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Vincenzo Maffione authored
In iflib_device_register(), the CTX_LOCK is acquired first and then IFNET_WLOCK is acquired by ether_ifattach(). However, in netmap_hw_reg() we do the opposite: IFNET_RLOCK is acquired first, and then CTX_LOCK is acquired by iflib_netmap_register(). Fix this LOR issue by wrapping the CTX_LOCK/UNLOCK calls in iflib_device_register with an additional IFNET_WLOCK. This is safe since the IFNET_WLOCK is recursive. MFC after: 1 month
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