: store probability variance instead of standard deviation

This avoids the costly int_sqrt calls in the statistics update and moves
it to the debugfs code instead.
This also fixes an overflow in the previous standard deviation
calculation.

Signed-off-by: Thomas Huehn <thomas.huehn@evernet-eg.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>