From: David Brownell <david-b@pacbell.net>
To: Mark Underwood <basicmark@yahoo.com>
Subject: Re: [PATCH 2.6-git] SPI core refresh
Date: Sat, 3 Dec 2005 15:50:01 -0800
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On Saturday 03 December 2005 9:10 am, Mark Underwood wrote:
> 
> David, how would you feel about adding a NOT_DMAABLE flag in the spi_message structure?

Not good; it'd mean that every controller driver would have to support
both PIO and DMA modes.  This minor issue (despite the noise!) isn't
worth making such an intrusive demand on all drivers.


> The other solution is to do a kmalloc for each caller (would could try to be smart and only do
> that if the buffer is being used). 

That's far preferable.  You could just submit the patch against rc3-mm1
and that'll do the job.

- Dave

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