The sinfo->chains field is a bitmask for filled values in chain_signal
and chain_signal_avg, not a count. Treat it as such so that the driver
can properly report per-chain RSSI information.
Before (MIMO mode):
$ iw dev wlan0 station dump
...
signal: -51 [-51] dBm
After (MIMO mode):
$ iw dev wlan0 station dump
...
signal: -53 [-53, -54] dBm
Fixes:
cae355dc90db ("brcmfmac: Add RSSI information to get_station.")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210506132010.3964484-1-alsi@bang-olufsen.dk
count_rssi = 0;
for (i = 0; i < BRCMF_ANT_MAX; i++) {
if (sta_info_le.rssi[i]) {
+ sinfo->chains |= BIT(count_rssi);
sinfo->chain_signal_avg[count_rssi] =
sta_info_le.rssi[i];
sinfo->chain_signal[count_rssi] =
}
if (count_rssi) {
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL);
- sinfo->chains = count_rssi;
-
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
total_rssi /= count_rssi;
sinfo->signal = total_rssi;