On 09/20/2018 07:32 AM, YueHaibing wrote: > The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', > which is a typedef for an enum type, so make sure the implementation in > this driver has returns 'netdev_tx_t' value, and change the function > return type to netdev_tx_t. > May be I missed smth, but it's acceptable to report standard error codes from .xmit() callback as per dev_xmit_complete(). -- regards, -grygorii