Re: [PATCH 1/3] virtio_net: Stop doing DMA from the stack

[Joerg Roedel]

On Tue, Oct 27, 2015 at 06:17:08PM -0700, Andy Lutomirski wrote:
> From: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
> 
> Once virtio starts using the DMA API, we won't be able to safely DMA
> from the stack.  virtio-net does a couple of config DMA requests
> from small stack buffers -- switch to using dynamically-allocated
> memory.
> 
> This should have no effect on any performance-critical code paths.
> 
> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
> ---
>  drivers/net/virtio_net.c | 53 ++++++++++++++++++++++++++++++++----------------
>  1 file changed, 36 insertions(+), 17 deletions(-)

Reviewed-by: Joerg Roedel <jroedel@xxxxxxx>
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