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Only FW version 2.0 and newer support the async event
notification. For backward compatibility block the feature
if the FW version is older then 2.0
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Implement sending and reception handlers for the
async event notification hbm commands.
Add client notification book keeping data required for the messages
notify_en to indicate whether notification is enabled
notify_ev to indicate whether an event is pending
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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FW has gained new capability where a FW client can asynchronously
notify the host that an event has occurred in its process.
The notification doesn't provide any data and host may need to query
further the FW client in order to get details of the event.
Host can subscribe or unsubscribe to the event notification via
designated HBM commands, and also the notification is carried on
a new HBM command.
This patch adds definitions of asynchronous notification HBM commands.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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For the FW with HBM version >= 2.0 we don't need to reset the whole
device in case of a particular client failing to connect, it is enough
to send disconnect a request to bring the device to the stable state.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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HBM version 2.0 and above allows ME clients in the system to
register/unregister after the system is fully initialized.
Clients may be added or removed after enum_resp message was
received
1. To preserve backward compatibility the driver can opt-in to receive
client add messages by setting allow_add field in enum_req
2. A new client is added upon reception of MEI_HBM_ADD_CLIENT_REQ_CMD
3. A client is removed in a lazy manner when connection request
respond with MEI_HBMS_CLIENT_NOT_FOUND status
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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MEI bus was designed around nfc and was hard to extend.
Instead of the hard coded way of adding the devices on the mei bus
we scan the whole me client list and create a device for each
eligible me client (mei_cl_bus_rescan); currently we support
only clients with single connection and fixed address clients.
NFC radio name detection is run as a fixup routine
The patch replaces handling the device list based on struct me_cl
to device list based on me_cl_devices. The creating a connection
is pushed from the device creation time to device enablement.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the dependency on struct ndev from the nfc device
name creation function so it is possible to use it
in a fixup routine
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently we support only clients with single connection
and fixed address clients so all other clients are blacklisted
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Blacklist nfc info client which is only used for retrieval
of the NFC radio version
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Split the device registration into allocation and device struct
initialization, device setup, and the final device registration.
This why it is possible to run fixups and quirks during the setup stage
on an initialized device. Each fixup routine effects do_match flag.
If the flag is set to false at the end the device won't be
registered on the bus.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of holding the list of host clients (me_cl)
we want to keep the list me client devices (mei_cl_device)
This way we can create host to me client connection only when needed.
Add list head to mei_cl_device and cl_bus_lock
Add bus_added flag to the me client (mei_me_client) to track if
the appropriate mei_cl_device was already created and is_added
flag to mei_cl_device to track if it was already added to the device
list across the bus rescans
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add reference to the bus device (mei_device) for easier access.
To ensures that referencing cldev->bus is valid during cldev life time
we increase the bus ref counter on a client device creation and drop it
on the device release.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of generating device id on the fly during probing we
find the matching id entry on the device id table.
Get bus the module reference counter so it cannot
be unloaded after the driver has bounded to the client
device
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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mei_cl_device_match now calls mei_cl_device_find that returns
the matching device id in the device id table.
We will utilize the mei_cl_device_find during probing
to locate the matching entry.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If event registeration has failed, the caller should know
about it.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Do not enable events implicitly in mei_cl_enable_device, it should be
done explicitly using mei_cl_register_event_cb so the events
are enabled only when needed.
The NFC drivers has been already using it that way so no need for
further changes just remove the code from mei_cl_enable_device.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename mei_cl_uevent to mei_cl_device_uevent to match
the naming convention of mei_cl_bus_type functions
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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To make the file more organize move mei client driver api
to the start of the file and add Kdoc.
There are no functional changes in this patch.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The bus-fixup.c will be a place for fixups and quirks
for all types of me client devices.
As for now it contians only the fixup for setting
the nfc device name on the me client bus.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the mei bus layer there is use of different variables
of driver and device types with no clear naming convention.
There are generic struct device and struct driver,
then mei_cl_{device, driver}, and finally mei_device which
in this context serves as a bus device.
The patch sets following naming convention:
the variables of type struct device remains dev
the variables of type struct driver remains drv
the variables of type struct mei_cl_device are now cldev
the variables of type struct mei_cl_driver are now cldrv
the variables of type struct mei_device are now bus, in bus
layer context
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The mei_cl_write function is giving up on a write cb ownership after it
was sent or queued. The write cb is then freed in the completion
handler. Especially during blocking write mei_cl_write function waits
for the completion handler and then access the freed memory to fetch the
written size. The quick fix is to store the buffer size prior to
sending, the size is not altered during the flow.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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PM_RUNTIME has been replaced with PM by commit 464ed18ebdb6 ("PM:
Eliminate CONFIG_PM_RUNTIME") hence substitute the reference on
PM_RUNTIME with PM and re-arrange the text to 80 column break.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Until now, checkkonfigsymbols.py did not check default statements for
references on missing Kconfig symbols (i.e., undefined Kconfig options).
Hence, add support to parse and check the Kconfig default statement.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Color output to make it more readable. Symbols will be printed yellow,
relevant commits (see --find) red.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Acked-by: Stefan Hengelein <stefan.hengelein@fau.de>
Acked-by: Andreas Ruprecht <andreas.ruprecht@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add option -f/--find to find relevant commits when using the --diff
option. --find is useful in case a user wants to check commits that
potentially cause a Kconfig symbol to be missing. This is done via 'git
log -G $SYMBOL' (i.e., to get a list of commits that change $SYMBOL).
The relevant commits are printed below the "SYMBOL\tFILES" line,
followed by an empty line to increase readability.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Acked-by: Stefan Hengelein <stefan.hengelein@fau.de>
Acked-by: Andreas Ruprecht <andreas.ruprecht@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When system goes into low power states like SUSPEND_MEM and
HIBERNATION, the hardware IP block may be powered off to reduce
the power consumption. This power down may cause problems on
some imx platforms, because the hardware settings are reset to
its power on default values which may differ from the ones when
it power off. This patch added the dev_pm_ops and implemented
two callbacks: suspend_noirq and resume_noirq, which will save
the necessory hardware parameters right before power down and
recover them before system uses the hardware.
Because added the dev_pm_ops, the old suspend/resume callbacks
under platform_driver will not be called any more. Changed their
prototypes and moved those two callbacks into dev_pm_ops too.
Signed-off-by: Shenwei Wang <shenwei.wang@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If serial8250_register_8250_port() fails, disable and unprepare the
clock before exiting.
Fixes: 1a8d2903cb6a ("serial: 8250_uniphier: add UniPhier serial driver")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add RS485 control for Fintek F81504/508/512
F81504/508/512 can control their RTS with H/W mode.
PCI configuration space for each port is 0x40 + idx * 8 + 7.
When it set with 0x01, it's configured with RS232 mode.
RTS is controlled by MCR.
When it set with 0x11, it's configured with RS485 mode.
RTS is controlled by H/W, RTS low with idle & RX, high with TX.
When it set with 0x31, it's configured with RS485 mode.
RTS is controlled by H/W, RTS high with idle & RX, low with TX.
We will force 0x01 on pci_fintek_setup().
Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Avoid usb reset crashes by making tty_io cdevs truly dynamic
Signed-off-by: Richard Watts <rrw@kynesim.co.uk>
Reported-by: Duncan Mackintosh <DMackintosh@cbnl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When vortex_up is failed, the skb buffers allocated by __netdev_alloc_skb
in vortex_open are not released, which may cause resource leaks.
This bug has been submitted before.
This patch modifies the error handling code to fix it.
Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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"len" is a signed integer. We check that len is not negative, so it
goes from zero to INT_MAX. PAGE_SIZE is unsigned long so the comparison
is type promoted to unsigned long. ULONG_MAX - 4095 is a higher than
INT_MAX so the condition can never be true.
I don't know if this is harmful but it seems safe to limit "len" to
INT_MAX - 4095.
Fixes: a8c879a7ee98 ('RDS: Info and stats')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"A refcounting bugfix for the i2c-core, bugfixes for the generic bus
recovery algorithm and for its omap-user, making binary file
attributes for EEPROMs behave POSIX compliant, and a small typo fix
while we are here"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: fix leaked device refcount on of_find_i2c_* error path
i2c: Fix typo in i2c-bfin-twi.c
i2c: omap: fix bus recovery setup
i2c: core: only use set_scl for bus recovery after calling prepare_recovery
misc: eeprom: at24: clean up at24_bin_write()
i2c: slave eeprom: clean up sysfs bin attribute read()/write()
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*of_iomap()* will check the device node pointer, and if the pointer is
NULL it will return error code. So refine clock's init flow by checking
the device node with this simple way; and polish a little for the print
out message.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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When xhci_mem_cleanup() is called, it's possible that the command
timer isn't initialized and scheduled. For those cases, to delete
the command timer causes soft-lockup as below stack dump shows.
The patch avoids deleting the command timer if it's not scheduled
with the help of timer_pending().
NMI watchdog: BUG: soft lockup - CPU#40 stuck for 23s! [kworker/40:1:8140]
:
NIP [c000000000150b30] lock_timer_base.isra.34+0x90/0xa0
LR [c000000000150c24] try_to_del_timer_sync+0x34/0xa0
Call Trace:
[c000000f67c975e0] [c0000000015b84f8] mon_ops+0x0/0x8 (unreliable)
[c000000f67c97620] [c000000000150c24] try_to_del_timer_sync+0x34/0xa0
[c000000f67c97660] [c000000000150cf0] del_timer_sync+0x60/0x80
[c000000f67c97690] [c00000000070ac0c] xhci_mem_cleanup+0x5c/0x5e0
[c000000f67c97740] [c00000000070c2e8] xhci_mem_init+0x1158/0x13b0
[c000000f67c97860] [c000000000700978] xhci_init+0x88/0x110
[c000000f67c978e0] [c000000000701644] xhci_gen_setup+0x2b4/0x590
[c000000f67c97970] [c0000000006d4410] xhci_pci_setup+0x40/0x190
[c000000f67c979f0] [c0000000006b1af8] usb_add_hcd+0x418/0xba0
[c000000f67c97ab0] [c0000000006cb15c] usb_hcd_pci_probe+0x1dc/0x5c0
[c000000f67c97b50] [c0000000006d3ba4] xhci_pci_probe+0x64/0x1f0
[c000000f67c97ba0] [c0000000004fe9ac] local_pci_probe+0x6c/0x130
[c000000f67c97c30] [c0000000000e5ce8] work_for_cpu_fn+0x38/0x60
[c000000f67c97c60] [c0000000000eacb8] process_one_work+0x198/0x470
[c000000f67c97cf0] [c0000000000eb6ac] worker_thread+0x37c/0x5a0
[c000000f67c97d80] [c0000000000f2730] kthread+0x110/0x130
[c000000f67c97e30] [c000000000009660] ret_from_kernel_thread+0x5c/0x7c
Cc: <stable@vger.kernel.org>
Reported-by: Priya M. A <priyama2@in.ibm.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need to check that a TRB is part of the current segment
before calculating its DMA address.
Previously a ring segment didn't use a full memory page, and every
new ring segment got a new memory page, so the off by one
error in checking the upper bound was never seen.
Now that we use a full memory page, 256 TRBs (4096 bytes), the off by one
didn't catch the case when a TRB was the first element of the next segment.
This is triggered if the virtual memory pages for a ring segment are
next to each in increasing order where the ring buffer wraps around and
causes errors like:
[ 106.398223] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 0 comp_code 1
[ 106.398230] xhci_hcd 0000:00:14.0: Looking for event-dma fffd3000 trb-start fffd4fd0 trb-end fffd5000 seg-start fffd4000 seg-end fffd4ff0
The trb-end address is one outside the end-seg address.
Cc: <stable@vger.kernel.org>
Tested-by: Arkadiusz Miśkiewicz <arekm@maven.pl>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.2-rc6
Just one major fix which has been pending since January.
Somehow it fell through the cracks, but here it is. Basically,
this fixes a bug in udc-core when gadget registration fails.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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When we share an action within a filter, the bind refcnt
should increase, therefore we should not call tcf_hash_release().
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sticks
It turns out that only Dell laptops have the separate button bits for
v2 dualpoint sticks and that commit 92bac83dd79e ("Input: alps - non
interleaved V2 dualpoint has separate stick button bits") causes
regressions on Toshiba laptops.
This commit adds a check for Dell laptops to the code for handling these
extra button bits, fixing this regression.
This patch has been tested on a Dell Latitude D620 to make sure that it
does not reintroduce the original problem.
Reported-and-tested-by: Douglas Christman <douglaschristman@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add a proper module alias so the driver can be autoloaded when the
parent axp20x mfd driver registers its cells.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Carlo Caione <carlo@caione.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Patch 17dd3f0f7aa7: "[PATCH] drivers/input/joystick: convert to dynamic
input_dev allocation" from Sep 15, 2005, leads to the following static
checker warning:
drivers/input/joystick/turbografx.c:235 tgfx_probe()
error: buffer overflow 'tgfx_buttons' 5 <= 5
drivers/input/joystick/turbografx.c
195 for (i = 0; i < n_devs; i++) {
196 if (n_buttons[i] < 1)
197 continue;
198
199 if (n_buttons[i] > 6) {
^^^^^^^^^^^^^^^^
Possibly off by one. >= 6.
Let's change the upper value to ARRAY_SIZE(tgfx_buttons) to ensure we do
not reach past the end of the array.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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openvswitch modifies the L4 checksum of a packet when modifying
the ip address. When an IP packet is fragmented only the first
fragment contains an L4 header and checksum. Prior to this change
openvswitch would modify all fragments, modifying application data
in non-first fragments, causing checksum failures in the
reassembled packet.
Signed-off-by: Glenn Griffin <ggriffin.kernel@gmail.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add initial dtsi file to support Marvell Berlin4CT SoC with
quad Cortex-A53 CPUs.
It also adds dts file for Marvell Berlin4CT DMP board which is
based on Berlin4CT SoC.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
"There are two critical regression fixes for CephFS from Zheng, and an
RBD completion fix for layered images from Ilya"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: fix copyup completion race
ceph: always re-send cap flushes when MDS recovers
ceph: fix ceph_encode_locks_to_buffer()
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security layer fix from James Morris:
"Yama initialization fix"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
Adding YAMA hooks also when YAMA is not stacked.
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Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- a bogus BUG_ON in ixp4xx that can be triggered by a dst buffer that
is an SG list.
- the error handling in hwrngd may cause a crash in case of an error.
- fix a race condition in qat registration when multiple devices are
present"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
hwrng: core - correct error check of kthread_run call
crypto: ixp4xx - Remove bogus BUG_ON on scattered dst buffer
crypto: qat - Fix invalid synchronization between register/unregister sym algs
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module fix from Rusty Russell:
"Single overzealous locking assertion fix"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: weaken locking assertion for oops path.
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NUMA emulation needs proper means to mangle the book/mc/core topology
of the machine. The topology tree (toptree) consistently maintains cpu
masks for the root, each node, and all leaves of the tree while the
user may use the toptree functions to rearrange the tree in various
ways.
This patch contains several changes from Michael Holzheu.
Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Enable core NUMA support for s390 and add one simple default mode "plain"
that creates one single NUMA node.
This patch contains several changes from Michael Holzheu.
Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Make mt6311_buck_ops, mt6311_ldo_ops and mt6311_regulators const and remove
unneeded error variable in mt6311_i2c_probe().
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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These became unused by the commit 6356437e65c2
("spi: spi-pxa2xx: remove legacy PXA DMA bits").
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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