From: Jon Maxwell <jmaxwell37@gmail.com>
Date: Thu, 24 May 2018 21:38:29 +0000 (+1000)
Subject: ifb: fix packets checksum
X-Git-Tag: v4.19~872^2~125
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b1d2e4e03f92734ff524f96c4b2287133de7a4a3;p=platform%2Fkernel%2Flinux-rpi.git

ifb: fix packets checksum

Fixup the checksum for CHECKSUM_COMPLETE when pulling skbs on RX path.
Otherwise we get splats when tc mirred is used to redirect packets to ifb.

Before fix:

nic: hw csum failure

Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index 5f2897e..d345c61 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -102,7 +102,7 @@ static void ifb_ri_tasklet(unsigned long _txp)
 		if (!skb->tc_from_ingress) {
 			dev_queue_xmit(skb);
 		} else {
-			skb_pull(skb, skb->mac_len);
+			skb_pull_rcsum(skb, skb->mac_len);
 			netif_receive_skb(skb);
 		}
 	}