diff options
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_txrx.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index c88e0701e1d7..e5c4c9139e54 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -607,6 +607,8 @@ ice_add_rx_frag(struct ice_rx_buf *rx_buf, struct sk_buff *skb, unsigned int truesize = ICE_RXBUF_2048; #endif + if (!size) + return; skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_buf->page, rx_buf->page_offset, size, truesize); @@ -662,6 +664,8 @@ ice_get_rx_buf(struct ice_ring *rx_ring, struct sk_buff **skb, prefetchw(rx_buf->page); *skb = rx_buf->skb; + if (!size) + return rx_buf; /* we are reusing so sync this buffer for CPU use */ dma_sync_single_range_for_cpu(rx_ring->dev, rx_buf->dma, rx_buf->page_offset, size, @@ -745,8 +749,11 @@ ice_construct_skb(struct ice_ring *rx_ring, struct ice_rx_buf *rx_buf, */ static void ice_put_rx_buf(struct ice_ring *rx_ring, struct ice_rx_buf *rx_buf) { - /* hand second half of page back to the ring */ + if (!rx_buf) + return; + if (ice_can_reuse_rx_page(rx_buf)) { + /* hand second half of page back to the ring */ ice_reuse_rx_page(rx_ring, rx_buf); rx_ring->rx_stats.page_reuse_count++; } else { @@ -1031,8 +1038,9 @@ static int ice_clean_rx_irq(struct ice_ring *rx_ring, int budget) size = le16_to_cpu(rx_desc->wb.pkt_len) & ICE_RX_FLX_DESC_PKT_LEN_M; + /* retrieve a buffer from the ring */ rx_buf = ice_get_rx_buf(rx_ring, &skb, size); - /* allocate (if needed) and populate skb */ + if (skb) ice_add_rx_frag(rx_buf, skb, size); else @@ -1041,7 +1049,8 @@ static int ice_clean_rx_irq(struct ice_ring *rx_ring, int budget) /* exit if we failed to retrieve a buffer */ if (!skb) { rx_ring->rx_stats.alloc_buf_failed++; - rx_buf->pagecnt_bias++; + if (rx_buf) + rx_buf->pagecnt_bias++; break; } |