Patch "net: bcmgenet: Be drop monitor friendly" has been added to the 4.12-stable tree

Patch "net: bcmgenet: Be drop monitor friendly" has been added to the 4.12-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net: bcmgenet: Be drop monitor friendly

to the 4.12-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-bcmgenet-be-drop-monitor-friendly.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Thu Sep 14 23:20:23 PDT 2017
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 24 Aug 2017 15:56:29 -0700
Subject: net: bcmgenet: Be drop monitor friendly

From: Florian Fainelli <f.fainelli@gmail.com>


[ Upstream commit d4fec855905fa8bd5fb1c59f73ad2d74a944876a ]

There are 3 spots where we call dev_kfree_skb() but we are actually
just doing a normal SKB consumption: __bcmgenet_tx_reclaim() for normal
TX reclamation, bcmgenet_alloc_rx_buffers() during the initial RX ring
setup and bcmgenet_free_rx_buffers() during RX ring cleanup.

Fixes: d6707bec5986 ("net: bcmgenet: rewrite bcmgenet_rx_refill()")
Fixes: f48bed16a756 ("net: bcmgenet: Free skb after last Tx frag")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1203,7 +1203,7 @@ static struct enet_cb *bcmgenet_get_txcb
 /* Simple helper to free a control block's resources */
 static void bcmgenet_free_cb(struct enet_cb *cb)
 {
-	dev_kfree_skb_any(cb->skb);
+	dev_consume_skb_any(cb->skb);
 	cb->skb = NULL;
 	dma_unmap_addr_set(cb, dma_addr, 0);
 }
@@ -1868,7 +1868,7 @@ static int bcmgenet_alloc_rx_buffers(str
 		cb = ring->cbs + i;
 		skb = bcmgenet_rx_refill(priv, cb);
 		if (skb)
-			dev_kfree_skb_any(skb);
+			dev_consume_skb_any(skb);
 		if (!cb->skb)
 			return -ENOMEM;
 	}


Patches currently in stable-queue which might be from f.fainelli@gmail.com are

queue-4.12/net-systemport-be-drop-monitor-friendly.patch
queue-4.12/net-bcmgenet-be-drop-monitor-friendly.patch
queue-4.12/net-dsa-bcm_sf2-fix-number-of-cfp-entries-for-bcm7278.patch
queue-4.12/net-systemport-free-dma-coherent-descriptors-on-errors.patch
queue-4.12/fsl-man-inherit-parent-device-and-of_node.patch
queue-4.12/revert-net-phy-correctly-process-phy_halted-in-phy_stop_machine.patch