In the commit f522886e20 a merge conflict
in the sdhci-s3c driver been fixed. However the fix used incorrect
spinlock operation - it caused a race with sdhci interrupt service. The
correct way to solve it is to use spin_lock_irqsave/irqrestore() calls.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
At least on older 21041-AA chips (mine is rev. 11), TP duplex autonegotiation
causes the card not to work at all (link is up but no packets are transmitted).
de4x5 disables autonegotiation completely. But it seems to work on newer
(21041-PA rev. 21) so disable it only on rev<20 chips.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
x86/hwmon: pkgtemp has no dependency on PCI
MAINTAINERS: Update hwmon entry
x86/hwmon: register alternate sibling upon CPU removal
x86/hwmon: fix initialization of pkgtemp
x86/hwmon: fix initialization of coretemp
x86/hwmon: don't leak device attribute file from pkgtemp_probe() and pkgtemp_remove()
x86/hwmon: avoid deadlock on CPU removal in pkgtemp
x86/hwmon: fix module init for hotplug-but-no-device-found case
hwmon: (lis3) Fix Oops with NULL platform data
While fb isn't active, we should clear CFG_GRA_ENA bit. The existing code
can't clear this bit.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
When the Lenovo Ideapad S10-3 is booted with HT enabled,
it hits a boot hang in the intel_idle driver.
This occurs when entering ATM-C4 for the first time,
unless BM_STS is first cleared.
acpi_idle doesn't see this because it first checks
and clears BM_STS, but it would hit the same hang
if that check were disabled.
http://bugs.meego.com/show_bug.cgi?id=7093https://bugs.launchpad.net/ubuntu/+source/linux/+bug/634702
Signed-off-by: Len Brown <len.brown@intel.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: update Kconfig help text for CONFIG_USB_SUSPEND
usb: musb: gadget: restart request on clearing endpoint halt
usb: musb: host: Issue a memory barrier before starting DMA
usb: musb: gadget: fix dma length in txstate
usb: musb: gadget: complete request only if data is transfered over
usb: musb: gadget: fix DMA length for OUT transfer
usb: musb: gadget: enable autoclear for OUT transfer in both DMA 0 and DMA 1
usb: musb: gadget: fix bulk IN infinit hangs in double buffer case
usb: musb: gadget: fix kernel panic if using out ep with FIFO_TXRX style
USB: fix bug in initialization of interface minor numbers
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
vgaarb: trivial fix
drm: radeon cleanup fixes...
drm: fix trivial coding errors
drm: ttm sparse fixes.
drm/nouveau: fix panels using straps-based mode detection
drm/ttm: Clear the ghost cpu_writers flag on ttm_buffer_object_transfer.
drm/radeon: don't allow device to be opened if powered down
Commit 2a6b69765a (ACPI: Store NVS
state even when entering suspend to RAM) changed the ACPI suspend
to RAM code so that the NVS memory area is always unconditionally
saved during suspend and restored during resume, since some systems
evidently need that for the suspend-resume to work on them. However,
it turned out that this change broke suspend-resume on a few systems,
so commit 72ad5d77fb (ACPI / Sleep:
Allow the NVS saving to be skipped during suspend to RAM) introduced
the acpi_sleep=nonvs command line switch to allow their users to
work around this issue. To keep track of the systems that require
this workaround and to make the life of their users slightly easier
blacklist them in acpisleep_dmi_table[].
https://bugzilla.kernel.org/show_bug.cgi?id=16396
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Other than coretemp, from which this code was apparently derived, there
is no PCI specific code in this driver.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Just like pkgtemp registers another core of the same package when one
gets removed, coretemp should register another hyperthread (if
available) in that situation.
As pointed out in the patch fixing the respective code in pkgtemp, the
list protectng mutex must be dropped before calling
coretemp_device_add(), and due to the restructured loop (including an
explicit return) the "safe" variant of the list iterator isn't needed
anymore.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Feature availability should also be checked in the hotplug code path.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Using cpuid_eax() to determine feature availability on other than
the current CPU is invalid. And feature availability should also be
checked in the hotplug code path.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
pkgtemp_device_remove(), holding the list protecting mutex, calls
pkgtemp_device_add(), which itself wants to acquire the same mutex.
Holding the mutex over the entire loop body in pkgtemp_device_remove()
isn't really necessary, as long as the loop gets exited after
processing the matched CPU.
Once exiting the loop after removing an eventual match, there's no
need for using the "safe" list iterator anymore.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
In commit 0dca94baea the call to
platform_driver_unregister() was made conditional upon !HOTPLUG_CPU,
but the return value from coretemp_init() was left to indicate an
error. This isn't correct, as the negative return value indicates to
the module loader that initialization failed, which isn't intended
here and results in dangling pointers.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
The recent addition of threaded irq handler causes a NULL dereference
when used with hp_accel driver, which has NULL pdata.
Acked-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This patch (as1429) updates the Kconfig help text for
CONFIG_USB_SUSPEND. The power/level file is now deprecated; we should
tell people to use power/control instead.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Commit 46034dca51 (USB: musb_gadget_ep0: stop
abusing musb_gadget_set_halt()) forgot to restart a queued request after
clearing the endpoint halt feature. This results in a couple of USB resets
while enumerating the file-backed storage gadget due to CSW packet not being
sent for the MODE SENSE(10) command.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable@kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes the issue which was observed while transfering
a large file ( > 20MB) over USB (OMAP MUSB controller acts as USB host)
to an attached USB thumb drive.
It was found that CDB field of CBW packet was set to 0x0. This was
due to missing a barrier before DMA engine starts transfer.
This buffer is allocated using dma_alloc_coherent which gives
non-cacheble but bufferable memory and hence needed a write
memory barrier to flush the write buffer.
More info on this thread is here:
http://www.spinics.net/lists/linux-omap/msg33987.html
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Maulik Mankad <x0082077@ti.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
DMA length should not go beyond the availabe space
of request buffer, so fix it.
Also set max_len of cppi dma channel as max size of
int type, so make musb dma handling happier.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Complete the current request only if the data transfer is over.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
DMA length should not go beyond the availabe space of request buffer,
so fix it.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes one bugs of OUT transfer in double buffer case:
-the current code only enable autoclear for dma mode 1, and not
for dma mode 0
Without this patch, test #5 of usbtest can't be passed if we
configure musb as g_zero and use fifo mode 3 to enable double
buffer mode.
With this patch and the following patch(fix dma length),
on my beagle B5, test#5(queued bulk out) may go beyond
18Mbyte/s(seems dma mode 0 is quicker in double buffer case)
if musb is configured as g_zero and fifo mode 3 is taken, follows
the test command:
#./testusb -D DEV_NAME -c 1024 -t 5 -s 32768 -g 8 [1]
Also I have tested this patch can't make g_ether broken.
[1],source of testusb : tools/usb/testusb.c under linux kernel;
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes one infinite hang of bulk IN transfer in double buffer
case, the hang can be observed easily by test #6 of usbtest if musb is
configured as g_zero and fifo mode 3 is taken to enable double fifo.
In fact, the patch only removes the check for non-empty fifo before
loading data from new request into fifo since the check is not correct:
-in double buffer case, fifo may accommodate more than one packet,
even though it has contained one packet already and is non-empty
-since last DMA is completed before calling musb_g_tx, it is sure
that fifo may accommodate at least one packet
Without applying the patch, new requst enqueued from .complte may not
have a chance to be loaded into fifo, then will never be completed and
cause infinite hangs.
With the patch, on my beagle B5, test#6(queued bulk in) can be passed and
test result may go beyond 33Mbyte/s if musb is configured as g_zero and
fifo mode 3 is taken, follows the test command:
#testusb -D DEV_NAME -c 1024 -t 6 -s 32768 -g 8 [1]
[1],
-source of testusb : tools/usb/testusb.c under linux kernel;
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Recent changes in the usbhid layer exposed a bug in usbcore. If
CONFIG_USB_DYNAMIC_MINORS is enabled then an interface may be assigned
a minor number of 0. However interfaces that aren't registered as USB
class devices also have their minor number set to 0, during
initialization. As a result usb_find_interface() may return the
wrong interface, leading to a crash.
This patch (as1418) fixes the problem by initializing every
interface's minor number to -1. It also cleans up the
usb_register_dev() function, which besides being somewhat awkwardly
written, does not unwind completely on all its error paths.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Philip J. Turmel <philip@turmel.org>
Tested-by: Gabriel Craciunescu <nix.or.die@googlemail.com>
Tested-by: Alex Riesen <raa.lkml@gmail.com>
Tested-by: Matthias Bayer <jackdachef@gmail.com>
CC: Jiri Kosina <jkosina@suse.cz>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In order to support multiple ST platform devices, a new symbol
'st_get_plat_device' earlier needed to be exported by the arch/XX/brd-XX.c
file which intends to add the ST platform device.
On removing this dependency, now inside ST driver maintain the array of
ST platform devices that would be registered.
As of now let id=0, as and when we end up having such platforms
where mutliple ST devices can exist, id would come from
protocol drivers (BT, FM and GPS) as to on which platform device
they want to register to.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Anca Emanuel <anca.emanuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Correct function being needlessly visible outside compilation unit
when the only users are internal.
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Fix string interpreted as trigraph and typo.
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Correct function storage class, and correct assignment type.
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Correct allocation flags type and function prototype for ANSI C compliance.
[airlied: whitespace fixed]
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
nouveau_bios_fp_mode() zeroes the mode struct before filling in relevant
entries. This nukes the mode id initialised by drm_mode_create(), and
causes warnings from idr when we try to remove the mode.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
When using simultaneously the two DMA channels on a same engine, some
transfers are never completed. For example, an endless lock can occur
while writing heavily on a RAID5 array (with async-tx offload support
enabled).
Note that this issue can also be reproduced by using the DMA test
client.
On a same engine, the interrupt cause register is shared between two
DMA channels. This patch make sure that the cause bit is only cleared
for the requested channel.
Signed-off-by: Simon Guinot <sguinot@lacie.com>
Tested-by: Luc Saillard <luc@saillard.org>
Acked-by: saeed bishara <saeed.bishara@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Change the code so that it will use the correct size for keymap entries.
Do it in a way that makes it harder to screw it up in the future.
Reported-by: Jaime Velasco Juan <jsagarribay@gmail.com>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
In the event that the external chipset doesn't implement the
GET_SUPPORTED_ENHANCEMENTS commands, gracefully treat it as having no
enhancments rather than bailing.
Reported-and-tested-by: Woody Suwalski <terraluna977@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18342
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
We weren't unlinking the freed connector from the drm lists, and so
hit some use-after-free if we failed to initialise the connector.
Reported-and-tested-by: Woody Suwalski <terraluna977@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18342
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
A minor typo caused a single fence register to be incorrectly
programmed, resulting in occassional tiling corruption.
Reported-and-tested-by: Hans de Bruin <bruinjm@xs4all.nl>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18962
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
For non-managed versions of 82579, set the bit that prevents the hardware
from automatically configuring the PHY after resets only when the driver
performs a reset, clear the bit after resets. This is so the hardware can
configure the PHY automatically when the part is reset in a manner that is
not controlled by the driver (e.g. in a virtual environment via PCI FLR)
otherwise the PHY will be mis-configured causing issues such as failing to
link at 1000Mbps.
For managed versions of 82579, keep the previous behavior since the
manageability firmware will handle the PHY configuration.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The subject workaround was causing CRC errors due to writing the wrong
register with updates of the RCTL register. It was also found that the
workaround function which modifies the RCTL register was being called in
the middle of a read-modify-write operation of the RCTL register, so the
function call has been moved appropriately. Lastly, jumbo frames must not
be allowed when CRC stripping is disabled by a module parameter because the
workaround requires the CRC be stripped.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On 82579, there is a hardware bug that can cause received packets to not
get transferred from the PHY to the MAC due to K1 (a power saving feature
of the PHY-MAC interconnect similar to ASPM L1). Since the MAC controls
the accounting of missed packets, these will go unnoticed. Workaround the
issue by setting the K1 beacon duration according to the link speed.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Two recent patches to cleanup the reset[1] and initial PHY configuration[2]
code paths for ICH/PCH devices inadvertently left out a 10msec delay and
device ID check respectively which are necessary for the 82566DC (device id
0x104b) to be configured properly, otherwise it will not get link.
[1] commit e98cac447c
[2] commit 3f0c16e844
CC: stable@kernel.org
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since the hardware is prevented from performing automatic PHY configuration
(the driver does it instead), the OEM_WRITE_ENABLE bit in the EXTCNF_CTRL
register will not get cleared preventing the SMBus address and the LED
configuration to be written to the PHY registers. On 82579, do not check
the OEM_WRITE_ENABLE bit.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When going to Sx, disable gigabit in PHY (e1000_oem_bits_config_ich8lan)
in addition to the MAC before configuring PHY wakeup otherwise the PHY
configuration writes might be missed. Also write the LED configuration
and SMBus address to the PHY registers (e1000_oem_bits_config_ich8lan and
e1000_write_smbus_addr, respectively). The reset is no longer needed
since re-auto-negotiation is forced in e1000_oem_bits_config_ich8lan and
leaving it in causes issues with auto-negotiating the link.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This change resolves a problem about unbalanced calls of
enable_irq_wakeup() and disable_irq_wakeup() for alarm interrupt.
Bug reproduction:
root@eb600:~# echo 0 > /sys/class/rtc/rtc0/wakealarm
WARNING: at kernel/irq/manage.c:361 set_irq_wake+0x7c/0xe4()
Unbalanced IRQ 46 wake disable
Modules linked in:
[<c0025708>] (unwind_backtrace+0x0/0xd8) from [<c003358c>] (warn_slowpath_common+0x44/0x5c)
[<c003358c>] (warn_slowpath_common+0x44/0x5c) from [<c00335dc>] (warn_slowpath_fmt+0x24/0x30)
[<c00335dc>] (warn_slowpath_fmt+0x24/0x30) from [<c0058c20>] (set_irq_wake+0x7c/0xe4)
[<c0058c20>] (set_irq_wake+0x7c/0xe4) from [<c01b5e80>] (s3c_rtc_setalarm+0xa8/0xb8)
[<c01b5e80>] (s3c_rtc_setalarm+0xa8/0xb8) from [<c01b47a0>] (rtc_set_alarm+0x60/0x74)
[<c01b47a0>] (rtc_set_alarm+0x60/0x74) from [<c01b5a98>] (rtc_sysfs_set_wakealarm+0xc8/0xd8)
[<c01b5a98>] (rtc_sysfs_set_wakealarm+0xc8/0xd8) from [<c01891ec>] (dev_attr_store+0x20/0x24)
[<c01891ec>] (dev_attr_store+0x20/0x24) from [<c00be934>] (sysfs_write_file+0x104/0x13c)
[<c00be934>] (sysfs_write_file+0x104/0x13c) from [<c0080e7c>] (vfs_write+0xb0/0x158)
[<c0080e7c>] (vfs_write+0xb0/0x158) from [<c0080fcc>] (sys_write+0x3c/0x68)
[<c0080fcc>] (sys_write+0x3c/0x68) from [<c0020ec0>] (ret_fast_syscall+0x0/0x28)
Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Ben Dooks <ben@fluff.org.uk>
Cc: Atul Dahiya <atul.dahiya@samsung.com>
Cc: Taekgyun Ko <taeggyun.ko@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/pci/intel-iommu.c: In function `__iommu_calculate_agaw':
drivers/pci/intel-iommu.c:437: sorry, unimplemented: inlining failed in call to 'width_to_agaw': function body not available
drivers/pci/intel-iommu.c:445: sorry, unimplemented: called from here
Move the offending function (and its siblings) to top-of-file, remove the
forward declaration.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=17441
Reported-by: Martin Mokrejs <mmokrejs@ribosome.natur.cuni.cz>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The FBIOGET_VBLANK device ioctl allows unprivileged users to read 16 bytes
of uninitialized stack memory, because the "reserved" member of the
fb_vblank struct declared on the stack is not altered or zeroed before
being copied back to the user. This patch takes care of it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Enable the EFI framebuffer on 14 more Macs, including the iMac11,1
iMac10,1 iMac8,1 Macmini3,1 Macmini4,1 MacBook5,1 MacBook6,1 MacBook7,1
MacBookPro2,2 MacBookPro5,2 MacBookPro5,3 MacBookPro6,1 MacBookPro6,2 and
MacBookPro7,1
Information gathered from various user submissions.
https://bugzilla.redhat.com/show_bug.cgi?id=528232http://ubuntuforums.org/showthread.php?t=1557326
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Luke Macken <lmacken@redhat.com>
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some Apple machines have identical DMI data but different memory
configurations for the video. Given that, check that the address in our
table is actually within the range of a PCI BAR on a VGA device in the
machine.
This also fixes up the return value from set_system(), which has always
been wrong, but never resulted in bad behavior since there's only ever
been one matching entry in the dmi table.
The patch
1) stops people's machines from crashing when we get their display wrong,
which seems to be unfortunately inevitable,
2) allows us to support identical dmi data with differing video memory
configurations
This also adds me as the efifb maintainer, since I've effectively been
acting as such for quite some time.
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In an effort to minimize customer confusion we want to unify naming
convention for VMware-provided kernel modules. This change renames the
balloon driver from vmware_ballon to vmw_balloon.
We expect to follow this naming convention (vmw_<module_name>) for all
modules that are part of mainline kernel and/or being distributed by
VMware, with the sole exception of vmxnet3 driver (since the name of
mainline driver happens to match with the name used in VMware Tools).
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Acked-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
After d9e1b6c450 ("ipmi: fix ACPI detection with regspacing") we get
[ 11.026326] ipmi_si: probing via ACPI
[ 11.030019] ipmi_si 00:09: (null) regsize 1 spacing 1 irq 0
[ 11.035594] ipmi_si: Adding ACPI-specified kcs state machine
on an old system with only one range for ipmi kcs range.
Try to fix it by adding another res pointer.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
"param" can be NULL here, so only dereference it after the check.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
They are allocated in atl1_setup_ring_resources, zero out the pointers
in atl1_free_ring_resources (like the other resources).
Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Acked-by: Chris Snook <chris.snook@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
adapter->cmb.cmb is initialized when the device is opened and freed when
it's closed. Accessing it unconditionally during resume results either
in a crash (NULL pointer dereference, when the interface has not been
opened yet) or data corruption (when the interface has been used and
brought down adapter->cmb.cmb points to a deallocated memory area).
Cc: stable@kernel.org
Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Acked-by: Chris Snook <chris.snook@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
bdi: Fix warnings in __mark_inode_dirty for /dev/zero and friends
char: Mark /dev/zero and /dev/kmem as not capable of writeback
bdi: Initialize noop_backing_dev_info properly
cfq-iosched: fix a kernel OOPs when usb key is inserted
block: fix blk_rq_map_kern bio direction flag
cciss: freeing uninitialized data on error path
The log eventfd signalling got put in dead code.
We didn't notice because qemu currently does polling
instead of eventfd select.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
These devices don't do any writeback but their device inodes still can get
dirty so mark bdi appropriately so that bdi code does the right thing and files
inodes to lists of bdi carrying the device inodes.
Cc: stable@kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
It makes sense for a BO to move after a process has requested
exclusive RW access on it (e.g. because the BO used to be located in
unmappable VRAM and we intercepted the CPU access from the fault
handler).
If we let the ghost object inherit cpu_writers from the original
object, ttm_bo_release_list() will raise a kernel BUG when the ghost
object is destroyed. This can be reproduced with the nouveau driver on
nv5x.
Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Tested-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
If the i2c bus receives an interrupt with both BB (bus busy) and
ARDY (register access ready) statuses set during the tranfer of the last message
the bus was put to idle while still busy.
This caused bus to timeout.
Signed-off-by: Mathias Nyman <mathias.nyman@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Commit 9eecabcb9a ("intel-iommu: Abort
IOMMU setup for igfx if BIOS gave no shadow GTT space") uses a bunch of
magic numbers. Provide #defines for those to make it look slightly saner.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
skb->truesize is set in core network.
Dont change it unless dealing with fragments.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
skb->truesize is set in core network.
Dont change it unless dealing with fragments.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel:
drm/i915: Hold a reference to the object whilst unbinding the eviction list
drm/i915,agp/intel: Add second set of PCI-IDs for B43
drm/i915: Fix Sandybridge fence registers
drm/i915/crt: Downgrade warnings for hotplug failures
drm/i915: Ensure that the crtcinfo is populated during mode_fixup()
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: update comments to reflect LHCALL_LOAD_GDT_ENTRY.
virtio: console: Prevent userspace from submitting NULL buffers
virtio: console: Fix poll blocking even though there is data to read
The "h->scatter_list" is allocated inside a for loop. If any of those
allocations fail, then the rest of the list is uninitialized data. When
we free it we should start from the top and free backwards so that we
don't call kfree() on uninitialized pointers.
Also if the allocation for "h->scatter_list" fails then we would get an
Oops here. I should have noticed this when I send: 4ee69851c "cciss:
handle allocation failure." but I didn't. Sorry about that.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
A userspace could submit a buffer with 0 length to be written to the
host. Prevent such a situation.
This was not needed previously, but recent changes in the way write()
works exposed this condition to trigger a virtqueue event to the host,
causing a NULL buffer to be sent across.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
CC: stable@kernel.org
I found this while working on a Linux agent for spice, the symptom I was
seeing was select blocking on the spice vdagent virtio serial port even
though there were messages queued up there.
virtio_console's port_fops_poll checks port->inbuf != NULL to determine
if read won't block. However if an application reads enough bytes from
inbuf through port_fops_read, to empty the current port->inbuf,
port->inbuf will be NULL even though there may be buffers left in the
virtqueue.
This causes poll() to block even though there is data to be read,
this patch fixes this by using will_read_block(port) instead of the
port->inbuf != NULL check.
Signed-off-By: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
"param->u.wpa_associate.wpa_ie_len" comes from the user. We should
check it so that the copy_from_user() doesn't overflow the buffer.
Also further down in the function, we assume that if
"param->u.wpa_associate.wpa_ie_len" is set then "abyWPAIE[0]" is
initialized. To make that work, I changed the test here to say that if
"wpa_ie_len" is set then "wpa_ie" has to be a valid pointer or we return
-EINVAL.
Oddly, we only use the first element of the abyWPAIE[] array. So I
suspect there may be some other issues in this function.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This reverts commit 96d592ed59.
The netfilter hook seems to be misused and may leak skbs in situations
when NF_HOOK returns NF_STOLEN. It may not filter everything as
expected. Also the ethernet bridge tables are not yet capable to
understand batman-adv packet correctly.
It was only added for testing purposes and can be removed again.
Reported-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Commit d87d9b7d1 ("tty: serial - fix tty referencing in set_ldisc") changed
set_ldisc to take ldisc number as parameter. This patch fixes AMBA PL010 driver
according the new prototype.
Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The TIOCGICOUNT device ioctl in both mos7720.c and mos7840.c allows
unprivileged users to read uninitialized stack memory, because the
"reserved" member of the serial_icounter_struct struct declared on the
stack is not altered or zeroed before being copied back to the user.
This patch takes care of it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Commit 461c317705eca5cac09a360f488715927fd0a927(into 2.6.36-v3)
is put forward to power down phy if no usb cable is connected,
but does introduce the two issues below:
1), phy is not into work state if usb cable is connected
with PC during poweron, so musb device mode is not usable
in such case, follows the reasons:
-twl4030_phy_resume is not called, so
regulators are not enabled
i2c access are not enabled
usb mode not configurated
2), The kernel warings[1] of regulators 'unbalanced disables'
is caused if poweron without usb cable connected
with PC or b-device.
This patch fixes the two issues above:
-power down phy only if no usb cable is connected with PC
and b-device
-do phy initialization(via __twl4030_phy_resume) if usb cable
is connected with PC(vbus event) or another b-device(ID event) in
twl4030_usb_probe.
This patch also doesn't put VUSB3V1 LDO into active mode in
twl4030_usb_ldo_init until VBUS/ID change detected, so we can
save more power consumption than before.
This patch is verified OK on Beagle board either connected with
usb cable or not when poweron.
[1]. warnings of 'unbalanced disables' of regulators.
[root@OMAP3EVM /]# dmesg
------------[ cut here ]------------
WARNING: at drivers/regulator/core.c:1357 _regulator_disable+0x38/0x128()
unbalanced disables for VUSB1V8
Modules linked in:
Backtrace:
[<c0030c48>] (dump_backtrace+0x0/0x110) from [<c034f5a8>] (dump_stack+0x18/0x1c)
r7:c78179d8 r6:c01ed6b8 r5:c0410822 r4:0000054d
[<c034f590>] (dump_stack+0x0/0x1c) from [<c0057da8>] (warn_slowpath_common+0x54/0x6c)
[<c0057d54>] (warn_slowpath_common+0x0/0x6c) from [<c0057e64>] (warn_slowpath_fmt+0x38/0x40)
r9:00000000 r8:00000000 r7:c78e6608 r6:00000000 r5:fffffffb
r4:c78e6c00
[<c0057e2c>] (warn_slowpath_fmt+0x0/0x40) from [<c01ed6b8>] (_regulator_disable+0x38/0x128)
r3:c0410e53 r2:c0410ad5
[<c01ed680>] (_regulator_disable+0x0/0x128) from [<c01ed87c>] (regulator_disable+0x24/0x38)
r7:c78e6608 r6:00000000 r5:c78e6c40 r4:c78e6c00
[<c01ed858>] (regulator_disable+0x0/0x38) from [<c02382dc>] (twl4030_phy_power+0x15c/0x17c)
r5:c78595c0 r4:00000000
[<c0238180>] (twl4030_phy_power+0x0/0x17c) from [<c023831c>] (twl4030_phy_suspend+0x20/0x2c)
r6:00000000 r5:c78595c0 r4:c78595c0
[<c02382fc>] (twl4030_phy_suspend+0x0/0x2c) from [<c0238638>] (twl4030_usb_irq+0x11c/0x16c)
r5:c78595c0 r4:00000040
[<c023851c>] (twl4030_usb_irq+0x0/0x16c) from [<c034ec18>] (twl4030_usb_probe+0x2c4/0x32c)
r6:00000000 r5:00000000 r4:c78595c0
[<c034e954>] (twl4030_usb_probe+0x0/0x32c) from [<c02152a0>] (platform_drv_probe+0x20/0x24)
r7:00000000 r6:c047d49c r5:c78e6608 r4:c047d49c
[<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190)
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48)
r7:00000000 r6:c78e6608 r5:c78e6608 r4:c047d49c
[<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90)
r5:c0214390 r4:00000000
[<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94)
r6:c78e663c r5:c78e6608 r4:c78e6608
[<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48)
r7:00000000 r6:00000002 r5:c78e6608 r4:c78e6600
[<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4)
[<c0211b08>] (device_add+0x0/0x4b4) from [<c021597c>] (platform_device_add+0x110/0x16c)
[<c021586c>] (platform_device_add+0x0/0x16c) from [<c0220cb0>] (add_numbered_child+0xd8/0x118)
r7:00000000 r6:c045f15c r5:c78e6600 r4:00000000
[<c0220bd8>] (add_numbered_child+0x0/0x118) from [<c001c618>] (twl_probe+0x3a4/0x72c)
[<c001c274>] (twl_probe+0x0/0x72c) from [<c02601ac>] (i2c_device_probe+0x7c/0xa4)
[<c0260130>] (i2c_device_probe+0x0/0xa4) from [<c0214244>] (driver_probe_device+0xd0/0x190)
r5:c7856e20 r4:c047c860
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48)
r7:c7856e04 r6:c7856e20 r5:c7856e20 r4:c047c860
[<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90)
r5:c0214390 r4:00000000
[<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94)
r6:c7856e54 r5:c7856e20 r4:c7856e20
[<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48)
r7:c7856e04 r6:c78fd048 r5:c7856e20 r4:c7856e20
[<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4)
[<c0211b08>] (device_add+0x0/0x4b4) from [<c0211fd8>] (device_register+0x1c/0x20)
[<c0211fbc>] (device_register+0x0/0x20) from [<c0260aa8>] (i2c_new_device+0xec/0x150)
r5:c7856e00 r4:c7856e20
[<c02609bc>] (i2c_new_device+0x0/0x150) from [<c0260dc0>] (i2c_register_adapter+0xa0/0x1c4)
r7:00000000 r6:c78fd078 r5:c78fd048 r4:c781d5c0
[<c0260d20>] (i2c_register_adapter+0x0/0x1c4) from [<c0260f80>] (i2c_add_numbered_adapter+0x9c/0xb4)
r7:00000a28 r6:c04600a8 r5:c78fd048 r4:00000000
[<c0260ee4>] (i2c_add_numbered_adapter+0x0/0xb4) from [<c034efa4>] (omap_i2c_probe+0x324/0x3e8)
r5:00000000 r4:c78fd000
[<c034ec80>] (omap_i2c_probe+0x0/0x3e8) from [<c02152a0>] (platform_drv_probe+0x20/0x24)
[<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190)
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c021436c>] (__driver_attach+0x68/0x8c)
r7:c78b2140 r6:c047e214 r5:c04600e4 r4:c04600b0
[<c0214304>] (__driver_attach+0x0/0x8c) from [<c021399c>] (bus_for_each_dev+0x50/0x84)
r7:c78b2140 r6:c047e214 r5:c0214304 r4:00000000
[<c021394c>] (bus_for_each_dev+0x0/0x84) from [<c0214068>] (driver_attach+0x20/0x28)
r6:c047e214 r5:c047e214 r4:c00270d0
[<c0214048>] (driver_attach+0x0/0x28) from [<c0213274>] (bus_add_driver+0xa8/0x228)
[<c02131cc>] (bus_add_driver+0x0/0x228) from [<c02146a4>] (driver_register+0xb0/0x13c)
[<c02145f4>] (driver_register+0x0/0x13c) from [<c0215744>] (platform_driver_register+0x4c/0x60)
r9:00000000 r8:c001f688 r7:00000013 r6:c005b6fc r5:c00083dc
r4:c00270d0
[<c02156f8>] (platform_driver_register+0x0/0x60) from [<c001f69c>] (omap_i2c_init_driver+0x14/0x1c)
[<c001f688>] (omap_i2c_init_driver+0x0/0x1c) from [<c002c460>] (do_one_initcall+0xd0/0x1a4)
[<c002c390>] (do_one_initcall+0x0/0x1a4) from [<c0008478>] (kernel_init+0x9c/0x154)
[<c00083dc>] (kernel_init+0x0/0x154) from [<c005b6fc>] (do_exit+0x0/0x688)
r5:c00083dc r4:00000000
---[ end trace 1b75b31a2719ed1d ]---
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Felipe Balbi <me@felipebalbi.com>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We have to do so due to HW limitation.
Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
seq_files use the private_data field of a file struct for storing a seq_file structure,
data should be stored in seq_file's own private field (e.g. file->private_data->private)
Otherwise seq_release() will free the private data when the file is closed.
Signed-off-by: Mathias Nyman <mathias.nyman@nokia.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
During heavy aperture thrashing we may be forced to wait upon several active
objects during eviction. The active list may be the last reference to
these objects and so the action of waiting upon one of them may cause
another to be freed (and itself unbound). To prevent the object
disappearing underneath us, we need to acquire and hold a reference
whilst unbinding.
This should fix the reported page refcount OOPS:
kernel BUG at drivers/gpu/drm/i915/i915_gem.c:1444!
...
RIP: 0010:[<ffffffffa0093026>] [<ffffffffa0093026>] i915_gem_object_put_pages+0x25/0xf5 [i915]
Call Trace:
[<ffffffffa009481d>] i915_gem_object_unbind+0xc5/0x1a7 [i915]
[<ffffffffa0098ab2>] i915_gem_evict_something+0x3bd/0x409 [i915]
[<ffffffffa0027923>] ? drm_gem_object_lookup+0x27/0x57 [drm]
[<ffffffffa0093bc3>] i915_gem_object_bind_to_gtt+0x1d3/0x279 [i915]
[<ffffffffa0095b30>] i915_gem_object_pin+0xa3/0x146 [i915]
[<ffffffffa0027948>] ? drm_gem_object_lookup+0x4c/0x57 [drm]
[<ffffffffa00961bc>] i915_gem_do_execbuffer+0x50d/0xe32 [i915]
Reported-by: Shawn Starr <shawn.starr@rogers.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18902
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This patch replace all the lock functions with the irq safe variant.
The ns2_led_{set,get}_mode() functions must be safe in all context.
For example, the trigger timer call led_set_brightness() in a softirq
context.
Signed-off-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
When using simultaneously the two DMA channels on a same engine, some
transfers are never completed. For example, an endless lock can occur
while writing heavily on a RAID5 array (with async-tx offload support
enabled).
Note that this issue can also be reproduced by using the DMA test
client.
On a same engine, the interrupt cause register is shared between two
DMA channels. This patch make sure that the cause bit is only cleared
for the requested channel.
Signed-off-by: Simon Guinot <sguinot@lacie.com>
Tested-by: Luc Saillard <luc@saillard.org>
Acked-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
dca: disable dca on IOAT ver.3.0 multiple-IOH platforms
netpoll: Disable IRQ around RCU dereference in netpoll_rx
sctp: Do not reset the packet during sctp_packet_config().
net/llc: storing negative error codes in unsigned short
MAINTAINERS: move atlx discussions to netdev
drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory
drivers/net/eql.c: prevent reading uninitialized stack memory
drivers/net/usb/hso.c: prevent reading uninitialized memory
xfrm: dont assume rcu_read_lock in xfrm_output_one()
r8169: Handle rxfifo errors on 8168 chips
3c59x: Remove atomic context inside vortex_{set|get}_wol
tcp: Prevent overzealous packetization by SWS logic.
net: RPS needs to depend upon USE_GENERIC_SMP_HELPERS
phylib: fix PAL state machine restart on resume
net: use rcu_barrier() in rollback_registered_many
bonding: correctly process non-linear skbs
ipv4: enable getsockopt() for IP_NODEFRAG
ipv4: force_igmp_version ignored when a IGMPv3 query received
ppp: potential NULL dereference in ppp_mp_explode()
net/llc: make opt unsigned in llc_ui_setsockopt()
...
If pcmcia_request_io() only fails partly -- for the second of two
requested resources -- preserve the configuration settings for the
first one.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
qlcnic driver allocates rx skbs and gives to hardware too bytes of extra
storage, allowing for corruption of kernel data.
NET_IP_ALIGN being 0 on some platforms (including x86), drivers should
not assume it's 2.
rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
...
skb = dev_alloc_skb(rds_ring->skb_size);
skb_reserve(skb, 2);
pci_map_single(pdev, skb->data, rds_ring->dma_size, PCI_DMA_FROMDEVICE);
(and rds_ring->skb_size == rds_ring->dma_size) -> bug
Because of extra alignment (1500 + 32) -> four extra bytes are available
before the struct skb_shared_info, so corruption is not noticed.
Note: this driver could use netdev_alloc_skb_ip_align()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Direct Cache Access is not supported on IOAT ver.3.0 multiple-IOH platforms.
This patch blocks registering of dca providers when multiple IOH detected with IOAT ver.3.0.
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (lm95241) Replace rate sysfs attribute with update_interval
hwmon: (adm1031) Replace update_rate sysfs attribute with update_interval
hwmon: (w83627ehf) Use proper exit sequence
hwmon: (emc1403) Remove unnecessary hwmon_device_unregister
hwmon: (f75375s) Do not overwrite values read from registers
hwmon: (f75375s) Shift control mode to the correct bit position
hwmon: New subsystem maintainers
hwmon: (lis3lv02d) Prevent NULL pointer dereference
* 'for-linus' of git://neil.brown.name/md:
md: fix v1.x metadata update when a disk is missing.
md: call md_update_sb even for 'external' metadata arrays.
update_interval is the matching attribute defined in the hwmon sysfs ABI.
Use it.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The attribute reflects an interval, not a rate.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
According to the datasheet for Winbond W83627DHG the proper way to exit
the Extended Function Mode is to write 0xaa to the EFER(0x2e or 0x4e).
Signed-off-by: Jonas Jonsson <jonas@ludd.ltu.se>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
It is unnecessary and wrong to call hwmon_device_unregister in error
handling before hwmon_device_register is called.
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
All bits in the values read from registers to be used for the next
write were getting overwritten, avoid doing so to not mess with the
current configuration.
Signed-off-by: Guillem Jover <guillem@hadrons.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The spec notes that fan0 and fan1 control mode bits are located in bits
7-6 and 5-4 respectively, but the FAN_CTRL_MODE macro was making the
bits shift by 5 instead of by 4.
Signed-off-by: Guillem Jover <guillem@hadrons.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
If CONFIG_PM was selected and lis3lv02d_platform_data was NULL,
the kernel will be panic when halt command run.
Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Sigend-off-by: Jean Delvare <khali@linux-fr.org>
There is a second revision of B43 (a desktop gen4 part) floating around,
functionally equivalent to the original B43, so simply add the new
PCI-IDs.
Bugzilla: https://bugs.freedesktop.org/show_bugs.cgi?id=30221
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
With 5 places to update when adding handling for fence registers, it is
easy to overlook one or two. Correct that oversight, but fence
management should be improved before a new set of registers is added.
Bugzilla: https://bugs.freedesktop.org/show_bug?id=30199
Original patch by: Yuanhan Liu <yuanhan.liu@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
These are not fatal errors, so do not alarm the user by filling the
logs with *** ERROR ***. Especially as we know that g4x CRT detection
is a little sticky.
On the one hand the errors are valid since they are warning us of a
stall -- we poll the register whilst holding the mode lock so not even
the mouse will update. On the other hand, those stalls were already present
yet nobody complained.
Reported-by: Andi Kleen <andi@firstfloor.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=18332
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Fixed formatting (tabs and line breaks).
The CHELSIO_GET_QSET_NUM device ioctl allows unprivileged users to read
4 bytes of uninitialized stack memory, because the "addr" member of the
ch_reg struct declared on the stack in cxgb_extension_ioctl() is not
altered or zeroed before being copied back to the user. This patch
takes care of it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixed formatting (tabs and line breaks).
The EQL_GETMASTRCFG device ioctl allows unprivileged users to read 16
bytes of uninitialized stack memory, because the "master_name" member of
the master_config_t struct declared on the stack in eql_g_master_cfg()
is not altered or zeroed before being copied back to the user. This
patch takes care of it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixed formatting (tabs and line breaks).
The TIOCGICOUNT device ioctl allows unprivileged users to read
uninitialized stack memory, because the "reserved" member of the
serial_icounter_struct struct declared on the stack in hso_get_count()
is not altered or zeroed before being copied back to the user. This
patch takes care of it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If an array with 1.x metadata is assembled with the last disk missing,
md doesn't properly record the fact that the disk was missing.
This is unlikely to cause a real problem as the event count will be
different to the count on the missing disk so it won't be included in
the array. However it could still cause confusion.
So make sure we clear all the relevant slots, not just the early ones.
Signed-off-by: NeilBrown <neilb@suse.de>
Now that we depend on md_update_sb to clear variable bits in
mddev->flags (rather than trying not to set them) it is important to
always call md_update_sb when appropriate.
md_check_recovery has this job but explicitly avoids it for ->external
metadata arrays. This is not longer appropraite, or needed.
However we do want to avoid taking the mddev lock if only
MD_CHANGE_PENDING is set as that is not cleared by md_update_sb for
external-metadata arrays.
Reported-by: "Kwolek, Adam" <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
drivers/firewire/nosy* is a stand-alone driver that does not depend on
CONFIG_FIREWIRE. Hence let make descend into drivers/firewire/ also
if that option is off.
The stand-alone driver drivers/ieee1394/init_ohci1394_dma* will soon be
moved into drivers/firewire/ too and will require the same makefile fix.
Side effect:
As mentioned in https://bugzilla.novell.com/show_bug.cgi?id=586172#c24
this influences the order in which either firewire-ohci or ohci1394 is
going to be bound to an OHCI-1394 controller in case of a modular build
of both drivers if no modprobe blacklist entries are configured.
However, a user of such a setup cannot expect deterministic behavior
anyway. The Kconfig help and the migration guide at
ieee1394.wiki.kernel.org recommend blacklist entries when a dual
IEEE 1394 stack build is being used. (The coexistence period of the two
stacks is planned to end soon.)
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
It fixes an issue when sending-only or receiving-only more than
PAGE_SIZE bytes.
Signed-off-by: christophe leroy <christophe.leroy@c-s.fr>
Acked-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: Enable NXP LPC32XX support in Kconfig (resend)
watchdog: ts72xx_wdt: disable watchdog at probe
watchdog: sb_wdog: release irq and reboot notifier in error path and module_exit()
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
regulator: wm8350-regulator - fix the logic of checking REGULATOR_MODE_STANDBY mode
regulator: wm831x-ldo - fix the logic to set REGULATOR_MODE_IDLE and REGULATOR_MODE_STANDBY modes
regulator: ab8500 - fix off-by-one value range checking for selector
regulator: 88pm8607 - fix value range checking for accessing info->vol_table
regulator: isl6271a-regulator - fix regulator_desc parameter for regulator_register()
regulator: ad5398 - fix a memory leak
regulator: Update e-mail address for Liam Girdwood
regulator: set max8998->dev to &pdev->dev.
regulator: tps6586x-regulator - fix bit_mask parameter for tps6586x_set_bits()
regulator: tps6586x-regulator - fix value range checking for val
regulator: max8998 - set max8998->num_regulators
regulator: max8998 - fix memory allocation size for max8998->rdev
regulator: tps6507x - remove incorrect comments
regulator: max1586 - improve the logic of choosing selector
regulator: ab8500 - fix the logic to remove already registered regulators in error path
regulator: ab3100 - fix the logic to remove already registered regulators in error path
regulator/ab8500: move dereference below the check for NULL
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: only warn on mipmap size checks in r600 cs checker (v2)
drm/radeon/kms: force legacy pll algo for RV620 LVDS
drm: fix race between driver loading and userspace open.
drm: Use a nondestructive mode for output detect when polling (v2)
drm/radeon/kms: fix the colorbuffer CS checker for r300-r500
drm/radeon/kms: increase lockup detection interval to 10 sec for r100-r500
drm/radeon/kms/evergreen: fix backend setup
drm: Use a nondestructive mode for output detect when polling
drm/radeon: add some missing copyright headers
drm: Only decouple the old_fb from the crtc is we call mode_set*
drm/radeon/kms: don't enable underscan with interlaced modes
drm/radeon/kms: add connector table for Mac x800
drm/radeon/kms: fix regression in RMX code (v2)
drm: Fix regression in disable polling e58f637
The Thinkpad X100e seems to have some odd behaviour when the display is
powered off - the onboard r8169 starts generating rxfifo overflow errors.
The root cause of this has not yet been identified and may well be a
hardware design bug on the platform, but r8169 should be more resiliant to
this. This patch enables the rxfifo interrupt on 8168 devices and removes
the MAC version check in the interrupt handler, and the machine no longer
crashes when under network load while the screen turns off.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The VIAFB_GET_INFO device ioctl allows unprivileged users to read 246
bytes of uninitialized stack memory, because the "reserved" member of
the viafb_ioctl_info struct declared on the stack is not altered or
zeroed before being copied back to the user. This patch takes care of
it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
The NXP LPC32XX processor use the same watchdog as the Philips
PNX4008 processor.
Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Since it may be already enabled by bootloader or some other utility. This patch
makes sure that the watchdog is disabled before any userspace daemon opens the
device. It is also required by the watchdog API.
Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
irq and reboot notifier are acquired in module_init() but never released.
They should be released correctly, otherwise reloading the module or error
during module_init() will cause a problem.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andrew Sharp <andy.sharp@lsi.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Some pcnet_cs compatible cards require an exact 16-lines match
of the ioport areas specified in CIS, but set the "iolines"
value in the CIS incorrectly. We can easily work around this
issue -- same as we do in serial_cs -- by first trying setting
iolines to the CIS-specified value, and then trying a 16-line
match.
Reported-and-tested-by: Wolfram Sang <w.sang@pengutronix.de>
Hardware-supplied-by: Jochen Frieling <j.frieling@pengutronix.de>
CC: netdev@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
As the iomem / ioport setup differs per device, it is much better
to print out the device instead of the socket.
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
We shouldn't overwrite pre-set values, and we should also
set the port address to the beginning, and not the end of
the 8-port range.
CC: linux-serial@vger.kernel.org
Reported-by: Komuro <komurojun-mbn@nifty.com>
Hardware-supplied-by: Jochen Frieling <j.frieling@pengutronix.de>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
The texture base address registers are in units of 256 bytes.
The original CS checker treated these offsets as bytes, so the
original check was wrong. I fixed the units in a patch during
the 2.6.36 cycle, but this ended up breaking some existing
userspace (probably due to a bug in either userspace texture allocation
or the drm texture mipmap checker). So for now, until we come
up with a better fix, just warn if the mipmap size it too large.
This will keep existing userspace working and it should be just
as safe as before when we were checking the wrong units. These
are GPU MC addresses, so if they fall outside of the VRAM or
GART apertures, they end up at the GPU default page, so this should
be safe from a security perspective.
v2: Just disable the warning. It just spams the log and there's
nothing the user can do about it.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Jerome Glisse <glisse@freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
* git://git.infradead.org/mtd-2.6:
mtd: pxa3xx: fix build error when CONFIG_MTD_PARTITIONS is not defined
mtd: mxc_nand: configure pages per block for v2 controller
mtd: OneNAND: Fix loop hang when DMA error at Samsung SoCs
mtd: OneNAND: Fix 2KiB pagesize handling at Samsung SoCs
mtd: Blackfin NFC: fix invalid free in remove()
mtd: Blackfin NFC: fix build error after nand_scan_ident() change
mxc_nand: Do not do byte accesses to the NFC buffer.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: fix hiddev's use of usb_find_interface
HID: fixup blacklist entry for Asus T91MT
HID: add device ID for new Asus Multitouch Controller
HID: add no-get quirk for eGalax touch controller
HID: Add quirk for eGalax touch controler.
HID: add support for another BTC Emprex remote control
HID: Set Report ID properly for Output reports on the Control endpoint.
HID: Kanvus Note A5 tablet needs HID_QUIRK_MULTI_INPUT
HID: Add support for chicony multitouch screens.
On resume, before starting the PAL state machine, check if the
adjust_link() method is well supplied. If not, this would lead to a
NULL pointer dereference in the phy_state_machine() function.
This scenario can happen if the Ethernet driver call manually the PHY
functions instead of using the PAL state machine. The mv643xx_eth driver
is a such example.
Signed-off-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It was recently brought to my attention that 802.3ad mode bonds would no
longer form when using some network hardware after a driver update.
After snooping around I realized that the particular hardware was using
page-based skbs and found that skb->data did not contain a valid LACPDU
as it was not stored there. That explained the inability to form an
802.3ad-based bond. For balance-alb mode bonds this was also an issue
as ARPs would not be properly processed.
This patch fixes the issue in my tests and should be applied to 2.6.36
and as far back as anyone cares to add it to stable.
Thanks to Alexander Duyck <alexander.h.duyck@intel.com> and Jesse
Brandeburg <jesse.brandeburg@intel.com> for the suggestions on this one.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: stable@kerne.org
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In mergeable buffer case, we use headcount, log_num
and seg as indexes in same-size arrays, and
we know that headcount <= seg and
log_num equals either 0 or seg.
Therefore, the right thing to do is range-check seg,
not headcount as we do now: these will be different
if guest chains s/g descriptors (this does not
happen now, but we can not trust the guest).
Long term, we should add BUG_ON checks to verify
two other indexes are what we think they should be.
Reported-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
There has been periodic evidence that LVDS, on at least some
panels, prefers the dividers selected by the legacy pll algo.
This patch forces the use of the legacy pll algo on RV620
LVDS panels. The old behavior (new pll algo) can be selected
by setting the new_pll module parameter to 1.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=30029
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Not 100% sure this is due to BKL removal, its most likely a combination
of that + userspace timing changes in udev/plymouth. The drm adds the sysfs
device before the driver has completed internal loading, this causes udev
to make the node and plymouth to open it before we've completed loading.
The proper solution is to delay the sysfs manipulation until later in loading
however this causes knock on issues with sysfs connector nodes, so we can use
the global mutex to serialise loading and userspace opens.
Reported-by: Toni Spets (hifi on #radeon)
Signed-off-by: Dave Airlie <airlied@redhat.com>
v2: Julien Cristau pointed out that @nondestructive results in
double-negatives and confusion when trying to interpret the parameter,
so use @force instead. Much easier to type as well. ;-)
And fix the miscompilation of vmgfx reported by Sedat Dilek.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
My macbook infrared remote control was broken by commit
bd25f4dd69 ("HID: hiddev: use
usb_find_interface, get rid of BKL").
This device appears in dmesg as:
apple 0003:05AC:8242.0001: hiddev0,hidraw0: USB HID v1.11 Device
[Apple Computer, Inc. IR Receiver] on usb-0000:00:1d.2-1/input0
It stopped working as lircd was getting ENODEV when opening /dev/usb/hiddev0.
AFAICS hiddev_driver is a dummy driver so usb_find_interface(&hiddev_driver)
does not find anything.
The device is associated with the usbhid driver, so let's do
usb_find_interface(&hid_driver) instead.
$ ls -l /sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/usb/hiddev0/device/driver
lrwxrwxrwx 1 root root 0 2010-09-12 16:28 /sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/usb/hiddev0/device/driver -> ../../../../../../bus/usb/drivers/usbhid
Signed-off-by: Guillaume Chazarain <guichaz@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
We must ensure that ide_proc_port_register_devices() occurs on an
interface before ide_proc_register_driver() executes for that
interfaces drives.
Therefore defer the registry of the driver device objects backed by
ide_bus_type until after ide_proc_port_register_devices() has run
and thus all of the drive->proc procfs directory pointers have been
setup.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
spi/pl022: move probe call to subsys_initcall()
powerpc/5200: mpc52xx_uart.c: Add of_node_put to avoid memory leak
spi/pl022: fix APB pclk power regression on U300
spi/spi_s3c64xx: Warn if PIO transfers time out
spi/s3c64xx: Fix incorrect reuse of 'val' local variable.
spi/s3c64xx: Fix compilation warning
spi/dw_spi: clean the cs_control code
spi/dw_spi: Allow interrupt sharing
spi/spi_s3c64xx: Increase dead reckoning time in wait_for_xfer()
spi/spi_s3c64xx: Move to subsys_initcall()
spi: free children in spi_unregister_master, not siblings
gpiolib: Add 'struct gpio_chip' forward declaration for !GPIOLIB case
of: Fix missing includes - ll_temac
spi/spi_s3c64xx: Staticise non-exported functions
spi/spi_s3c64xx: Make probe more robust against missing board config
Smatch complains because we check whether "pch->chan" is NULL and then
dereference it unconditionally on the next line. Partly the reason this
bug was introduced is because code was too complicated. I've simplified
it a little.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit fixes bogus CS rejection if it contains a sequence
of the following operations:
- Set the color buffer 0. track->cb[i].robj becomes non-NULL.
- Render.
- Set a larger zbuffer than the previously-set color buffer.
- Set a larger scissor area as well.
- Set the color channel mask to 0 to do depth-only rendering.
- Render. --> rejected, because track->cb[i].robj remained non-NULL,
therefore the conditional checking for the color channel mask and
friends is not performed, and the larger scissor area causes
the rejection.
This fixes bugs:
- https://bugs.freedesktop.org/show_bug.cgi?id=29762
- https://bugs.freedesktop.org/show_bug.cgi?id=28869
And maybe some others which seem to look the same.
If possible, this commit should go to stable as well.
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
One subtest of mesa/demos/gltestperf takes 9 seconds to complete,
so to prevent an unnecessary gpu reset followed by a hardlock, I am
increasing the interval to 10 seconds after which a GPU is considered
in a locked-up state. This is on RV530. However, with a little slower GPU,
we would surpass the interval easily, so this is not a good fix
for gltestperf.
Nevertheless, this commit also fixes hardlocks in the applications which
render at speed of less than 1 frame per second, where the whole frame
consists of only one command stream. The game Tiny & Big is an example.
This bar is now lowered to 0.1 fps.
Now the question comes down to whether we should (often unsuccessfully)
reset the GPU at all? Once we have stable enough drivers, we won't have to.
Has the time come already?
If possible, this commit should go to stable as well.
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This patch fixes rendering errors on some evergreen boards.
Hardcoding the backend map is not an optimal solution, but
a better fix is being worked on.
Similar to the fix for rv740
(6271901d82).
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=29986
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Destructive load-detection is very expensive and due to failings
elsewhere can trigger system wide stalls of up to 600ms. A simple
first step to correcting this is not to invoke such an expensive
and destructive load-detection operation automatically.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29536
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16265
Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Marek Szyprowski