[PATCH v2 net-next 2/2] net: usb: r8152: Fix rx_bytes/tx_bytes to include FCS

[Andrew Lunn]

The statistics counters rx_bytes and tx_bytes don't include the
Ethernet Frame Check Sequence. Fix the rx_bytes/tx_bytes counters to
include the FCS, and include the received FCS in the skb.

Signed-off-by: Andrew Lunn <and...@lunn.ch>
---
 drivers/net/usb/r8152.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index ddc62cb69be8..4081a2cd8b1b 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1228,7 +1228,7 @@ static void write_bulk_callback(struct urb *urb)
                stats->tx_errors += agg->skb_num;
        } else {
                stats->tx_packets += agg->skb_num;
-               stats->tx_bytes += agg->skb_len;
+               stats->tx_bytes += agg->skb_len + CRC_SIZE;
        }
 
        spin_lock(&tp->tx_lock);
@@ -1826,7 +1826,6 @@ static int rx_bottom(struct r8152 *tp, int budget)
                        if (urb->actual_length < len_used)
                                break;
 
-                       pkt_len -= CRC_SIZE;
                        rx_data += sizeof(struct rx_desc);
 
                        skb = napi_alloc_skb(napi, pkt_len);
@@ -1850,7 +1849,7 @@ static int rx_bottom(struct r8152 *tp, int budget)
                        }
 
 find_next_rx:
-                       rx_data = rx_agg_align(rx_data + pkt_len + CRC_SIZE);
+                       rx_data = rx_agg_align(rx_data + pkt_len);
                        rx_desc = (struct rx_desc *)rx_data;
                        len_used = (int)(rx_data - (u8 *)agg->head);
                        len_used += sizeof(struct rx_desc);
-- 
2.11.0