Hi netdev community, I am again on bug fixing in 6lowpan branch and thought that my needed_headroom and needed_tailroom of net_device are available inside my ndo_start_xmit() callback. In case of a UDP socket, it was not the case. I send a fix now to use skb_expand_copy() to make sure this space is available. (I need to unshare the buffer anyway). I am just curious is this suppose to work like that? I cannot believe that I need to run a realloc() inside my ndo_start_xmit(). If possible, when the net_device is known at socket layer it should allocate the necessary space and I thought this is the designed transmit flow. - Alex -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html