Re: [PATCH v2 2/2] ASoC: rsnd: ssi: remove unnesessary period_pos

From: Kuninori Morimoto
Date: Fri Dec 08 2017 - 01:07:13 EST



Hi Jiada

Thank you for your feedback

> >> Further more, if the passed 'byte' amount to
> >> rsnd_ssi_pointer_update() is more than byte_per_period.
> >> the calculation of next_period_byte isn't correct.
> > Is it really happen ??
> >
> > Basically, I have no objection about this patch,
> > but this explanation is very strange for me...
> No, I didn't see the issue,
> but the implementation of rsnd_ssi_pointer_update(), behaves like
> it knows all caller will always pass 'byte' no larger than byte_per_period,
> without any check internally.
>
> I am ok to remove this explanation from commit message,
> what do you think?

This function is used from PIO mode only now, and "byte" is sizeof(u32)
(Its size was "byte_per_period" when DMA mode used).
This "Further more" case never happen.
Removing from commit message is better for reader, IMO.

Best regards
---
Kuninori Morimoto