copying moved into sg_io()

The kernel instance (packet_command) has kernel pointers, userland one -
__user ones. Surprise.

Speaking of conflicts...  Here's another half of a do_utimes() patch,
same story as on ppc64:

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

oh, hell - I missed this one when carving the thing out of big patch ;-/

into kernel.bkbits.net:/home/davem/net-2.6

Fix a missing initialization in the sparse __user annotation work for OSS.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

into kernel.bkbits.net:/home/davem/net-2.6

into kernel.bkbits.net:/home/davem/sparc-2.6

This also fixes a terminally broken sys32_utimes() implementation.

Don't need all the network sysfs code if CONFIG_SYSFS is not enabled.
Also:
	* netdev_sysfs_unregister is declaration mismatch
	* if netdev_sysfs_register fails print a warning.
	  Need to still mark it as registered so the unregister_netdevice works,
	  but we will probably end up leaking memory in that case.

As the comment in the code suggests, nobody really uses this so nobody
will notice the difference :) Still, let's make it correct while we're
at it.

1) Add sysctl to control rcvbuf moderation, off for now.
2) Set default winscale to zero.

Also replacement of #if RTC_IRQ with #ifdef, moved inlined function in
front of all uses.

Fixed dereferencing userland pointers, general idiocy in parsing.

caddr_t is gone (most of the instances were void __user * in disguise,
the rest - void *)

Fixed b0rken ioctls in mpu401 and pss - they used to dereference
userland pointers with no checks.