Re: [spi-devel-general] Re: [PATCH/RFC] SPI: add DMAUNSAFE analog

[Greg KH <gr...@kr...>]

On Thu, Dec 15, 2005 at 07:34:59PM -0800, Andy Isaacson wrote:
> Now one could argue that this design is broken (requiring a slow serial
> bus access to ack an irq means that you end up with very high-latency
> interrupt handlers) but it's my impression that such designs are not
> unheard of in the embedded world.

Then you just atomically allocate a buffer like all of the current
kernel drivers do :)

Come on people, this really isn't an issue...

thanks,

greg k-h