This patch makes the possessor permissions on a key additive with
user/group/other permissions on the same key.

This permits extra rights to be granted to the possessor of a key without
taking away any rights conferred by them owning the key or having common group
membership.
Signed-Off-By: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The attached patch splits key permissions checking out of key-ui.h and
moves it into a .c file.  It's quite large and called quite a lot, and
it's about to get bigger with the addition of LSM support for keys...

key_any_permission() is also discarded as it's no longer used.
Signed-Off-By: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The attached patch adds documentation for the process by which request-key
works, including how it permits helper processes to gain access to the
requestor's keyrings.
Signed-Off-By: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Plug request_key_auth memleak.  This can be triggered by unprivileged
users, so is local DoS.
Signed-off-by: NChris Wright <chrisw@osdl.org>
Signed-Off-By: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

(struct pcmcia_socket).tune_bridge only exists if CONFIG_CARDBUS is set
but building yenta_socket without CardBus is valid.
Signed-off-by: NDavid Vrabel <dvrabel@arcom.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Let's suppose we have 2 threads in thread group:
	A - does coredump
	B - has pending SIGSTOP

thread A						thread B

do_coredump:						get_signal_to_deliver:

  lock(->sighand)
  ->signal->flags = SIGNAL_GROUP_EXIT
  unlock(->sighand)

							lock(->sighand)
							signr = dequeue_signal()
								->signal->flags |= SIGNAL_STOP_DEQUEUED
								return SIGSTOP;

							do_signal_stop:
							    unlock(->sighand)

  coredump_wait:

      zap_threads:
          lock(tasklist_lock)
          send SIGKILL to B
              // signal_wake_up() does nothing
          unlock(tasklist_lock)

							    lock(tasklist_lock)
							    lock(->sighand)
							    re-check sig->flags & SIGNAL_STOP_DEQUEUED, yes
							    set_current_state(TASK_STOPPED);
							    finish_stop:
							        schedule();
							            // ->state == TASK_STOPPED

      wait_for_completion(&startup_done)
         // waits for complete() from B,
         // ->state == TASK_UNINTERRUPTIBLE

We can't wake up 'B' in any way:

	SIGCONT will be ignored because handle_stop_signal() sees
	->signal->flags & SIGNAL_GROUP_EXIT.

	sys_kill(SIGKILL)->__group_complete_signal() will choose
	uninterruptible 'A', so it can't help.

	sys_tkill(B, SIGKILL) will be ignored by specific_send_sig_info()
	because B already has pending SIGKILL.

This scenario is not possbile if 'A' does do_group_exit(), because
it sets sig->flags = SIGNAL_GROUP_EXIT and delivers SIGKILL to
subthreads atomically, holding both tasklist_lock and sighand->lock.
That means that do_signal_stop() will notice !SIGNAL_STOP_DEQUEUED
after re-locking ->sighand. And it is not possible to any other
thread to re-add SIGNAL_STOP_DEQUEUED later, because dequeue_signal()
can only return SIGKILL.

I think it is better to change do_coredump() to do sigaddset(SIGKILL)
and signal_wake_up() under sighand->lock, but this patch is much
simpler.
Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

From: "Jean-Denis Boyer" <jdboyer@mediatrix.com>
Signed-off-by: NChas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We need to use stricter memory barriers around the block
load and store instructions we use to save and restore the
FPU register file.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The attached patch fixes the p9100 framebuffer so that text is viewable
(not black on black, like it was before the patch). The linux logo
displays for a very short period of time, then is replaced by a grey
box. This leads me to believe that this framebuffer would have problems
in X, but since there hasn't been a weitek driver for X in several
millennia, this isn't something that I can confirm or deny.

But this patch does get color console working on my SPARCbook 3TX.
Signed-off-by: NTom 'spot' Callaway <tcallawa@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

USB generic driver
Add a quirk entry for the external MIDI ports of the
Windows Edition of the Hercules DJ Console.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
Add a mixer quirk entry for the Hercules DJ Console (Windows Edition)
that uses a different USB product ID.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

ALI5451 driver
Don't build the modem PCM if the corresponding codec isn't detected.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

EMU10K1/EMU10K2 driver
Fixed the handling of ac97_chip=2 capability type.
The error occurs in snd_ac97_mixer(), not in snd_ac97_bus().
Also, release the unnecessary ac97_bus object in the error path.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

KORG1212 driver
Add a missing comma that made the stateName array one entry too short.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

EMU10K1/EMU10K2 driver
Fixed the error at loading SBLive Game board (and possible other models).
The PCI SSIDs of this board conflicts with SB Live 5.1 Platinum, which has
no AC97 chip.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

VIA82xx driver
Addded a dxs_support entry for an ASUS mobo.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

HDA Codec driver
Fixed the confliction of capture controls on ALC880 'test' model.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

HDA Codec driver
Mark the ALC882 'LFE Playback Switch' as an input, like the other
playback switch settings.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

HDA Codec driver
Fix a typo (cut & paste) in the alc880_test_mixer structure.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

HDA Codec driver
The ALC260 'Mono Playback Switch' is marked as an output in
patch_realtek.c. It actually does not work unless it is marked as an
input. Go figure... This was tested and confirmed on an HP xw4300.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

USB generic driver
Increase the maximum PCM buffer size to 1 MB.  The USB driver doesn't
have any inherent buffer size limit, and big multichannel interfaces
may benefit from this.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
There is another revision of the PHASE26 with a different product ID;
add a quirk entry for that, too.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

USB generic driver
Add quirk entries for four unknown Yamaha USB MIDI devices.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

PPC PMAC driver
Added the support of iBook 1.33GHz.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

USB generic driver
Add a quirk entry for the Roland RD-700SX.
This should work for the RD-300SX, too.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

VIA82xx driver
Added a dxs whitelist entry for an ECS mobo.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

AC97 Codec
A single call to the driver suspend/resume method for each device is
enough. The level and SUSPEND_*/RESUME_* arguments are deprecated and
said to be removed eventually anyway (no other subsystem are using them
anymore except platform devices).
Signed-off-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

AC97 Codec
Don't use dev.platform_data to store a reference to the containing
ac97_t structure.  Such assignment is redundent since we can deduce the
ac97_t structure location from the contained device structure.  This
sets platform_data free for other purposes.
Signed-off-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

AC97 Codec
The bus_id is initialized with a generic identifier string which is not
really useful for proper driver matching.  Let the driver decide what it
needs via its probe method instead.
Signed-off-by: NNicolas Pitre <nico@cam.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

USB generic driver
Add a quirk entry for the Hercules DJ Console to ignore timeouts on
some mixer control transfers.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

ARM PXA2XX driver
Fix pm_message_t in PXA2XX-AC97 driver.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

HDA Intel driver
Disable the auto-correction of DMA position temporarily.
It doesn't work as expected yet...
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

HDA generic driver
This creates 'empty' hda generic for unknown MFG-only codecs.
Signed-off-by: NSasha Khapyorsky <sashak@smlink.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

AC97 Codec
No index is templated for si3036 modem controls.
Signed-off-by: NSasha Khapyorsky <sashak@smlink.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

AC97 Codec
No index is templated for mdoem controls.
Signed-off-by: NSasha Khapyorsky <sashak@smlink.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

OPL3SA2 driver
Signed-off-by: NDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>