From: Ilkka Virta <itvirta@iki.fi>

In the lockup situation the driver seems to go off in an eternal storm
of interrupts right after calling request_irq(). It doesn't actually
do anything interesting in the interrupt handler. Since connecting the link
afterwards works, something later in initialization must fix this.

Looking at gem_do_start() and gem_open(), it seems that the only thing
done while opening the device after the request_irq(), is a call to
napi_enable().

I don't know what the ordering requirements are for the
initialization, but I boldly tried to move the napi_enable() call
inside gem_do_start() before the link state is checked and interrupts
subsequently enabled, and it seems to work for me. Doesn't even break
anything too obvious...
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some Realtek chips (RTL8169sb/8110sb in my case) are unable to retrieve
ethtool statistics when the interface is down. The process stays in
endless loop in rtl8169_get_ethtool_stats. This is because these chips
need to have receiver enabled (CmdRxEnb bit in ChipCmd register) that is
cleared when the interface is going down. It's better to update statistics
only when the interface is up and otherwise return copy of statistics
grabbed when the interface was up (in rtl8169_close).

It is interesting that PCI-E NICs (like 8168b/8111b...) are not affected.
Signed-off-by: NIvan Vecera <ivecera@redhat.com>
Acked-by: NFrancois Romieu <romieu@fr.zoreil.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

SOFT_RESET must be asserted for at least 3 TX clocks in order for it to work
properly.  The syncs in the gfar_write() commands have been hiding this, but
we need to guarantee it.
Signed-off-by: NAndy Fleming <afleming@freescale.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

BD_LENGTH_MASK is supposed to catch the low 16-bits of the status field, not
the low byte.  The old way, we would never be able to clean up tx packets with
sizes divisible by 256.
Signed-off-by: NAndy Fleming <afleming@freescale.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The LRO switch is always set to 1 in the rx processing loop.
It breaks the accelerated iSCSI receive traffic.
Fix its computation.
Signed-off-by: NDivy Le Ray <divy@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is the right thing to do and fixes the following warning:

[  115.012278] ------------[ cut here ]------------
[  115.012281] WARNING: at drivers/pci/pci-driver.c:370
pci_legacy_suspend+0x85/0xc2()
[  115.012285] Hardware name: Latitude D630
[  115.012301] PCI PM: Device state not saved by
iwl3945_pci_suspend+0x0/0x4c [iwl3945]
[  115.012304] Modules linked in: fuse nfsd lockd nfs_acl auth_rpcgss
exportfs sunrpc ipv6 acpi_cpufreq kvm_intel kvm snd_hda_codec_idt
snd_hda_intel snd_hda_codec snd_hwdep arc4 snd_seq_device snd_pcm_oss
snd_mixer_oss ecb snd_pcm cryptomgr aead snd_timer crypto_blkcipher
snd snd_page_alloc ohci1394 crypto_hash crypto_algapi ch341 ieee1394
usbserial thermal iwl3945 mac80211 led_class lib80211 tg3 processor
i2c_i801 i2c_core sg cfg80211 libphy usbhid battery ac button sr_mod
cdrom evdev dcdbas ata_generic ata_piix libata sd_mod scsi_mod ext3
jbd mbcache uhci_hcd ohci_hcd ehci_hcd usbcore [last unloaded:
microcode]
[  115.012374] Pid: 4163, comm: pm-suspend Not tainted
2.6.29-rc3-00227-gf1dd849-dirty #67
[  115.012377] Call Trace:
[  115.012382]  [<ffffffff8023d04d>] warn_slowpath+0xb1/0xed
[  115.012387]  [<ffffffff80450b5e>] ? _spin_unlock_irqrestore+0x5c/0x78
[  115.012390]  [<ffffffff80254f08>] ? up+0x34/0x39
[  115.012394]  [<ffffffff80362319>] ? acpi_ut_release_mutex+0x5d/0x61
[  115.012397]  [<ffffffff803584b2>] ? acpi_get_data+0x5e/0x70
[  115.012400]  [<ffffffff80363dd9>] ? acpi_bus_get_device+0x25/0x39
[  115.012403]  [<ffffffff80363e98>] ? acpi_bus_power_manageable+0x11/0x29
[  115.012406]  [<ffffffff803462f7>] ? acpi_pci_power_manageable+0x17/0x19
[  115.012410]  [<ffffffff8033ddfd>] ? pci_set_power_state+0xcc/0x101
[  115.012418]  [<ffffffffa01f28e9>] ? iwl3945_pci_suspend+0x0/0x4c [iwl3945]
[  115.012422]  [<ffffffff803401e6>] pci_legacy_suspend+0x85/0xc2
[  115.012425]  [<ffffffff80340316>] pci_pm_suspend+0x34/0x86
[  115.012429]  [<ffffffff8039d7ce>] pm_op+0x52/0xe5
[  115.012432]  [<ffffffff8039dd78>] device_suspend+0x32a/0x451
[  115.012436]  [<ffffffff80269ec2>] suspend_devices_and_enter+0x3e/0x13a
[  115.012439]  [<ffffffff8026a128>] enter_state+0x110/0x164
[  115.012442]  [<ffffffff8026a233>] state_store+0xb7/0xd7
[  115.012446]  [<ffffffff8032f95f>] kobj_attr_store+0x17/0x19
[  115.012449]  [<ffffffff80307d64>] sysfs_write_file+0xe4/0x119
[  115.012453]  [<ffffffff802baa7a>] vfs_write+0xae/0x137
[  115.012456]  [<ffffffff802babc7>] sys_write+0x47/0x70
[  115.012459]  [<ffffffff8020b73a>] system_call_fastpath+0x16/0x1b
[  115.012467] ---[ end trace 829828966f6f24dc ]---
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Tested-by: NMing Lei <tom.leiming@gmail.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Cleans uCode key table bit map iwl_clear_stations_table
since all stations are cleared also the key table must be.

Since the keys are not removed properly on suspend by mac80211
this may result in exhausting key table on resume leading
to memory corruption during removal
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

On machine were no IO ports are assigned the call
to pci_enable_device() will fail, even if need_ioport
is false, we need to use pci_enable_device_mem() here.
Signed-off-by: NKarsten Keil <kkeil@suse.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A recent patch by Stephen Hemminger to convert XPNET to use net_device_ops and
internal net_device_stats failed to link the net_device_ops structure to the
net_device structure. See commit e8ac9c55
("xpnet: convert devices to new API").
Signed-off-by: NDean Nelson <dcn@sgi.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NCord Walter <qord@cwalter.net>
Signed-off-by: NKomuro <komurojun-mbn@nifty.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds a few device ID's. It also removes an ID that was used
in an internal engineering version of a device and will never see
commercial light. Even if this ID will be 'recycled' in the future,
which is very unlikely, we don't know what kind of device will be
behind it. Therefore it's safer to remove it.
Signed-off-by: NFilip Aben <f.aben@option.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Change spin_locks to irqsave to prevent dead-locks.
Protect adding and deleting to/from dca_providers list.
Drop the lock during dca_sysfs_add_req() and dca_sysfs_remove_req() calls
as they might sleep (use GFP_KERNEL allocation).
Signed-off-by: NMaciej Sosnowski <maciej.sosnowski@intel.com>
Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

while (limit--)
	if (test())
		break;

if (limit <= 0)
	goto test_failed;

In the last iteration, limit is decremented after the test to 0.
If just thereafter test() succeeds and a break occurs, the goto
still occurs because limit is 0.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

while (timeout--) { ... }

timeout becomes -1 if the loop isn't ended otherwise, not 0.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The host really shouldn't be notifying us of config changes
before the device status is VIRTIO_CONFIG_S_DRIVER or
VIRTIO_CONFIG_S_DRIVER_OK.

However, if we do happen to be interrupted while we're not
attached to a driver, we really shouldn't oops. Prevent
this simply by checking that device->driver is non-NULL
before trying to notify the driver of config changes.

Problem observed by doing a "set_link virtio.0 down" with
QEMU before the net driver had been loaded.
Signed-off-by: NMark McLoughlin <markmc@redhat.com>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Without this the 2nd port gets first ports MAC addr.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With the PXA270 MMC hardware, there seems to be an issue of
data corruption on writes where a 4KB data block is offset
by one byte.

If we delay enabling the DMA for writes until after the CMD/RESP
has finished, the problem seems to be fixed.

related to PXA270 Erratum #91
Tested-by: NVernon Sauder <VernonInHand@gmail.com>
Signed-off-by: NCliff Brake <cbrake@bec-systems.com>
Acked-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

Signed-off-by: NCliff Brake <cbrake@bec-systems.com>
Acked-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

If ricoh_mmc suspends before sdhci_pci, it will pull the card
out from under the controller, which could leave the system in
a very confused state.

Using suspend_late/resume_early ensures that sdhci_pci suspends first
and resumes second.
Signed-off-by: NPhilip Langdale <philipl@overt.org>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

This patch adds support for the ST Microelectronics version of
the PL180 PrimeCell. They use designer ID 0x80 and have a few
alterations/bugfixes related to open drain and HW flow control.
They also add some SDIO registers, I am unsure if these are
in ST HW only or if this is things also added in later ARM
revisions, but they are included in the mmci.h file for
completeness.
Signed-off-by: NLinus Walleij <linus.walleij@ericsson.com>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

This patch adds a MX2/MX3 specific SDHC driver. The hardware is basically
the same as in the MX1, but unlike the MX1 controller the MX2
controller just works as expected. Since the MX1 driver has more
workarounds for bugs than anything else I had no success with supporting
MX1 and MX2 in a sane way in one driver.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

We need to pass struct ide_port_info also to ide_host_register().

v2:
Fix v5/v6 mismatch noticed by Russell.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

The bcount is greater than 0 and less than or equal to 0x10000.
Thus '(bcount & 0xffff) == 0x0000' can be simplified as 'bcount == 0x10000'.
Suggested-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

This is a port of libata's pata_cs5536.c (written by Martin K. Petersen)
to IDE subsystem.

Changes done while at it:

* Reprogram PIO/MWDMA timings if needed before and after DMA transfer
  (chipset uses shared PIO/MWDMA timings).

* Fix cable detection to report 80-wires cable if BIOS set it for any
  device on a port (IDE core will do drive-side cable detection later).

* Don't disable UDMA while programming PIO timings.

* Simplify PCI/MSR support.

Pros of having IDE host driver in addition to libata's one:

* IDE is much lighter than SCSI+libata, the host driver itself is also
  a bit smaller:

   text    data     bss     dec     hex filename
   1261     496       4    1761     6e1 drivers/ata/pata_cs5536.o
   1242     128       4    1374     55e drivers/ide/cs5536.o

* This allows use of IDE features which are unavailable under libata.

v2:
* Fixes per review from Sergei:
  - simplify dependency check in Kconfig
  - use IDE_DRV_MASK also for ->drive_data
  - disable UDMA when programming MWDMA
  - program new DTC timings only when necessary
  - fix printk() level in cs5536_init_one()

* Fix patch description according to comments from Alan and Sergei.

v3:
* Smarter masking of UDMA bits per Sergei's suggestion.

Cc: Martin K. Petersen <mkp@mkp.net>
Cc: Karl Auerbach <karl@iwl.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

The AmigaOne uses the onboard VIA IDE controller in legacy mode (like the
Pegasos).
Signed-off-by: NGerhard Pircher <gerhard_pircher@gmx.net>
Cc: "Grant Likely" <grant.likely@secretlab.ca>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

On reboot the loop in device_shutdown gets confused by these partially
initialized devices and goes into an infinite loop. Therefore unregister
and disable these devices.
Signed-off-by: NIan Campbell <ian.campbell@citrix.com>
[bart: remove leftover hwif->present clearing + update patch description]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Factor out port freeing from ide_host_free() to ide_free_port().

* Add ide_disable_port() and use it on ide_register_port() failure.

Cc: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Cc: linux-ide@vger.kernel.org
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

This one fixes http://bugzilla.kernel.org/show_bug.cgi?id=12320.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Since the complete re-write in 2.6.10, some PowerMacs (At least PowerMac 5500
and PowerMac G3 Beige rev A) with ATI Mach64 chip have suffered from unstable
columns in their framebuffer image. This seems to depend on a value (4) read
from PLL_EXT_CNTL register, which leads to incorrect DSP config parameters to
be written to the chip. This patch uses a value calculated by aty_init_pll_ct
instead, as a starting point.

There are questions as to whether this should be extended to other platforms
or maybe made dependent on specific chip types, but in the meantime, this has
been tested on various powermacs and works for them so let's commit it.
Signed-off-by: NRisto Suominen <Risto.Suominen@gmail.com>
Tested-by: NMichael Pettersson <mike@it.uu.se>
Cc: <stable@kernel.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Acked-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Just like with the s5h1411, the s5h1409 needs a soft-reset in order for it
to know that the tuner has been told to change frequencies.  This change
changes the behavior from "random tuning times between 500ms to complete
tuning lock failures" to "tuning lock consistently within 700ms".

Thanks to Robert Krakora <rob.krakora@messagenetsystems.com> for doing
initial testing of the patch on the KWorld 330U.

Thanks to Andy Walls <awalls@radix.net> for doing testing of the patch on
the HVR-1600.

Thanks to Michael Krufky <mkrufky@linuxtv.org> for doing additional testing.
Signed-off-by: NDevin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

According with saa7130 public datasheet, saa7130 doesn't support
digital audio. This is also confirmed by experimental tests. So, it
doesn't make sense to let saa7134-alsa register for those chipsets.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fix an off-by-two memory error in console selection.

The loop below goes from sel_start to sel_end (inclusive), so it writes
one more character.  This one more character was added to the allocated
size (+1), but it was not multiplied by an UTF-8 multiplier.

This patch fixes a memory corruption when UTF-8 console is used and the
user selects a few characters, all of them 3-byte in UTF-8 (for example
a frame line).

When memory redzones are enabled, a redzone corruption is reported.
When they are not enabled, trashing of random memory occurs.
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The mmap_region() code would temporarily set the VM_ACCOUNT flag for
anonymous shared mappings just to inform shmem_zero_setup() that it
should enable accounting for the resulting shm object.  It would then
clear the flag after calling ->mmap (for the /dev/zero case) or doing
shmem_zero_setup() (for the MAP_ANON case).

This just resulted in vma merge issues, but also made for just
unnecessary confusion.  Use the already-existing VM_NORESERVE flag for
this instead, and let shmem_{zero|file}_setup() just figure it out from
that.

This also happens to make it obvious that the new DRI2 GEM layer uses a
non-reserving backing store for its object allocation - which is quite
possibly not intentional.  But since I didn't want to change semantics
in this patch, I left it alone, and just updated the caller to use the
new flag semantics.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

When using sgmii the link was not being properly passed up to the driver
from the underlying link management functions.  This change corrects it so
that get_link_status is cleared when a link has been found.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A panic has been observed with frame sizes smaller than 1K.  This has been
root caused to the hardware spanning larger frames across multiple buffers
and then reporting the original frame size in the first descriptor.  To
prevent this we can enable set the LPE bit which in turn will restrict
packet sizes to those set in the RLPML register.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

82576 was being incorrectly flagged as needing a context index.  It does not as
each ring has it's own table of 2 contexts.

Driver was registering after registering the driver instead of the other way around.
Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>