RE: [PATCH v3 net 6/7] net: enetc: linearize PTP event packets with one-step TX timestamping

[Wei Fang]

> ---
> v2->v3:
> - replace skb_linearize() with skb_linearize_cow(),

This is not true, this patch still use skb_linearize().

> - improve justification
> v1->v2:
> - patch is new
> ---
>  drivers/net/ethernet/freescale/enetc/enetc.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c
> b/drivers/net/ethernet/freescale/enetc/enetc.c
> index 8a9ba168eab1..62cdcaab3f3f 100644
> --- a/drivers/net/ethernet/freescale/enetc/enetc.c
> +++ b/drivers/net/ethernet/freescale/enetc/enetc.c
> @@ -1099,6 +1099,11 @@ netdev_tx_t enetc_xmit(struct sk_buff *skb, struct
> net_device *ndev)
> 
>  	/* Fall back to two-step timestamp if not one-step Sync packet */
>  	if (enetc_cb->flag & ENETC_F_TX_ONESTEP_SYNC_TSTAMP) {
> +		if (unlikely(skb_linearize(skb))) {
> +			dev_kfree_skb_any(skb);
> +			return NETDEV_TX_OK;
> +		}
> +
>  		if (enetc_ptp_parse(skb, &udp, &msgtype, &twostep,
>  				    &offset1, &offset2) ||
>  		    msgtype != PTP_MSGTYPE_SYNC || twostep != 0) {
> --
> 2.43.0