Hi, Shouldn't it be obj-$(CONFIG_QCOM_EMAC) instead obj-y? QCOM_EMAC is defined as tristate in the drivers/net/ethernet/qualcomm/Kconfig by this patch, so it should be possible to build it as a *.ko module also. > diff --git a/drivers/net/ethernet/qualcomm/emac/Makefile b/drivers/net/ethernet/qualcomm/emac/Makefile > new file mode 100644 > index 0000000..700ee6e > --- /dev/null > +++ b/drivers/net/ethernet/qualcomm/emac/Makefile > @@ -0,0 +1,7 @@ > +# > +# Makefile for the Qualcomm Technologies, Inc. EMAC Gigabit Ethernet driver > +# > + > +obj-y += qcom-emac.o > + The return type of the method emac_tx_tpd_create() should be void, as it always returns true. > +/* Produce new transmit descriptor */ > +static bool emac_tx_tpd_create(struct emac_adapter *adpt, > + struct emac_tx_queue *tx_q, struct emac_tpd *tpd) > +{ > + u32 *hw_tpd; > + > + tx_q->tpd.last_produce_idx = tx_q->tpd.produce_idx; > + hw_tpd = EMAC_TPD(tx_q, adpt->tpd_size, tx_q->tpd.produce_idx); > + > + if (++tx_q->tpd.produce_idx == tx_q->tpd.count) > + tx_q->tpd.produce_idx = 0; > + > + *(hw_tpd++) = tpd->word[0]; > + *(hw_tpd++) = tpd->word[1]; > + *(hw_tpd++) = tpd->word[2]; > + *hw_tpd = tpd->word[3]; > + > + return true; > +} ... ... ... Seems that there are several unused members in the emac_stats struct: > +struct emac_stats { ... ... Both rx_bcast_byte_cnt and rx_mcast_byte_cnt are not used anywhere/ > + u64 rx_bcast_byte_cnt; /* broadcast packets byte count (without FCS) */ > + u64 rx_mcast_byte_cnt; /* multicast packets byte count (without FCS) */ ... rx_err_addr is not used > + u64 rx_err_addr; /* packets dropped due to address filtering */ Typo: it is jabbers and not jubbers; greppping for "jubber" under drivers/net/ethernet gives 0 results, whereas: /net-next/drivers/net/ethernet$ grep -R jabber | wc -l gives 241 results. > + u64 rx_jubbers; /* jubbers */ ... .. tx_rd_eop and tx_len_err are not used > + u64 tx_rd_eop; /* count of reads beyond EOP */ > + u64 tx_len_err; /* packets with length mismatch */ Both tx_bcast_byte and tx_mcast_byte are not used. > + u64 tx_bcast_byte; /* broadcast packets byte count (without FCS) */ > + u64 tx_mcast_byte; /* multicast packets byte count (without FCS) */ Thanks for your good work, it seems that the driver is almost done! Regards, Rami Rosen -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html