The driver was counting GRO drops but now that the stack
does it with the previous patch, the driver can drop
all the logic.  The driver keeps the dev_dbg message in order
to do optional detailed tracing.

This mostly undoes commit a8fffd7ae9a5 ("ice: add useful statistics").

Signed-off-by: Jesse Brandeburg <jesse.brandeb...@intel.com>
---
 drivers/net/ethernet/intel/ice/ice.h          | 1 -
 drivers/net/ethernet/intel/ice/ice_ethtool.c  | 1 -
 drivers/net/ethernet/intel/ice/ice_main.c     | 4 +---
 drivers/net/ethernet/intel/ice/ice_txrx.h     | 1 -
 drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 2 --
 5 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice.h 
b/drivers/net/ethernet/intel/ice/ice.h
index 56725356a17b..dde850045e7e 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -256,7 +256,6 @@ struct ice_vsi {
        u32 tx_busy;
        u32 rx_buf_failed;
        u32 rx_page_failed;
-       u32 rx_gro_dropped;
        u16 num_q_vectors;
        u16 base_vector;                /* IRQ base for OS reserved vectors */
        enum ice_vsi_type type;
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c 
b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 9e8e9531cd87..025c0a13e724 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -59,7 +59,6 @@ static const struct ice_stats ice_gstrings_vsi_stats[] = {
        ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
        ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
        ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
-       ICE_VSI_STAT("rx_gro_dropped", rx_gro_dropped),
        ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
        ICE_VSI_STAT("tx_linearize", tx_linearize),
        ICE_VSI_STAT("tx_busy", tx_busy),
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c 
b/drivers/net/ethernet/intel/ice/ice_main.c
index c52b9bb0e3ab..e157a2b4fcb9 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -5314,7 +5314,6 @@ static void ice_update_vsi_ring_stats(struct ice_vsi *vsi)
        vsi->tx_linearize = 0;
        vsi->rx_buf_failed = 0;
        vsi->rx_page_failed = 0;
-       vsi->rx_gro_dropped = 0;
 
        rcu_read_lock();
 
@@ -5329,7 +5328,6 @@ static void ice_update_vsi_ring_stats(struct ice_vsi *vsi)
                vsi_stats->rx_bytes += bytes;
                vsi->rx_buf_failed += ring->rx_stats.alloc_buf_failed;
                vsi->rx_page_failed += ring->rx_stats.alloc_page_failed;
-               vsi->rx_gro_dropped += ring->rx_stats.gro_dropped;
        }
 
        /* update XDP Tx rings counters */
@@ -5361,7 +5359,7 @@ void ice_update_vsi_stats(struct ice_vsi *vsi)
        ice_update_eth_stats(vsi);
 
        cur_ns->tx_errors = cur_es->tx_errors;
-       cur_ns->rx_dropped = cur_es->rx_discards + vsi->rx_gro_dropped;
+       cur_ns->rx_dropped = cur_es->rx_discards;
        cur_ns->tx_dropped = cur_es->tx_discards;
        cur_ns->multicast = cur_es->rx_multicast;
 
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h 
b/drivers/net/ethernet/intel/ice/ice_txrx.h
index ff1a1cbd078e..6ce2046fc349 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.h
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.h
@@ -193,7 +193,6 @@ struct ice_rxq_stats {
        u64 non_eop_descs;
        u64 alloc_page_failed;
        u64 alloc_buf_failed;
-       u64 gro_dropped; /* GRO returned dropped */
 };
 
 /* this enum matches hardware bits and is meant to be used by DYN_CTLN
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c 
b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
index bc2f4390b51d..3601b7d8abe5 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
@@ -192,8 +192,6 @@ ice_receive_skb(struct ice_ring *rx_ring, struct sk_buff 
*skb, u16 vlan_tag)
            (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);
        }
-- 
2.29.2

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