releases/4.14.117/net-stmmac-ratelimit-rx-error-logs.patch

   1 From 1eb89f4a73080781a42c8f9d8aa8771e0c534fa3 Mon Sep 17 00:00:00 2001
   2 From: Aaro Koskinen <aaro.koskinen@nokia.com>
   3 Date: Wed, 27 Mar 2019 22:35:36 +0200
   4 Subject: net: stmmac: ratelimit RX error logs
   5
   6 [ Upstream commit 972c9be784e077bc56472c78243e0326e525b689 ]
   7
   8 Ratelimit RX error logs.
   9
  10 Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
  11 Signed-off-by: David S. Miller <davem@davemloft.net>
  12 Signed-off-by: Sasha Levin <sashal@kernel.org>
  13 ---
  14  drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 14 ++++++++------
  15  1 file changed, 8 insertions(+), 6 deletions(-)
  16
  17 diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
  18 index ecf3f8c1bc0e..0f85e540001f 100644
  19 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
  20 +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
  21 @@ -3413,9 +3413,10 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
  22                          *  ignored
  23                          */
  24                         if (frame_len > priv->dma_buf_sz) {
  25 -                               netdev_err(priv->dev,
  26 -                                          "len %d larger than size (%d)\n",
  27 -                                          frame_len, priv->dma_buf_sz);
  28 +                               if (net_ratelimit())
  29 +                                       netdev_err(priv->dev,
  30 +                                                  "len %d larger than size (%d)\n",
  31 +                                                  frame_len, priv->dma_buf_sz);
  32                                 priv->dev->stats.rx_length_errors++;
  33                                 break;
  34                         }
  35 @@ -3473,9 +3474,10 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
  36                         } else {
  37                                 skb = rx_q->rx_skbuff[entry];
  38                                 if (unlikely(!skb)) {
  39 -                                       netdev_err(priv->dev,
  40 -                                                  "%s: Inconsistent Rx chain\n",
  41 -                                                  priv->dev->name);
  42 +                                       if (net_ratelimit())
  43 +                                               netdev_err(priv->dev,
  44 +                                                          "%s: Inconsistent Rx chain\n",
  45 +                                                          priv->dev->name);
  46                                         priv->dev->stats.rx_dropped++;
  47                                         break;
  48                                 }
  49 --
  50 2.20.1
  51