linux-kernel - [PATCH 4.9 053/109] ravb: Remove Rx overflow log messages

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Date:   Thu,  7 Dec 2017 13:56:37 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Kazuya Mizuguchi <kazuya.mizuguchi.ks@...esas.com>,
        Simon Horman <horms+renesas@...ge.net.au>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.9 053/109] ravb: Remove Rx overflow log messages

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@...esas.com>


[ Upstream commit 18a3ed59d09cf81a6447aadf6931bf0c9ffec5e0 ]

Remove Rx overflow log messages as in an environment where logging results
in network traffic logging may cause further overflows.

Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@...esas.com>
[simon: reworked changelog]
Signed-off-by: Simon Horman <horms+renesas@...ge.net.au>
Acked-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Signed-off-by: David S. Miller <davem@...emloft.net>

Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/renesas/ravb_main.c |    8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -941,14 +941,10 @@ static int ravb_poll(struct napi_struct
 	/* Receive error message handling */
 	priv->rx_over_errors =  priv->stats[RAVB_BE].rx_over_errors;
 	priv->rx_over_errors += priv->stats[RAVB_NC].rx_over_errors;
-	if (priv->rx_over_errors != ndev->stats.rx_over_errors) {
+	if (priv->rx_over_errors != ndev->stats.rx_over_errors)
 		ndev->stats.rx_over_errors = priv->rx_over_errors;
-		netif_err(priv, rx_err, ndev, "Receive Descriptor Empty\n");
-	}
-	if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors) {
+	if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors)
 		ndev->stats.rx_fifo_errors = priv->rx_fifo_errors;
-		netif_err(priv, rx_err, ndev, "Receive FIFO Overflow\n");
-	}
 out:
 	return budget - quota;
 }