From: Eric W. Biederman <ebiederm@xmission.com>
Date: Sat, 15 Mar 2014 23:23:31 +0000 (-0700)
Subject: cxgb3: Call dev_kfree/consume_skb_any instead of [dev_]kfree_skb.
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f9ec8131bba25d4381c4c7f80dcf8532b864f652;p=linux-beck.git

cxgb3: Call dev_kfree/consume_skb_any instead of [dev_]kfree_skb.

Replace kfree_skb with dev_consume_skb_any in free_tx_desc, and
write_tx_pkt_wr that can be called in hard irq and other contexts.

Replace dev_kfree_skb with dev_kfree_skb_any in t3_eth_xmit that can
be called in hard irq and other contexts.

dev_kfree_skb is replaced with dev_kfree_skb_any in t3_eth_xmit as
that location is a packet drop, while kfree_skb in free_tx_desc,
and in write_tx_pkt_wr are places where packets are consumed
in a healthy manner.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---

diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 632b318eb38a..8b069f96e920 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -298,7 +298,7 @@ static void free_tx_desc(struct adapter *adapter, struct sge_txq *q,
 			if (need_unmap)
 				unmap_skb(d->skb, q, cidx, pdev);
 			if (d->eop) {
-				kfree_skb(d->skb);
+				dev_consume_skb_any(d->skb);
 				d->skb = NULL;
 			}
 		}
@@ -1188,7 +1188,7 @@ static void write_tx_pkt_wr(struct adapter *adap, struct sk_buff *skb,
 			cpl->wr.wr_lo = htonl(V_WR_LEN(flits) | V_WR_GEN(gen) |
 					      V_WR_TID(q->token));
 			wr_gen2(d, gen);
-			kfree_skb(skb);
+			dev_consume_skb_any(skb);
 			return;
 		}
 
@@ -1233,7 +1233,7 @@ netdev_tx_t t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	 * anything shorter than an Ethernet header.
 	 */
 	if (unlikely(skb->len < ETH_HLEN)) {
-		dev_kfree_skb(skb);
+		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
 	}