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Not registering a platform_driver would make us access garbage
when the platform callbacks under driver_register() kicks in.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Tested-By: Martin Pitt <martin.pitt@ubuntu.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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Pull NVMe driver update from Matthew Wilcox:
"Lots of exciting new features in the NVM Express driver this time,
including support for emulating SCSI commands, discard support and the
ability to submit per-sector metadata with I/Os.
It's still mostly bugfixes though!"
* git://git.infradead.org/users/willy/linux-nvme: (27 commits)
NVMe: Use user defined admin ioctl timeout
NVMe: Simplify Firmware Activate code slightly
NVMe: Only clear the enable bit when disabling controller
NVMe: Wait for device to acknowledge shutdown
NVMe: Schedule timeout for sync commands
NVMe: Meta-data support in NVME_IOCTL_SUBMIT_IO
NVMe: Device specific stripe size handling
NVMe: Split non-mergeable bio requests
NVMe: Remove dead code in nvme_dev_add
NVMe: Check for NULL memory in nvme_dev_add
NVMe: Fix error clean-up on nvme_alloc_queue
NVMe: Free admin queue on request_irq error
NVMe: Add scsi unmap to SG_IO
NVMe: queue usage fixes in nvme-scsi
NVMe: Set TASK_INTERRUPTIBLE before processing queues
NVMe: Add a character device for each nvme device
NVMe: Fix endian-related problems in user I/O submission path
NVMe: Fix I/O cancellation status on big-endian machines
NVMe: Fix sparse warnings in scsi emulation
NVMe: Don't fail initialisation unnecessarily
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPICA fixes from Rafael Wysocki:
- _INI regression fix from Tomasz Nowicki.
- Fix for a possible memory leak in _OSI support routine from Jung-uk
Kim.
- Fix for a possible buffer overflow during field unit read operation
from Bob Moore.
* tag 'acpi-fixes-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: ACPICA: Fix for _INI regression
ACPICA: _OSI support: Fix possible memory leak
ACPICA: Fix possible buffer overflow during a field unit read operation
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes and straggler patches from Olof Johansson:
"A collection of fixes for fall out from 3.10 merge window, some build
fixes and warning cleanups and a small handful of patches that were
small and contained and made sense to still include in 3.10 (some of
these have also been in -next since the merge window opened).
Largest continous series is for OMAP, but there's a handful for other
platforms.
For i.MX, one of the patches are framebuffer fixups due to fallout
during the merge window, and the other removes some stale and broken
code."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (34 commits)
ARM: exynos: dts: Fixed vbus-gpios
ARM: EXYNOS5: Fix kernel dump in AFTR idle mode
ARM: ux500: Rid ignored return value of regulator_enable() compiler warning
ARM: ux500: read the correct soc_id number
ARM: exynos: dts: cros5250: add cyapa trackpad
video: mxsfb: Adapt to new videomode API
ARM: imx: Select GENERIC_ALLOCATOR
ARM: imx: compile fix for hotplug.c
ARM: dts: don't assume boards are using twl4030 for omap3
ARM: OMAP2+: Remove bogus IS_ERR_OR_NULL checking from id.c
ARM: dts: Configure and fix the McSPI pins for 4430sdp
ARM: dts: AM33XX: Add GPMC node
ARM: dts: OMAP4460: Fix CPU OPP voltages
ARM: dts: OMAP36xx: Fix CPU OPP voltages
ARM: OMAP4+: omap2plus_defconfig: Enable audio via TWL6040 as module
ARM: OMAP2: AM33XX: id: Add support for new AM335x PG2.1 Si
omap: mux: add AM/DM37x gpios
ARM: OMAP1: DMA: fix error handling in omap1_system_dma_init()
ARM: OMAP2+: omap_device: use late_initcall_sync
ARM: OMAP: RX-51: change probe order of touchscreen and panel SPI devices
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tile update from Chris Metcalf:
"The interesting bug fix is support for the upcoming "4.2" release of
the Tilera hypervisor, which by default launches Linux at privilege
level 2 instead of 1. The fix lets new and old hypervisors and
Linuxes interoperate more smoothly, so I've tagged it for
stable@kernel.org so that older Linuxes will be able to boot under the
newer hypervisor."
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
usb: tilegx: fix memleak when create hcd fail
arch/tile: remove inline marking of EXPORT_SYMBOL functions
rtc: rtc-tile: add missing platform_device_unregister() when module exit
tile: support new Tilera hypervisor
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commit 6cd2c7db4 (videomode: videomode_from_timing work) changed the name of
the function from videomode_from_timing() to videomode_from_timings().
commit 32ed6ef1 (videomode: create enum for videomode's display flags) changed
the 'data_flags' field in videomode structure to 'flags'
Adapt to these changes in order to fix the following errors:
drivers/video/mxsfb.c:761:3: error: too many arguments to function 'videomode_from_timing'
drivers/video/mxsfb.c:761:7: error: void value not ignored as it ought to be
drivers/video/mxsfb.c:768:9: error: 'struct videomode' has no member named 'data_flags'
drivers/video/mxsfb.c:770:9: error: 'struct videomode' has no member named 'data_flags'
Also, select VIDEOMODE_HELPER instead of OF_VIDEOMODE, as this one is
deprecated.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
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When usb_create_hcd fail, we should call gxio_usb_host_destroy
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> [extended to EHCI]
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Pull networking update from David Miller:
1) Propagate return error values properly in irda, spider_net, sfc, and
bfin_mac. From Wei Yongjun.
2) Fix fec driver OOPS on rapid link up/down, from Frank Li.
3) FIX VF resource allocation and chip message payload length errors in
be2net driver, from Sathya Perla.
4) Fix inner protocol inspection during GSO from Pravin B Shelar.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
if_cablemodem.h: Add parenthesis around ioctl macros
gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol()
net: fec: fix kernel oops when plug/unplug cable many times
bfin_mac: fix error return code in bfin_mac_probe()
sfc: fix return value check in efx_ptp_probe_channel()
net/spider_net: fix error return code in spider_net_open()
net/irda: fix error return code in bfin_sir_open()
net: of_mdio: fix behavior on missing phy device
sierra_net: keep status interrupt URB active
usbnet: allow status interrupt URB to always be active
qmi_wwan/cdc_ether: add device IDs for Dell 5804 (Novatel E371) WWAN card
be2net: disable TX in be_close()
be2net: fix EQ from getting full while cleaning RX CQ
be2net: fix payload_len value for GET_MAC_LIST cmd req
be2net: provision VF resources before enabling SR-IOV
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"MSI:
PCI: Set ->mask_pos correctly
Hotplug:
PCI: Delay final fixups until resources are assigned
Moorestown:
x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
* tag 'pci-v3.10-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Delay final fixups until resources are assigned
x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0
PCI: Set ->mask_pos correctly
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Pull MTD update from David Woodhouse:
- Lots of cleanups from Artem, including deletion of some obsolete
drivers
- Support partitions larger than 4GiB in device tree
- Support for new SPI chips
* tag 'for-linus-20130509' of git://git.infradead.org/linux-mtd: (83 commits)
mtd: omap2: Use module_platform_driver()
mtd: bf5xx_nand: Use module_platform_driver()
mtd: denali_dt: Remove redundant use of of_match_ptr
mtd: denali_dt: Change return value to fix smatch warning
mtd: denali_dt: Use module_platform_driver()
mtd: denali_dt: Fix incorrect error check
mtd: nand: subpage write support for hardware based ECC schemes
mtd: omap2: use msecs_to_jiffies()
mtd: nand_ids: use size macros
mtd: nand_ids: improve LEGACY_ID_NAND macro a bit
mtd: add 4 Toshiba nand chips for the full-id case
mtd: add the support to parse out the full-id nand type
mtd: add new fields to nand_flash_dev{}
mtd: sh_flctl: Use of_match_ptr() macro
mtd: gpio: Use of_match_ptr() macro
mtd: gpio: Use devm_kzalloc()
mtd: davinci_nand: Use of_match_ptr()
mtd: dataflash: Use of_match_ptr() macro
mtd: remove h720x flash support
mtd: onenand: remove OneNAND simulator
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewure updates from Stefan Richter:
- fix controller removal when controller is in suspended state
- fix video reception on VIA VT6306 with gstreamer, MythTV, and maybe dv4l
- fix a startup issue with Agere/LSI FW643-e2
- error logging improvements and other small updates
* tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: ohci: dump_stack() for PHY regs read/write failures
firewire: ohci: Improve bus reset error messages
firewire: ohci: Alias dev_* log functions
firewire: ohci: Fix 'failed to read phy reg' on FW643 rev8
firewire: ohci: fix VIA VT6306 video reception
firewire: ohci: Check LPS before register access on pci removal
firewire: ohci: Fix double free_irq()
firewire: remove unnecessary alloc/OOM messages
firewire: sbp2: replace BUG_ON by WARN_ON
firewire: core: remove an always false test
firewire: Remove two unneeded checks for macros
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull two small EDAC fixes from Borislav Petkov.
* tag 'edac_fixes_for_3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC: Don't give write permission to read-only files
EDAC, mc_sysfs.c: Fix string array pointer types
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Pull watchdog update from Wim Van Sebroeck:
"Fix a kdump issue in hpwdt and a possible NULL dereference"
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: Fix race condition in registration code
watchdog: Convert to devm_ioremap_resource()
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Pull removal of GENERIC_GPIO from Grant Likely:
"GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any
valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
is possible to do so which has been causing confusion and breakage.
This branch does the work to completely eliminate GENERIC_GPIO."
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
gpio: update gpio Chinese documentation
Remove GENERIC_GPIO config option
Convert selectors of GENERIC_GPIO to GPIOLIB
blackfin: force use of gpiolib
m68k: coldfire: use gpiolib
mips: pnx833x: remove requirement for GENERIC_GPIO
openrisc: default GENERIC_GPIO to false
avr32: default GENERIC_GPIO to false
xtensa: remove explicit selection of GENERIC_GPIO
sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
powerpc: remove redundant GENERIC_GPIO selection
unicore32: default GENERIC_GPIO to false
unicore32: remove unneeded select GENERIC_GPIO
arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
arm: remove redundant GENERIC_GPIO selection
mips: alchemy: require gpiolib
mips: txx9: change GENERIC_GPIO to GPIOLIB
mips: loongson: use GPIO driver on CONFIG_GPIOLIB
mips: remove redundant GENERIC_GPIO select
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Pull slave-dmaengine updates from Vinod Koul:
"This time we have dmatest improvements from Andy along with dw_dmac
fixes. He has also done support for acpi for dmanegine.
Also we have bunch of fixes going in DT support for dmanegine for
various folks. Then Haswell and other ioat changes from Dave and
SUDMAC support from Shimoda."
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits)
dma: tegra: implement suspend/resume callbacks
dma:of: Use a mutex to protect the of_dma_list
dma: of: Fix of_node reference leak
dmaengine: sirf: move driver init from module_init to subsys_initcall
sudmac: add support for SUDMAC
dma: sh: add Kconfig
at_hdmac: move to generic DMA binding
ioatdma: ioat3_alloc_sed can be static
ioatdma: Adding write back descriptor error status support for ioatdma 3.3
ioatdma: S1200 platforms ioatdma channel 2 and 3 falsely advertise RAID cap
ioatdma: Adding support for 16 src PQ ops and super extended descriptors
ioatdma: Removing hw bug workaround for CB3.x .2 and earlier
dw_dmac: add ACPI support
dmaengine: call acpi_dma_request_slave_channel as well
dma: acpi-dma: introduce ACPI DMA helpers
dma: of: Remove unnecessary list_empty check
DMA: OF: Check properties value before running be32_to_cpup() on it
DMA: of: Constant names
ioatdma: skip silicon bug workaround for pq_align for cb3.3
ioatdma: Removing PQ val disable for cb3.3
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management update from Zhang Rui:
"The most important one is to build thermal core and governor and cpu
cooling code into one module. This fixes a regression that thermal
core does not work if it is built as module, since 3.7. I'll backport
them to stable kernel once those changes are in upstream.
The largest batch is the thermal kernel-doc & coding style
updates/cleanups from Eduardo.
Highlights:
- build all thermal framework code into one module to fix a
regression that thermal does not work if it is built as module.
- Marvell Armada 370/XP thermal sensor driver
- thermal core/cpu cooling kernel-doc & coding style updates and
cleanups.
- Add Eduardo Valentin as thermal sub-maintainer, both in mailing
list and patchwork. He will help me on arm thermal drivers."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (68 commits)
thermal: db8500_cpufreq_cooling: remove usage of IS_ERR_OR_NULL()
thermal: thermal_core: remove usage of IS_ERR_OR_NULL
thermal: cpu_cooling: improve line breaking
thermal: cpu_cooling: alignment improvements
thermal: cpu_cooling: remove checkpatch.pl warning
thermal: cpu_cooling: remove trailing blank line
thermal: cpu_cooling: align on open parenthesis
thermal: cpu_cooling: standardize comment style
thermal: cpu_cooling: standardize end of function
thermal: cpu_cooling: remove trailing white spaces
Thermal: update documentation for thermal_zone_device_register
thermal: update kernel-doc for thermal_zone_device_register
thermal: update kernel-doc for create_trip_attrs
thermal: update kernel-doc for thermal_cooling_device_register
thermal: update kernel-doc for thermal_zone_unbind_cooling_device
thermal: update kernel-doc for thermal_zone_bind_cooling_device
thermal: use EXPORT_SYMBOL_GPL
thermal: rename notify_thermal_framework to thermal_notify_framework
thermal: update driver license
thermal: use strlcpy instead of strcpy
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I get the following warning on boot:
------------[ cut here ]------------
WARNING: at drivers/base/core.c:575 device_create_file+0x9a/0xa0()
Hardware name: -[8737R2A]-
Write permission without 'store'
...
</snip>
Drilling down, this is related to dynamic channel ce_count attribute
files sporting a S_IWUSR mode without a ->store() function. Looking
around, it appears that they aren't supposed to have a ->store()
function. So remove the bogus write permission to get rid of the
warning.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: <stable@vger.kernel.org> # 3.[89]
[ shorten commit message ]
Signed-off-by: Borislav Petkov <bp@suse.de>
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A race condition exists when registering the first watchdog device.
Sequence of events:
- watchdog_register_device calls watchdog_dev_register
- watchdog_dev_register creates the watchdog misc device by calling
misc_register.
At that time, the matching character device (/dev/watchdog0) does not yet
exist, and old_wdd is not set either.
- Userspace gets an event and opens /dev/watchdog
- watchdog_open is called and sets wdd = old_wdd, which is still NULL,
and tries to dereference it. This causes the kernel to panic.
Seen with systemd trying to open /dev/watchdog immediately after
it was created.
Reported-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.
devm_ioremap_resource() provides its own error messages; so all explicit
error messages can be removed from the failure code paths.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull InfiniBand/RDMA changes from Roland Dreier:
- XRC transport fixes
- Fix DHCP on IPoIB
- mlx4 preparations for flow steering
- iSER fixes
- miscellaneous other fixes
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (23 commits)
IB/iser: Add support for iser CM REQ additional info
IB/iser: Return error to upper layers on EAGAIN registration failures
IB/iser: Move informational messages from error to info level
IB/iser: Add module version
mlx4_core: Expose a few helpers to fill DMFS HW strucutures
mlx4_core: Directly expose fields of DMFS HW rule control segment
mlx4_core: Change a few DMFS fields names to match firmare spec
mlx4: Match DMFS promiscuous field names to firmware spec
mlx4_core: Move DMFS HW structs to common header file
IB/mlx4: Set link type for RAW PACKET QPs in the QP context
IB/mlx4: Disable VLAN stripping for RAW PACKET QPs
mlx4_core: Reduce warning message for SRQ_LIMIT event to debug level
RDMA/iwcm: Don't touch cmid after dropping reference
IB/qib: Correct qib_verbs_register_sysfs() error handling
IB/ipath: Correct ipath_verbs_register_sysfs() error handling
RDMA/cxgb4: Fix SQ allocation when on-chip SQ is disabled
SRPT: Fix odd use of WARN_ON()
IPoIB: Fix ipoib_hard_header() return value
RDMA: Rename random32() to prandom_u32()
RDMA/cxgb3: Fix uninitialized variable
...
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A small bug in this code was causing the ALLMULTI filter to be set
when in fact we were just wanting to program a selective multicast list
to the hardware.
Fix that bug and remove a redundant if condition in the code that
follows.
This fixes wakeup behaviour when multicast WOL is enabled. Previously,
all multicast packets would wake up the system. Now, only those that the
host intended to receive trigger wakeups.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: <stable@vger.kernel.org>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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After unregister_netdevice() call the request is queued and
reg_state is changed to NETREG_UNREGISTERING.
As we check for NETREG_UNREGISTERED state, free_netdev() never
gets executed causing memory leak.
Initialize "dev->destructor" to free_netdev() to free device
data after unregistration.
Cc: <stable@vger.kernel.org>
Reported-by: Daniel Drake <dsd@laptop.org>
Tested-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When the XO-4 with 8787 wireless is woken up due to wake-on-WLAN
mwifiex is often flooded with "not allowed while suspended" messages
and the interface is unusable.
[ 202.171609] int: sdio_ireg = 0x1
[ 202.180700] info: mwifiex_process_hs_config: auto cancelling host
sleep since there is interrupt from the firmware
[ 202.201880] event: wakeup device...
[ 202.211452] event: hs_deactivated
[ 202.514638] info: --- Rx: Data packet ---
[ 202.514753] data: 4294957544 BSS(0-0): Data <= kernel
[ 202.514825] PREP_CMD: device in suspended state
[ 202.514839] data: dequeuing the packet ec7248c0 ec4869c0
[ 202.514886] mwifiex_write_data_sync: not allowed while suspended
[ 202.514886] host_to_card, write iomem (1) failed: -1
[ 202.514917] mwifiex_write_data_sync: not allowed while suspended
[ 202.514936] host_to_card, write iomem (2) failed: -1
[ 202.514949] mwifiex_write_data_sync: not allowed while suspended
[ 202.514965] host_to_card, write iomem (3) failed: -1
[ 202.514976] mwifiex_write_data_async failed: 0xFFFFFFFF
This can be readily reproduced when putting the XO-4 in a loop where
it goes to sleep due to inactivity, but then wakes up due to an
incoming ping. The error is hit within an hour or two.
This issue happens when an interrupt comes in early while host sleep
is still activated. Driver handles this case by auto cancelling host
sleep. However is_suspended flag is still set which prevents any cmd
or data from being sent to firmware. Fix it by clearing is_suspended
flag in this path.
Cc: <stable@vger.kernel.org>
Reported-by: Daniel Drake <dsd@laptop.org>
Tested-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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* Register Modification for xLNA board.
* TX gain table modification for zero calibration.
* AUX chain (LNA2) sensitivity enhancement
* Modify diversity bias default setting in INI.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When a reset or a channel-change happens, for managed mode,
the HW beacon timers have to be programmed after the TSF has
been synchronized. This is handled via the sync flags.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Jake reported that since commit 1672c0e31917f49d31d30d79067103432bc20cc7
"mac80211: start auth/assoc timeout on frame status", he is unable to
connect to his AP, which is configured to use passive channel.
After switch to passive channel 4965 firmware drops any TX packet until
it receives beacon. Before commit 1672c0e3 we waited on channel and
retransmit packet after 200ms, that makes we receive beacon on the
meantime and association process succeed. New mac80211 behaviour cause
that any ASSOC frame fail immediately on iwl4965 and we can not
associate.
This patch restore old mac80211 behaviour for iwl4965, by removing
IEEE80211_HW_REPORTS_TX_ACK_STATUS feature. This feature will be
added again to iwl4965 driver, when different, more complex
workaround for this firmware issue, will be added to the driver.
Cc: stable@vger.kernel.org # 3.9
Bisected-by: Jake Edge <jake@lwn.net>
Reported-and-tested-by: Jake Edge <jake@lwn.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Add handling of rx descriptor underflow. This fixes a fault that could
happen on slow machines, where data is received faster than the CPU can
handle. In such a case the device will use up all rx descriptors and
refuse to send any more data before confirming that it is ok. This
patch enables necessary interrupt to discover such a situation and will
handle them by dropping everything in the ring buffer.
Reviewed-by: Michael Buesch <m@bues.ch>
Signed-off-by: Thommy Jakobsson <thommyj@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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into for-next
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reproduce steps
1. flood ping from other machine
ping -f -s 41000 IP
2. run below script
while [ 1 ]; do ethtool -s eth0 autoneg off;
sleep 3;ethtool -s eth0 autoneg on; sleep 4; done;
You can see oops in one hour.
The reason is fec_restart clear BD but NAPI may use it.
The solution is disable NAPI and stop xmit when reset BD.
disable NAPI may sleep, so fec_restart can't be call in
atomic context.
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of error, the function ptp_clock_register() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix to return -ENOMEM in the irlap_open() error handling case instead
of 0(overwrite to 0 by bfin_sir_startup()), as done elsewhere in this
function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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of_mdiobus_register creates a phy_device even if get_phy_device failed
to create it previously. This causes indefinite polling on non-existent
PHYs. This fix makes of_mdio_register rely on get_phy_device to
properly create the device or fail otherwise.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver and firmware sync up through SYNC messages, and the
firmware's affirmative reply to these SYNC messages appears to be the
"Reset" indication received via the status interrupt endpoint. Thus the
driver needs the status interrupt endpoint always active so that the
Reset indication can be received even if the netdev is closed, which is
the case right after device insertion.
If the Reset indication is not received by the driver, it continues
sending SYNC messages to the firmware, which crashes about 10 seconds
later and the device stops responding.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some drivers (sierra_net) need the status interrupt URB
active even when the device is closed, because they receive
custom indications from firmware. Add functions to refcount
the status interrupt URB submit/kill operation so that
sub-drivers and the generic driver don't fight over whether
the status interrupt URB is active or not.
A sub-driver can call usbnet_status_start() at any time, but
the URB is only submitted the first time the function is
called. Likewise, when the sub-driver is done with the URB,
it calls usbnet_status_stop() but the URB is only killed when
all users have stopped it. The URB is still killed and
re-submitted for suspend/resume, as before, with the same
refcount it had at suspend.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A rebranded Novatel E371 for AT&T's LTE bands. qmi_wwan should drive this
device, while cdc_ether should ignore it. Even though the USB descriptors
are plain CDC-ETHER that USB interface is a QMI interface.
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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be_close() followed by be_clear() is called as a part of cleanup in the
EEH/AER flow. This patch stops TX in be_close() before cleaning/freeing
up the TX queues in be_clear(). This prevents be_xmit() from being called
while TX queues no longer exist.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While cleaning RX queues, the CQ DB may be rung several times (with rearm)
while waiting for the flush compl. Each CQ-notify with rearm can result in
an event. The EQ may get full resulting in a HW error.
Fix this by not re-arming the CQ while notifying a valid completion.
Also, there's no need to wait for 1ms after destroying RXQ, as the code in
be_rx_cq_clean() waits for the flush compl to arrive.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The buffer size for a FW cmd request must be big enough to fit the response,
else the cmd fails. For GET_MAC_LIST cmd, though the memory allocated for
the cmd is big enough to fit the response, the payload_len value in the
WRB hdr is being set to the request length only.
Fix this for GET_MAC_LIST cmd.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the PF driver calls pci_enable_sriov(), the VFs may be probed
inline before the call returns. So, the resources required for all VFs
must be provisioned by the PF driver *before* calling pci_enable_sriov();
else, VF probe will fail.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull block driver updates from Jens Axboe:
"It might look big in volume, but when categorized, not a lot of
drivers are touched. The pull request contains:
- mtip32xx fixes from Micron.
- A slew of drbd updates, this time in a nicer series.
- bcache, a flash/ssd caching framework from Kent.
- Fixes for cciss"
* 'for-3.10/drivers' of git://git.kernel.dk/linux-block: (66 commits)
bcache: Use bd_link_disk_holder()
bcache: Allocator cleanup/fixes
cciss: bug fix to prevent cciss from loading in kdump crash kernel
cciss: add cciss_allow_hpsa module parameter
drivers/block/mg_disk.c: add CONFIG_PM_SLEEP to suspend/resume functions
mtip32xx: Workaround for unaligned writes
bcache: Make sure blocksize isn't smaller than device blocksize
bcache: Fix merge_bvec_fn usage for when it modifies the bvm
bcache: Correctly check against BIO_MAX_PAGES
bcache: Hack around stuff that clones up to bi_max_vecs
bcache: Set ra_pages based on backing device's ra_pages
bcache: Take data offset from the bdev superblock.
mtip32xx: mtip32xx: Disable TRIM support
mtip32xx: fix a smatch warning
bcache: Disable broken btree fuzz tester
bcache: Fix a format string overflow
bcache: Fix a minor memory leak on device teardown
bcache: Documentation updates
bcache: Use WARN_ONCE() instead of __WARN()
bcache: Add missing #include <linux/prefetch.h>
...
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We have registered platform device when module init, and
need unregister it when module exit.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Pull block core updates from Jens Axboe:
- Major bit is Kents prep work for immutable bio vecs.
- Stable candidate fix for a scheduling-while-atomic in the queue
bypass operation.
- Fix for the hang on exceeded rq->datalen 32-bit unsigned when merging
discard bios.
- Tejuns changes to convert the writeback thread pool to the generic
workqueue mechanism.
- Runtime PM framework, SCSI patches exists on top of these in James'
tree.
- A few random fixes.
* 'for-3.10/core' of git://git.kernel.dk/linux-block: (40 commits)
relay: move remove_buf_file inside relay_close_buf
partitions/efi.c: replace useless kzalloc's by kmalloc's
fs/block_dev.c: fix iov_shorten() criteria in blkdev_aio_read()
block: fix max discard sectors limit
blkcg: fix "scheduling while atomic" in blk_queue_bypass_start
Documentation: cfq-iosched: update documentation help for cfq tunables
writeback: expose the bdi_wq workqueue
writeback: replace custom worker pool implementation with unbound workqueue
writeback: remove unused bdi_pending_list
aoe: Fix unitialized var usage
bio-integrity: Add explicit field for owner of bip_buf
block: Add an explicit bio flag for bios that own their bvec
block: Add bio_alloc_pages()
block: Convert some code to bio_for_each_segment_all()
block: Add bio_for_each_segment_all()
bounce: Refactor __blk_queue_bounce to not use bi_io_vec
raid1: use bio_copy_data()
pktcdvd: Use bio_reset() in disabled code to kill bi_idx usage
pktcdvd: use bio_copy_data()
block: Add bio_copy_data()
...
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Add definitions for the three Firmware Activate actions, and change the
SCSI translation code to construct the command into a temporary variable
instead of translating the endianness back-and-forth.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@linux.intel.com>
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Many of the bits in the Controller Configuration register may only be
modified when the Enable bit is clear. Clearing them at the same time
as the Enable bit might be OK, but let's play it safe and only touch the
Enable bit.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
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A recent update to the specification makes it clear that the host
is expected to wait for the device to acknowledge the Enable bit
transitioning to 0 as well as waiting for the device to acknowledge a
transition to 1.
Reported-by: Khosrow Panah <Khosrow.Panah@idt.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
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This change fixes a problem introduced by recent commit c34c82b
(ACPICA: Predefine names: Add allowed argument types to master info
table) in 20130328 where _INI methods are no longer executed properly
because of a memory block that is not initialized properly. ACPICA
BZ1016. Tomasz Nowicki <tomasz.nowicki@linaro.org>
References: https://bugs.acpica.org/show_bug.cgi?id=1016
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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