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useless ath9k commit logs

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Jiri Slaby wrote:
>     ath9k: Fix bug in ANI channel handling
> 
>     When processing MIB interrupts, OFDM and CCK error
>     handling routines for low RSSI values have to be invoked
>     only when the channel mode is 11G/11B. Since HT channels
>     will also fall under the bands 2Ghz/5Ghz, check appropriately.

This was a long standing bug. The original behaviour was changed
by the commit: 38b33707a1ec77f7b4c92ae41cfe93318014f5bf (in wireless-testing).

The bug was identified by code review.
And yep, this should have been mentioned in the commit log.
Sorry about that.

>     ath9k: Maintain monotonicity of PER while going across different phy
> 
>     Monotonicity of packet error rate should be kept when moving
>     from one phy to another (legacy to ht, ht single stream to dual,
>     etc). Current code skips updating per for other phys.

This is also a bug fix. Rate control gets bumpy when switching between
APs operating in different modes. This was identified by internal testing.

Hope this helps.

Sujith
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