linux-toradex.git/drivers/net/loopback.c, branch v2.6.27.21

loopback: Drop obsolete ip_summed setting

2008-08-16T02:52:01+00:00

Now that the network stack can handle inbound packets with partial
checksums, we should no longer clobber the ip_summed field in the
loopback driver.  This is because CHECKSUM_UNNECESSARY implies that
the checksum field is actually valid which is not true for loopback
packets since it's only partial (and thus complemented).

This allows packets from lo to then be SNATed to an external source
while still preserving the checksum's validity.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

loopback: Remove rest of LOOPBACK_TSO code.

2008-08-16T02:51:26+00:00

It hasn't been enabled for a long time and the generic GSO
engine is better documentation of what is expected of a
device implementing TSO.

Signed-off-by: David S. Miller

loopback: Enable TSO

2008-08-16T02:51:25+00:00

This patch enables TSO since the loopback device is naturally
capable of handling packets of any size.  This also means that
we won't enable GSO on lo which is good until GSO is fixed to
preserve netfilter state as netfilter treats loopback packets
in a special way.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

netdev: netdev_priv() can now be sane again.

2008-07-18T02:21:09+00:00

The private area of a netdev is now at a fixed offset once more.

Unfortunately, some assumptions that netdev_priv() == netdev->priv
crept back into the tree.  In particular this happened in the
loopback driver.  Make it use netdev->ml_priv.

Signed-off-by: David S. Miller

[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.

2008-03-25T19:39:53+00:00

Introduce per-net_device inlines: dev_net(), dev_net_set().
Without CONFIG_NET_NS, no namespace other than &init_net exists.
Let's explicitly define them to help compiler optimizations.

Signed-off-by: YOSHIFUJI Hideaki

[NET]: Remove unused define from loopback driver.

2008-01-28T22:57:25+00:00

The LOOPBACK_OVERHEAD is not used in this file at all.

Signed-off-by: Pavel Emelyanov 
Signed-off-by: David S. Miller

Fixed a small typo in the loopback driver

2008-01-12T22:41:04+00:00

This is probably a result of the changes from commit
854d836 - [NET]: Dynamically allocate the loopback device, part 2

Signed-off-by: Emil Medve 
Signed-off-by: Jeff Garzik

[NET]: Move unneeded data to initdata section.

2007-11-13T11:23:50+00:00

This patch reverts Eric's commit 2b008b0a8e96b726c603c5e1a5a7a509b5f61e35

It diets .text & .data section of the kernel if CONFIG_NET_NS is not set.
This is safe after list operations cleanup.

Signed-of-by: Denis V. Lunev 
Signed-off-by: David S. Miller

[NET]: Marking struct pernet_operations __net_initdata was inappropriate

2007-10-27T05:54:53+00:00

It is not safe to to place struct pernet_operations in a special section.
We need struct pernet_operations to last until we call unregister_pernet_subsys.
Which doesn't happen until module unload.

So marking struct pernet_operations is a disaster for modules in two ways.
- We discard it before we call the exit method it points to.
- Because I keep struct pernet_operations on a linked list discarding
  it for compiled in code removes elements in the middle of a linked
  list and does horrible things for linked insert.

So this looks safe assuming __exit_refok is not discarded
for modules.

Signed-off-by: Eric W. Biederman 
Signed-off-by: David S. Miller

[NETNS]: Don't panic on creating the namespace's loopback

2007-10-15T19:55:33+00:00

When the loopback device is failed to initialize inside the new 
namespaces, panic() is called. Do not do it when the namespace 
in question is not the init_net.

Plus cleanup the error path a bit.

Signed-off-by: Pavel Emelyanov 
Signed-off-by: David S. Miller