[PATCH 1/5] ASoC: sh: rz-ssi: Drop calling rz_ssi_pio_recv() recursively

Cezary Rojewski cezary.rojewski at intel.com
Mon Jan 10 18:48:39 CET 2022


On 2022-01-10 5:03 PM, Lad, Prabhakar wrote:
> Hi Cezary,
> 
> Thank you for the review.
> 

...

>> Recursion and loops are means for doing something repeatedly. Could you
>> specify _why_ such change was made i.e. the conversion from one method
>> into the other? I bet the code is not being changed for the sake of
>> changing it, the reason is simply missing in the commit message.
>>
> I had feedback from Pavel "recursion is unwelcome in kernel due to
> limited stack use." which I did agree with as a result I have come up
> with this patch. Also to add this driver will later be used on Renesas
> RZ/A2 SoC's which runs with limited memory.

Adding that reasoning to the commits message will prevent questions 
(such as mine) in the future. Thank you for a quick reply and a 
transparent answer.


Regards,
Czarek


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