ioctl structure annotated

	The rest of ->ifr_data cleanups.  A bunch of drivers use address
of ifr->ifr_ifru, but spell that as &ifr->ifr_data, which expands to
&ifr->ifr_ifru.ifru_data.  ifr_ifru is a union and in effect they sneak in
a private field into that union; ifr_ifru.ifru_data is a field in that
union and it has nothing to do with the things they want to do.  Cleaned
up by explicit use of &ifr->ifr_ifru.

	Several places where we really use ->ifr_data (i.e. use its value
and use it as __user pointer) annotated.

From: Jeff Garzik

	Jeff's patch adds a helper for obtaining mii_ioctl_data from ifreq
and switches drivers to it.  It's almost a "move common expression into
inline helper", except that instead of

	(struct mii_ioctl_data *)&rq->ifr_ifru.ifru_data

it does

	(struct mii_ioctl_data *)&rq->ifr_ifru

- pointer to union instead of pointer to a field of union that has nothing
to do with mii_ioctl_data *and* adds confusion by being a pointer itself.

Some boards don't support C1 Halt Disconnect.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

assorted minor bits in drivers/* - all independent, but there's
some limit to splitting stuff...

several pointers in ioctl structures marked as userland ones.

And that's it with this patchset.  A couple more of those and we'll
be done with the noise warnings ;-)

s2io.c: bogus initializer ({{"a"},{"b"}} has too many braces for
two-dimensional array of char - strings are arrays themselves).

de4x5.h: missing __user on a pointer in ioctl structure. 

airo.c: cleaned up and fixed procfs ->read() and ->write()

osst.c, st.c, scsi_debug.c annotated.

selinuxfs.c annotated

	b44.c: ->ioctl() is broken, since it uses &ifr->ifr_data instead of
ifr->ifr_data itself.  Surprise, surprise, copy_from_user() on that address
doesn't do any good...

	baycom_epp.c: does get_user() of the first word of structure, then
immediately does copy_from_user() on the entire thing and completely ignores
the value read by get_user() (it uses the same value in copied structure
instead).  Bogus get_user() call removed.

->ifr_data users annotated.

Some code that is used on iSeries (do_hash_page_DSI in head.S) was
clearing the RI (recoverable interrupt) bit in the MSR when it
shouldn't.  We were getting SLB miss interrupts following that which
were panicking because they appeared to have occurred at a bad place.
This patch fixes the problem.  In fact it isn't necessary for
do_hash_page_DSI to do anything to RI, so the patch changes the code
to not set or clear it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

net/bridge partially annotated.

There are nasty problems with net/bridge/netfilter/* and they'll need to
be dealt with at some point - it mixes kernel and userland pointers a
lot and while it seems to avoid obvious breakage, it's not a nice code.

econet partially annotated.

It's still badly broken - it mixes userland and kernel chunks in the
same iovec, then does set_fs(KERNEL_FS) and sends that to
sock_sendmsg().  Do we still want to support that protocol family,
anyway?