Comment 3 for bug 221203

Following is some raw feedback got from Marvell FAE

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This appears to be a cosmetic bug; in order to look into this I would
need more information from you:
 > The Silicon revision you are using.
 > The Marvell Driver version you are using.

Meanwhile I would recommend you to take a look at alternative command to
"iwconfig" that can give you the link quality information:

iwpriv ethX getSNR <n>
iwpriv ethX getNF <n>
iwpriv ethX getRSSI <n>

The bellow explanation is taken from the README file:

"getSNR
 This command gets the average and non average value of Signal to
Noise Ratio of Beacon and Data.

 where value is:
   0 -- Beacon non-average.
          1 -- Beacon average.
          2 -- Data non-average.
          3 -- Data average.

 If no value is given, all four values are returned in the order
mentioned above.

 Note: This command is available only when STA is connected.

getRSSI
 This command gets the average and non average value os Receive
Signal Strength of Beacon and Data.

 where value is:
   0 -- Beacon non-average.
          1 -- Beacon average.
          2 -- Data non-average.
          3 -- Data average.

 Note: This command is available only when STA is connected.

getNF
 This command gets the average and non average value of Noise
Floor of Beacon and Data.

 where value is:
   0 -- Beacon non-average.
          1 -- Beacon average.
          2 -- Data non-average.
          3 -- Data average.

 Note: This command is available only when STA is connected."

I believe these commands can deliver the information you are looking
for, specially " iwpriv ethX getRSSI <n>"