[PATCH AUTOSEL for 4.9 165/219] mac80211_hwsim: use per-interface power level

Sasha Levin
2018-03-03T22:36:07Z

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 1d5e9f80ab021e3e1f9436627a4ad07a143ccb2c ]

When channel contexts are used, there's no global power level
(the power_level is always 0). Use the per-interface TX power
in mac80211_hwsim to have a proper setting for both cases.

This fixes the bgscan_simple and bgscan_learn test cases when
the number of channels advertised by hwsim is >1 by default.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/net/wireless/mac80211_hwsim.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 4b462dc21c41..990c857992f6 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -552,8 +552,6 @@ struct mac80211_hwsim_data {
/* wmediumd portid responsible for netgroup of this radio */
u32 wmediumd;

- int power_level;
-
/* difference between this hw's clock and the real clock, in usecs */
s64 tsf_offset;
s64 bcn_delta;
@@ -1208,7 +1206,9 @@ static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
rx_status.flag |= RX_FLAG_SHORT_GI;
/* TODO: simulate real signal strength (and optional packet loss) */
- rx_status.signal = data->power_level - 50;
+ rx_status.signal = -50;
+ if (info->control.vif)
+ rx_status.signal += info->control.vif->bss_conf.txpower;

if (data->ps != PS_DISABLED)
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
@@ -1607,7 +1607,6 @@ static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)

WARN_ON(data->channel && data->use_chanctx);

- data->power_level = conf->power_level;
if (!data->started || !data->beacon_int)
tasklet_hrtimer_cancel(&data->beacon_timer);
else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
@@ -2212,7 +2211,6 @@ static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
"d_tx_failed",
"d_ps_mode",
"d_group",
- "d_tx_power",
};

#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
@@ -2249,7 +2247,6 @@ static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
data[i++] = ar->tx_failed;
data[i++] = ar->ps;
data[i++] = ar->group;
- data[i++] = ar->power_level;

WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
}
--
2.14.1