[PATCH 5/7] net/nfb: support setting Rx MTU

[Martin Spinler]

> Since mtu is 16 bit value, you need to use uint32_t to avoid
> overflow.
> 
> Something like:
> +	uint32_t frame_len = (uint32_t)mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
> +	if (frame_len > priv->frame_len_max_cap)
> +		return -EINVAL;
> 
> +	for (i = 0; i < intl->max_rxmac; ++i)
> +		nc_rxmac_set_frame_length(intl->rxmac[i], frame_len, RXMAC_FRAME_LENGTH_MAX);

Thank you, this check is cleaner.