Re: [PATCH] dc395x: dynamically map scatter-gather for PIO (take 2)

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On Thu, 13 Apr 2006, Randy.Dunlap wrote:

> On Sun, 2 Apr 2006 21:57:43 +0200 (CEST) Guennadi Liakhovetski wrote:
> 
> > Hello all,
> > 
> > This time I really mean it:-)
> 
> Hi Guennadi,
> James pointed me at this patch since I have aha152x also having
> problems with using page_address() while trying to do PIO.
> I see a NULL pointer during a data-out phase.  I'll attempt
> to use the kmap_atomic() support that you have added in the
> aha152x driver.

Would be great to put these functions under some more extensive testing! 
I also want to use them in tmscsim, but there I do not have a test case 
for PIO:-(

> > + * scsi_kmap_atomic_sg - find and atomically map an sg-elemnt
> 
> s/elemnt/element/

Thanks.

> > +/**
> > + * scsi_kunmap_atomic_sg - atomically unmap a virtual address, previously
> > + *			   mapped with scsi_kmap_atomic_sg
> 
> First line of function kernel-doc must be just one line long.  Sorry.  :(
> You can add more descriptive text after the parameter(s) plus one
> blank line if you want to do it that way.

Sure, thanks. I'll do the necessary modifications in the next version of 
the patch. I'd wait a bit more to see if there are some more comments.

Regards
Guennadi
---
Guennadi Liakhovetski
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