Changed the real-time patch code to detect recursive calls
to dev_queue_xmit and drop the packet when detected.
Signed-off-by: Mark Beauchemin <mark.beauchemin@sycamorenet.com>
[ ported to latest upstream ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>