ice: drop dead code in ice_receive_skb()

napi_gro_receive() can never return GRO_DROP

GRO_DROP can only be returned from napi_gro_frags()
which is the other NAPI GRO entry point.

Followup patch will remove GRO_DROP, because drivers
are not supposed to call napi_gro_frags() if prior
napi_get_frags() has failed.

Note that I have left the gro_dropped variable. I leave to ice
maintainers the decision to further remove it from ethtool -S results.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
index bc2f439..02b1273 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
@@ -191,12 +191,7 @@ ice_receive_skb(struct ice_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag)
        if ((rx_ring->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
            (vlan_tag & VLAN_VID_MASK))
                __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
-       if (napi_gro_receive(&rx_ring->q_vector->napi, skb) == GRO_DROP) {
-               /* this is tracked separately to help us debug stack drops */
-               rx_ring->rx_stats.gro_dropped++;
-               netdev_dbg(rx_ring->netdev, "Receive Queue %d: Dropped packet from GRO\n",
-                          rx_ring->q_index);
-       }
+       napi_gro_receive(&rx_ring->q_vector->napi, skb);
 }
 
 /**