diff options
| author | Adiel Aloni <adiel.aloni@intel.com> | 2017-12-01 14:50:53 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2017-12-11 14:18:15 +0300 |
| commit | e16ea4bb516bc21ea2202f2107718b29218bea59 (patch) | |
| tree | ce952cf56e0008ae476dce52edb881128ae1515d /drivers/net/wireless/mac80211_hwsim.c | |
| parent | a9d09bc1bcac89996fc961b1ae023d72171af7b6 (diff) | |
| download | linux-e16ea4bb516bc21ea2202f2107718b29218bea59.tar.xz | |
mac80211_hwsim: enforce PS_MANUAL_POLL to be set after PS_ENABLED
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>
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
| -rw-r--r-- | drivers/net/wireless/mac80211_hwsim.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 10b075a46b26..45cca54c05bf 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -727,16 +727,21 @@ static int hwsim_fops_ps_write(void *dat, u64 val) val != PS_MANUAL_POLL) return -EINVAL; - old_ps = data->ps; - data->ps = val; - - local_bh_disable(); if (val == PS_MANUAL_POLL) { + if (data->ps != PS_ENABLED) + return -EINVAL; + local_bh_disable(); ieee80211_iterate_active_interfaces_atomic( data->hw, IEEE80211_IFACE_ITER_NORMAL, hwsim_send_ps_poll, data); - data->ps_poll_pending = true; - } else if (old_ps == PS_DISABLED && val != PS_DISABLED) { + local_bh_enable(); + return 0; + } + old_ps = data->ps; + data->ps = val; + + local_bh_disable(); + if (old_ps == PS_DISABLED && val != PS_DISABLED) { ieee80211_iterate_active_interfaces_atomic( data->hw, IEEE80211_IFACE_ITER_NORMAL, hwsim_send_nullfunc_ps, data); |