Re: [PATCH 1/5] ASoC: sh: rz-ssi: Drop calling rz_ssi_pio_recv() recursively
From: Lad, Prabhakar
Date: Mon Jan 10 2022 - 15:16:37 EST
On Mon, Jan 10, 2022 at 5:48 PM Cezary Rojewski
<cezary.rojewski@xxxxxxxxx> wrote:
>
> 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.
>
My bad! I'll update the commit message.
CHeers,
Prabhakar