[FS#803] NL80211_STA_INFO_INACTIVE_TIME incorrect value for IBSS mode with a10k-ct.

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Kirill Lukonin (klukonin) 

Attached to Project - LEDE Project
Summary - NL80211_STA_INFO_INACTIVE_TIME   incorrect value for IBSS mode with a10k-ct.
Task Type - Bug Report
Category - Packages
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - 
 - ar71xx affected
 - latest LEDE trunk affected and may be older versions
 - Steps to reproduce

Buid current LEDE trunk with a10k-ct driver and CT firmware for QCA988x.
Flash devices with firmware.
Create IBSS interface for 2 or more ath10k devices and connect them.

   
iwinfo shows negative value for last activity. Value is rising. TX traffic can't pass through interface.
All incoming packets come with "unknown" bitrate.

root at LEDE:~# iwinfo mesh5_0 assoclist
84:16:F9:B1:A0:3E  -39 dBm / -103 dBm (SNR 64)  -230820 ms ago
        RX: unknown                                      794 Pkts.
        TX: 6.0 MBit/s                                     0 Pkts.

root at LEDE:~# iwinfo mesh5_0 assoclist
84:16:F9:B1:A0:3E  -39 dBm / -103 dBm (SNR 64)  -127810 ms ago
        RX: unknown                                     2828 Pkts.
        TX: 6.0 MBit/s  
                                   0 Pkts.
root at LEDE:~# iwinfo mesh5_0 assoclist
84:16:F9:B1:A0:3E  -40 dBm / -103 dBm (SNR 63)  -117860 ms ago
        RX: unknown                                     3022 Pkts.
        TX: 6.0 MBit/s                                     0 Pkts.



 According to iw output this value is close to th "unsigned long" value limit
root at LEDE:~# iw mesh5_0 station dump
Station 18:a6:f7:3e:b4:de (on mesh5_0)
        inactive time:  4294805756 ms
        rx bytes:       152352
        rx packets:     2208
        tx bytes:       0
        tx packets:     0
        tx retries:     0
        tx failed:      0
        rx drop misc:   0
        signal:         -39 dBm
        signal avg:     -37 dBm
        tx bitrate:     6.0 MBit/s
        authorized:     yes
        authenticated:  yes
        associated:     yes
        preamble:       long
        WMM/WME:        yes
        MFP:            no
        TDLS peer:      no
        DTIM period:    0
        beacon interval:100
        short slot time:yes
        connected time: 113 seconds


root at LEDE:~# iw mesh5_0 station dump
Station 18:a6:f7:3e:b4:de (on mesh5_0)
        inactive time:  4294878176 ms
        rx bytes:       250056
        rx packets:     3624
        tx bytes:       0
        tx packets:     0
        tx retries:     0
        tx failed:      0
        rx drop misc:   0
        signal:         -40 dBm
        signal avg:     -39 dBm
        tx bitrate:     6.0 MBit/s
        authorized:     yes
        authenticated:  yes
        associated:     yes
        preamble:       long
        WMM/WME:        yes
        MFP:            no
        TDLS peer:      no
        DTIM period:    0
        beacon interval:100
        short slot time:yes
        connected time: 185 seconds



After some time (3-5 minutes) the value overflows and starting from zero with normal values.

root at LEDE:~# iwinfo mesh5_0 assoclist
84:16:F9:B1:A0:3E  -38 dBm / -103 dBm (SNR 65)  80 ms ago
        RX: unknown                                     5732 Pkts.
        TX: 6.0 MBit/s                                     0 Pkts.

root at LEDE:~# iw mesh5_0 station dump
Station 18:a6:f7:3e:b4:de (on mesh5_0)
        inactive time:  50 ms
        rx bytes:       399372
        rx packets:     5788
        tx bytes:       0
        tx packets:     0
        tx retries:     0
        tx failed:      0
        rx drop misc:   0
        signal:         -41 dBm
        signal avg:     -39 dBm
        tx bitrate:     6.0 MBit/s
        authorized:     yes
        authenticated:  yes
        associated:     yes
        preamble:       long
        WMM/WME:        yes
        MFP:            no
        TDLS peer:      no
        DTIM period:    0
        beacon interval:100
        short slot time:yes
        connected time: 296 seconds




More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=803