The subject isn't very clear, because it doesn't say which subsystem is
being modified. You should use something like
virtio: allocate temporary VirtQueueElementOld on heap
The rest of the commit message is okay, but the lines are a bit long.
Usually we use 70-75 characters only.
On 11/03/2016
As per the list of functions in
http://wiki.qemu.org/BiteSizedTasks#Large_frames,
qemu_get_virtqueue_element and qemu_put_virtqueue_element have large arrays on
stack
Hence, moving them to heap. This reduced their stack size from something 49248
to fit into less than 200
Signed-off-by: Jaya Ti