- check TTL before rewriting so icmp_send gets clean packet
- skb_copy_expand(skb) for tcpdump and asymmetric routing
- inline some function
- remove unneccessary struct in_device declaration
- remove RTO_CONN

Patch by Steffen Klassert <klassert@mathematik.tu-chemnitz.de>

into nuts.ninka.net:/home/davem/src/BK/net-2.5

into nuts.ninka.net:/home/davem/src/BK/net-2.5

Wan router register/unregister does not need MOD_INC/MOD_DEC because it
can not be unloaded as long as its symbols are in use by the calling module.

Without an exit routine lapb can't be unloaded.

The MOD_INC and MOD_DEC in lapb are no longer necessary in 2.6 since
the module subsystem will not allow lapb to be unloaded as long as a module
that is referencing the symbols (lapb_register/lapb_unregister) is loaded.

author: Daniele Bellucci <bellucda@tiscali.it>

Fix a memory leak and checks a copy_from_user in wan/comx driver.

author: Daniele Bellucci <bellucda@tiscali.it>

author: Daniele Bellucci <bellucda@tiscali.it>

Fix an unchecked copy_from_user in ieee1394/amdtp.

author: Daniele Bellucci <bellucda@tiscali.it>

Fix several unchecked copy_to_user()s in sbus/char/envctrl

author:  Daniele Bellucci <bellucda@tiscali.it>

Fix a series of unchecked copy/put_user()s in umsdos ioctl.

From: Daniele Bellucci <bellucda@tiscali.it>

Fix an unchecked copy_to_user in ray_cs ioctl.

From:  Matthew Wilcox <willy@debian.org> and Daniele Bellucci <bellucda@tiscali.it>

Fix an unchecked copy_to_user() in net/irda/vlsi_ir.c.