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1df0cbd509
Batman-adv prepends a full ethernet header in addition to its own header. This has to be reflected in the MTU calculation, especially since the value is used to set dev->hard_header_len. Introduced by 411d6ed93a5d0601980d3e5ce75de07c98e3a7de ("batman-adv: consider network coding overhead when calculating required mtu") Reported-by: cmsv <cmsv@wirelesspt.net> Reported-by: Martin Hundebøll <martin@hundeboll.net> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>