netdev - [PATCH net-next v1 2/2] amd-xgbe: Check for complete packet on skb allocation error

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Message-ID: <20141106230219.21973.44275.stgit@tlendack-t1.amdoffice.net>
Date:	Thu, 6 Nov 2014 17:02:19 -0600
From:	Tom Lendacky <thomas.lendacky@....com>
To:	<netdev@...r.kernel.org>
CC:	<davem@...emloft.net>
Subject: [PATCH net-next v1 2/2] amd-xgbe: Check for complete packet on skb
 allocation error

If the skb allocation fails during receive processing, the driver would
continue reading descriptors without first determining if there were
any more descriptors for the current packet. Update the code to check
whether more descriptors are associated with the current packet or
whether to move on to the next descriptor as a new packet.

Signed-off-by: Tom Lendacky <thomas.lendacky@....com>
---
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index ec5fff3..0544931 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -1908,7 +1908,7 @@ read_again:
 				skb = xgbe_create_skb(pdata, rdata, &put_len);
 				if (!skb) {
 					error = 1;
-					goto read_again;
+					goto skip_data;
 				}
 			}
 
@@ -1926,10 +1926,10 @@ read_again:
 			}
 		}
 
+skip_data:
 		if (incomplete || context_next)
 			goto read_again;
 
-		/* Stray Context Descriptor? */
 		if (!skb)
 			goto next_packet;
 

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