[PATCH 4.2.y-ckt 273/273] IB/IPoIB: Do not set skb truesize since using one linearskb

Kamal Mostafa kamal at canonical.com
Mon Mar 7 22:51:04 UTC 2016


4.2.8-ckt5 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Carol L Soto <clsoto at linux.vnet.ibm.com>

commit bb6a777369449d15a4a890306d2f925cae720e1c upstream.

We are seeing this warning: at net/core/skbuff.c:4174
and before commit a44878d10063 ("IB/ipoib: Use one linear skb in RX flow")
skb truesize was not being set when ipoib was using just one skb.
Removing this line avoids the warning when running tcp tests like iperf.

Fixes: a44878d10063 ("IB/ipoib: Use one linear skb in RX flow")
Signed-off-by: Carol L Soto <clsoto at linux.vnet.ibm.com>
Signed-off-by: Doug Ledford <dledford at redhat.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_ib.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index d266667..b5a851f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -245,8 +245,6 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 	skb_reset_mac_header(skb);
 	skb_pull(skb, IPOIB_ENCAP_LEN);
 
-	skb->truesize = SKB_TRUESIZE(skb->len);
-
 	++dev->stats.rx_packets;
 	dev->stats.rx_bytes += skb->len;
 
-- 
2.7.0





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