Noticed by HIroaki Kago <kago@jp.fujitsu.com>

- Fix socket locking in ax25
- Fix waitqueue handling bug in ax25
- Use sock_orphan in ax25
- Fix waitqueue handling bug in netrom and rose too
- Fix raw socket behavior in ax25

bridge-nf-call-arptables - pass or don't pass bridged ARP traffic to
arptables' FORWARD chain.
bridge-nf-call-iptables - pass or don't pass bridged IPv4 traffic to
iptables' chains.
bridge-nf-filter-vlan-tagged - pass or don't pass bridged vlan-tagged
ARP/IP traffic to arptables/iptables.

Create common routine, tcf_destroy(), that does all the work properly
in one centralized place.

- NPRINTK2 will not compile if ND_DEBUG set to 3
- Missing dst_release in ndisc_send_rs if skb allocation fails.

into nuts.ninka.net:/disk1/davem/BK/net-2.5

corruption on SMP because of another CPU still accessing a waitqueue
even after it was de-allocated.

Use a careful version of the list emptiness check to make sure we
don't de-allocate the stack frame before the waitqueue is all done.

Also, fix a object size vs. pointer size thinko.

James reported a bug in scsi_ioctl.c where it mem copies a user pointer
instead of using copy_from_user(). I inadvertently introduced this one
when getting rid of CDROM_SEND_PACKET. Here's a trivial patch to fix it.

TCP IPV6 ->hash() method should not grab a socket reference.

The problem was that the cursor was in the list being walked, and when
the pointer pointed to the cursor the list_del/list_add_tail pair would
oops trying to find the entry pointed to by the prev pointer of the
deleted cursor element.

The solution I found was to move the list_del earlier, before the
beginning of the list walk. since it is not used during the list walk and
should not count in the list enumeration it can be deleted, then the
list pointer cannot point to it so it can be added safely with the
list_add_tail without oopsing, and everything works as expected.

I am unable to oops this version with any of my test programs. 

Patch acked by Al Viro.

into home.osdl.org:/home/torvalds/v2.5/linux

Based upon a patch from devik.

From Javier Achirica:

Delay MIC activation to prevent Oops

Clean up the tests while at it.

From: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
   
   Such poisoning can cause oopses either because the refcount is not
   zero when the poisoning occurs, or due to kernel debugging options
   being enabled.

The driver was calling pci_unregister_driver for each _device_, and then
again at the end of the module unload routine.  Remove the call that's
inside the loop, pci_unregister_driver should only be called once.
   
Caught by Don Fry (and many others)

Fixes oops some were seeing on module unload.

Caught by Jon Burgess.

into home.osdl.org:/home/torvalds/v2.5/linux

We should not allow mmap() with PROT_EXEC on mounts marked "noexec",
since otherwise there is no way for user-supplied executable loaders
(like ld.so and emulator environments) to properly honour the
"noexec"ness of the target.

into home.osdl.org:/home/torvalds/v2.5/linux

This patch fixes i2c_smbus_write_byte() being broken for i2c-nforce2.
This causes trouble when that module is used together with eeprom (which
is also in 2.6). We have had three user reports about the problem.

Credits go to Mark D. Studebaker for finding and fixing the problem.

The scheduler is completed b0rked on x86_64, and I finally found out
why.  sched_clock() always returned 0, because rdtscll() always returned
0.  The 'a' in the macro doesn't agree with the 'a' in the function,
yippe :-)

This is a show stopper for x86_64.

into home.osdl.org:/home/torvalds/v2.5/linux

The pid_alive() check within the loop is incorrect.  If we are within
the tasklist lock and the thread group leader is valid then the thread
chain will be fully intact.

Instead, the check should be _outside_ the loop, since if the group
leader no longer exists, the whole list is gone and we must not try
to access it.

Move the check around, and add comment.

Bug-hunting and fix by Srivatsa Vaddagiri