From: Vladimir Oltean Date: Fri, 16 Apr 2021 21:22:18 +0000 (+0300) Subject: net: enetc: recycle buffers for frames with RX errors X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=672f9a21989e56c8233d1d8daab3e5eecf76c59e;p=linux.git net: enetc: recycle buffers for frames with RX errors When receiving a frame with errors, currently we do nothing with it (we don't construct an skb or an xdp_buff), we just exit the NAPI poll loop. Let's put the buffer back into the RX ring (similar to XDP_DROP). Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index c4ff090f29ec6..c6f9844733375 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -822,12 +822,14 @@ static bool enetc_check_bd_errors_and_consume(struct enetc_bdr *rx_ring, if (likely(!(bd_status & ENETC_RXBD_LSTATUS(ENETC_RXBD_ERR_MASK)))) return false; + enetc_put_rx_buff(rx_ring, &rx_ring->rx_swbd[*i]); enetc_rxbd_next(rx_ring, rxbd, i); while (!(bd_status & ENETC_RXBD_LSTATUS_F)) { dma_rmb(); bd_status = le32_to_cpu((*rxbd)->r.lstatus); + enetc_put_rx_buff(rx_ring, &rx_ring->rx_swbd[*i]); enetc_rxbd_next(rx_ring, rxbd, i); }