Patchwork [11/22] net: eliminate warning from NETIF_F_UFO on bridge

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Date Dec. 17, 2008, 12:04 a.m.
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Permalink /patch/14379/
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Comments - Dec. 17, 2008, 12:04 a.m.
2.6.27-stable review patch.  If anyone has any objections, please let us know.


From: Stephen Hemminger <>

Based on commit b63365a2d60268a3988285d6c3c6003d7066f93a upstream, but
drastically cut down for 2.6.27.y

The bridge device always causes a warning because when it is first created
it has the no checksum flag set along with all the segmentation/fragmentation
offload bits.  The code in register_netdevice incorrectly checks for only
hardware checksum bit and ignores no checksum bit.

Similar code is already in 2.6.28:
   commit b63365a2d60268a3988285d6c3c6003d7066f93a
   net: Fix disjunct computation of netdev features

Signed-off-by: Stephen Hemminger <>
Cc: David Miller <>
Cc: Herbert Xu <>
Signed-off-by: Greg Kroah-Hartman <>

 net/core/dev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3990,7 +3990,7 @@  int register_netdevice(struct net_device
 		dev->features &= ~NETIF_F_TSO;
 	if (dev->features & NETIF_F_UFO) {
-		if (!(dev->features & NETIF_F_HW_CSUM)) {
+		if (!(dev->features & NETIF_F_GEN_CSUM)) {
 			printk(KERN_ERR "%s: Dropping NETIF_F_UFO since no "
 					"NETIF_F_HW_CSUM feature.\n",