From: Andrej Ota <and...@ota.si>
Because eth_type_trans() consumes ethernet header worth of bytes, a call
to read TCI from end of packet using rhine_rx_vlan_tag() no longer works
as it's reading from an invalid offset.
Tested to be working on PCEngines Alix board.
Fixes: 810f19bcb862 ("via-rhine: add consistent memory barrier in vlan receive
code.")
Signed-off-by: Andrej Ota <and...@ota.si>
Acked-by: Francois Romieu <rom...@fr.zoreil.com>
---
Applies fine as of 0f8b8e28fb3241f9fd82ce13bac2b40c35e987e0
("tipc: eliminate risk of stalled link synchronization").
Andrej posted it on l-k the 2015/10/04, see
http://marc.info/?l=linux-kernel&m=144398918324349
Kernel v4.2 exhibits the regression. Stable v4.[01] kernels don't.
drivers/net/ethernet/via/via-rhine.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/via/via-rhine.c
b/drivers/net/ethernet/via/via-rhine.c
index a832637..2b7550c 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -2134,10 +2134,11 @@ static int rhine_rx(struct net_device *dev, int limit)
}
skb_put(skb, pkt_len);
- skb->protocol = eth_type_trans(skb, dev);
rhine_rx_vlan_tag(skb, desc, data_size);
+ skb->protocol = eth_type_trans(skb, dev);
+
netif_receive_skb(skb);
u64_stats_update_begin(&rp->rx_stats.syncp);
--
2.4.3
--
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