Currently the io_apic.c has several parallel arrays for different
kinds of data that can be know about an irq.  The parallel arrays
make the code harder to maintain and make it difficult to remove
the static limits on the number of the number of irqs.

This patch pushes irq_data and irq_vector into a irq_cfg array and
updates the code to use it.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

NR_IRQ_VECTORS is currently a compatiblity define set to NR_IRQs.
This patch updates the users of NR_IRQ_VECTORS to use NR_IRQs instead
so that NR_IRQ_VECTORS can be removed.

There is still shared code with arch/i386 that uses NR_IRQ_VECTORS
so we can't remove the #define just yet :(
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

If we have an irq that comes from multiple io_apic pins the FINAL action
(which is io_apic_sync or nothing) needs to be called for every entry or
else if the two pins come from different io_apics we may not wait until
after the action happens on the io_apic.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

For some reason the code has been picking TARGET_CPUS when asked to
set the affinity to an empty set of cpus.  That is just silly it's
extra work.  Instead if there are no cpus to set the affinity to we
should just give up immediately.  That is simpler and a little more
intuitive.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Currently we have two routines that do practically the same thing
setup_IO_APIC_irq and io_apic_set_pci_routing.  This patch makes
setup_IO_APIC_irq the common factor of these two previous routines.
For setup_IO_APIC_irq all that was needed was to pass the trigger
and polarity to make the code a proper subset of io_apic_set_pci_routing.

Hopefully consolidating these two routines will improve maintenance
there were several differences that simply appear to be one routine
or the other getting it wrong.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

It's dead Jim.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch replaces all instances of "set_native_irq_info(irq, mask)"
with "irq_desc[irq].affinity = mask".  The latter form is clearer
uses fewer abstractions, and makes access to this field uniform
accross different architectures.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

By precomputing old_mask I remove an extra if statement, remove an
indentation level and make the code slightly easier to read.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This reverts commit 2ff2d3d7.

Uwe Bugla reports that he cannot mount a floppy drive any more, and Jiri
Slaby bisected it down to this commit.

Benjamin LaHaise also points out that this is a big hot-path, and that
interrupt delivery while idle is very common and should not go through
all these expensive gyrations.

Fix up conflicts in arch/i386/kernel/apic.c and arch/i386/kernel/irq.c
due to other unrelated irq changes.

Cc: Stephane Eranian <eranian@hpl.hp.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Uwe Bugla <uwe.bugla@gmx.de>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] One line missing from previous commit
  [CIFS] mtime bounces from local to remote when cifs nocmtime i_flags overwritten
  [CIFS] fix &&/& typo in cifs_setattr()

This reverts commit d2ed1635.

As Thomas Gleixner reports:
  "e1000 is not working anymore. ifup fails permanentely.
    ADDRCONF(NETDEV_UP): eth0: link is not ready
   nothing else"

The broken commit was identified with "git bisect".

Auke Kok says:
  "I think we need to drop this now.  The report that says that this
   *fixes* something might have been on regular interrupts only.  I
   currently suspect that it breaks all MSI interrupts, which would make
   sense if I look a the code.  Very bad indeed."

Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: NAuke Kok <auke-jan.h.kok@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Not only was the function way too big to be inlined in the first place,
it was used before it was even defined.
Noted-by: NFaik Uygur <faik@pardus.org.tr>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (196 commits)
  V4L/DVB (5253): Qt1010: whitespace / 80 column cleanups
  V4L/DVB (5252): Qt1010: use ARRAY_SIZE macro when appropriate
  V4L/DVB (5251): Qt1010: fix compiler warning
  V4L/DVB (5249): Fix compiler warning in vivi.c
  V4L/DVB (5247): Stv0297: Enable BER/UNC counting
  V4L/DVB (5246): Budget-ci: IR handling fixups
  V4L/DVB (5245): Dvb-ttpci: use i2c gate ctrl from stv0297 frontend driver
  V4L/DVB (5244): Dvbdev: fix illegal re-usage of fileoperations struct
  V4L/DVB (5178): Avoid race when deregistering the IR control for dvb-usb
  V4L/DVB (5240): Qt1010: use i2c_gate_ctrl where appropriate
  V4L/DVB (5239): Whitespace / 80-column cleanups
  V4L/DVB (5238): Kconfig: qt1010 should be selected by gl861 and au6610
  V4L/DVB (5237): Dvb: add new qt1010 tuner module
  V4L/DVB (5236): Initial support for Sigmatek DVB-110 DVB-T
  V4L/DVB (5235): Gl861: use parallel_ts
  V4L/DVB (5234): Gl861: remove unneeded declaration
  V4L/DVB (5233): Gl861: correct address of the bulk endpoint
  V4L/DVB (5232): Gl861: correct oops when loading module
  V4L/DVB (5231): Gl861: whitespace cleanups
  V4L/DVB (5230): Gl861: remove NULL entry from gl861_properties
  ...

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Use ARRAY_SIZE macro already defined in kernel.h
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

In function 'qt1010_init':
Signed-off-by: NMarco Schluessler <marco@lordzodiac.de>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The result of copy_to_user was not used, so the compiler complained
now a warning will be issued if copy_to_user fails.
Signed-off-by: NMarcel Siegert <mws@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Enable BER/UNC counting for the stv0297 frontend.
The idea for this patch comes from stv0297_cs.c.
Signed-off-by: NHartmut Birr <e9hack@googlemail.com>
Signed-off-by: NOliver Endriss <o.endriss@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Commit 00c4cc67 Oliver Endriss changed 
the budget-ci driver to use interrupt mode for i2c transfers.

This also meant that a new bunch of IR bytes that were previously lost 
are now received, which allowed me to better understand how the MSP430 
chip works. Unfortunately it also means that the current driver gets 
some assumptions wrong and might generate double keypresses for one IR 
command. 

The attached patch fixes this by throwing away the repeat bytes and by 
associating the correct command and device bytes.
Signed-off-by: NDavid Härdeman <david@hardeman.nu>
Signed-off-by: NOliver Endriss <o.endriss@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Use i2c gate ctrl from stv0297 frontend driver.
Signed-off-by: NMarco Schluessler <marco@lordzodiac.de>
Signed-off-by: NOliver Endriss <o.endriss@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Arjan van de Ven <arjan@infradead.org> reported an illegal re-usage of 
the fileoperations struct if more than one dvb device (e.g. frontend) is 
present. 

This patch fixes this issue.  

It allocates a new fileoperations struct each time a device is 
registered and copies the default template fileops.
Signed-off-by: NMarcel Siegert <mws@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The work item function is dvb_usb_read_remote_control():
        INIT_WORK(&d->rc_query_work, dvb_usb_read_remote_control, d);
and the last piece of work it does is:
        schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc_interval));
Hence you need to call "cancel_rearming_delayed_work()" and not
"cancel_delayed_work()", correct?  I certainly haven't seen this oops
reoccur since I applied this patch.
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This patch adds calls to i2c_gate_ctrl in the qt1010 dvb tuner module,
while removing the temporary hack in au6610 and gl861.
Tested successfully against fi-Oulu frequencies with
MSI Megasky 580 GL861 and Sigmatek DVB-110 AU6610.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

gl861: (MSI Megasky)
- hack for enable ZL10353 / QT1010 I2C gate
- use new QT1010 module instead of old code

au6610: (Sigmatek DVB-110)
- hack for enable ZL10353 / QT1010 I2C gate
- use new QT1010 module instead of old code

Tested successfully with au6610 and gl861 devices against fi-Yllas
frequencies. Now it locks perfectly with both devices.
There is a "hack" to enable probable i2c gate in zl10535
demodulator. QT1010 doesn't respond to any i2c messages before we
write 0x1a to demodulator register 0x62. In my understanding this
should be fixed to demodulator code.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This patch adds driver for Sigmatek DVB-110 USB DVB-T stick. Stick has based
on hardware of Qtuantek QT1010 tuner, Zarlink ZL10353 (Intel CE 6353)
demodulator and Alcor Micro AU6610 DVB-T USB controller. HW is rather similar
as used in MSI Megasky GL861.
Currently, the driver works only in USB 2.0. In my understanding USB 1.1 is
also supported by hw but I cannot test it due to lack of USB 1.1 port. Device
supports only isochronous mode transfers. There is also eeprom in usb
controller(at least in address range 0x80 - 0xbf) for storing data, eg.
firmware. Anyway, firmware loading is not used / required by the device.
There seems to be at least one unknown I2C device in address 0xa0, probably
remote control or GPIO. Windows drivers reads registers from 0x00 to 0x07
from this unknown address.
Driver is based on gl861 module. Tuner has a lot of problems to lock with
megasky qt1010 module with this hardware with some broadcasting standards.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

- use parallel_ts - Now this driver works.
- correct typo in MODULE_VERSION
Signed-off-by: NCarl Lundqvist <comabug@gmail.com>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

remove unneeded declaration of .generic_bulk_ctrl_endpoint

generic_bulk_ctrl_endpoint isn't being used in this device, so this
is not needed here.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The megasky 580 based on gl861 has three endpoints:
- 0x81 BULK/ISOC	IN	MPEG2 TS
- 0x83 INT			IN	remote control receiver
- 0x02 BULK			OUT	bulk control endpoint
It doesn't look like the bulk endpoint is used, but better to
have the correct one in the config.
Signed-off-by: NJan Nijs <jan.nijs@scarlet.be>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This patch moves the DVB_USB_IS_AN_I2C_ADAPTER flag from the adapter
properties to the device properties.
Without this patch I get an OOPS when the gl861 driver tries to
access any registers.
Signed-off-by: NJan Nijs <jan.nijs@scarlet.be>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The gl861_tuner_attach function is not specific to this device.
This patch removes gl861_tuner_attach, and replaces it with
qt1010_tuner_attach from the qt1010 header file.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

enclose disabled code inside an #if 0 block, instead of /* comments */
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Rename driver_name from "gl861" to "dvb_usb_gl861"
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The author's email address is already in the MODULE_AUTHOR field.
This patch adds his name as well.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>