[Xen-changelog] While working bug #143, it came to my attention that no verbose error is

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 9b7649651f497a218d333cab756edb31a5583ff8
# Parent  1e89d78f21c56a10d2be5e838f0fce89dd36055e
While working bug #143, it came to my attention that no verbose error is
loged if the dom0 kernel mangles a packet and tries to checksum
offload it.  

This should let the user know what is going wrong (instead of silently
dropping the packet). 

Signed-off-by: Jon Mason <jdmason@xxxxxxxxxx>

diff -r 1e89d78f21c5 -r 9b7649651f49 linux-2.6-xen-sparse/net/core/dev.c
--- a/linux-2.6-xen-sparse/net/core/dev.c       Fri Dec  2 10:06:40 2005
+++ b/linux-2.6-xen-sparse/net/core/dev.c       Fri Dec  2 10:08:24 2005
@@ -1283,6 +1283,11 @@
                        skb->csum = offsetof(struct udphdr, check);
                        break;
                default:
+                       if (net_ratelimit())
+                               printk(KERN_ERR "Attempting to checksum a non-"
+                                      "TCP/UDP packet, dropping a protocol"
+                                      " %d packet", skb->nh.iph->protocol);
+                       rc = -EPROTO;
                        goto out_kfree_skb;
                }
                if ((skb->h.raw + skb->csum + 2) > skb->tail)

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