Re: [PATCH V3 15/15] [media] marvell-ccic: add 3 frame buffers support in DMA_CONTIG mode

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On Sun, 16 Dec 2012 14:34:31 -0800
Albert Wang <twang13@xxxxxxxxxxx> wrote:

> >What is the purpose of the "usebufs" field?  The code maintains it in
> >various places, but I don't see anywhere that actually uses that value for
> >anything.
> >  
> [Albert Wang] Two buffers mode doesn't need it.
> But Three buffers mode need it indicates which conditions we need set the single buffer flag.
> I used "tribufs" as the name in the previous version, but it looks it's a confused name when we merged
> Two buffers mode and Three buffers mode with same code by removing #ifdef based on your comments months ago. :)
> So we just changed the name with "usebufs".

OK, I misread the code a bit, sorry.  I do find the variable confusing
still, but it clearly does play a role.

I think that using three buffers by default would make sense.  I don't
think that increased overruns are an unbreakable ABI feature :)

Feel free to add my ack to this one.

Thanks,

jon
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