[PATCH] wifi: ath12k: fix the issue that calculation of ack signal strength

[Kalle Valo]

Jeff Johnson <quic_jjohnson at quicinc.com> writes:

> On 5/10/2024 8:09 PM, Lingbo Kong wrote:
>
> Your subject doesn't quite make sense.
>
> Perhaps something like: fix ack signal strength calculation
>
>> Currently, the calculation of ack signal strength is incorrect.
>> 
>> This is because before calculating the ack signal strength, ath12k need
>> to determine whether the hardware and firmware support db2dbm, if the
>
> please split this run-on sentence, s/, if/. If/
>
>> hardware and firmware support db2dbm, do not need to add noise floor,
>> otherwise, need to add noise floor.
>> 
>> Besides, the value of ack_rssi passed by firmware to ath12k should be a
>> signed number, so change its type to s8.
>> 
>> This patch affects QCN9274 and WCN7850 because they have the same issue.
>> 
>> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
>> 
>> Signed-off-by: Lingbo Kong <quic_lingbok at quicinc.com>
>
> Code LGTM & Kalle can fix my comments in pending so don't respin unless there
> are additional comments.

Fixed Jeff's comments. I also removed both db2dbm variables, I felt that
they were not necessary. Please check:

https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/commit/?h=pending&id=c7b6d4df1ac8427ac758f35b7c1aa641fa8df75f

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