mac80211_hwsim: enforce PS_MANUAL_POLL to be set after PS_ENABLED
authorAdiel Aloni <adiel.aloni@intel.com>
Fri, 1 Dec 2017 11:50:53 +0000 (13:50 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 19 Mar 2018 07:42:55 +0000 (08:42 +0100)
commitf6ae26c0803393b612aa46db6cf831e5f50598f8
tree68b1891efc89c19e7827c4e8c7f692bde1dace95
parent9bece8dda3674fb82139fc9b025cc1fae373fb30
mac80211_hwsim: enforce PS_MANUAL_POLL to be set after PS_ENABLED

[ Upstream commit e16ea4bb516bc21ea2202f2107718b29218bea59 ]

Enforce using PS_MANUAL_POLL in ps hwsim debugfs to trigger a poll,
only if PS_ENABLED was set before.
This is required due to commit c9491367b759 ("mac80211: always update the
PM state of a peer on MGMT / DATA frames") that enforces the ap to
check only mgmt/data frames ps bit, and then update station's power save
accordingly.
When sending only ps-poll (control frame) the ap will not be aware that
the station entered power save.
Setting ps enable before triggering ps_poll, will send NDP with PM bit
enabled first.

Signed-off-by: Adiel Aloni <adiel.aloni@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/wireless/mac80211_hwsim.c