[PATCH v2 1/5] ASoC: sh: rz-ssi: Drop calling rz_ssi_pio_recv() recursively

[Cezary Rojewski]

On 2022-01-15 2:22 AM, Lad Prabhakar wrote:
> Instead of recursively calling rz_ssi_pio_recv() use a loop instead
> to read the samples from RX fifo.
> 
> Inspiration for this patch is to avoid recursion, as recursion is
> unwelcome in kernel due to limited stack use. Also to add this driver
> will later be used on RZ/A2 SoC's which runs with limited memory.
> 
> This also fixes an issue where the return value of rz_ssi_pio_recv()
> was ignored when called recursively.
> 
> Fixes: 03e786bd4341 ("ASoC: sh: Add RZ/G2L SSIF-2 driver")
> Reported-by: Pavel Machek <pavel at denx.de>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
> Reviewed-by: Biju Das <biju.das.jz at bp.renesas.com>
> ---
> v1->v2
> * Used a do while loop
> * Fixed comments pointed by Cezary.

Apart from my previous suggestions which have already been addressed, I 
don't see any issues with the patch, so:

Reviewed-by: Cezary Rojewski <cezary.rojewski at intel.com>


Regards,
Czarek