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Re: [PATCH] B43: Handle DMA RX descriptor underrun

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On 05/02/2013 08:06 AM, Michael Büsch wrote:
On Tue, 23 Apr 2013 21:45:11 +0200 (CEST)
Thommy Jakobsson <thommyj@xxxxxxxxx> wrote:

From: Thommy Jakobsson <thommyj@xxxxxxxxx>

Add handling of rx descriptor underflow. This fixes a fault that could
happen on slow machines, where data is received faster than the CPU can
handle. In such a case the device will use up all rx descriptors and
refuse to send any more data before confirming that it is ok. This
patch enables necessary interrupt to discover such a situation and will
handle them by dropping everything in the ring buffer.

Reviewed-by: Michael Buesch <m@xxxxxxx>
Signed-off-by: Thommy Jakobsson <thommyj@xxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>

Anybody interested in porting this to b43legacy (and testing)?

Michael,

I will take care of that. It may take a while due to other projects.

Larry


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